Threadwell

Recent Notes

DemetriSpanos
Oct 06, 2026
NOTimothyLottes
Oct 06, 2026
bonzajplc
Oct 06, 2026

archive

2872 items with this tag.

Oct 06, 2026
DemetriSpanos
Oct 06, 2026
NOTimothyLottes
Oct 06, 2026
bonzajplc
Oct 06, 2026
Threads
- archive
Oct 04, 2026
Thread: Serious talk on SteamDeck 2 speculation starting with numbers based on the nice summary here https://www.youtube.com/watch?v=QSg5pjkcg9E - TLDR, actually this is exciting if true.
Sep 29, 2026
Just adding that decompilation has "verifiable rewards": clang compiles source, AI tries to reverse, ASTs are compared, AI gets training signal.
Sep 24, 2026
Exploring minimum size compilers on x86-64, specifically branch-free logic (one predicted jnz to loop per input token).
Sep 17, 2026
Me and my @plasticdemo team, escaping a wave of green aliens.
Sep 15, 2026
Evening project - building a spiritual successor language to what could pass as a replacement for C64 boot BASIC boot but on a x86-64 machine ...
Sep 08, 2026
Jonathan_Blow
Sep 05, 2026
sh4forever
Sep 05, 2026
stainless_code
Sep 05, 2026
SebAaltonen
Sep 05, 2026
AgileJebrim
Sep 04, 2026
Nothing changes the physical reality of the inefficiency of a vector of 64-bit pointers on the GPU.
Sep 04, 2026
Working on the script for GPU architecture, I’ve realized it’s going to have to be multiple parts.
Sep 04, 2026
Even on the cpu indices > pointers.
Sep 03, 2026
So if a true “No Graphics API” requires 0 lines of user CPU code, does that make it infinitely better than this? Asking for a friend.
Sep 03, 2026
57 lines in polished Vulkan Triangle on my minimal API.
Sep 01, 2026
Ed__dev
Aug 30, 2026
https://publications.csail.mit.edu/lcs/pubs/pdf/MIT-LCS-TR-421.pdf
Aug 29, 2026
ENDESGA
Aug 29, 2026
ID_AA_Carmack
Aug 29, 2026
fchollet
Aug 29, 2026
skdh
Aug 29, 2026
QVHenkel
Aug 29, 2026
_rygo6
Aug 29, 2026
cem_yuksel
Aug 29, 2026
lemire
Aug 29, 2026
lookoutitsbbear
Aug 29, 2026
rfleury
Aug 29, 2026
valigo
Aug 29, 2026
FUZxxl
Aug 29, 2026
OSdev_
Aug 29, 2026
_Felipe
Aug 29, 2026
fiigii
Aug 29, 2026
flowerornament
Aug 29, 2026
frankdejonge
Aug 29, 2026
DevLeaderCa
Aug 29, 2026
cmuratori
Aug 29, 2026
icculus
Aug 29, 2026
pikuma
Aug 29, 2026
wookash_podcast
Aug 29, 2026
VPCOMPRESSB
Aug 29, 2026
VictorTaelin
Aug 29, 2026
dharmatrade
Aug 29, 2026
its_bvisness
Aug 29, 2026
pickover
Aug 28, 2026
EricLengyel
Aug 28, 2026
FreyaHolmer
Aug 28, 2026
TheAllenChou
Aug 28, 2026
anisomorphism
Aug 28, 2026
eshear
Aug 28, 2026
hamish_todd
Aug 28, 2026
matiasgoldberg
Aug 28, 2026
TheGingerBill
Aug 28, 2026
martin_cohen
Aug 28, 2026
nicbarkeragain
Aug 28, 2026
tsoding
Aug 28, 2026
ninjadynamics
Aug 28, 2026
rygorous
Aug 28, 2026
SheriefFYI
Aug 28, 2026
TylerGlaiel
Aug 28, 2026
WarrenInTheBuff
Aug 28, 2026
alexdotjs
Aug 28, 2026
hasen_95dx
Aug 28, 2026
vkrajacic
Aug 28, 2026
RandyPGaul
Aug 28, 2026
danishnxt
Aug 28, 2026
molecularmusing
Aug 28, 2026
Bobby_Anguelov
Aug 28, 2026
no1zex
Aug 28, 2026
TimSweeneyEpic
Aug 28, 2026
Does learning assembly or low-level languages make you a better high-level programmer, or is it unnecessary today if you're sticking to high-level languages?
Aug 28, 2026
Similar to string tags, if your program has deferred actions e.g.
Aug 27, 2026
ocornut
Aug 27, 2026
noinconsistency
Aug 27, 2026
HostOfMeta
Aug 27, 2026
LandsknechtPike
Aug 27, 2026
meesedev
Aug 27, 2026
KaidoGenkai
Aug 27, 2026
ThePrimeagen
Aug 27, 2026
After 2 decades of using it naively, I have deconstructed the (×) cross product.
Aug 27, 2026
Thinking about visible pipelining in the ISA.
Aug 26, 2026
MissQuickstep
Aug 26, 2026
JohannesVuorine
Aug 26, 2026
iquilezles
Aug 26, 2026
bmcnett
Aug 26, 2026
ChipsandCheese9
Aug 26, 2026
kechogarcia
Aug 26, 2026
m_schuetz
Aug 26, 2026
tom_forsyth
Aug 26, 2026
hsn8086
Aug 26, 2026
levelsio
Aug 26, 2026
mike_acton
Aug 26, 2026
simplex_fx
Aug 26, 2026
For an integer DSP, if one wants 2 negative operand modifiers: that requires 2 carry ins.
Aug 26, 2026
Tech overlords have long since realized just like chips hit power and thermal walls, and benefit/cost of process shrinks is leveling off, that the amount of $ they can extract from eyeball ad time was going asymptotic, and could go negative with population decline ->
Aug 26, 2026
This was my last day at HypeHype.
Aug 26, 2026
Before mastering SIMD you have to master loop unswitching
Aug 26, 2026
Not surprising since geometric algebra is a cult outside of mathematics, per John Baez.
Aug 25, 2026
CharlieMQV
Aug 25, 2026
BOENSAW
Aug 25, 2026
Dispatch_Graph
Aug 25, 2026
Triang3l
Aug 25, 2026
MyNameIsMJP
Aug 25, 2026
rianflo
Aug 25, 2026
KostasAAA
Aug 25, 2026
FFmpeg
Aug 25, 2026
mmalex
Aug 25, 2026
One downsides to being a left justified machine and emulated on a FPGA is that one cannot use the built-in DSP's rounding capability through CIN.
Aug 25, 2026
How does ASLR interact with PE relocations during Windows process startup? Suppose a DLL was linked with a preferred base address, but ASLR causes it to be mapped somewhere else.
Aug 25, 2026
Examples of Odin's new inline `asm` templates!
Aug 25, 2026
This comment was asking if I used LLMs/agents for anything, so I wanted to explain why I have been recently using them for.
Aug 25, 2026
If you’ve done serious compiler optimization work on a product with a sufficiently large user base, you’ve almost certainly seen bug reports like this:
Aug 25, 2026
I think one of the biggest level ups I had in programming was shaking off the metaphor associated with data "moving".
Aug 24, 2026
kenpex
Aug 24, 2026
Archive
- archive
Aug 24, 2026
Sources
- archive
Aug 24, 2026
winning_tactic
Aug 23, 2026
Operands/time = Perf
Aug 23, 2026
The sticky slope to tyrantry starts with people that fear being targeted for expressing an opinion -> self sensoring, etc -> and one can already see this with flock, people don't want to sign a petition because they know that will become an instant list of targeted individuals
Aug 22, 2026
Start with SPIR-V or PTX instead.
Aug 22, 2026
It takes a special kind of stupidity to believe that police are needed because of inherent human nature, aka some people will do bad things in certain situations, and simultaneously believe that same truth doesn't apply to those controlling 1984 style surveillance.
Aug 22, 2026
State machines are what CRUD-minded developers create when trying to model processes.
Aug 20, 2026
I dev with the debugger attached 100% of the time, and unless I'm doing something visual like UI, I literally always put a breakpoint at the beginning of the new code I've just written and step through it before I ever let it "run".
Aug 10, 2026
Been saying this for a decade> Now HU has a really good summary graphic after the fact - https://www.youtube.com/watch?v=nwrDdpkw_oA - HU covers the major points well
Aug 10, 2026
I wasn’t joking!
Aug 09, 2026
Silly quick test of what super-scalar sprites might have looked like with 8xSGSSAA (so nearest and still no mips) - LEFT [1x] | RIGHT [8x] - https://www.shadertoy.com/view/7fK3RV - Actually quite nice.
Aug 08, 2026
Extended (2x) version of my SIGGRAPH 2026 talk:
Aug 07, 2026
A good way to evaluate one axis of quality of an abstraction is to inline every function call, and see how much duplicate work you can either deduplicate or turn into a loop (rather than several independent function calls).
Aug 06, 2026
Seems like one of the pain points with Xlinix DSPs that if you want either a 32-bit ADD or a MAD you need to CLB the A B inputs differently due to how the ADD path takes A:B and the MUL takes A,B.
Aug 06, 2026
just saving my last conversation with Fable on this entire flattener debacle.
Aug 05, 2026
Read index-able shift register saves on not needing address lines for the store, just need a clock enable bit.
Aug 05, 2026
"writes … have write-only caches that are invalidated, and all update bits are sent to memory AT THE END OF A CLAUSE"
Aug 05, 2026
An example of this - a classic way to construct a tree in code is with push / pop style calls.
Aug 03, 2026
IMO basically every "object creation API" you have should take a string label that is for internal use only.
Aug 02, 2026
I'm really curious what the M64 cart bus can actually pull off in DMA bandwidth (and capacity).
Aug 02, 2026
M64, the physical FPGA+PSRAM hardware offers such an extremely challenging problem to solve for a neo-vintage retro machine design.
Aug 02, 2026
Re-FPGA-land ALUs - I'm firmly distracted by an alternative history of the unexplored left justified extreme fixed point.
Jul 31, 2026
One unfortunate shift in 1st party Sony content has been from family friendly to a core focus on either extreme graphic violence or say non binary or etc.
Jul 29, 2026
Seriously fucking awesome! In a world of total enshittification, ModRetro turns the tables and shows us that doing it right is still possible.
Jul 29, 2026
Think about it - the M64 is probably going to be one of the best FPGA device platforms for custom fantasy HW platform development.
Jul 22, 2026
Microsoft / Sony / Nintendo keeping their console SDKs behind NDAs has been a real issue limiting the sharing of open source work in game dev.
Jul 22, 2026
Entertaining aspect of AI bubble is watching humans try to explain how profit & productivity is amplified by AI -> yes, most certainly if I was to go in your fridge and steal your hamburger meat, and just modify it with a different sauce, my burger stand looks more profitable too
Jul 22, 2026
Working through rough draft of assembly for a different idea for a micro macro-forth.
Jul 20, 2026
Perhaps the most important aspect of AI is the legal framework it establishes to bypass patents and IP law.
Jul 19, 2026
Probably shouldn't consider this -BUT- apparently writing to ax doesn't change the other 48-bits.
Jul 19, 2026
If a game development studio claims that it uses “craft coding” or that there is no AI involved in making its games, there is a strong chance that they are lying.
Jul 18, 2026
All {0-6} argument syscall options in 32-bytes.
Jul 17, 2026
Oh, F-it! The urge to drop the C baggage was too strong, using nasm to bootstrap another radical Forth for Linux.
Jul 17, 2026
> Read this and your next model will be 10x smarter.
Jul 15, 2026
One advantage of SAR (aka signed '>>') is that the shift-by operand HW uses only the 5|6 LSBs automatically.
Jul 15, 2026
GPU people are so pretentious.
Jul 14, 2026
Another round of getting optimized error checking.
Jul 13, 2026
Going all in to only {if,goto} but through better macros,
Jul 13, 2026
I'll mark this down a more code obfustication for most humans, but for me it's another useful shorthand.
Jul 11, 2026
Rethinking Vulkan queue choice.
Jul 09, 2026
So most run Linux from a graphical login, I still prefer to boot into a framebuffer console.
Jul 08, 2026
Oh, my RADV driver says vkGetShaderInfoAMD is available [GPU disassembly dumps].
Jul 06, 2026
Vulkan starts with the ping pong between getting an instance proc addr so one can get vkCreateInstance, then using that to create an instance so one can get the remaining functions.
Jul 04, 2026
Oh no, maybe another Wine bug (error photo)? I'm also getting an "AUDCLNT_E_DEVICE_IN_USE" (0x8889000A) when http://x.com is open (which would imply pipewire owning the audio device).
Jul 04, 2026
*sighs*
Jul 03, 2026
Following the succession (thanks) of re-trying WASAPI using this example which has been pre-minimized and de-C++'ed: https://gist.github.com/mmozeiko/5a5b168e61aff4c1eaec0381da62808f#file-win32_wasapi-h - But I'm missing something on how to get the C++ as C linking to function (cross compiling), doesn't easily work out of the box.
Jul 02, 2026
Settings I'm using for snd_pcm_sw_params for ALSA, don't have docs for all of this, seems to work.
Jul 02, 2026
Yuck, starting on WDM/KS audio interface for WIN32, much more painful than ALSA.
Jul 01, 2026
It isn’t the point of this project, but looking at the triangulations made me think about some GPU optimization esoterica.
Jul 01, 2026
Did manage to get ALSA to function without SNDRV_PCM_IOCTL_HW_REFINE and only with SNDRV_PCM_IOCTL_HW_PARAMS.
Jul 01, 2026
Haha damn, I thought I had a great idea, for Wine workarounds, I could just detect Wine (easy), and then make the associated Linux system call from inside Wine using inline asm! [no surprise, it doesn't work]
Jul 01, 2026
Working on the portable thread scheduling priority interface.
Jun 30, 2026
Working on the Linux thread priority code.
Jun 29, 2026
ALSA hell month continues: remember it might be "open source" but it is definitely "closed documentation" [those docs are securely trapped in the minds of the authors].
Jun 29, 2026
Eventually figure out enough to get aplay to actually play a wave file, had to find an explicitly stereo wav else it would refuse to just duplicate the mono channels.
Jun 27, 2026
Deterrent to ALSA is just parsing through snd_pcm_open() source.
Jun 26, 2026
Quick summary of why not {pselect, ppoll, epoll_pwait2} style non-TCP IO [it can amplify kernel transitions].
Jun 24, 2026
In ancient Egypt, writing was concentrated among scribes, giving a small educated class control over taxes, laws, land, religion, and state power while most people depended on them to understand the systems ruling their lives.
Jun 20, 2026
Because sharing is caring, in case anyone is struggling with PS2 dev, I compiled all the lessons I've learned so far.
Jun 19, 2026
humans are just so confused about everything, we invent layers of complexity on top of a simple underlying reality, assign different names to the same fundamental concepts, spawn entire fields to investigate the same mathematical objects under different grammatical names
Jun 16, 2026
Unsigned Integer divide by zero, x/0=?, what answer is preferred {x (nop), 0, or 0xffffffff (max integer)}?
Jun 14, 2026
On Linux I do speculative pinning of CPU memory via mlockall.
Jun 14, 2026
This is maybe a hot take, but I think game devs hurt themselves a lot by defaulting to either Unity or Unreal.
Jun 13, 2026
Cross compilation is up.
Jun 13, 2026
Interesting how on this Linux box, scheduling NOPs like nanosleep of 0 and futex waiting on an already set memory location … both take around 60 microseconds, cannot afford to do many of those per millisecond.
Jun 13, 2026
Nanorc done and back to actual programming with the new font.
Jun 10, 2026
So I'm on Linux now, but obviously I cheated, because this is a SteamOS machine (pre-installed).
Jun 09, 2026
i'm crying i found a "minimal" vulkan example and the file has 2,000 lines of C++
Jun 07, 2026
@NOTimothyLottes I see!
Jun 03, 2026
Back running 640x480 on my VGA CRTs to prep for workflow that ports down to 480i60 for NTSC.
Jun 02, 2026
For Windows trying to standardize on HIGHEST_PRIORITY_CLASS, mixed with THREAD_PRIORITY_{IDLE,NORMAL,TIME_CRITICAL}.
Jun 02, 2026
It's unfortunate there isn't an easy way to map the page file so that writes don't automagically post to storage, meaning map then turn off flush until a time desired by the programmer.
Jun 02, 2026
The first way people usually learn code compression is by pulling common things out into helper functions, but in my view the complexity of adding a new entry point is often overlooked, and things quickly turn into a mess.
Jun 01, 2026
Windows thread priority.
May 31, 2026
no-debugger-debug / console / printf-style - prior evolved to one mmapped fixed-width-height log file with an atomic for multi-thread|process messages - but even that seems too complexy ...
May 30, 2026
I don’t think hardware vendors are going to practically be able to ditch the CPU from system architectures any more than they’ll ditch the GPU, but I do think the GPU should become the master device driving decisions rather than just a slave accelerator for heterogeneous apps.
May 30, 2026
Renovating CPU clock code.
May 29, 2026
Usually I would expect this to be lame.
May 29, 2026
Took perhaps a 5 month vacation from at home programming, but getting back in the grove with 1hr/day.
May 29, 2026
animation + mouse + layout looking realllllllll
May 26, 2026
Nobody Cracks Open a Programming Book Anymore:
May 24, 2026
I’ve taken to using a simple interview question with folks.
May 23, 2026
Another memorial weekend thought: for either
May 12, 2026
We have code reviews at Isochron and I require my devs to produce streamlined, not modular, code.
May 10, 2026
PSA: if you've never done graphics programming before and are interested in learning the fundamentals, it is very important that you don't start with Vulkan.
May 06, 2026
I take no pleasure in reinventing the wheel, but was sufficiently frustrated that Windows Magnifier was so slow to open/close and had usability issues (tried several other ones which had issues too), so I wrote my own in-app magnifier to inspect rendering issues.
May 05, 2026
Garbage collection is still unfit for demanding games:
Apr 19, 2026
It pisses me off that Road Trip isn’t well known as one of the greatest ps2 games of all time.
Apr 06, 2026
I'm completely convinced at this point that the "Command Palette" is a fundamental UI concept, and should be in all applications.
Mar 25, 2026
the more experienced I get programming games the more that I realize patterns like inheritance and components don't matter, the only thing that matters is functions and entities which run functions...
Mar 19, 2026
I'm currently thinking through the Murail "programming language"—and it's a weird one.
Mar 16, 2026
How about removing {call,return,branch,conditional-branch}.
Mar 13, 2026
Human nature is to oversell things:
Mar 08, 2026
I'll add one conspiracy theory for everyone listening: After STP's source was out there, DLSS4 'transformer' magically gained 'sharpness' but I don't believe it was from the ML model change at all, instead I think they just introduced the same error feedback mechanism in STP ...
Mar 05, 2026
This ignores an important shift in the gaming industry, which is the dominance of art & production teams in producing content, and the shrinking role of programming teams doing the same.
Mar 02, 2026
I've written a new blog post called "Dual Approaches to Projective Geometric Algebra".
Feb 27, 2026
A strange notion that assumes that text is the only way to program computers.
Feb 12, 2026
@onatt0 @Ed__dev Here's how I debug JONESFORTH:
Feb 06, 2026
When a is a vector and b is any multivector, the geometric product a ⟑ b decomposes as
Jan 28, 2026
an interpolating C² continuous quintic spline
Jan 23, 2026
I've worked very hard over many years to develop a complete and correct picture of Grassmann and geometric algebras, often in the face of extreme antagonism.
Jan 19, 2026
Finally learned why Denuvo destroys performance.
Jan 14, 2026
@VPCOMPRESSB Can do that.
Jan 14, 2026
Dual numbers (the surreals) are at least as exciting and useful as imaginary ones if not moreso, but far less widely known.
Jan 11, 2026
Ok, the Win32 API sure is something, but WOW wayland is awful
Dec 26, 2025
I can't believe people are still pushing this nonsense.
Dec 23, 2025
Would papers get rejected if they used legal code with variable names instead of Greek laden pseudo code?
Dec 18, 2025
When I'm making educational material, one of the techniques I almost always use is not just explaining why the correct idea works, but why the incorrect ideas don't work.
Dec 17, 2025
Significant amount of bloat dropped :-) 🎉🥳🎈
Dec 16, 2025
My "No Graphics API" blog post is live! Please repost :)
Dec 15, 2025
None of these advantages are mutually exclusive with GUI, it’s just that legacy infrastructure doesn’t support it well.
Dec 04, 2025
On FOSS, and why we should pay for good software:
Nov 30, 2025
Very short video describing an alternative way to compute Circle of Confusion size for DOF in post process that does the minimal adjustment to the real world model to fit inside the practical limits of the DOF pass (like max radius): https://youtu.be/juraE2oJzAQ
Nov 20, 2025
no Tokens and no ASTs.
Nov 17, 2025
I wish everyone would just adopt "reversed with infinite far" projection matrixes so I could only optimize for the fastest and highest precision option, but I'm guessing people haven't all migrated over :(
Nov 17, 2025
People who say "C is modern-day assembly" usually way undershoot it.
Nov 17, 2025
When it comes to pointers, "just use 64 bit integer" is way more intuitive to me.
Nov 13, 2025
branch-free bit trick: string detection/selection.
Nov 10, 2025
@NOTimothyLottes i'm not familiar with your problem.
Nov 04, 2025
Imagine language that has NO {stack, calls, returns, conditional branches, explicit jumps, functions with arguments and returns}
Nov 04, 2025
GPU could decide the CPU control-flow, very interesting!
Nov 01, 2025
It is distressing how many people in my replies say this is just “an abstraction” or a “simplified explanation”.
Oct 13, 2025
Short talk on how I do CPU-side debugging without a debugger using a simple memory mapped file message logging system with lock-free atomic and file-io-free message store: https://www.youtube.com/watch?v=EaUSAVcXwEc ...
Oct 10, 2025
Thread about this from @rfleury - https://www.rfleury.com/p/multi-core-by-default - because I used to do that too on the CPU ...
Oct 10, 2025
New post: "Multi-Core By Default"
Sep 03, 2025
Re John @dark1x and https://youtu.be/UxquMm5Aka8?si=cmuDThfWIdoAelOh&t=4233 covering the BlurBusters CRT sim in ShaderGlass from perspective of one of the co-authors for the shader BFI technique ...
Aug 28, 2025
It’s easy to assume that people reading my tweets are already familiar with the context of the problems I aim to solve, but clearly this post took off with a new audience, so let me try to rewind a bit to focus on why I do what I do.
Aug 26, 2025
Assuming the risk of appearing extremely dumb in front of everyone here but, how would you find and explain your rationale for the value of the angle β in the diagram below? Someone told me that my approach is wrong so I just want to check that I'm not going crazy.
Aug 19, 2025
Is there an introduction to GPU programming for the seasoned assembly programmer? All tutorials I can find start with a dozen layers of abstraction and never really seem to get down to the metal.
Aug 19, 2025
You need to walk before you run.
Aug 19, 2025
Palettes should be first class functionality provided by the operating system for any program.
Aug 18, 2025
Existing search tools on Windows suck.
Aug 15, 2025
Still on my TODO list to present non-local mapping talk at some point.
Aug 14, 2025
I got a bit colorful in this reply, but let me describe why this drives me so crazy, especially now in 2025:
Aug 13, 2025
Another reason to love @ladybirdbrowser.
Aug 10, 2025
We are in era of "scaling by $" now.
Aug 01, 2025
At least for my next at home project, I think the right answer is a building it from assembly scratch series on video with a public domain release of the 'engine' which will be a live edit toy for hardcore GPU-side PC game dev in certain constraints [which keep it simple]
Jul 31, 2025
Been on the fence on writing shader interfaces in GLSL vs something else that translates to SPIR-V.
Jul 31, 2025
People claim assembly is hard.
Jul 25, 2025
simple pure data intemaces in memory would've been way better than to set different sets of registers on each different arch, would've allowed replay&reuse across languages without FFI
Jul 23, 2025
"nobody self includes with defines to reorder C code" ...
Jul 22, 2025
i've developed some techniques to eliminate tables while remaining branch-free.
Jul 22, 2025
"Branchless Programming" is a term used to describe a programming style that improves performance by avoiding branches (e.g.
Jul 19, 2025
Peanut gallery vs Parallelizing the Physics Solver
Jul 16, 2025
Re https://www.youtube.com/watch?v=hRX0Ep7gacQ - Actually I'm not at all surprised they used FSR1, because it's damn fast, this title was targeting 60Hz, and it has a boat load of fast dynamic and/or transparent stuff.
Jul 15, 2025
I can't help but have this feeling that we're missing something in programming language design that will make SIMD much easier for the average programmer to use.
Jul 08, 2025
[0] "Physical Video Games are Dying..." MVG's take: https://www.youtube.com/watch?v=PeQ2ukszcq8
Jul 06, 2025
So lets root SKG: the core problem is near zero sum, limited income and consumer base --MIXED-- with saturated production: a surplus of content ...
Jul 03, 2025
Math.
Jul 01, 2025
"I conclude that there are two ways of constructing a
Jun 28, 2025
i vibe coded something horrendous and I love it: a python c preprocessor that finds blocks like /* python <arbitrary python code> */ in a .c file, runs the python, and dumps the stdout after the comment, replacing any old block if needed.
Jun 07, 2025
I've decided to make this explanation public, in case someone else is also interested.
Jun 01, 2025
@pankkor @onatt0 I personally go free form, no data stack, no arguments, just branch points and program specific aliased usage of registers (regions of code have their own "structure" of register usage).
May 30, 2025
Generalizing to a convex polygon with n vertices, clipping against a single plane can increase the total vertex count by at most one.
May 23, 2025
I wrote a new blog post about something I'm calling the transwedge product.
May 19, 2025
Some people might read this and think, that's just not my world, I am stuck in this world where software breaks all the time and everything I build is disposable.
May 10, 2025
???
Apr 30, 2025
@onatt0 [3] I got side tracked by building a language that could be assembled from on the GPU in SIMD.
Apr 30, 2025
@onatt0 I laugh when people say C is like assembly, they are missing what we actually did in assembly back then, which was all registers and globals and gotos, no stacks.
Apr 30, 2025
@onatt0 It would be interesting to size stuff so the limits align with instruction cache size limits.
Apr 30, 2025
@onatt0 The big industry mistake was factoring into thousands of functions in code, instead of just baking all that into a "protocol" of data structures in memory.
Apr 30, 2025
@emhyr7_ @onatt0 Things could get really interesting if a company like AMD supported transparent data compression on a last level cache which is shared CPU/GPU.
Apr 30, 2025
holy truthnuke - and people think C is the optimal state of possible runtimes when it's a very limited runtime to have state mixed call/data-stacks
Apr 30, 2025
To the degree this is true, it’s only in a technical sense.
Apr 22, 2025
What I ended up doing was transforming axis-aligned rectangles into a pair of overlapping pentagons arranged like this.
Apr 16, 2025
__/ CS OPTIMIZATION BRAIN DUMPING \__
Mar 31, 2025
For years I have used dsound.dll to play audio on Windows, because if you have your own mixer etc then the more-recent APIs don't really do anything better.
Mar 28, 2025
Indoor scenes in HypeHype are starting to look acceptable.
Mar 22, 2025
you can now add textures
Mar 19, 2025
In the GDC bookstore.
Mar 08, 2025
Stupid hardware question: Why does AMD use several counters instead of one u64 bitmask for memory ops?
Mar 04, 2025
Seriously?
Feb 25, 2025
IT WORKS!!!!!
Feb 14, 2025
Hey, gpu guys like @SebAaltonen @NOTimothyLottes why do rendering guys usually wrap 3d apis at low level in engines, creating some generic mid-low level API?
Feb 09, 2025
Check your compiler.
Feb 09, 2025
Hey, don't "optimize" conditional moves with mix()+step().
Feb 05, 2025
I mean, 1050 and 1060 are just top20 GPUs in FUCKING STEAM HW SURVEY.
Feb 04, 2025
__/ "GELATINOUS PIXEL SOUP!" \__
Jan 31, 2025
Comparing matrix to quaternion code:
Jan 29, 2025
PTX is a form of assembly language
Jan 28, 2025
So we (the industry) really ever went back to the MSAA based TAA combinations and applied everything we learned in the past decade ...
Jan 26, 2025
Often overlooked aspect of GPU perf scaling
Jan 22, 2025
Simple napkin analysis of that high-end CRT scalar (monochome one) ...
Jan 19, 2025
Retained mode == cache data ahead of time.
Jan 18, 2025
Good landmine to step on: AMD vs Hotz.
Jan 09, 2025
Just for Fun: Started to look into "Cardinal Cubic O-MOMS" for resampling, some refs:
Jan 06, 2025
One of the downsides of V_CNDMASK_B32 on AMD is that you burn the SGPRs on the VCC bool, so if you are selecting between constants, those require extra V_MOV_B32 ops.
Jan 04, 2025
For the love of octahedrons: https://fileadmin.cs.lth.se/graphics/research/papers/2008/simdmapping/clarberg_simdmapping08_preprint.pdf
Dec 30, 2024
Geometric algebra is linear algebra.
Dec 30, 2024
The simplest multi-producer-multi-consumer ring buffer data structure would seem to need one "trit" (ternary bit) of state per buffer entry, for the states "awaiting write", "awaiting read", "busy"
Dec 30, 2024
I love this dichotomy between Odin (@TheGingerBill) and Jai (@Jonathan_Blow)
Dec 24, 2024
I have a moral dilemma in the design of the programming language.
Dec 24, 2024
Been playing with the spatial energy redistribution for half a decade for CRT-stylized scaling.
Dec 22, 2024
__/ Fixing AtomicAdd - Benchmarking AMD+NV \__
Dec 21, 2024
Hopefully with this last atomic workaround I'm almost done with cleaning and fixing the 'bind-everything-once' style Vulkan engine design.
Dec 21, 2024
__/ How to Unbreak AtomicAdd on AMD PC \__
Dec 20, 2024
__/ Raytastic Friday \__
Dec 19, 2024
Binary fuse filters are a faster alternatives to Bloom filters: they allow you to check (probabilistically) that an element is part of a set.
Dec 18, 2024
@munohikari @SebAaltonen You left out the bit where I also said no graphics pipeline.
Dec 18, 2024
Fixed all our Vulkan bugs:
Dec 18, 2024
One of the most powerful lessons I learned as a programmer was to use combinatoric spaces to my advantage, rather than allowing them to explode into—for example—handwritten source code.
Dec 16, 2024
That would be highly dependent on how many Bézier curves are involved, whether you're using only fills or a mix of fills and strokes, what stroke features are used (cap, join, dashing), and how fast you're able to upload the output data to GPU-accessible memory.
Dec 16, 2024
@GustavSterbrant So I don't know that SPIR-V vs OpTypeInt 24 question, but if someone didn't write tests for that it's likely never been setup to be pattern matched.
Dec 15, 2024
This video shows the velocity buffer used to render motion blur during post-processing in the C4 Engine.
Dec 15, 2024
"Buffer zoo" is more about the silly season of things needed on the Vulkan shader side to do what you actually want which is just get instruction intrinsics.
Dec 15, 2024
The real "buffer zoo" problem with Vulkan is needing to make your HW instruction emulation macros with overcomplete both {offset, and index} inputs so the emulation can choose the correct one based on whatever crap path is required {SSBO, TEXEL_BUFFER, future pointer}
Dec 12, 2024
I was surprised to hear that many graphics people were surprised to learn that normals should be transformed with the adjugate transpose matrix.
Dec 09, 2024
Bug report: I want to scale an object to be flat.
Nov 27, 2024
Here's some video of the SSAO buffer as I run around in the C4 Engine.
Nov 22, 2024
Sometimes you only want to wave-coherent branch to something extremely rarely.
Nov 20, 2024
[0] Been wanting to do this for a long time, a thread on hard-core shader development.
Nov 19, 2024
Working towards a new bring up of front-buffering on NV via VK.
Nov 16, 2024
[0] What a horrible term 'printf-debugging'
Oct 21, 2024
> http://3dmath.xyz _
Oct 16, 2024
Source engine is correct here.
Oct 01, 2024
okay so I'm generally pro-operator-overloading but even I will admit it's a little silly that m*(q*v) can be a matrix multiplied by the result of a quaternion rotation of a vector v interpreted as a column vector
Aug 21, 2024
Following up with 3D homogeneous coordinates.
Aug 11, 2024
A slice perpendicular to the null direction in the diagram about the observer horizon below looks exactly like this complement rotation I found in projective geometric algebra.
Aug 07, 2024
"The problem is that so long as there's sufficiently many crap-producers reviewing each other's crap, crap will continue to be produced."
Aug 02, 2024
The reason I have been giving talks about geometric algebra at NASA recently is that they (rightfully) found the so-called “plane-based” formulation clunky and unpalatable.
Jul 25, 2024
Once in a while I watch a video of someone integrating the library, taking notes of how I could improve that experience.
Jul 18, 2024
Did you know that quaternions have two different representations in homogeneous coordinates? They make up the special orthogonal group SO(3), but that's a subgroup of two larger complementary transformation groups.
Jul 18, 2024
I've been studying geometric algebra on and off, and recently I'm starting to feel the desire to share what I've learned about GA and its applications in games.
Jul 02, 2024
In conformal geometric algebra, the dot product between two spheres s and t gives the product of their radii times the cosine of the angle 𝜙 between the tangent planes where they intersect.
Jun 28, 2024
Can we build an optimal processor?
Jun 21, 2024
Short post comparing Projective Geometric Algebra and Conformal Geometric Algebra for the simple problem of line-sphere intersection:
Jun 21, 2024
The biggest flaw in most systems’ designs is the belief that it’s possible to design a system free of flaws.
Jun 12, 2024
Hardware & OS are extremely more complex now and programmers sit too far from the machine.
Jun 07, 2024
I've set up a simulation of a Rotman lens to drive a phased array in Elmer.
Jun 06, 2024
I will give a talk at #SIGGRAPH2024 about a new way of evaluating #Bezier #curves that I call Seiler's Interpolation, using half the linear interpolations of #deCasteljau's algorithm.
May 31, 2024
one of the coolest and most accessible ways to visualize quantum physics is by manipulating phases of sound waves
May 09, 2024
I just noticed.
May 04, 2024
A good programming language does not force you to write code in any specific way.
May 04, 2024
@Nerfoxingaround @SebAaltonen It was only later when systems forced C ABI library interfaces with it's stacks and junk that things got messy and only because of the C.
May 03, 2024
Why should one be able to code without autocomplete and without a good IDE? I want to click on a symbol to find where it's defined and click on include file to go there, etc.
Apr 30, 2024
I had a friend that worked in the support team and was famous for being too friendly with the customers.
Apr 28, 2024
A common argument against the east coast metric signature (−+++) is that timelike magnitudes are negative.
Apr 23, 2024
@BelgianRenderer @KostasAAA @Nicolas_Lopez_ Apparently uniformity analysis is hard.
Apr 20, 2024
When using arrays of resources/bindless, it's worth paying attention to index divergence.
Apr 19, 2024
This is a few years old, but holy crap, I can't believe a peer-reviewed journal actually published a paper claiming to have found an 8D associative division algebra.
Apr 15, 2024
There's a neat property about the quadratic formula that most people don't seem to be aware of.
Apr 10, 2024
Some people seem to think that all objects in exterior algebra or geometric algebra are represented in code by big 16-component entities.
Apr 09, 2024
After looking at the current state of Vulkan (the API, driver support, stability, etc.), I have concluded that I'm better off sticking with OpenGL for the time being when it comes to making a PC game.
Apr 06, 2024
@MartinJIFuller @SebAaltonen On https://mastodon.gamedev.place/@NOTimothyLottes I'm collecting posts with AMD GPU disassembly dumps for a book on everything the shader compiler 'isn't doing'.
Apr 04, 2024
This is how slow code feels like:
Mar 13, 2024
One of the things I probably loathe most about the mentality of OOP that got pushed on the industry is that you need a different file for every object.
Mar 12, 2024
Lately I see games where basically "those SSR reflections could've been planar reflections".
Jan 23, 2024
C macro approach to using optional / default / named function params, using struct designated initializers.
Jan 04, 2024
Debug for majority-GPU-side game dev? Run-time recompile and hex viewer.
Jan 01, 2024
Hello you fine Internet folks,
Dec 31, 2023
You are responsible for all code you ship to run on user machines, whether you wrote it or not.
Dec 30, 2023
Temporally amortized translucency | multi-bounce GI: shade in VT object space with replacement, roughly order by most distant (in reflected bounce or transparent layer) 1st to improve chance that dependent layers dont alias at same time, where aliased just amortizes across frames
Dec 29, 2023
End of 2023 Scaling: Parallel Gfx and Memory <thread>
Dec 29, 2023
Text files, while limiting and underpowered, feel like solid ground.
Dec 26, 2023
No luck getting D3DKMTGetScanLine() to work thus far.
Dec 25, 2023
Virtualized-xMas <thread>
Dec 24, 2023
The sometimes extra ~2.5 seconds on Vulkan initialization on my win10 AMD laptop is in vkCreateInstance().
Dec 24, 2023
Two great graphs from https://chipsandcheese.com/2023/12/23/nintendo-switchs-igpu-maxwell-nerfed-edition/ - Why I always manually vectorize 16-bit code, and also why you always need to manually check disassembly.
Dec 24, 2023
I'm going to retract my support for this - I just profiled a scenario where I generate geometry on the CPU every frame, upload it via a copy queue, then have the gfx queue do clears + some work before waiting for same-frame copy.
Dec 23, 2023
what does local first mean?
Dec 23, 2023
even among performance minded folks, there's a persistent myth that malloc is "pretty fast" when in fact it's so performance hostile that big game productions ban it at link time, to eliminate the damage it causes
Dec 21, 2023
Code shy brain says it's strange to be reading your source in a public git during beta period before anything launches using it, but this is the new way apparently.
Dec 20, 2023
Another bad habit, I don't include.
Dec 20, 2023
Before moving all GPU-side, I had source recompile while running.
Dec 20, 2023
Curious if you can MapViewOfFile() and then use VkImportMemoryHostPointerInfoEXT to map that R+W on the GPU.
Dec 20, 2023
I share the same unconventional # define type conventions in C and GLSL, decoder:
Dec 20, 2023
Ideally a GPU profiling graph would provide at least
Dec 20, 2023
Stable radix sorting in the GPU (8 bits per radix).
Dec 19, 2023
Working towards a public-domain release of a cleaned version of my Win32 Vulkan NV+AMD compute graphics platform.
Dec 19, 2023
Always always always use an async copy queue
Dec 17, 2023
Some irony: some say the CPU is needed for 'game code' ...
Dec 16, 2023
Inspecting my old VK engines.
Dec 15, 2023
<long thread>
Nov 20, 2023
What do people mean when they say this? C doesn’t “have” a real string abstraction? C is a programming language which has tools for building APIs of many kinds, including for strings and many other things.
Nov 18, 2023
I've had a few comments in posts which were really thoughtful questions and ideas.
Nov 16, 2023
Unpopular opinion,
Nov 13, 2023
my god they're maybe finally adding reflection to C++26
Nov 03, 2023
@Madisonkanna As someone who works full-time in C, I will say that a lot of the traditional educational material around learning C is not very good, because it was made in such a different hardware landscape.
Oct 09, 2023
The Windows shell, which you'd think is a core part of the OS, runs like a hackjob by amateurs with very little understanding of latency, concurrency, and reliability.
Oct 09, 2023
Reasons I use C:
Oct 05, 2023
Happy to share our new Paper: "SimLOD: Simultaneous LOD Generation and Rendering"
Sep 30, 2023
People often do not appreciate how a more complicated language necessitates more complicated tools.
Sep 29, 2023
I remain unconvinced that mixed reality applications are any kind of an engine for increasing headset sales.
Sep 20, 2023
TIL that this is correct syntax and that `finally` runs after the return of the function
Sep 11, 2023
There are thousands of articles introducing the details of floating-point numbers, this one is mine.
Sep 03, 2023
Somebody asked why you can't return arrays (dynamic sized data) in C.
Aug 28, 2023
Being able to edit many things at once is a sorely missing feature in most UIs.
Aug 23, 2023
"nobody cared about graphics."
Aug 18, 2023
SPC: CRT shader on the Deck.
Aug 18, 2023
SPC: Last CRT shader was broken.
Aug 15, 2023
C and the toolchain need to be simplified & stripped down, not tidied up.
Aug 14, 2023
Programming practices that increase total code volume lead to more bugs and less performance.
Aug 07, 2023
CRT emulation on LCDs can be hard.
Aug 06, 2023
1st SPC project: to be based on vintage 640x480 render (VGA style), +fallback to 640x240 for 15 KHz arcade CRTs (PGM-esk), and CRT shader scaling on Deck and OLED/LCD.
Aug 06, 2023
SPC: RDNA2 ASSEMBLER [thread] ...
Aug 03, 2023
SPC: Left off with KEY and GAMEPAD input GPU-accessable.
Aug 03, 2023
SPC: Using 8 deep swap all aliasing same BO (image) fixes Game Mode crash with external display.
Aug 03, 2023
Mike Day’s paper got me thinking about abusing floating point more so I had a use and made this little gem today… (compare to inv_lerp)
Aug 01, 2023
I am (un)happy to say that it was easier to find a triangle using assembly language than with a modern graphics API.
Jul 31, 2023
By “encouragement” I think he means “10 years of constant badgering”.
Jul 20, 2023
Cache hit rate - PS runs in hardware order (probably Morton Z-Order), CS runs in linear order.
Jul 03, 2023
Decades of programming tooling and academic curriculum were built in an entirely different hardware landscape.
Jul 01, 2023
It’s very easy to tell when I named something.
Jun 30, 2023
"Nothing Oriented Programming" (NOP).
Jun 26, 2023
Since @2DArray is working on a pico8-to-burst (lua-to-HPC#), I borrowed his parser so I could join the fun.
Jun 20, 2023
How about a mega thread on the mechanics of CPU/GPU communication.
May 03, 2023
Found some of my old blogs: thread looking back an image at a time.
Apr 28, 2023
https://gpuopen.com/learn/rgp-1-15-enhanced-isa-view/ Nice Disasm View :) - However op latency isn't useful.
Apr 25, 2023
Nerds are crazy https://git.sr.ht/~vdupras/duskos
Feb 20, 2023
True -- deep learning folks even redefined "normalization" (of vectors) to mean "standardization", instead of the actual definition of "make it unit-norm"...
Feb 18, 2023
I've been doing my weekly Science News for about 4 months now.
Feb 11, 2023
“Row/column major” should have been termed “row/column sequential” — “major” to me implies the larger step, not the smaller.
Jan 06, 2023
Thread: A simple explanation why AMDs 144MB 3D cache makes games run significantly faster.
Dec 29, 2022
@AbnerCoimbre @sssmcgrath Ah good, important clarification :) Frankly I wouldn’t care for the project if it wasn’t held up as an important project in the Handmade sphere via avenues like HMS, so I think it’s relevant to distance myself from what I’d call bad faith business practice.
Dec 17, 2022
RDNA3 ISA Guide Comments
Dec 15, 2022
AMD's windows drivers are often unfortunately broken for CRT users! Even after clicking legal blurb 'allow custom resolutions', when creating a modeline which works on CRT (works with an NVIDIA GPU too), AMD's driver fails with this.
Dec 13, 2022
@mintyModulo It’s an incredibly useful skill.
Dec 11, 2022
Objects in conformal GA can have a real or imaginary radius.
Nov 29, 2022
"The road to 16-bit floats GPU is paved with our blood"
Nov 22, 2022
I've long time talked about killing the graphics API.
Nov 21, 2022
@AllenWebster4th IMO the real reason to avoid `malloc` nowadays (for any device with virtual addressing) is to avoid the internal lock contention.
Nov 21, 2022
@AllenWebster4th @MemoryArenaMain To clarify, I don’t write in first person plural for a reason—I don’t believe in “we”, and I don’t care to enforce my preferences on others.
Nov 13, 2022
My prefered method of managing application data was the 'self-modifying-binary'
Nov 13, 2022
This is a decent commentary on the whole Meta/Oculus mess: https://www.youtube.com/watch?v=iV2RQ5yYAmI
Nov 09, 2022
@olson_dan If only PC vendors with open ISAs.
Nov 08, 2022
Example of "Bind-Everything-Once" Layout Aliasing in Vulkan.
Nov 05, 2022
GPU Programming Tip Line Thread /
Nov 04, 2022
@rianflo Vulkan: ~1500 lines of overhead (including header src, as I don't include) for complete hotrod bind-everything-only-once compute-only gfx engine.
Oct 11, 2022
While I'd love to say some cool future-of-computing ideas, let's start with the bare minimum:
Oct 03, 2022
Simplifying formats and protocols—particularly making them easy to implement from scratch—prohibits true monopolization.
Sep 21, 2022
“We don’t know what programming is.
Sep 09, 2022
@hasen_judy @convexcollider @croloris @sc13ts @AbnerCoimbre @AllenWebster4th @handmade_seattl Yes, we need simpler tools all the way down the stack, and that disqualifies C++.
Aug 30, 2022
This thread makes some good points about the UI design here, but the glaringly-obvious issue has little to do visual appeal, readability, alignment, or mismatched corners.
Aug 21, 2022
I have no idea how the idea that *data structures* are coupled to *layout of data structures in memory * got so pervasive with programmers.
Aug 19, 2022
I think you guys should stop learning languages and start learning programming already.
Aug 08, 2022
@umpereiraai @bigrando420 Code should be organized by practical necessity, not by top-down design before any code has been written.
Aug 03, 2022
Tip of the day: If you don't have the passion to build and the resources to maintain high quality tools for artists, level designers and game developers, don't build your own engine.
Apr 13, 2022
Software should be composable.
Jan 27, 2022
Address space randomization is a security feature that provides some benefits, but it is interesting to consider that all software ever written could be statically linked and coexist in a 64 bit address space.
Jan 17, 2022
One of the biggest misunderstandings I see about quaternions is their dimensionality.
Jan 17, 2022
@joonturbo Rotations in 3D space have 3 degrees of freedom.
Jan 04, 2022
Re-doing things, that didn't come out well enough the first time, is one of the most effective methods of making good things.
Jan 03, 2022
When Unity and Unreal package textures and generate mip maps, are the mip maps generated with the same 2x2 box filter that glGenerateMipmaps uses, or a high quality multi-tap resampling filter? Even a very costly resample should be cheaper than good GPU texture compression.
Dec 26, 2021
It sure would be nice if we had a 100% common language syntax and function library instead of a bunch of random differences among GLSL, HLSL, and PSSL.
Dec 21, 2021
Shading language standardization for the web is completely f'ed.
Dec 15, 2021
@cmuratori I was thinking today about how almost all new crypto efforts are like "level 2" and DAOs and stuff, and I realized this is like why software has exploded into higher levels of abstraction -- to do something at "level 1" you have to actually know what's going on
Dec 05, 2021
@FlohOfWoe @xgalaxy @CasualEffects @soylentgraham @MGDev91 The original glTF 2.0 spec did have the 4-influence limit.
Nov 12, 2021
Would love to chat with anyone that has built a property grid with dearImgui with undo/redo support.
Nov 08, 2021
The software side of dealing with custom hardware is unpleasant, and a drain on building it and exploiting it when completed.
Oct 03, 2021
So I was seeing inexplicable 100-200 ms frame times in my game, and I couldn't figure out what was going on.
Oct 01, 2021
I have an honest question: how do *you* deal with all the broken software if it seriously impedes your daily work?
Sep 20, 2021
This weekend I gave a speech saying that software technology has mostly stopped advancing, and stalled sometime in the mid-1990s.
Sep 11, 2021
@ladyaeva They're 2D vectors with a major extra feature: you can multiply two vectors to get a third, and this multiplication is just like multiplication in the reals: it's commutative (a*b=b*a), invertible unless you're multiplying by 0, and also has a nice geometric interpretation.
Jul 13, 2021
@nice_byte This GitHub issue is detestable and hard to read.
Jul 08, 2021
WebUSB sure sounds like scope-creep.
Jul 03, 2021
The "excuse factory" Casey discusses in this video is something I see all the time, not just about performance, but also functionality, or how many people it takes to program something.
Jun 21, 2021
I think I'm a good programmer, then I go do something that is way more complicated and messy than what is required, and I don't figure that out until 4 years later, when it's obvious.
May 29, 2021
RW Hamming dropping the pills.
May 13, 2021
@nex3 https://handmade.network/manifesto
May 03, 2021
Back in 1993, I was taking a number theory class, and there was a semester-long factorization contest that we could participate in.
Nov 12, 2020
Most people missed this presentation by @LottesTimothy in GDC 2019:
Oct 31, 2020
This is how you generate a cube in vertex shader.
Oct 31, 2020
@ciano1000 @SasLuca @Jonathan_Blow @handmade_seattl I don't think I'd classify our goals one way or another.
Oct 25, 2020
Implemented a simple linear estimator for distance field value.
Oct 12, 2020
@DionSystems @rfleury What editor is this...
May 22, 2020
@yunruse @cullend @GolerGkA @star_door_ @kevinwatters Haha, very true! In my mind, the preferable UI/UX model for an AST editor is an open question right now, but what I will say is that even the simplest possible controls I thought of turned out to be preferable over text.
May 15, 2020
@thnewlands @kevinwatters It is roughly 2 months in.
May 15, 2020
@cullend @GolerGkA @star_door_ @kevinwatters To clarify, the mouse controls are just a small editor feature, not really a demonstration of the most important parts of the code editing.
Apr 06, 2020
It is unfortunate that programmers are taught to ignore memory in favor of using RAII/GC/ARC/etc., despite that using memory constraints to one's advantage can dramatically improve speed, improve reliability, improve debuggability and reduce code complexity.
Mar 04, 2020
New programming blog post about the complexity and performance trade-offs of maintaining entity memory contiguity in games.
Feb 17, 2020
How many people were taught that the formulas for the dot product (x₁x₂ + y₁y₂ + z₁z₂) and cross product (y₁z₂ − y₂z₁, z₁x₂ − z₂x₁, x₁y₂ − x₂y₁) are simply definitions and cannot be derived?
Jan 14, 2020
@EricLengyel trying to use the structure buffer described in FGED2 and having big troubles with the eye space depth storage..
Dec 29, 2019
@FlohOfWoe @martin_cohen Sequential languages are still the bee's knees.
Dec 26, 2019
2019-12-26-thread
Dec 24, 2019
1/8 Every operation in Grassmann/geometric algebra has a dual, which is just as important.
Dec 23, 2019
The new 4coder update, beta 4.1.0, has been awesome! I've already had a ton of fun adding custom editor features that both help out quite a bit when programming, or are just fun.
Dec 21, 2019
@richgel999 @Atrix256 @guycalledfrank @PottuVoi The term “G-buffer” was already in use by the mid 90s.
Dec 05, 2019
I have written a draft proposal for a "disjoint" qualifier in C++.
Dec 05, 2019
@bdiamand I'm not convinced that casting to force disjoint should be allowed, but if it had to be there, something similar to const_cast<>() would do it.
Aug 29, 2019
Why do we spend so much effort to encode programming language semantics into a textual form just so a parser can go through the error-prone process of ripping that same exact information back out? Why not work directly on a program's abstract-syntax tree? (1/8)
Jun 27, 2019
When writing graphics applications and demos, I've found loading in complex geometry without introducing any ridiculous dependencies (I'm looking at you, Assimp) is a pain and normally results in me writing some crappy special-case parser for OBJ so that I can throw some...
May 05, 2019
This is how you write a good x64 spinlock: Use two stage construct.
Apr 15, 2019
I wrote a custom data description parser with introspection features which can be directly used with C for introspection and code generation.
Apr 15, 2019
A Modest Proposal to Simplify and Shorten English Text By Cancelling Opposite-Sign Prefixes:
Jan 17, 2019
There is an odd tendency of modern society to make the assumption that if something is modern, it must be superior to the older equivalent, which is assumed to be incorrect or antiquated.
Jan 11, 2019
Problems I don't have when writing C and C++ code:
Jan 07, 2019
@Atrix256 @paniq @arabek @kebby I have formal mathematical training, and I still think the arcane writings of asshole mathematicians is the #1 reason why a lot of important math isn't widely understood.
Jan 01, 2019
Now that people have already said highly controversial stuff like ”debugger is useless for C++ development”, I think I can share my own controversial thoughts about unit testing, DRY, copy-paste coding and function length, etc...
Dec 29, 2018
I wish I was as productive blogger as @aras_p.
Dec 10, 2018
A recent lesson I've learned about #programming the hard way: Be *very* skeptical of mental models.
Nov 12, 2018
In modern day #software engineering culture, there is some sort of assumed equivalence between how source code appears and how well the program is written.
Oct 25, 2018
I think it's time to start a new gamedev conference that:
Aug 14, 2018
2018-08-14-thread
Jul 24, 2018
The final figure got even crazier.
Jul 04, 2018
I think it's safe to say that nowadays you should always be using an infinite projection matrix that maps camera-space depth [n,∞] to the reversed range [1,0] after perspective division.
Jun 28, 2018
User interface design rule #163:
Jun 23, 2018
Remember who you're talking to when evaluating a product.
Apr 25, 2018
Mike Acton approximator:
Feb 18, 2018
#unity tip update.
Feb 02, 2018
No matter how expert you are, if another qualified person presents you with a new idea you haven't previously contemplated, take some time to objectively understand and respect its merits before becoming intransigently dismissive.
Jan 14, 2018
Sorry y’all I was young and this coordinate system stuff was confusing https://x.com/dj_link/status/952185276218200065
Dec 29, 2017
I know a lot of people are against software patents, but I believe they're appropriate when you've developed something of significant complexity that would be difficult for someone else to make, and the success of your business depends on you being able to sell products using it.
Nov 17, 2017
One advantage to not including any OS headers or standard C/C++ headers is that I get to enjoy blazing fast build times on my old-ish quad core.
Nov 13, 2017
I wrote down some thoughts about how a "transient" qualifier may have been a much better way to achieve move semantics in C++ compared to the awfulness of rvalue references.
Nov 13, 2017
@kingsamj @EricLengyel Documented ownership is one of the main advantages of unique_ptr over raw ptr.
Oct 25, 2017
dear imgui: super early docking experiment
Aug 17, 2017
The consensus so far is that world space, object space, camera space, etc., aren't taught correctly anywhere, and everyone's just guessing.
May 26, 2017
Needs repeating: You can always perform a signed integer range test with a single comparison.
Apr 13, 2017
The more I talk to people about other engine's editors, the more I realize everyone just accepts crashing all the time as normal.
Dec 15, 2016
@JesseRMeyer @casseveritt That would be taking the antiwedge product of two 3D antivectors to produce a homogeneous 2D point.
Dec 09, 2016
@EricLengyel It's just different use cases.
Oct 02, 2016
I love wasting time over driver bugs that clearly indicate that the functionality I'm trying to use was never tested even one time.
Feb 01, 2015
TextEdit just took 20 sec to open a 1 kB plain text file.
Dec 20, 2014
Remember that integer range checks can always be done with only one comparison: (unsigned) (x - min) <= (unsigned) (max - min)
Apr 05, 2014
I'd like a code editor that can recognize some kind of markup in comments and display it as formatted text with equations and diagrams.
Nov 14, 2013
Getting really sick of intellisense often not knowing the difference between a function declaration and its definition.
Sep 10, 2012
I've come to the conclusion that there's no respectable input device API included with any desktop OS.
Sep 19, 2011
@max_mcguire (1 << i) & 3 causes a microcode stall on Cell.
Jun 04, 2011
Cooked my own minimal Win32/DX header file.
Oct 04, 2026
@NOTimothyLottes Funny that they say "actual fp32 compute".
Aug 30, 2026
AI Cruft:
Aug 30, 2026
Can't find a proper prior art of someone developing a "language" the tags code paths to a specific machine type (L1 only, Reg File only, Downstream branches only, Iterator allowed, etc).
Aug 28, 2026
@nicbarkeragain That's the kind of posts we want to see.
Aug 28, 2026
@nicbarkeragain It's also a good idea to add these to your mem allocs.
Aug 28, 2026
@nicbarkeragain I'm convinced you should never use observer pattern or callbacks.
Aug 27, 2026
@SebAaltonen Also weird pitch but if you managed to get your API as a replacement RenderServer in godot it would likely get broad adoption.
Aug 26, 2026
@fiigii In our case, it's also often just blocked by the memory model requirements.
Aug 26, 2026
@fiigii E-graphs seem to be one way to address this, allowing the compiler to explore different optimisation choices and then distilling the best outcome out of them.
Aug 26, 2026
@fiigii more language-tier facilities to drive it? stuff like [[likely]] and etc.
Aug 26, 2026
@fiigii Don't worry it exists, they call it PGO, we had it in Visual C++ 2005.
Aug 26, 2026
@fiigii llvm is flexible, you can have custom passess, and it has, I don't know, 2000 knobs, what you can tweak the "heuristics" with as you wish, good luck
Aug 26, 2026
@fiigii very true!
Aug 26, 2026
@fiigii > This needs to change.
Aug 26, 2026
"Why should I care about the performance of everyone else’s programs?" Because then they will be forced to do likewise.
Aug 26, 2026
@fiigii I think inline assembly should be the right answer, but compilers don’t have a really great support of it, apart from Odin right now
Aug 26, 2026
@nicbarkeragain Something that CS suffers from is not being clear in what is true in the ideal model vs the actual implementation of a “computer.” For example, in relation to EE, ideal op-amps vs the actual transistor level circuitry of an op-amp allow for different approximations to be made.
Aug 26, 2026
some distinction between allocating new memory, copying src->dst, and then freeing src.
Aug 25, 2026
@TheGingerBill I can kinda see myself starting using Odom and learning assembly with it before I ever do that with C 😂
Aug 25, 2026
@TheGingerBill neat!
Aug 25, 2026
@TheGingerBill Liked the syntax
Aug 25, 2026
@TheGingerBill Isn't it sometimes useful to use nop instructions to align relevant code in memory (like in your example after jmp)?
Aug 25, 2026
@TheGingerBill @TheGingerBill would it be possible that asm templates prevent the bug in https://youtu.be/PNWABi6Dcl8? Cc @LowLevelTweets
Aug 25, 2026
@TheGingerBill This is very much a personal preference, but all the big sites let you give the AI some specific "personality" details that apply to all convos.
Aug 25, 2026
@TheGingerBill Hear hear.
Aug 25, 2026
@TheGingerBill This is exactly where I sit with using LLMs for programming
Aug 25, 2026
@TheGingerBill Sometimes LLMs bad ideas are great at sparking good ones
Aug 25, 2026
@TheGingerBill Please look into the physics behind it instead, and then you will see that "LLMs" are unscalable by nature due to the noise-denoise aspect they introduce.
Aug 25, 2026
@TheGingerBill Broadly agree, with one caveat: giving agents code to review for mistakes/find bugs is in my opinion a good use case.
Aug 25, 2026
@TheGingerBill Sir what would u say about coding is becoming obsolete as dhh, uncle Bob etc are saying, will the ones who are technically competent have advantage over others in the future
Aug 25, 2026
@TheGingerBill You mentioned them being passive aggressive.
Aug 25, 2026
@TheGingerBill Don't use LLMs as a beginner to substitute producing real work, sacrificing the learning that comes with it.
Aug 25, 2026
@TheGingerBill I wrote a basic deep learning framework but with a generalized version of backpropagation.
Aug 25, 2026
@TheGingerBill They're pretty nice for generating bindings too, but you gotta make them triple check
Aug 25, 2026
@TheGingerBill Slippery slope, this is how all accomplished programmers start ;).
Aug 25, 2026
@TheGingerBill Training on the mean programmer's code is the most honest explanation I've seen for why agent demos always pop and then fall apart on a real codebase.
Aug 25, 2026
@TheGingerBill I use LLMs the same way, except I use them as a chatbot through opencode a and give them 0 permissions to do anything ever.
Aug 25, 2026
@TheGingerBill What if you dgaf about learning to code and just use LLMs for product development?
Aug 25, 2026
People said much the same thing about high level languages, interpreters, etc.
Aug 25, 2026
LLM "agents" are a tool tho, it just means there will be a software passing messages down to the LLMs so they can execute things automatically, there's no magic on that, but it's convenient.
Aug 25, 2026
A lot of people will give you nonsensical shit about this.
Aug 25, 2026
@TheGingerBill I even have a hard time blindly trusting generating tables and charts etc from data.
Aug 25, 2026
@TheGingerBill Although I agree with some of that, I think you should at least try to use agents for such tasks (in good faith) so that you can accurately assess whether they could be useful or not.
Aug 25, 2026
@TheGingerBill I think they can be used to make learning more effective, especially for concepts where reading a book doesn't give you the full context you need.
Aug 25, 2026
@TheGingerBill I also find LLMs great at generating comments and documentation for an existing code base.
Aug 25, 2026
@TheGingerBill That's how I was using AI until about February of this year.
Aug 25, 2026
@TheGingerBill Would you advice against reading a technical book using llms?
Aug 25, 2026
@TheGingerBill I ask the LLM to generate VERY small programs using an API I need to use.
Aug 25, 2026
@TheGingerBill mine called my parser design naive, lol
Aug 25, 2026
@TheGingerBill i use llms the exact same way.
Aug 25, 2026
@TheGingerBill When you work with LLMs are you working with them out of the web chat UI or are the apps downloaded onto your machine, or are you using third party AI tools?
Aug 25, 2026
@TheGingerBill @Wassimulator I mostly use them to narrow down/distill documentation and to elucidate errors that are very poorly explained.
Aug 25, 2026
@TheGingerBill You will not deny "beginners" this: they will be all over it esp.
Aug 25, 2026
@TheGingerBill mmm, they can and should be used as a search tool on your existing code base or when using an existing library for the curious.
Aug 25, 2026
@TheGingerBill Missing from this list - your recent blog post seemed, at best, very heavily LLM assisted.
Aug 25, 2026
@nicbarkeragain I think it's actually *easier* to reason about your code when you pre-allocate and just "fill" buffers that never move.
Aug 25, 2026
@nicbarkeragain I still find myself sketching data flow diagrams when designing data processing oriented systems, but I agree that it often doesn't translate well to concrete interfaces in code, it misses any problems you might have with push/pull impedance mismatches, who "holds" memory etc.
Aug 22, 2026
@AgileJebrim Why?
Aug 22, 2026
@AgileJebrim ptx, my ass: https://redplait.blogspot.com/2026/08/parser-of-ptx-instructions.html
Aug 22, 2026
@AgileJebrim Are people seriously starting from ptx 😭 I thought you went there after you got a good grip on cuda
Aug 22, 2026
How to archive a thread
Aug 13, 2026
@SebAaltonen I just wanted to comment on this since it popped up on my YouTube feed, and I've watched the whole talk.
Aug 12, 2026
@SebAaltonen Excellent info.
Aug 11, 2026
@NOTimothyLottes https://iscaconf.org/isca2018/docs/HennessyPattersonTuringLectureISCA4June2018.pdf
Aug 10, 2026
@NOTimothyLottes I don't agree with point 2.
Aug 10, 2026
@NOTimothyLottes Is this Nvidia’s MSRP?
Aug 10, 2026
@NOTimothyLottes i mean this is cherry picking an almost refresh generation.
Aug 10, 2026
@NOTimothyLottes Would have looked even worse for new GPUs if they selected GTX 1080 instead of 980.
Aug 09, 2026
@ID_AA_Carmack They want absolute control on everything.
Aug 09, 2026
@SebAaltonen the honest answer is that most people in the industry don't actually care about reducing api complexity, they care about making their own code work faster and get out a demo before their investors lose patience again
Aug 09, 2026
@SebAaltonen hardly can hear anything.
Aug 09, 2026
@rfleury makes me wonder why we don't have a tool (do we?) to visualize inlining like that (without actually doing it).
Aug 08, 2026
@SebAaltonen Very nice.
Aug 08, 2026
@SebAaltonen What do you think are the chances—any chances at all—that, say, the Vulkan 2.0 API would look the way you're suggesting?
Aug 08, 2026
@SebAaltonen What assumption from existing APIs proved hardest to drop in the clean slate design?
Aug 08, 2026
@SebAaltonen Nice! I liked the history lesson at the beginning.
Aug 08, 2026
@SebAaltonen So...
Aug 08, 2026
@SebAaltonen ok but the 2x extension points toward the part nobody talks about: tooling.
Aug 08, 2026
@nicbarkeragain This just saved me from hours of debugging.
Aug 08, 2026
@rfleury John Carmack wrote about this: http://number-none.com/blow/john_carmack_on_inlined_code.html
Aug 08, 2026
@rfleury Some people will say that a good abstraction lets you understand the loops underneath, and some will say that a good abstraction means you don’t have to understand the loops underneath.
Aug 08, 2026
@rfleury The fundamental property of abstraction is to avoid repetition.
Aug 07, 2026
@rfleury If you got a concrete example of this, it might be worth making a video out of that, just saying! 😋
Aug 07, 2026
@rfleury Overall I’ve noticed that inlining is just amazing at surfacing issues with what the actual „abstraction” is - kind of that if I carve the function too early I’ll obfuscate the fact that maybe the actual function (behaviour) bends to that function rather than the other way around
Aug 07, 2026
@rfleury Assuming -O3, if you compare the assembly output before and after the exercise, do you see any meaningful difference?
Aug 07, 2026
@rfleury Do you have a favorite example from raddbg to look at?
Aug 07, 2026
@rfleury This seems like such good advice and hard to visualize without having practiced a couple of times.
Aug 07, 2026
@rfleury This is the first thing I do in every big refactor
Aug 07, 2026
@rfleury btw this sounds like a nice feature for a debugger
Aug 07, 2026
@rfleury couldn't resist
Aug 07, 2026
@rfleury I did this process to linearise the mutually recursive eval loop of a language - also found a very nice opportunistic TCO due to it.
Aug 06, 2026
At least with ultrascale+ if you can afford to run at just 27-bits instead of 32, it’s easier to just always MAD instead of optionally ADD
Aug 06, 2026
@VictorTaelin I think the ability to make a computer program progressively smaller (yet still output the same data) is close to the definition of intelligence, if not the definition itself
Aug 06, 2026
Rust's ownership + RAII makes such patterns really easy and nice to encode statically, no debug strings needed if the compiler guarantees you can't open another object at the same level if the previous one wasn't closed.
Aug 05, 2026
@Triang3l That clause based arch was interesting in many ways, mem clause articulates the boundary for write combining.
Aug 05, 2026
@nicbarkeragain Thanks a lot for the example
Aug 05, 2026
@nicbarkeragain 1.
Aug 05, 2026
@nicbarkeragain Ah, matching strings, just like xml 🙃
Aug 05, 2026
@nicbarkeragain DeferLoop is super useful for this
Aug 05, 2026
@nicbarkeragain this particular case though is easily solved with `defer` or even `closures`
Aug 05, 2026
I love everything about this.
Aug 05, 2026
@nicbarkeragain That's a great tip.
Aug 05, 2026
@nicbarkeragain Or you could use C++ with RAII and not have to tie yourself in knots
Aug 05, 2026
@nicbarkeragain tangently, this example illustates pretty good why I like syntax with `end` keyword and optional name of closee better than just `{ ...
Aug 04, 2026
@nicbarkeragain I accidentally discovered this myself.
Aug 04, 2026
@nicbarkeragain function "draw string, for debug, in my game's 3d graphical space"
Aug 04, 2026
@nicbarkeragain WebGPU has this and it’s a life saver for debugging
Aug 03, 2026
@nicbarkeragain I do and access it via 9p.
Aug 03, 2026
@nicbarkeragain brb adding this to my codebase
Aug 03, 2026
@nicbarkeragain You can also implicitly pass the source code location from creation so there's no need for explicit labeling a lot of the time.
Aug 03, 2026
@nicbarkeragain This is the way!
Aug 03, 2026
@nicbarkeragain I don't suppose you could demonstrate this with a small code snippet/example that shows HOW one can label an allocation?
Aug 03, 2026
@nicbarkeragain Isn't this just a Python-style docstring with extra steps?
Aug 03, 2026
@nicbarkeragain https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-exallocatepool2 🤘
Aug 03, 2026
@nicbarkeragain Can you post an example of how you would implement it?
Aug 03, 2026
@nicbarkeragain IIRC sokol_gfx does this.
Aug 03, 2026
@nicbarkeragain When I've seen this they usually require unique names and then you end up recapitulating the entire creation path in the string to make it unique but still readable, which I kinda hate.
Aug 03, 2026
@nicbarkeragain That's actually a smart idea.
Aug 03, 2026
@nicbarkeragain ya tagging allocations, and frames to actual assets in-game is absolutely necessary for development once your game stops being a small thing
Aug 02, 2026
@NOTimothyLottes https://n64brew.dev/wiki/Parallel_Interface
Aug 02, 2026
@NOTimothyLottes Wasn't that pretty much what the Saturn did?
Jul 31, 2026
Ratchet and Clank is the only remaining callback to the good days of Crash Bandicoot and that kind of whimsy game design direction.
Jul 29, 2026
@ID_AA_Carmack Open source thrives when the tools are visible.
Jul 29, 2026
@NOTimothyLottes Can you run your own code (without hacking it) though ?
Jul 26, 2026
@ID_AA_Carmack The walled-garden problem isn't just SDKs — it's the worlds themselves.
Jul 26, 2026
@ID_AA_Carmack ...
Jul 24, 2026
@ID_AA_Carmack You really would like to think so.
Jul 24, 2026
@ID_AA_Carmack Completely sensible pre-release but afterwards there’s way too many people with access to the info to assume the NDA accomplishes much against the actual threats but does make every legitimate user jump through hoops just to read the docs and crushes the community
Jul 23, 2026
@ID_AA_Carmack Tangentially related, but I'm planning to release my games for old consoles like the PS1, and it's upsetting that I'm in a grey area if I wanna sell physical copies.
Jul 23, 2026
@ID_AA_Carmack Trade secrets are the way to go to keep a distinct product others aren’t just trivially copying.
Jul 23, 2026
@ID_AA_Carmack I am wondering why that is.
Jul 23, 2026
@ID_AA_Carmack In fact it makes me not want to bother supporting their consoles at all.
Jul 23, 2026
@ID_AA_Carmack Not only NDA'd but they they've even tried to sic law enforcement on second hand owners of the kits as @GamersNexus reported.
Jul 23, 2026
@ID_AA_Carmack As most information hiding measures that end up hurting the public, they're the cause of someone doing the worst possible thing with information that's shared early in good will.
Jul 23, 2026
Not always possible.
Jul 23, 2026
@ID_AA_Carmack More than that, they should also release source code for ancient games/unused engines.
Jul 23, 2026
@ID_AA_Carmack this crossed my mind earlier this week for some reason, like i wondered if somehow a middleware could use a homebrew version of an SDK to still be compatible and open source??
Jul 23, 2026
@ID_AA_Carmack I've been building homebrew apps for gaming consoles for years, using open-source SDKs.
Jul 23, 2026
@ID_AA_Carmack Talking about open source I wonder what your take is on California Bill AB 2047 which is an attack on open source and 3D printers.
Jul 23, 2026
@ID_AA_Carmack public docs help, but certification test suites leak platform assumptions that vendors still guard
Jul 23, 2026
@ID_AA_Carmack Didn't Microsoft release their GDK to public? Only the GDK with Xbox Extensions and publishing need NDA, but you don't need them to enable dev mode on retail Xbox console.
Jul 23, 2026
@ID_AA_Carmack <.< well there are the SDKs that were leaked for the olders consoles.
Jul 23, 2026
@ID_AA_Carmack Not sure about #Sony with its brain dead current management, but #xbox now head pretty smart CEO , you really should personally approach @asha_shar and explain this to her and chances are she may remove all the NDA restrictions to make #Xbox more open for devs and games!
Jul 23, 2026
@ID_AA_Carmack Not only should SDKs be open — console game dev shouldn’t be locked behind dev kits.
Jul 22, 2026
@ID_AA_Carmack Yes just wanted to develop a little quiz game for my kids on the switch and NOPE
Jul 22, 2026
@ID_AA_Carmack don't forget how Nintendo patents every video game feature under the sun, after that feature appears in other works already, and then sues you if you implement that feature into your game
Jul 22, 2026
@ID_AA_Carmack and Sony/Nintendo shouldn't ? you so called pillars of the industry devs should do more..,rather than complain here looking for likes and what not,trying to bash microsft cause its fashonable,go talk to your colleagues and demand change, like it or not you are part of the problm.
Jul 22, 2026
@ID_AA_Carmack Third-party libraries in general are a big issue in open-sourcing any sort of code.
Jul 22, 2026
@ID_AA_Carmack the xbox 360 sdk is still under nda and that hardware is old enough to vote.
Jul 22, 2026
@ID_AA_Carmack What do you mean? We made a GCC compatible Xbox toolchain.
Jul 22, 2026
@ID_AA_Carmack Microsoft has partner NDAs to consider as well.
Jul 22, 2026
@ID_AA_Carmack yeah a year after release is probably ample time to release the docs
Jul 22, 2026
@ID_AA_Carmack When the XboxONE was coming out they specifially pushed that indies would have to have a publisher vouch for them.
Jul 22, 2026
@ID_AA_Carmack With all due respect, John, I find it hard to believe that you'd expect Microsoft to know better.
Jul 22, 2026
@ID_AA_Carmack Post-launch transparency feels like the obvious compromise.
Jul 22, 2026
@ID_AA_Carmack Don't they NEED to control licensing for making games on their consoles to pay for the subsidized cost of the hardware?
Jul 22, 2026
@ID_AA_Carmack small teams just skip consoles entirely because of this
Jul 22, 2026
The post-launch secrecy usually isnt about the SDK itself, its anti-cheat hooks and DRM implementation details that stay sensitive for the console's entire lifecycle.
Jul 22, 2026
@ID_AA_Carmack Of all the projects Satya Nadella open sourced, one would think Xbox APIs should be open
Jul 22, 2026
@ID_AA_Carmack Post-launch SDK secrecy turns solved engineering problems into duplicated effort, exactly where open source should accelerate everyone.
Jul 22, 2026
@ID_AA_Carmack If sharing basic tooling means calling a lawyer first, small teams just won't.
Jul 22, 2026
@ID_AA_Carmack They don't make you sign an NDA to view the Direct3D documentation or download Visual Studio Community Edition.
Jul 22, 2026
@ID_AA_Carmack open sourcing your own console sdk is like using seppukku as your war strategy
Jul 22, 2026
There's a pernicious idea in companies that their documentation is somehow valuable on it's own and it behooves them to prevent competitors from seeing it.
Jul 22, 2026
@ID_AA_Carmack i dont understand why there needs to be so much custom sdk? Why not say we do vulkan have fun.
Jul 22, 2026
@ID_AA_Carmack If you want to develop software or hardware for like a game engine its kinda...
Jul 22, 2026
@ID_AA_Carmack The whole idea for a console is for everything to be as closed and integrated as possible.
Jul 22, 2026
@ID_AA_Carmack In the AI age to come, I bet we'll have some open source console competitors.
Jul 22, 2026
@ID_AA_Carmack They have the “hobby” SDK available and also have a free dev mode unlock for retail consoles.
Jul 22, 2026
@ID_AA_Carmack it forces open source engines into this endless dance of clean-room abstraction layers just to target hardware that's been out for a decade.
Jul 18, 2026
@NOTimothyLottes sorry for the tangent - what is this font and where can I get it?
Jul 18, 2026
@NOTimothyLottes Even smaller code size possible with custom compression scheme, where you design bytecode not for immediate execution but to be decompressed on load.
Jul 18, 2026
@VictorTaelin I've noticed this in AI workflows too.
Jul 18, 2026
@VictorTaelin A useful elaboration: whether something should be deleted goes with the square root of its age.
Jul 18, 2026
@VictorTaelin Yes but this is missing *what* you compress.
Jul 18, 2026
@VictorTaelin By the way, we probably evolved towards this due to info transmission/comprehension cost in a group.
Jul 18, 2026
@VictorTaelin nobody knows how to do that
Jul 17, 2026
@VictorTaelin This is an interesting approach to boosting intelligence.
Jul 17, 2026
@VictorTaelin Completely agree, erasure needs to be a mechanism, not a hope.
Jul 17, 2026
@VictorTaelin wolfram knows it.
Jul 17, 2026
@VictorTaelin This has been my whole purpose with LLMs outside of actual task work for at least one year
Jul 17, 2026
@VictorTaelin This is true in neural networks.
Jul 17, 2026
@VictorTaelin Ya compress the AST size not the character count..
Jul 17, 2026
@VictorTaelin I too have considered compaction to be the next generation of model design
Jul 17, 2026
KV Compaction gonna be a great change
Jul 17, 2026
I have sorted that only halfway in code.
Jul 17, 2026
@VictorTaelin Best post I’ve seen on here in a while.
Jul 17, 2026
@VictorTaelin "Compression is the intelligence"
Jul 17, 2026
@VictorTaelin mLSTM?
Jul 17, 2026
@VictorTaelin 100x worse (Be Generic)
Jul 17, 2026
@VictorTaelin https://x.com/ianisarobot/status/2046793491687113012?s=46&t=wgK6ewuTJ2vWXe73_JA3MA
Jul 17, 2026
@VictorTaelin > An aha-moment happens when your brain is capable of expressing new information in terms of information you already posses stored.
Jul 17, 2026
I love how well articulated this post is!
Jul 17, 2026
@VictorTaelin Reminds me of this paper:
Jul 17, 2026
@VictorTaelin a related issue that bothers me is that the changes ai makes to your project are always continuous.
Jul 17, 2026
@VictorTaelin Have you ever look at justin sung work on learning?
Jul 17, 2026
@VictorTaelin > Compression.
Jul 17, 2026
@VictorTaelin I think Anthropic is already doing something similar because they are compressing intelligence as much as possible for pretraining.
Jul 17, 2026
@VictorTaelin DL is not built for erasure as much as we don’t control what we forget.
Jul 17, 2026
@VictorTaelin A lot of slop comes from this effect.
Jul 17, 2026
@VictorTaelin Nobody cares about erasure until your program stops working at 2 am and the file is too big to something something that a bot would say
Jul 17, 2026
@VictorTaelin Son of Anton figured it out first
Jul 17, 2026
@VictorTaelin I'm trying to do that at http://0-bro.com
Jul 17, 2026
@VictorTaelin Saving this b4 you delete it 💔
Jul 17, 2026
Intelligence is not just the ability to reason, but the ability to spend reasoning resources wisely.
Jul 17, 2026
@VictorTaelin this looks like kv cache? or did i miss something 🤔
Jul 17, 2026
@VictorTaelin I thought about it a lot too, the bloat surely hinders progress.
Jul 17, 2026
@VictorTaelin True.
Jul 17, 2026
@VictorTaelin How do I get my real life brain to be like a LLM? Having infinite memory is a blessing and a curse
Jul 17, 2026
@VictorTaelin why big labs haven't hired you yet
Jul 17, 2026
@VictorTaelin I think they already do erasure a lot, on every token.
Jul 17, 2026
@VictorTaelin I need this idea somewhere in my calude.md
Jul 17, 2026
I've gotten rid of compaction in my loops in favor of a summary handoff to continue the given task because I've noticed that compacting is actually *worse*.
Jul 17, 2026
I’ve been spending a lot of time on reducing the state space of a program instead of just trying to remove branches, and then models are really good at it if you give them the right skills.
Jul 17, 2026
@VictorTaelin excelente post
Jul 17, 2026
@VictorTaelin did you post this after watching 3b1b video
Jul 17, 2026
@VictorTaelin I mean arguably asking for a summary or summarizing past events has erasure “built in” as you are reducing down to the decided important parts.
Jul 17, 2026
@VictorTaelin I think "code-golfing / minification / uglification" is okay, as long as the model can still recover an interpretable and human-readable version of the code.
Jul 17, 2026
@VictorTaelin One thing I noticed, is that all of these models are terrible at information extraction, as in rewriting text as a list of facts you learned from it, and pretty much any related task.
Jul 17, 2026
@VictorTaelin *taps sign* https://x.com/justinmk/status/1874626660915613984
Jul 17, 2026
@VictorTaelin The compression angle is fascinating.
Jul 17, 2026
@VictorTaelin Putting this into my fable convo to distill into a claude.md rule and a loop
Jul 17, 2026
@VictorTaelin 3B1B video running through AI Twitter like crack in the 80s
Jul 17, 2026
@VictorTaelin Not true, weight decay explicitly forces sparseification of parameters during training.
Jul 17, 2026
@VictorTaelin Agree, but also worth noting: Attention mechanism obviously learns erasure - as the query-answer mechanism figures what’s relevant and what’s not.
Jul 17, 2026
@VictorTaelin codex leaves unrelated edits everywhere.
Jul 17, 2026
@VictorTaelin Yes, absolutely.
Jul 17, 2026
@VictorTaelin i think the broader insight is that intelligence isn't just generation
Jul 17, 2026
@VictorTaelin https://goombalab.github.io/blog/2025/tradeoffs/
Jul 17, 2026
@VictorTaelin the cata- part of hylomorphism
Jul 17, 2026
@VictorTaelin imo, this is the last piece that’s missing, everything else is just scaling compute, rl, task time, etc.
Jul 17, 2026
@VictorTaelin In Rust I’ve ended up making a code garbage compactor.
Jul 17, 2026
I have a somewhat similar idea.
Jul 17, 2026
@VictorTaelin i think this is more or less where sutton is trying to go:
Jul 17, 2026
@VictorTaelin I got some very interesting results recently about erasure rates in vocabulary for codebases.
Jul 17, 2026
@VictorTaelin The Codex (or Claude Code) harness does context compaction, and they're surely training for this on two levels: the model is being trained within harnesses that are controlling their context, and the models they're using to compact context are also being RL'd to perform better.
Jul 17, 2026
@VictorTaelin 100%
Jul 17, 2026
@VictorTaelin the models are smart but they are not wise
Jul 17, 2026
@VictorTaelin Love this! I've been fighting with it for a few weeks.
Jul 17, 2026
@VictorTaelin Thoughts on Intelligence as compression? Series by 3blue1brown is very nice.
Jul 17, 2026
@VictorTaelin i think 5.6 sol is really good at deleting slop, I also found that it keeps changes and new implementation to a minimum, where 5.5 would write 1000 lines, 5.6 writes about ~500
Jul 17, 2026
@VictorTaelin This shows up outside training too.
Jul 14, 2026
@NOTimothyLottes Much clearer...
Jul 14, 2026
@NOTimothyLottes At this point could make a DSL with Perl..
Jul 11, 2026
@NOTimothyLottes Am I having a stroke? What is this font? It feels like reading a captcha.
Jul 10, 2026
@NOTimothyLottes I think this is simply available as a KMSDRM option in SDL for essentially zero development effort (if your game is built with SDL).
Jul 09, 2026
@NOTimothyLottes And PREEMPT_RT
Jul 09, 2026
@NOTimothyLottes You can also set nohz so there's no timer interrupts on the isolated cores + set up transparent huge pages (or manually use them)
Jul 08, 2026
@NOTimothyLottes That's very neat, but is it really true in practice that the max distance between symbols can't exceed 4GB? I think it would be a sane guarantee that it can't, but I assumed the worst and got scared off from the idea...
Jul 06, 2026
@ID_AA_Carmack This is the part of the AI story that gets skipped: the models get the headlines, but someone still has to make the triangle order not suck.
Jul 06, 2026
@VictorTaelin @Jonathan_Blow hopefully useful data point.
Jul 05, 2026
@NOTimothyLottes Once upon a time Wine didn’t implement a particular cryptography path and game broke when trying to verify file integrity, had to patch it out.
Jul 05, 2026
@VictorTaelin I disagree on the consistency is enough to do mathematics, you can very weird stuff to MLTT like Nat iso Nat -> Nat and still be consistent.
Jul 05, 2026
@VictorTaelin It was easy to read and I think I understood most of it.
Jul 05, 2026
@VictorTaelin Fable is educated c
Jul 05, 2026
@VictorTaelin > this is the antidote I found to AI psychosis.
Jul 05, 2026
@VictorTaelin Are languages built on Bend incapable of representing “eval” then? And/or disallowed from looping possibly-infinitely based on an external signal?
Jul 05, 2026
@VictorTaelin stupid question alert.
Jul 05, 2026
@VictorTaelin Feels like the precise, symbolic analogue of implementing LLM guard rails that aren't too strict and aren't too lax.
Jul 05, 2026
@VictorTaelin i didn't expect i'd read all of this, but i did.....can't pretend i understand it, but i'm starting to get the picture.....
Jul 05, 2026
@VictorTaelin To someone who doesn’t understand the actual content, AI psychosis and expert use of AI to drive a breakthrough look the same (modulo institutional credentials).
Jul 05, 2026
@VictorTaelin Don't try to market yourself.
Jul 05, 2026
@VictorTaelin don't you want to be able to copy lambdas though? Or how do you do a lot of the typical FP stuff if you can't pass around and copy functions as you otherwise would?
Jul 05, 2026
@VictorTaelin this post is not a rebuttal to a query about ai psychosis regardless of the merits and robust technical details behind it
Jul 05, 2026
@VictorTaelin i have an entire math proofs section in my maths repos
Jul 04, 2026
@ID_AA_Carmack Hey John, what happened to your local AI rack? Did you do something cool with it? Models are much more powerful these days.
Jul 04, 2026
Wine's IAudioClient::GetDevicePeriod() returns 53333 for minimum (which is 256 samples at 48KHz - really crappy) and 100000 for default (which is 480 samples at 48Khz - even worse), neither which work with EXCLUSIVE mode.
Jul 04, 2026
@VictorTaelin the real crime is those idiots not knowing who you are or your work.
Jul 04, 2026
@VictorTaelin What do you mean by arguments to recursion "decreasing"? ...
Jul 04, 2026
@VictorTaelin Fable simplemente hizo de placa base pitando para avisar del error, pero la solución elegante y real requería a alguien al volante.
Jul 04, 2026
You speak simply into a mixed space where most people including me are on the "application layer".
Jul 04, 2026
@VictorTaelin This is a great post! I can’t pretend that I really get the math, but it’s obvious that you understand what you’re talking about.
Jul 04, 2026
@VictorTaelin I never thought you had AI psychosis, but the fact that others thought so led to this wonderful explanation.
Jul 04, 2026
@VictorTaelin I got interested in Bend for its prosaic capabilities.
Jul 04, 2026
@VictorTaelin I enjoyed reading this post.
Jul 04, 2026
@VictorTaelin i once implemented a type checker for impredicative MLTT.
Jul 04, 2026
@VictorTaelin It's lonely sometimes eh? I'm excited about your stuff and love your posts but I don't know a lot about lambda calculus etc.
Jul 04, 2026
@VictorTaelin os caras acham que só eles são superinteligentes mas não conseguem enxergar alem da bolha que ele mesmo se coloca entre os '' inteligentes '', que tipo de inteligência é essa ? é a vida de um engenheiro médio que trabalha em um lab de IA em SF kkkkk
Jul 04, 2026
@VictorTaelin y-combinators don't have valid types, so you are safe from them in statically typed functional languages.
Jul 04, 2026
@VictorTaelin Impossibility to write *fast* interpreter looks like a hardware architecture or compiler issue, not the language expressive power problem.
Jul 04, 2026
@VictorTaelin QTT approach for this is very elegant indeed!
Jul 04, 2026
@VictorTaelin No, I prefer the previous angry rhetoric pls revert the edit
Jul 04, 2026
@VictorTaelin Sorry, im not very technical.
Jul 04, 2026
@VictorTaelin angry one's always get attention on internet
Jul 04, 2026
@VictorTaelin Don't let them get you down.
Jul 04, 2026
@VictorTaelin There's an emergent ai psychosis psychosis in which idiots can't understand what you're saying so they cry "AI psychosis." It's a good litmus test for someone's intelligence, imho.
Jul 04, 2026
@VictorTaelin I can't really comprehend what Bend2 will be useful for except helping to make bug free software.
Jul 04, 2026
@VictorTaelin Bro, you dont hafta Grug-post to be popular with the right people.
Jul 04, 2026
@VictorTaelin The more AI advances, the more we need very high level experts in very very specialzed narrow fields, to check results ! ❤️
Jul 04, 2026
@VictorTaelin I began following you when I scrolled across an image similar to that above, it is the highly technical stuff you post that I enjoy most.
Jul 04, 2026
@VictorTaelin sometimes the problem isn't explaining something that's hard for people to grasp, but rather getting people to admit when they don't get it
Jul 04, 2026
@VictorTaelin I'm a big fan of Interaction Combinators and I hope you keep going.
Jul 04, 2026
@VictorTaelin This is so cool and inspiring (not that I understand all of it; that’s part of what makes it inspiring!).
Jul 04, 2026
@VictorTaelin adorei ler esse post.
Jul 04, 2026
@VictorTaelin Do people not study lambda calculus in college or at any other point when looking into programming languages?
Jul 04, 2026
@VictorTaelin these guys have no idea what they're talking about.
Jul 04, 2026
@VictorTaelin If you have a system that provably must terminate, what "interesting" statements are you unable to express? And what can only be stated in restricted form?
Jul 04, 2026
@VictorTaelin @tsotchke is another good example this is happening to.
Jul 04, 2026
@VictorTaelin This is a very naive and ignorant question, but now that you've split Type into two sorts, is there anything that could be represented with both variants? and if so, what would happen if someone selected the wrong one for their use csse
Jul 04, 2026
@VictorTaelin One question: does bend have an unscoped lambda?
Jul 04, 2026
@VictorTaelin Taelin I've been following you since the beginning: I think the problem is you need to aggressively position yourself and your program as a painkiller.
Jul 04, 2026
@VictorTaelin This write up was really well done, thank you for taking the time to write it! Broke down the concepts well
Jul 04, 2026
@VictorTaelin > most of you can’t understand my posts
Jul 04, 2026
You’re not allowed to praise Fable, you MUST bag everything on the internet 🤣 And god forbid you do anything genuinely impressive!
Jul 04, 2026
@VictorTaelin Loved this long post version of yours.
Jul 04, 2026
@VictorTaelin I presume the issue was in duplication inside 0-contexts?
Jul 04, 2026
@VictorTaelin Do you allow for non-termination on total functions on codata?
Jul 04, 2026
@VictorTaelin I'm curious.
Jul 04, 2026
@VictorTaelin Very cool.
Jul 04, 2026
@VictorTaelin russel antinomy •_•
Jul 04, 2026
@VictorTaelin karpathy said he had AI psychosis for a while and everyone knows he's very competent
Jul 04, 2026
@VictorTaelin Wow, that's impressive! Best argument on the quality of Fable I have read by far.
Jul 04, 2026
@VictorTaelin It's not how many likes you get, it's likes from who that matter.
Jul 04, 2026
@VictorTaelin In my language I'm trying to do termination by proxy, I.e.
Jul 03, 2026
@ID_AA_Carmack FYI I'm stealing this: "having an optimization worldview means always noticing the tradeoffs."
Jul 03, 2026
@ID_AA_Carmack but they're cutting out circles inside circles, that's gonna be rough either way, better to draw the contents in a shader or have it be a different mesh ontop no?
Jul 02, 2026
@ID_AA_Carmack The problem with MWT (total edge-length minimizing triangulations) is that they are expensive to compute.
Jul 02, 2026
Triangle ordering matters more than most realize.
Jul 02, 2026
@NOTimothyLottes I was just about to say I recall pulling this off before for _reasons_
Jul 02, 2026
@NOTimothyLottes You could pretend to be an audio jack implementation? If impersonating wine doesn't work.
Jul 01, 2026
@ID_AA_Carmack underrated part of GPU optimization.
Jul 01, 2026
@ID_AA_Carmack TLDR; carmack says to convex hull your letters and hull the whole word then retopo.
Jul 01, 2026
@ID_AA_Carmack That's a fascinating edge case on edge lengths, I never thought about the 2x2 quad waste in planar meshes like that.
Jul 01, 2026
@ID_AA_Carmack i don't have fable yet for me to understand this at a deep level.
Jul 01, 2026
@ID_AA_Carmack Apply this granular, factual, analytical, excellent breakdown to the waste and excess of using AI data centers for boring basic chatbot functions, like contact info and hours of operation.
Jul 01, 2026
@ID_AA_Carmack Would depend on the hardware target too, no?
Jul 01, 2026
@ID_AA_Carmack I saw some video about those pixel quads being a pain in the ass, idk why we don't fix that.
Jul 01, 2026
@ID_AA_Carmack Triangle count still matters more than most realize.
Jul 01, 2026
@ID_AA_Carmack Btw, for a large number of small triangles (1-3 pixels), this problem also valid for modern GPUs, which is why software/hybrid rasterizers like nanite or CUDA-based popular nowadays:
Jul 01, 2026
@ID_AA_Carmack Post bug fix version the original poster put up looks more inline with what you're saying here too
Jul 01, 2026
@ID_AA_Carmack John, have you thought about to apply game engine logic to render language (as in context engineering) instead of pixels? Specifically, there are interesting parallells betweeen the frame budget constraint in graphics and the context window constraint - and upstream from there.
Jul 01, 2026
@ID_AA_Carmack or or or calculate r^2 = x^2 + y^2 + z^2 for infinite polygons.
Jul 01, 2026
@ID_AA_Carmack >There probably isn’t any real world case where this would be a crucial optimization
Jul 01, 2026
@ID_AA_Carmack For ui work, this lesson never dies: total work matters but the shape and order of the work matter more, once caches, batches, and browsers enter the chat
Jul 01, 2026
@ID_AA_Carmack This is a topic covered by an old blog post from @_Humus_ with some benchmarks https://www.humus.name/index.php?page=News&ID=228
Jul 01, 2026
@ID_AA_Carmack Triangulation algorithms are RIDICULOUSLY finicky and near impossible to get right.
Jul 01, 2026
@ID_AA_Carmack yeah, triangle count gets all the attention.
Jul 01, 2026
@ID_AA_Carmack earcut does have an optional triangle area optimization pass based on delauney
Jul 01, 2026
@ID_AA_Carmack don't you think gpus are going to be running the model that does the rendering soon enough?
Jul 01, 2026
@ID_AA_Carmack Feels unreal to see my library get retweeted by my role model.
Jul 01, 2026
@ID_AA_Carmack cách sắp xếp tam giác phẳng này làm mình nhớ lại lần mình tối ưu mesh cho dự án cá nhân.
Jul 01, 2026
@ID_AA_Carmack also, these triangles are terrible for FEM, it's painful to look at those sharp edges
Jul 01, 2026
@ID_AA_Carmack Love this way of thinking.
Jul 01, 2026
@ID_AA_Carmack Could this graphic triangle building in GPUs has an Impact on AI? Given it also uses GPUs?
Jul 01, 2026
@ID_AA_Carmack Inscribing the polygon first reduces fragment work and that leads to a better optimization than that of edges?
Jul 01, 2026
@ID_AA_Carmack It's just how big is the cell list for the mesh.
Jul 01, 2026
Notably this is *also* a problem in ray tracing: long and thin triangles end up degrading BVH quality which makes traversal more expensive.
Jul 01, 2026
@NOTimothyLottes There's a lot of old news around.
Jul 01, 2026
@NOTimothyLottes the two truths ive come to accept in life
Jul 01, 2026
@NOTimothyLottes On my install the limit is 8M, even vkcube's usage is listed above 100mb, I don't think it will work in "no-additional setup" cases?
Jun 30, 2026
@NOTimothyLottes tinyplay does SNDRV_PCM_IOCTL_HW_PARAMS ioctl (referenced in the article alongside REFINE)
Jun 29, 2026
@NOTimothyLottes Have you actually reached out to said developers and offered to start a documentation effort/ask them some questions about things? It seems a little unfair to be rage posting about this all the time when the point is you (and me, and everyone) have the power to make it better.
Jun 27, 2026
@NOTimothyLottes It's seemingly incorrect due to it's use for NtWaitForAlertByThreadId.
Jun 26, 2026
sendmmsg/recvmmsg can only work with 1024 packets at a time unfortunately.
Jun 26, 2026
@NOTimothyLottes Take a look at http://lalists.stanford.edu/lad/2001/Nov/0248.html
Jun 24, 2026
This is a good parallel to what is happening now when it comes to the frontier models.
Jun 24, 2026
@VictorTaelin La invención de la imprenta fue revolucionario en la edad media, porque quienes concentraban el poder tenían miedo de que los plebeyos pudieran acceder al conocimiento masificado
Jun 24, 2026
@VictorTaelin interesting how Islam is the one religion that encouraged mass literacy, and because of that it meant that religion was personal.
Jun 24, 2026
@VictorTaelin They also believed writing was literal magic, translated as "words of god," hieroglyphs didn’t just communicate, they manifested reality.
Jun 21, 2026
@ninjadynamics When can we expect the gospel?
Jun 20, 2026
@VictorTaelin @comohology yeah, wouldn't it be lovely to view any and all models or formalisms as mere 'views' decoders over invariants in the quotient (isomorphism modulo operational equivalence)?
Jun 19, 2026
@VictorTaelin @comohology Isn’t it great that AI understands our human science attempts in a homomorphic manner and freely navigates the complexity space, coming up with proofs that were there all along, just never collected
Jun 19, 2026
This pattern appeared so often that in 2017-19 I had to conclude conventional math is a mess.
Jun 19, 2026
@VictorTaelin @comohology > what I wrote isn't just true
Jun 19, 2026
@VictorTaelin @comohology "what I wrote isn't just true, it is how humanity operates"
Jun 19, 2026
@VictorTaelin @comohology imo representations matter.
Jun 15, 2026
@NOTimothyLottes There is 0 chance you actually use this font.
Jun 15, 2026
@NOTimothyLottes Also this font is cursed
Jun 14, 2026
@NOTimothyLottes ohh what is that? a 2070SB?
Jun 14, 2026
@NOTimothyLottes Running in CRT or are you emulating scanlines in your editor?
Jun 13, 2026
@NOTimothyLottes Interesting font, does it have a name?
Jun 13, 2026
@NOTimothyLottes most futex impls i've seen check for that and early return before the syscall, but you likely already knew that
Jun 13, 2026
@axelgneiting The glibc implementation would do that.
Jun 13, 2026
@NOTimothyLottes nanosleep(0) will sleep for the timer slack
Jun 13, 2026
@NOTimothyLottes Seems like people trying to push high frame rates would be perfectly fine with just busy spinning at that point
Jun 13, 2026
Why not do a gradual sleeping? Start with
Jun 13, 2026
@NOTimothyLottes you can use camac (free) to take raw photos on iphone without post-processing shit
Jun 13, 2026
@NOTimothyLottes Why are you using CRT
Jun 13, 2026
@NOTimothyLottes Hz sharing? I wonder if CRTs can be changed like 60 -> 59 Hz, and if that would correct it? I do not know whether any is correct, but I'd betcha there's some kinda thing there about that.
Jun 11, 2026
'dinit' is out (no C++ for me) - so runit wins by default [also future desire to run busybox, so it's the natural choice]
Jun 11, 2026
@NOTimothyLottes My patience is this 🤏 thin with win11 right now, but Linux sounds like too much work, Mac is probably easier with more native software
Jun 11, 2026
@NOTimothyLottes fascinating to me how this challenge would have captivated me a couple decades ago but now i just wanna run away
Jun 03, 2026
@rfleury Can you share an open source project that follows this strategy? As someone deeply entrenched in the web and java world, I am finding it hard to wrap my head around.
Jun 03, 2026
@rfleury rad debugger is easy to read for such a complex project, I'm experimenting with the same long proc and noticed that when I add something I'm not constrained to early abstractions, I can connect dots much easier.
Jun 03, 2026
@rfleury Interesting! I was just reviewing code and thinking of solution when I read this tweet and realised "table + removing enum" solved it better than expecting the helper function to be used correctly.
Jun 02, 2026
@NOTimothyLottes I don’t think your even suppose to change your thread’s priority in general anymore, it just messes with scheduling.
Jun 02, 2026
@rfleury I like using lambdas or local functions to extract some common logic and put it behind a good name without cluttering things up outside
Jun 02, 2026
@rfleury yes! A similar problem comes when you follow retarded bob martin-esque rules like not exceeding 6 lines per function.
Jun 02, 2026
@rfleury I completely agree, adding a helper function rarely reduces complexity and often leads to a lot of argument bloat.
Jun 02, 2026
@rfleury oh I hate helper functions, especially the ones that get used exactly once and serve no purpose but hiding code
Jun 02, 2026
@rfleury I've come to refer to declarative as "just fucking say it" coding.
Jun 02, 2026
@rfleury I've been compressing in terms of "section functions" as opposed to helper functions.
Jun 02, 2026
@rfleury I noticed focusing on the data you work and how you work on it helps a lot
Jun 02, 2026
@rfleury I'll often inline every 'helper function' I find while coding.
Jun 02, 2026
@rfleury Entry point you mean indirection ?
Jun 02, 2026
@rfleury fewer entry points = fewer surprises
Jun 02, 2026
@rfleury I like giant matching functions with lots of helper functions as closures with limited scope.
Jun 02, 2026
@rfleury Only way to compress is dsl vv everything else is just the dsl with some extra boilerplate
Jun 02, 2026
@rfleury 100% agree, DRY can be extremely overdone.
Jun 02, 2026
@rfleury My mental model for this: Are you putting the mess in a closet, or are you actually organizing the it?
Jun 02, 2026
@rfleury A function explicitly limits the variables that its code depends on.
Jun 02, 2026
@rfleury I like this as it maps the problem with input on one side and output on the other.
Jun 02, 2026
@rfleury Does this imply if you took an external dependency, like Linux or matrix library, and started folding that code into your own, instead of calling into it, your code would improve?
Jun 02, 2026
@rfleury Can't tell just how many times I've pulled out something into it's own function only to use it once.
Jun 02, 2026
@rfleury I got a mess (kind of working fine but dirty) with c# extensions.
Jun 02, 2026
@rfleury db 설계에 앞서 모든데이터를 파일 입출력 으로 해서 최소 부하를 해보는것도 도움이됨
Jun 02, 2026
@rfleury Never thought of helper f-ns as code compression, you still have all the same stuff elsewhere.
Jun 02, 2026
@rfleury What about polymorphism and inheritance?
Jun 01, 2026
@Jonathan_Blow If my Microsoft is behind it, I don't want to touch whatever It is.
Jun 01, 2026
@Jonathan_Blow That is not how a GPU works?
Jun 01, 2026
@Jonathan_Blow When I see this, my first instinct is -- accelerated inference chips to compete with Apple Silicon in their strategy to move LLMs to local
Jun 01, 2026
@Jonathan_Blow Guess not too far
Jun 01, 2026
@tsoding Would be great a course from you about programming
May 31, 2026
@AgileJebrim This Isochron https://www.isochron.org/about ?
May 31, 2026
@Jonathan_Blow
May 31, 2026
@Jonathan_Blow what
May 31, 2026
@Jonathan_Blow
May 31, 2026
@Jonathan_Blow It's most likely referring to Nvidia's new ARM-based CPU
May 31, 2026
@Jonathan_Blow wtf are you even saying gng,boots to the gpu? What do you imagine the benefit would be.
May 31, 2026
@Jonathan_Blow Doubt it lol but it would be cool to see something radically different, its been a while.
May 31, 2026
@Jonathan_Blow Heard some rumors people from Europe, actually agree with them.
May 31, 2026
@Jonathan_Blow You still need a scheduler, so you still need a cpu.
May 31, 2026
@Jonathan_Blow This sounds like a PC that boots straight into Copilot and doesn't let you out.
May 31, 2026
@Jonathan_Blow Do you mean like for the challenge, or do you have specific use case needs this would enable?
May 31, 2026
@Jonathan_Blow Or an operating system which digitizea GPUs.
May 31, 2026
@Jonathan_Blow If you had a GPU at the center of your computer and you did general purpose computing on it, that would make it the CPU.
May 31, 2026
@Jonathan_Blow > A PC that boots straight to the GPU and has no CPU.
May 31, 2026
@Jonathan_Blow These former crypto/NFT/metaverse influencers really don't understand how computers actually operate.
May 31, 2026
@Jonathan_Blow its ARM cpu from mediatek with nvidia APU in laptop running windows on arm.
May 31, 2026
@Jonathan_Blow Microsoft doesn't have the chops to pull that off.
May 31, 2026
@NOTimothyLottes If you do the multiply in uint128_t and then right-shift by 64 places, the compiler should do the right thing.
May 31, 2026
@NOTimothyLottes Here I am still debugging by looking at if a single LED turns on.
May 31, 2026
@ThePrimeagen Are you using the Clay by any chance into the mix?
May 30, 2026
It's ARM based, so it's not like a GPU in the traditional sense, NVIDIA has made CPU/APUs AFAIK.
May 30, 2026
@AgileJebrim Unfortunately few know how to author programs that could fit in the GPUs tiny instruction caches.
May 30, 2026
I don't think thats a good idea, there's some escalating problems where games focus too much on GPU methods and end up suffering as a result.
May 30, 2026
@AgileJebrim Seems unrealistic to have hard real-time in a general purpose OS.
May 30, 2026
@AgileJebrim Why you guys trying to rebuild the world in the image of the raspberry pi?
May 30, 2026
What problem are you solving? What is the CPU lacking, and what does the GPU offer when the OS is ported to it? And I’m curious to know how you deal with stalls.
May 30, 2026
@Jonathan_Blow My suspicion is that it’s a Strix-like
May 30, 2026
@Jonathan_Blow Man you’re a f***ing moron.
May 30, 2026
@Jonathan_Blow Dude image that we wilo have gone from cpus with buikt in gpus to gpus with built in cpu
May 30, 2026
@Jonathan_Blow They're just going to announce an end to consumer hardware while they force all compute processing into their data centers and charge you a subscription fee for remote access from a cheap dumb terminal.
May 30, 2026
@Jonathan_Blow It's just a Spark that runs windows, maybe in laptop form factor.
May 30, 2026
@Jonathan_Blow It just means ARM running on Windows 11 using a Nvidia SoC.
May 30, 2026
@Jonathan_Blow That would make the GPU a CPU though
May 30, 2026
@Jonathan_Blow This is what it is: offload computation to cloud
May 30, 2026
@Jonathan_Blow It's almost certainly an ARM based integrated SoC with both GPU and CPU - a Windows equivalent of Apple silicon.
May 30, 2026
@Jonathan_Blow Take the perf hit in sequential processing, implement manual speculation and result discrimination and just go massively into pure parallel computing? Basically SoC for 10k that just needs a monitor, a keyboard and a mouse?
May 30, 2026
@Jonathan_Blow @stupidtechtakes just take this rock and bash me over the head with it
May 30, 2026
@Jonathan_Blow Arm is involved on the tweet sequence too, so I would expect unified memory and built-in tpu or something AI-centric
May 30, 2026
@Jonathan_Blow Jon, this is most likely NVIDIA N1 and N1X chips.
May 30, 2026
@Jonathan_Blow That would be cool, but I suspect it's just a new ARMv9 platform that NVIDIA has been developing for two years.
May 30, 2026
@Jonathan_Blow No CPU? So everything will be vector based?
May 30, 2026
@Jonathan_Blow Pretty sure this is their new ARM based SOC baloney that is supposed to be as powerful as a 5070.
May 30, 2026
@Jonathan_Blow Translation: "I'm a fucking idiot who has no idea how a computer works"
May 30, 2026
@Jonathan_Blow Are these the longitude and latitude to some stupid event no one outside of the current ai bubble will care about? I would check but I don't want to be right.
May 30, 2026
@Jonathan_Blow I bet is a DGX Spark Copilot edition.
May 30, 2026
@Jonathan_Blow Does that mean as an application developer the idea of a “main thread” would totally disappear? The centrality of a central processing unit is a really nice mental model.
May 30, 2026
@Jonathan_Blow Boots straight to the GPU?
May 30, 2026
@Jonathan_Blow That would make that GPU a CPU by definiton😁
May 30, 2026
@Jonathan_Blow Are you making the argument that most computer tasks can be parallelized to run well on the GPU, or that GPUs can be viably modified to deal with single thread tasks decently enough that separate hardware for that is not worth it?
May 30, 2026
@Jonathan_Blow It's definitely not that...
May 30, 2026
@Jonathan_Blow GPUs are awesome at some things, suck at others.
May 30, 2026
This just wouldn't work?? There is a very good reason why CPUs and GPUs are different and separate, they handle workloads in entirely different ways and both fill each other's weak spots.
May 30, 2026
@Jonathan_Blow So a system on a chip? But the entire concept of a PC is the ability to swap parts over efficiency?
May 30, 2026
@NOTimothyLottes Very keen to see how the GPU side audio turns out!
May 29, 2026
@Jonathan_Blow That sounds awful to me.
May 29, 2026
@Jonathan_Blow It's this:
May 29, 2026
@Jonathan_Blow @rianflo We’re building an RTOS on the GPU.
May 29, 2026
@Jonathan_Blow GPUs are extremely dumb.
May 29, 2026
@Jonathan_Blow Most likely another handheld, sadly
May 29, 2026
@Jonathan_Blow Pero sigue siendo un CPU con integrada, nada mas que es ARM.
May 29, 2026
@Jonathan_Blow N1X chip probably
May 29, 2026
@Jonathan_Blow It’s that new Nvidia ARM based APU that @mooreslawisdead has talked about
May 29, 2026
@Jonathan_Blow Explain as you would to a child….
May 29, 2026
@Jonathan_Blow Bolt Graphics is claiming to have a cheap GPU they'll be launching on Risc V that can be ran as a computer with performance better than the 5090.
May 29, 2026
@Jonathan_Blow +1, here's hoping.
May 29, 2026
@Jonathan_Blow windows cannot get into a new era as long they cannot have the balls to abandon x86 and legacy compatibility
May 29, 2026
@Jonathan_Blow https://videocardz.com/newz/nvidia-teases-new-era-of-pc-ahead-of-n1-and-n1x-laptop-chip-announcement
May 29, 2026
@Jonathan_Blow It's probably going to be some internet box, where you don't own your own memory, processing, power, or storage.
May 29, 2026
@Jonathan_Blow which also means your gpu will have to run windows as your trying to fully utlise the gpu for other things
May 29, 2026
@Jonathan_Blow there are ARM and x86 cpus in the works with RTX chiplets.
May 29, 2026
@Jonathan_Blow It's a pc that requires you to login to xbox battle pass on boot
May 29, 2026
@Jonathan_Blow My money is on this being some ARM-based SoC.
May 29, 2026
@Jonathan_Blow One can dream, in an ideal world this would have a publicly available well defined spec that would allow a swathe of alternative OS projects to be built.
May 29, 2026
@Jonathan_Blow What would that actually mean, in terms of hardware? I assume you don't mean that the GPU would have a CPU on package, because that's really no different than a Strix Halo or Core Ultra, etc.
May 29, 2026
@Jonathan_Blow My guess is a remote desktop/OS.
May 29, 2026
@Jonathan_Blow Please NVIDIA don’t be lame.
May 29, 2026
the part that makes this tricky is the memory model.
May 29, 2026
@Jonathan_Blow Seamlessly and irrevocably integrated with AI!
May 29, 2026
@Jonathan_Blow no CPU no Harddrive....
May 29, 2026
@Jonathan_Blow Where do Microsoft put the subscription button then? 🙈
May 29, 2026
@Jonathan_Blow This was not even exciting not because of NVIDIA, which is okay...
May 29, 2026
@NOTimothyLottes this doesn't have to be like this ..
May 29, 2026
@ThePrimeagen Born to gui, forced 2 tui
May 29, 2026
@ThePrimeagen Everything GUI related is always lines and lines of code
May 29, 2026
@ThePrimeagen Sir you can't just build your UI like that in a couple thousand lines of code.
May 29, 2026
@ThePrimeagen I don't even have a layout system, mostly just drawInFrame.
May 27, 2026
@tsoding 💯
May 26, 2026
@SebAaltonen Found a small typo 🙂
May 26, 2026
@pikuma Actually it still happens in #retrocomputing
May 26, 2026
@pikuma Still use books, using llms for learning feels fake.
May 26, 2026
@pikuma O' no, they (I) totally do.
May 26, 2026
@pikuma This year I've read "Game programming patterns" (goated) and a portuguese graphics programming book.
May 26, 2026
@pikuma Also, people stopped watching programming tutorials.
May 26, 2026
I still buy loads of programming books.
May 26, 2026
@pikuma I still find (and keep buying) programming books the best way to learn how to start learning a language or paradigm in the long run, the magic is in repetition and reminders along the way.
May 26, 2026
@pikuma I do, even though they are ebooks these days.
May 26, 2026
@pikuma I have been reading csapp recently, It is really humbling.
May 26, 2026
@pikuma to be fair, i prefer ebooks.
May 26, 2026
@pikuma skimmed "the algorithmic beauty of plants".
May 26, 2026
@pikuma I think within programming, the “How To” books will largely disappear, but I find books like OSTEP and TLPI worth every ounce of their printed weight in gold.
May 25, 2026
@AgileJebrim As a curious bystander: can you give a rough idea how suboptimal it is to do "the naive thing"?
May 25, 2026
@AgileJebrim Using a hierarchical/structured layers on-device parallel reduction of cascading (multi-pass) kernels.
May 25, 2026
@AgileJebrim Nvidia has good resources on this https://developer.download.nvidia.com/assets/cuda/files/reduction.pdf
May 25, 2026
@AgileJebrim I would allocate a variable in VRAM, then partition or map the array into a texture (or two).
May 25, 2026
Use OpenMP :^)
May 25, 2026
@AgileJebrim when we were first evaluating "compute shaders" at sony it was my job to find the ideal answer to this very question, and i got it right.
May 25, 2026
@AgileJebrim I have no idea about GPU hardware and how it works, can’t answer
May 24, 2026
@AgileJebrim Lots and lots of atomics.
May 24, 2026
@AgileJebrim Shrink the array over and over until it's down to a single value.
May 24, 2026
@AgileJebrim Add up all the columns separately.
May 24, 2026
@AgileJebrim Large array of values is stored in float/double.
May 24, 2026
@AgileJebrim They asked the same question to me at nvidia, it's a good one!
May 24, 2026
@AgileJebrim I think this is a simple example of "look how much I know about a niche topic, let's find something I know but others don't, so I feel superior".
May 24, 2026
@AgileJebrim M x N multipass reduction
May 24, 2026
@AgileJebrim Then make them build it in Minecraft using pre-2016 redstone.
May 24, 2026
@AgileJebrim many people don't write code that touches the gpu
May 24, 2026
@AgileJebrim If the array is in RAM, do it sequentially.
May 24, 2026
@AgileJebrim This is an idiotic interview question
May 24, 2026
@AgileJebrim I have no meaningful GPU coding experience.
May 24, 2026
@AgileJebrim I would embarrass myself by trying to answer because from the application level a GPU is just a way of using money to make pytorch faster.
May 24, 2026
@AgileJebrim Hierarchical map reduce?
May 24, 2026
I'm bored so I'm gonna give this question a good shot (I learned a bunch of GPU architecture stuff back in uni but I had to look a couple things up to make sure I wasn't mixing terms up).
May 24, 2026
@AgileJebrim If you can fit Qwen 3.6 into your gpu, just load that with ollama and it will write the code for you.
May 24, 2026
@AgileJebrim It's for a frontend JavaScript position I see.
May 24, 2026
@AgileJebrim What kind of GPU?
May 24, 2026
@AgileJebrim No idea about GPU programming, cpu hints towards divide by half, but wouldn’t matrix multiplication works better here? Something like ask gpu to multiply source array by column full of 1 of the same length? Would love if somebody can explain if that would work
May 24, 2026
@AgileJebrim divide into small arrays, conquer each array on a core, then sum the sums?
May 24, 2026
@AgileJebrim I am not knowlegable enough with GPUs, but does numerical stability of the result play a role in questions like these?
May 24, 2026
@AgileJebrim Do floor(warpsize/arraysize) sums, keep using the same accumulated warpsize array until the whole array is done.
May 24, 2026
@AgileJebrim you shouldn’t do that on the GPU.
May 24, 2026
@AgileJebrim Easy.
May 24, 2026
@AgileJebrim Divide up the available memory between cores, each with out output slot and as many input slots as possible.
May 24, 2026
@AgileJebrim Does the array initally exist in GPU memory or CPU?
May 24, 2026
@AgileJebrim efficient reductions are a very deep rabbit hole even on single gpu https://developer.download.nvidia.com/assets/cuda/files/reduction.pdf
May 24, 2026
@AgileJebrim i see it as a convolution task.
May 24, 2026
Use a parallel reduction, not atomics from every thread.
May 24, 2026
@AgileJebrim tree reduction?
May 24, 2026
@AgileJebrim Answering blind: hierarchically.
May 24, 2026
@AgileJebrim They need to know how GPU shaders are organized to even answer this.
May 24, 2026
@AgileJebrim mapreduce.
May 24, 2026
@AgileJebrim I had this problem as an example in a uni class covering cuda, curious how their solution and explanation holds up
May 24, 2026
What precision are the numbers? Integer or floating point? Do we care about numerical stability? Can we assume we're on an NVIDIA GPU with threads, warps, CTAs, and grids? How much memory bandwidth do we have? Is that array of numbers big or really big?
May 22, 2026
@SebAaltonen Great article, I remember reading it a while back when it was frontpaged on HN.
May 13, 2026
@tsoding Hey, I’ve been following your work for a long time — big fan of your research and explanations.
May 11, 2026
@nicbarkeragain I've been doing some very intro stuff with SDL lately and it's been a real pleasure, it's pretty impressive what can be accomplished with a handful of functions and a lot of trial and error.
May 11, 2026
@nicbarkeragain I just started cranking out shaders, its helped alot in my understanding tbh
May 11, 2026
@nicbarkeragain @raysan5 raylib mentioned
May 10, 2026
@nicbarkeragain My only computer is an apple silicon macbook.
May 10, 2026
@nicbarkeragain Agreed.
May 10, 2026
@nicbarkeragain No, pretty sure you start with implementing boolean operators on solids yourself.
May 10, 2026
@nicbarkeragain Opengl 3.3 is fine for most learning demoing purposes, and if you are on windows probably d3d11 is the next step.
May 10, 2026
@nicbarkeragain I highly suggest sdl gpu because in addition to the shape being friendly to transition to vulkan from, it also comes with a set of constraints that make you think more creatively about how to work with data.
May 10, 2026
@nicbarkeragain Opengl is literally a waste of time.
May 10, 2026
@nicbarkeragain Planet Earth is far more locked-in to OpenGL than most people realize.
May 10, 2026
@nicbarkeragain What do you think about WebGPU.
May 10, 2026
@nicbarkeragain I used sokol with Odin bindings and it was the best decision I made
May 10, 2026
@nicbarkeragain I started with pset(x,y),color 🙃 and then just "writing pixes to memory" - I agree with the Vulkan sentiment though
May 10, 2026
@nicbarkeragain sokol is amazing, works at exactly the right level of abstraction to learn so much while still getting stuff done
May 10, 2026
@nicbarkeragain why are we recommending opengl in 2026? genuinely asking since it seems so old
May 10, 2026
@nicbarkeragain Yep, totally agree! I did this mistake.
May 10, 2026
@nicbarkeragain I started with https://learnopengl.com/ very good resource.
May 10, 2026
@nicbarkeragain I've been saying start with OpenGL 3.3 (or higher) instead of Vulkan forever.
May 07, 2026
@ocornut So, you're telling me, nobody since Windows 95 developed good zooming app?
May 07, 2026
@ocornut Include it in Imgui or imgui te?
May 06, 2026
@ocornut New ImGui tool! ImMagnify or call it ImEnhance haha
May 06, 2026
@ocornut What abt ZoomIt? They added it to powertoys some time ago
May 06, 2026
@ocornut Is there a way we can get it? Window magnifier is just MEH.
May 06, 2026
@ocornut I been using fscapture since 2009
May 06, 2026
@ocornut don't be ashame to reinvent the wheel.
May 06, 2026
@ocornut This is one of those things I find way better on macOS - builtin magnifier keyboard shortcut, no app to launch at all.
May 04, 2026
@rfleury macOS does this for ages, they have help menu search on cmd+shift+/, which filters all the menu commands for the app
Apr 21, 2026
@KaidoGenkai To be fair..
Apr 20, 2026
@KaidoGenkai Is this a fucking Choro Q game? I played so much Gadget Racers (Choro Q HG) as a kid it was crazy.
Apr 20, 2026
@KaidoGenkai Same.
Apr 20, 2026
@KaidoGenkai and the odd random soundtrack additions to the american version are awesome!
Apr 20, 2026
@KaidoGenkai When I bought this game I remember how mad I was getting home only to find the disc was blank.
Apr 20, 2026
@KaidoGenkai thats what u think game recognizes game i know your game has some inspirations from road trip its one of my fav goat games from my childhood and why im excited for kaido genkai and road island adventure both
Apr 20, 2026
@KaidoGenkai does make me happy whenever i find another person who loved it as much as I did though, such a niche game in the grand scheme of things but its nice knowing so many people had the same experience as me
Apr 20, 2026
@KaidoGenkai My little bro scratched the shit out of my copy wayy back in the day.
Apr 19, 2026
@KaidoGenkai the 4th game just called ChoroQ is also a genuinely amazing game.
Apr 19, 2026
@KaidoGenkai Agreed, apart from the racing collisions which are terrible, the rest is really good
Apr 19, 2026
@KaidoGenkai im waiting for a retro achviement set before i dive into it mostly the other games in the series do have a set already
Apr 19, 2026
@KaidoGenkai It's sad that literally nobody I'm friends with even knows about this game or Choro Q in general.
Apr 19, 2026
@KaidoGenkai Golf with a car...
Apr 13, 2026
@tsoding Real, i started learning the moment I opened my visual studio and created a project, but I think Your rephrasing may make people confused.
Apr 07, 2026
@nicbarkeragain I see your “command palette” and raise you an “everything palette”
Apr 07, 2026
@nicbarkeragain that's why visual assist X and resharper find symbol stuff are the most powerful feature of all.
Apr 06, 2026
@nicbarkeragain macOS has this in all applications.
Apr 05, 2026
@flowerornament The more I read about Murail the more I would love to be able to compare notes...I've been working on something based on operad diagrams that seems to be almost exactly dual to your design...ping me!
Mar 26, 2026
@BOENSAW Just go full haskell and realize that everything is a function
Mar 26, 2026
@BOENSAW This is a take for the whole software industry
Mar 26, 2026
@BOENSAW Functions that Operate on Structs/Classes/Entities/Objects makes things simple.
Mar 26, 2026
@BOENSAW you are almost there unc
Mar 25, 2026
@BOENSAW GameMaker introduced me to the Entity paradigm.
Mar 25, 2026
@BOENSAW Entities don’t have to go but having a mental framework where entities run functions is probably not helpful.
Mar 25, 2026
@BOENSAW How do you even have a functioning game without entities
Mar 25, 2026
@BOENSAW Object { data stuff; function stuff }
Mar 25, 2026
@BOENSAW everything is just functions and variables, it's functions all the way down
Mar 25, 2026
@BOENSAW there's a whole book about this https://www.dataorienteddesign.com/dodbook/
Mar 25, 2026
@BOENSAW So, not an ecs but only a es
Mar 25, 2026
@BOENSAW Patterns are guidelines, but coding is a holistic and spiritual activity.
Mar 25, 2026
@BOENSAW The only thing you ever need to think about is how the data flows, and sometimes when it flows if the paths leak.
Mar 25, 2026
@BOENSAW Thats because entities and ECS are the new shiny thing and everyone loves to jump on the cool train.
Mar 25, 2026
@BOENSAW Finding out being Turing complete just requires less and not more?
Mar 25, 2026
@BOENSAW All that matters is memory and logic, everything else is a made up abstraction
Mar 25, 2026
@BOENSAW There are no universal pattern common to every game, especially if you are searching for efficiency.
Mar 25, 2026
@BOENSAW Objects, arrays, singletons.
Mar 25, 2026
@BOENSAW I feel like the actually useful patterns just emerge by themselves if you try doing something that needs them.
Mar 25, 2026
@BOENSAW team fat struct!
Mar 25, 2026
@BOENSAW Eventually you realize literally nothing matters except for love and friendship!!!!
Mar 19, 2026
@flowerornament FWIW you’re speed running shader dev in modern AAA, they do a hacky emulation of a rate lattice type idea bc GI and fog etc need to be amortised over several frames.
Mar 19, 2026
@flowerornament You may want to reach Pedro Domingos.
Mar 16, 2026
@NOTimothyLottes On x86 the MOV instruction is Turing complete.
Mar 13, 2026
@valigo If there's a benefit to doing something, it seems to get pushed to the extreme.
Mar 13, 2026
@valigo We did it since the beginning of times:
Mar 13, 2026
@valigo Bro everything is just in the cloud (other peoples' computers).
Mar 13, 2026
@valigo if by "hardware locks" you mean things like x86's `lock` prefix then there's a difference - that guarantees atomicity but unlike SW locks it can't deadlock etc so forward progress and correctness are both guaranteed.
Mar 13, 2026
@valigo This very post is an example of this.
Mar 13, 2026
@valigo it's not us, it's the marketing people.
Mar 13, 2026
@valigo "we"? Speak for yourselves
Mar 13, 2026
@valigo Why are you lumping everyone together? I understand that you are exaggerating for effect, but such provocations are, at best, pointless.
Mar 13, 2026
@valigo "serverless" doesn't mean better, it means you target a particular runtime and set of constraints and you get desirable scaling properties.
Mar 13, 2026
@valigo as engineers we need to be especially careful because it’s really all about trade-offs.
Mar 13, 2026
@valigo I would say we have shallow understanding where we gonna end as designers / researchers / engineers
Mar 08, 2026
@NOTimothyLottes Did they not just use more historical frames to get their samples and have a better model to compensate for the side effects?
Mar 06, 2026
@rfleury I think your analysis glosses over a lot of the production realities that shape how current pipelines develop and has nothing to do with art/programmer leanings.
Mar 06, 2026
@rfleury bad take is bad, the assumption that artists aren't interested in modularity and reuse is patently false
Mar 06, 2026
@rfleury This is genuinely a place where AI might be useful; comparing assets and deduping is a pain in the ass, but not necessarily all that difficult.
Mar 06, 2026
@rfleury This is the main contributing factor.
Mar 06, 2026
@rfleury Don't forget outsourcing.
Mar 06, 2026
@rfleury IMO If more artists and programmers were knowledgeable about the others work even it would make a huge difference.
Mar 06, 2026
@tsoding One side effect of learning languages is that your username becomes illegible, Тсыфдиг
Mar 05, 2026
@rfleury 7zip compresses across files.
Mar 05, 2026
@rfleury Programmers also build better games than art majors.
Mar 05, 2026
@rfleury Needs extensive early planning if you want that kind of flexibility in components.
Mar 05, 2026
@rfleury ???????????
Mar 05, 2026
@rfleury Look, the compiled machine code is like a few megabytes, maybe a gigabyte if it’s like a huge huge project.
Mar 05, 2026
@rfleury The strive for realism in games was a loss on many axes imo
Mar 05, 2026
@rfleury Strongly agree.
Mar 05, 2026
@rfleury I agree with the conclusion, but these examples, labeled “programmer” and “artist,” will only draw unnecessary attention to a false dichotomy.
Mar 05, 2026
@rfleury I expected a ragebait turn any second with "techbroes > artist cucks" or "le noble artists > smelly nerds" but this take is like 100% facts
Mar 05, 2026
TBH most games do have this pipeline, it’s just a technical artist that does it.
Mar 05, 2026
@rfleury I also think a big reason that programmers reuse artwork is because most don't like doing artwork in the first place lol.
Mar 05, 2026
@rfleury you provide no source but you talk confidently.
Mar 05, 2026
@rfleury The problem is that the west refuses to keep people employed for enough time for artists to learn this.
Mar 03, 2026
thanks this interests me so much in relation also to the primary duals of Chaos/Random as essentially a shortening of flux wave from null horizon...
Mar 02, 2026
@EricLengyel A three dimensional drawing is by necessity a projective geometry.
Mar 02, 2026
@EricLengyel One pain behind point-based PGA is it's inconsistency with set theory and Boolean logic, given grades appear as literal bitcodes that you'd want to do Boolean logic on.
Feb 07, 2026
@EricLengyel So in the case of two vectors, the result of the geometric product would be a mixed grade bivector+scalar, right?
Feb 06, 2026
@EricLengyel Never could understand right or left contraction, still don't.
Feb 06, 2026
@rfleury Every time I seeyour videos I feel both an enormous amount of hope and an equal amount of despair.
Feb 06, 2026
@tsoding in my country, teacher use a frensh version of cobol of 1950 as programming language.
Feb 05, 2026
@SebAaltonen why does every hard core programming blog/book have some coldish scenery as a banner/cover? like, no exceptions
Feb 05, 2026
@rfleury http://Shortcat.app but done at an OS level with more attention would be absolutely fabulous.
Feb 05, 2026
@rfleury I miss the days when Windows added and improved UI controls and apps rushed to adopt them.
Jan 26, 2026
@tsoding Sounds like it's time you checked out http://data-star.dev
Jan 24, 2026
@EricLengyel Book ordered...
Jan 24, 2026
@EricLengyel @Jonathan_Blow wow, you are wrong on this point.
Jan 19, 2026
@valigo Mike Acton is e-celeb tier
Jan 19, 2026
@valigo Wow python is fucking slow as its not efficient as something like C++
Jan 19, 2026
@valigo "Imagine working your ass off, praying to a statue of Mike Acton in your bedroom, and then some twitchy manager on cocaine demands that you transpile 6 years of hard work through a [spiritually] Python interpreter".
Jan 12, 2026
@Dispatch_Graph Apples and oranges comparison here
Jan 12, 2026
@Dispatch_Graph It's KWin
Jan 12, 2026
@Dispatch_Graph I suggest you to stick with GLFW if you’re only doing Vulkan.
Jan 12, 2026
@Dispatch_Graph
Jan 12, 2026
@Dispatch_Graph Well.
Jan 12, 2026
@Dispatch_Graph What about x11
Jan 12, 2026
@Dispatch_Graph Why? Sdl works great
Jan 12, 2026
@Dispatch_Graph fuck x11
Jan 12, 2026
@Dispatch_Graph Oddly enough, with how old the wine project is, Win32 might be the most stable API on Linux.
Jan 12, 2026
@Dispatch_Graph Elaborate please, I'm still an X11 user
Jan 12, 2026
@Dispatch_Graph windows.h is like a nightmare but real.
Jan 12, 2026
@Dispatch_Graph And let us say Amen
Jan 12, 2026
@Dispatch_Graph Get Xlibre instead.
Jan 11, 2026
@Dispatch_Graph Hard to believe I’m still writing games in Win32 25 years later.
Jan 11, 2026
@Dispatch_Graph Yep.
Jan 11, 2026
@Dispatch_Graph coincidentally, i made a Vulkan Wayland compute engine yesterday in ~600 LoC.
Jan 11, 2026
yeah.
Jan 11, 2026
@Dispatch_Graph Yea windows makes some interesting choices lol.
Jan 11, 2026
@Dispatch_Graph one thing I appreciate about wayland is that it's just a simple protocol spec so you are not married to any particular API/library but yeah it can be a lot of work to get basic things working
Dec 30, 2025
@SebAaltonen What'd be really cool is to have a translation layer to Vulkan so the API could be picked up and used today - it looks a lot less painful to start a new project in than pure Vulkan
Dec 30, 2025
@SebAaltonen I notice that your proposed minimal API makes use of PCIe ReBAR.
Dec 30, 2025
@tsoding It sounds logical.
Dec 28, 2025
@LandsknechtPike If you can't afford the book, here's a review:
Dec 28, 2025
@SebAaltonen I think this part sounds self-contradictory:
Dec 27, 2025
@LandsknechtPike Great book.
Dec 27, 2025
Hey Sebastian, big fan of your work.
Dec 27, 2025
@SebAaltonen Great work! This kind of knowledge is not exposed by the existing APIs.
Dec 26, 2025
@ID_AA_Carmack Code (when one doesn't use short cryptic names for variables and uses algorithms instead of explicit loops) is so more readable...
Dec 26, 2025
@ID_AA_Carmack Lots of hate in the thread.
Dec 26, 2025
@LandsknechtPike Add....
Dec 26, 2025
@LandsknechtPike The Aztecs ancestors had to walk all the way to North America and start from scratch, so...
Dec 26, 2025
@LandsknechtPike Its quite expensive that book
Dec 25, 2025
@ID_AA_Carmack The reason for pseudocode is that it is assumed that the reader can "fill-in the details" by themselves.
Dec 25, 2025
@ID_AA_Carmack Definitely not.
Dec 25, 2025
@ID_AA_Carmack They wouldn’t get rejected, but they would get bound to a single language/stack.
Dec 25, 2025
@ID_AA_Carmack I mean - MANY computer graphic papers didn't need be a paper to begin with, a quick tweet/blog post/github project/shadertoy demo would have sufficed.
Dec 24, 2025
@ID_AA_Carmack I have a lot to say about the pretentious side of humanity that seeks to complicate things, under the delusion that it helps understand them.
Dec 24, 2025
@ID_AA_Carmack could 't we make a new journal that publishes code implementations of math papers? "Applied replication" or "Practical replication" or "transmodal replication" study.
Dec 24, 2025
@ID_AA_Carmack No, it’s usually just easier to use Greek due to line length.
Dec 24, 2025
@ID_AA_Carmack The solution is to write your own pseudopseudocode parser which converts what appears to be pseudocode to a real target.
Dec 24, 2025
@ID_AA_Carmack they'd probably call it 'unconventional presentation' and then reject it.
Dec 24, 2025
@ID_AA_Carmack I actually have two hpg papers with close to full implementations in the appendix, or split up into figures in the body.
Dec 24, 2025
@ID_AA_Carmack the paper has to be understandable to get accepted, but if it's too understandable it gets rejected
Dec 24, 2025
@ID_AA_Carmack 1.
Dec 24, 2025
@ID_AA_Carmack It's not about being smart, it's using the correct jargon, or better yet, making up new jargon and making sure everyone else starts using it.
Dec 24, 2025
I can state publicly that “once @ID_AA_Carmack is no longer a person who can sensibly program anything and be over there where such people exist; DAREISAY co-exist while not -exactly- loving each other- I can state publicly that @ID_AA_Carmack the woman is @special and I will represent him as what he will identify as; once that day comes.”-(FWTPS3727-redacted:(-censored-) (J))
Dec 24, 2025
@ID_AA_Carmack Its just to protect academics from the fact that most of them dont know how to write code well
Dec 24, 2025
@ID_AA_Carmack A ancillary benefit is that after studying computer science and physics, I found it relatively easy to read all of the signs when I travelled to Greece.
Dec 24, 2025
@ID_AA_Carmack Academic publishing standards aren't my lane—I track settlement verification and infrastructure constraints.
Dec 24, 2025
@ID_AA_Carmack I actually think we should ban non latin letters in all papers (written in English) - things should be named, period.
Dec 24, 2025
@ID_AA_Carmack The main problem is the lack of precision in our descriptions.
Dec 24, 2025
@ID_AA_Carmack The main reason is that you want perfect correspondence between variables in the algorithm and definitions/proofs.
Dec 24, 2025
@ID_AA_Carmack After doing a PhD, I came to the conclusion that academia is 75% performative BS like this.
Dec 24, 2025
@ID_AA_Carmack interesting!- i don't know cs or coding, but greek notation really helps when reading mathematical texts( though, i know this is just a convention that we might simply be used to it)
Dec 24, 2025
@ID_AA_Carmack An example of this done right, is the Clip paper, (lead author is also lead author of GPT).
Dec 24, 2025
@ID_AA_Carmack Even papers that utilize actual code have a huge crisis with regards to reproduceable results.
Dec 24, 2025
@ID_AA_Carmack Wow, I said this for ten years.
Dec 23, 2025
@ID_AA_Carmack If you pick the right journals, you'd be just fine.
Dec 23, 2025
@ID_AA_Carmack i hate math notation with all my soul, one of my GPT usages is "translate every symbol to a descriptive camelCase variable name".
Dec 23, 2025
@ID_AA_Carmack "I have to read carefully and am not familiar with the notation" => reject
Dec 23, 2025
@ID_AA_Carmack That papers are full of pseudocode, which cannot compile or be otherwise verified, is load-bearing in the extreme.
Dec 23, 2025
@ID_AA_Carmack How hard would it be for LLMs to transcribe this.
Dec 23, 2025
@ID_AA_Carmack Math papers often look like API drafts with deliberate bad naming to avoid bike shedding in the review process.
Dec 23, 2025
@ID_AA_Carmack Every time in DL, its much simpler in code than in complicated math mumbo jumbo
Dec 23, 2025
@ID_AA_Carmack One of the best use cases for LLMs I've found so far is to be able to chew them to better understand it
Dec 20, 2025
@SebAaltonen Really interesting stuff!
Dec 18, 2025
@SebAaltonen "less API" is not a good thing per se.
Dec 18, 2025
@SebAaltonen Did you update your article? There was a section where you mentioned your history and who you are, and now it's not there.
Dec 18, 2025
@SebAaltonen Hey, great post.
Dec 18, 2025
About this part:
Dec 18, 2025
@nicbarkeragain This is probably why reading Rob Pike and Ken Thompson code back-to-back is so elucidating.
Dec 18, 2025
@nicbarkeragain When possible, I like to "make the mistakes" so we all learn from it together.
Dec 17, 2025
@SebAaltonen Very nice! How big do you think the WebGL header would be? Just for completeness' sake, e.g.
Dec 17, 2025
@SebAaltonen One thought that came to my mind, would it be preferable to have something akin to virtual alloc vs malloc for gpus? Its not a huge difference, but it does open up some opportunities (easy arenas, sparse buffers, extra mapped ring buffers, etc)?
Dec 17, 2025
@SebAaltonen This was a great post! I agree with almost everything you wrote.
Dec 17, 2025
@SebAaltonen Read it in one gom I even understood some of it!
Dec 17, 2025
@SebAaltonen “As the heap management in Metal is automatic, users can’t allocate texture descriptors in contiguous ranges.”
Dec 17, 2025
@SebAaltonen I notice one missing topic here: the issue of frame presentation (e.g., "v-sync", screen tearing, double and triple buffering, frame pacing, etc.) In this sense, for example, Vulkan just specified VK_EXT_present_timing earlier this month.
Dec 17, 2025
@SebAaltonen Very disappointing to see some of the shallow discourse so far! It is a very thorough blog article but many of the comments are irrelevant and headline oriented
Dec 17, 2025
@SebAaltonen a minimal api like this feels like it'd be fun to use in smaller projects, what's the current closest thing to something like this that's usable now?
Dec 17, 2025
@SebAaltonen Hi, great article! For someone who knows gpu from hpc/simulation/academic work, what graphics API would you suggest as a starting point?
Dec 17, 2025
@SebAaltonen Thank you! Awesome post.
Dec 17, 2025
Re: we should keep using index buffers and indexed vertices
Dec 17, 2025
@NOTimothyLottes question is how much overhead.
Dec 16, 2025
@SebAaltonen Make it happen! What shader format are you thinking? Spir-V? I like that in OpenGL i can easily write a tool that generates shaders without the need to be dependent on a compiler library to use it, but i would assume that time has passed.
Dec 16, 2025
@SebAaltonen Finally!
Dec 16, 2025
@SebAaltonen from what I've been able to find from public info, many APIs (e.g.
Dec 16, 2025
@SebAaltonen It's been a great read.
Dec 16, 2025
@SebAaltonen Minor nitpick: The trick of packing depth and color into a 64-bit integer and using an atomicMin to emulate the depth test had already been used in 2014 by @pixeljetstream one year before Dreams and a long time before Nanite 😉
Dec 16, 2025
@SebAaltonen Congrats on getting this out in the world! I can only imagine the relief to finally have all of these thoughts out of your head and consumable for others
Dec 16, 2025
@SebAaltonen A shoutout to NV_shader_buffer_load which already enabled buffer device address with c-pointer syntax in GLSL and OpenGL in, I think, 2010.
Dec 16, 2025
@rfleury It is weird to me how there has been lots of advancement in tools that GUIs can be built on top of (Iced, EGUI, DVUI, technically Bevy_UI, Raylib even, and dear IMGUI)
Dec 15, 2025
@rfleury The only consistent api in Linux land is a terminal from the 70s.
Dec 15, 2025
@rfleury Day 700 of waiting until the uncultured realize that you can have a "GUI" terminal and you can have your stupid broken legacy serial console and limitless GUI and input options at the same time.
Dec 15, 2025
@rfleury Basically just sending character set binary data, so whether the Terminal or your own GUI application renders the data doesn't really matter.
Dec 15, 2025
@rfleury i'd agree on the first two, but remote is a hard sell
Dec 15, 2025
@rfleury Here before someone mentions X port forwarding :D
Dec 13, 2025
@rfleury It is fair.
Dec 11, 2025
@rfleury Software was "good" 10 years ago.
Dec 07, 2025
@rfleury When I was young and poor, looked for zero cost solutions.
Dec 06, 2025
@rfleury We’re trying to change this at @BuildWithGrove but we need folks to put addresses in their bio.
Dec 05, 2025
@rfleury I respectfully disagree, without open source or free software, I don't know if I would be here, and I can safely say that goes for many many others out there.
Dec 05, 2025
@rfleury Putting that genie back in the bottle is a Sisyphean task.
Dec 05, 2025
@rfleury One may read this (well written) article to get an understanding of reality.
Dec 05, 2025
@rfleury Open and prop SW have different benefits and penalties.
Dec 05, 2025
@rfleury the entitled 'give me free software or else' camp is dumb and enough of a minority it's not worth arguing with.
Dec 05, 2025
@rfleury Bold take but
Dec 05, 2025
@rfleury ie.
Dec 04, 2025
@rfleury In other words: people spending large amounts of time should be compensated for the labor they put into developing open source software.
Dec 04, 2025
@rfleury What do you make of Blender btw?
Dec 04, 2025
@rfleury I think this is a good new angle on the free/owned debate, because it's accountable that people who write open source software labor for others for free.
Dec 04, 2025
@rfleury Is the answer really lots of small walled gardens? I guess you can potentially keep the large corps out, though you need to vet every member to make sure they aren't "spies".
Dec 04, 2025
@rfleury We need more payed-for software where source is included.
Dec 04, 2025
@rfleury makes no sense, too many things need to support too many other things.
Dec 04, 2025
As someone who works in free and open source software, over time, I feel more and more in a similar way.
Dec 04, 2025
@rfleury FOSS altruism, much like Rust’s safetyism, is a symptom of decadence, not its underlying cause
Dec 04, 2025
@rfleury As you already know, I don't disagree with you on this at all.
Dec 04, 2025
@rfleury Yes...
Dec 04, 2025
@rfleury What do you mean by "furthest extreme of free and open source philosophy", the "all private software should be illegal guys", or simply the "we should make more free and open source software"?
Dec 04, 2025
@rfleury Excellent writing.
Dec 04, 2025
@rfleury The problem is not the exchange of money for value, but the single point of failure that is this exchange, as a requirement for using the software.
Dec 04, 2025
Nice writeup.
Dec 04, 2025
FOSS creates a bizarro software world where the 'higher values' they aspire to completely clash with a basic understanding of incentives.
Dec 04, 2025
Respectfully, those arguments are pure hypocrisy.
Nov 25, 2025
@valigo Interestingly, if you try to write Rust in this way, pointer provenance will cause misoptimizations that break everything.
Nov 23, 2025
@QVHenkel Now do this in three dimensions.
Nov 19, 2025
@NOTimothyLottes I haven't really done graphics in a while, but I've never heard about infinite far nor reversed z, where can I read up on it more?
Nov 18, 2025
@NOTimothyLottes Infinite far doesn’t apply to ortho, and many of editors/engines need to switch camera viewports.
Nov 18, 2025
@valigo Wouldn't this make working with arrays more difficult? Array[1] would have to be Array[sizeof(data)] etc
Nov 18, 2025
It is confusing if you aren't used to it, that is true.
Nov 18, 2025
@valigo Pointer arithmetic based on type sizes makes sense when considering aligned load/store memory operations.
Nov 18, 2025
@valigo For real I'm parsing through a binary array and trying to say "the next byte is a uint8_t, the next two bytes are a uint16_t" and the most elegant way to do it is mind-numbingly ugly pointer bullshit.
Nov 18, 2025
@valigo I had the displeasure of being exposed to Hex-Ray’s decompiler for years so I have gotten used to it, but it is annoying ye…
Nov 17, 2025
@NOTimothyLottes Many are still on OpenGLES and WebGL, which don’t properly support inverse depth due to still using a -1 to 1 clip space.
Nov 17, 2025
@NOTimothyLottes I've never had real depth precision issues in our game ports but I guess I'd better just adopt and get used to reversed infinite projection cause it's objectively better.
Nov 17, 2025
@valigo @NOTimothyLottes If this is not Timothy Lottes then who is it?
Nov 17, 2025
@valigo His style goes a bit beyond that, judging by the defines used it’s similar to some form of literate programming but with C preprocessor.
Nov 03, 2025
@its_bvisness Some days I am embarrassed that I don't have a CS degree.
Nov 02, 2025
@its_bvisness Would this be the reason that Curl has this horrible idea that uploading data (-d --data argument with @) is a fundamentally different feature than the --data-binary argument?
Nov 02, 2025
@its_bvisness I'm just a self taught game dev, so I've never seen this text vs binary thing before.
Nov 02, 2025
@its_bvisness Personally, based on my talks with friends, my problem was that, because I already understood what the difference is, I subconsciously skipped the part that was stupid and just assumed it was right lol
Nov 02, 2025
@its_bvisness Yeah that's not simplified it's just wrong
Nov 02, 2025
@its_bvisness If I may, can I ask if there is a resource or article where I could read the correct representation?
Nov 02, 2025
@its_bvisness How would you specifically (not other people replying) explain it?
Nov 02, 2025
@its_bvisness People have no idea what "abstraction" means either, apparently
Nov 02, 2025
@its_bvisness The age of mobile computing destroyed the abstractions that were natural for PC natives
Nov 02, 2025
@its_bvisness if they think this is a passable abstraction, then they are obviously bad at abstraction and therefore bad at development in the very least.
Nov 02, 2025
@its_bvisness You’re overlooking the OS
Nov 02, 2025
@its_bvisness Hoping this is a highschool students presentation.
Nov 01, 2025
@its_bvisness Too many midwits have gotten into coding.
Nov 01, 2025
@its_bvisness Or people think lying for the sake of simplification is ok, which is wrong, at all levels of education.
Nov 01, 2025
@its_bvisness I mean
Nov 01, 2025
@its_bvisness What is the actual correct explanation here
Nov 01, 2025
@its_bvisness https://x.com/HumanChauvinist/status/1984652626516914319
Nov 01, 2025
@its_bvisness Doesn’t matter.
Nov 01, 2025
@its_bvisness It’s fundamentally a mistaking the representation of a thing with the interpretation/usage of a thing.
Nov 01, 2025
@its_bvisness all files are either txt or zip, actually
Nov 01, 2025
@its_bvisness as an hs student who hasn't learned much about this kinda stuff, I assume the stupid part is that text files are really just binary files?
Nov 01, 2025
@its_bvisness > Binary designed be read by same type of computer and with same programming language as the computer that created the file
Nov 01, 2025
@its_bvisness Sounds like a lot of mechanical sympathy at the expense of biological sympathy
Nov 01, 2025
@its_bvisness lol.
Nov 01, 2025
@its_bvisness This is horrible.
Nov 01, 2025
@its_bvisness Many people do actually have religious/magical beliefs about computer science
Nov 01, 2025
@its_bvisness So, how data works? High or low voltage, node, wire, flip-flops, isn't that all (at a fundamental lvl)? One could go even lower but that enters domain of physics.
Nov 01, 2025
@its_bvisness >blatantly incorrect and misleading statement
Nov 01, 2025
@its_bvisness You’re 10000% right, but trying to be charitable….
Nov 01, 2025
@its_bvisness OP is a dumb dumb.
Nov 01, 2025
@its_bvisness I interpret this slide to be explaining, in a big-picture way, how DataOutputStream guarantees big-endian i/o for multibyte types regardless of the underlying hardware's endianness.
Nov 01, 2025
@its_bvisness
Nov 01, 2025
@tsoding I'll do both and do them both well thanks.
Oct 27, 2025
@tsoding What about architecture? ...
Oct 23, 2025
@rfleury Cool idea! I added a similar model to my language after reading this.
Oct 17, 2025
@NOTimothyLottes I watched the video and one thing that was not clear to me is why is half of the file wasted.
Oct 14, 2025
@rfleury Arenas : Memory management
Oct 13, 2025
@NOTimothyLottes no floats ever logged? or some "agreement" that it's always multiplied by 100000 or something like that? besides, interesting (low-level) ideas I really like :)
Oct 11, 2025
@NOTimothyLottes Pinning works well only if your program is the only one working.
Oct 11, 2025
@NOTimothyLottes Do you have a source from which one could learn how to achieve the equivalent flexibility by following this approach? Sometimes on gaming devices you only have a handful of threads to deal with unlike on PCs.
Oct 11, 2025
@rfleury Also interesting is the notion of persistent threads on the GPU
Oct 11, 2025
@rfleury I read your post and it reminds me a lot of how I programmed using MPI.
Oct 11, 2025
@rfleury That's a very cool way to exploit parallelism in branchy CPU code! Never seen it done that way before.
Oct 11, 2025
Imagine your code as a bustling kitchen; each recipe station runs on its own stove; by thinking multi core by default, you reshape functions into independent chefs coordinating only when necessary; this approach cuts memory traffic, boosts cache usage and turns code maintenance into composing harmonious solos rather than conducting a crowded orchestra; each program hums with parallel flair.
Oct 10, 2025
@NOTimothyLottes That’s what I do.
Oct 10, 2025
@rfleury I used to use this technique in Love2D with Lua of all places, where spawning threads is essentially running an entire separate LuaVM, sharing data using FFI types and inverting the structure like that made it very easy to parallelize code
Oct 10, 2025
@rfleury Shouldn’t single-core array summation be faster than multi-core, since summing is bottlenecked not by computation but memory fetching?
Oct 10, 2025
@rfleury I mean, it is getting hard getting a single core cpu this days.
Oct 10, 2025
@rfleury Great article (and the other previous linked therein)! I like the idea of thinking of the codepath architecture as shapes and cycles to identify opportunities for parallelism
Oct 10, 2025
@rfleury seems like SPMD and logistics logic.
Oct 10, 2025
@rfleury Is this influenced by CSP? C.A.R.
Oct 10, 2025
@rfleury With Go this is very easy
Oct 10, 2025
@rfleury A similar style is somewhat common in the Linux server world, where it is called "thread-per-core".
Oct 10, 2025
@rfleury Thanks for sharing this Ryan!
Oct 10, 2025
@rfleury My company sells stuff to make this easy.
Oct 10, 2025
@rfleury Holy shit, this is such a cool idea; I've never thought of it this way.
Oct 10, 2025
@rfleury I have not run across this interesting pattern in 20 years of gamedev.
Oct 10, 2025
@rfleury might be interesting to see an implementation of parallel execution for conditional statements
Oct 10, 2025
@rfleury that's nice but it's funny if you think people can handle any amount of coding sophistication, drive safely in the rain, or roast a chicken without hurting themselves.
Oct 10, 2025
Excellent post, I've written plenty of shaders but never thought to write CPU code in the same way.
Oct 10, 2025
@rfleury are people more commonly doing this style in game dev?
Oct 10, 2025
@rfleury Damn, this is highly illuminating.
Oct 10, 2025
@rfleury Can you say more about this "...
Oct 10, 2025
@rfleury It seems like there's some problems with load balancing in this system.
Oct 10, 2025
@rfleury Do you suggest to do it right after main, and continue throughout the entire program?
Sep 08, 2025
@CharlieMQV In a big git repo what’s the difference between ripgrep and this?I guess noone uses this to search for a string on a drive, you will most likely be in a repo when using it.
Sep 03, 2025
@NOTimothyLottes @dark1x Does BFI matter as much if you draw the two CRT fields separately to emulate interlacing? Like BFI for every other line.
Aug 29, 2025
@tsoding ...and then, stop learning frameworks and learn the language instead
Aug 28, 2025
@valigo (This is assuming you’re still keeping everything as chars and not immediately mapping into their own much smaller indexed representation.)
Aug 27, 2025
@KentoAsashima @pikuma @rygorous You could, but the information needed to construct the projection matrix in the first place includes the values of s and g that I mentioned above.
Aug 21, 2025
@CharlieMQV Is the trick here using the MFT to filter to the files of the right type faster? Used a couple of MFT-based file-finders back in my Windows times and they were zippy
Aug 21, 2025
@pikuma I think a common phenomenon I have occur to is there are a tons of ppl thinking that textbooks are their endpoint of the journey.
Aug 21, 2025
@pikuma uh so what r books 1 and 2
Aug 21, 2025
@rfleury @rfleury how do i go back and forth when navigating code using raddbg? I usually that using ctrl+ left/right or using 4th and 5th mouse button.
Aug 21, 2025
@rfleury What would that look like specifically?
Aug 20, 2025
@CharlieMQV As someone who has been using baregrep, yes please.
Aug 20, 2025
@CharlieMQV What are you using, C++, C#, Go?
Aug 20, 2025
The API is terrible.
Aug 20, 2025
@FUZxxl @JamesAnder73326 Another one here:
Aug 20, 2025
@pikuma What are your top recommendations for "1st or your 2nd book/lecture about language implementation"?
Aug 20, 2025
@pikuma Good luck telling that to vibe coders
Aug 20, 2025
@pikuma May we ask you to please make a course on how to make Assemblers, Linkers and Loaders from scratch (literally using 0s and 1s for at least the Assembler)?
Aug 20, 2025
@pikuma Nah, all of that is just fancy math for if statements and for loops
Aug 20, 2025
@pikuma Back in my day all they said was read the dragon book and all was cool.
Aug 20, 2025
@pikuma Most insane APL code I’ve ever read in my life.
Aug 20, 2025
@pikuma is c++ compiler doing this stuff?
Aug 20, 2025
@pikuma computer science sometimes feels like an ancient dark runic alchemy theory
Aug 20, 2025
@pikuma no let the children run into walls and climb over them, you needed to walk before you ran because they told you to be scared or it's hard, and it's not
Aug 20, 2025
@pikuma You should be writing a 100 line scheme implementation
Aug 20, 2025
@pikuma i made like five scheme to vm compilers before i even heard of an lvalue lol
Aug 20, 2025
@rfleury What is the benefit of having it in the OS rather than in a library?
Aug 20, 2025
@rfleury I understand it being really powerful when you know what term to search for, but if it's not known to you, having dropdown menus is still useful to find out all the functionality of that software, e.g.
Aug 20, 2025
@rfleury I think we all can agree that the current OS vendors cannot be trusted with these decisions
Aug 20, 2025
@rfleury for those unable to view the video, explain?
Aug 20, 2025
@rfleury Man, hard agree! Then almost everything would become optionally keyboard-centric.
Aug 20, 2025
@rfleury Problem is *you* have to design the operating system or the command palette will suck
Aug 19, 2025
@CharlieMQV https://github.com/dfs-minded/indexer-plus-plus
Aug 19, 2025
@CharlieMQV https://sourceforge.net/projects/syncdrome/
Aug 19, 2025
@CharlieMQV Does it handle RegEx as well?
Aug 19, 2025
@CharlieMQV Maybe a dumb question, but how does it compare to whatever is used inside notepad++?
Aug 19, 2025
@CharlieMQV I just built an app called DiskJockeyService.
Aug 19, 2025
@CharlieMQV How does the performance compare to UltraSearch?
Aug 19, 2025
@CharlieMQV Have you tried using grep in WSL on the windows partitions?
Aug 19, 2025
@CharlieMQV The reason the Windows search is slow because it searches not only file names, but file content too.
Aug 19, 2025
@CharlieMQV Awesome.
Aug 19, 2025
@CharlieMQV Is it better than DTsearch?
Aug 19, 2025
@CharlieMQV Win server /NTFS network & NAS file systems compatibility?
Aug 19, 2025
@CharlieMQV It is kinda shocking how fast CPUs can churn through data when they’re not waiting.
Aug 19, 2025
@CharlieMQV I‘m only occasionally onWindows, but I would be happy to use your tool.
Aug 19, 2025
@CharlieMQV I'm using UltraSearch for name-based searches, and FileLocator Pro Lite for content-based searches
Aug 19, 2025
@CharlieMQV Impressive: kernel or user space?
Aug 19, 2025
@CharlieMQV I'm astonished that nobody here knows the difference between grep and normal file search.
Aug 19, 2025
@CharlieMQV Cool project, but imo searching for file names is trivial and there are tons of existing tools for it.
Aug 19, 2025
@CharlieMQV Every windows dev should know about search everything
Aug 19, 2025
@CharlieMQV Show us the resource Usage if you could
Aug 19, 2025
@CharlieMQV Would you add support dor DevDrive (ReFS)?
Aug 19, 2025
@CharlieMQV Reminds me of Wizfile.
Aug 19, 2025
@CharlieMQV What’s the language?
Aug 19, 2025
@CharlieMQV Want!
Aug 19, 2025
@CharlieMQV Total Commander has good search.
Aug 19, 2025
@CharlieMQV @jamsoftware how Treesize make its search?
Aug 19, 2025
@CharlieMQV Been using Ultrasearch for years.
Aug 19, 2025
@CharlieMQV How well does VS 2022's search do in this test (once cached)?
Aug 19, 2025
@CharlieMQV hmmm.
Aug 19, 2025
@CharlieMQV Do you think it is possible to replace the DLL that windows explorer uses with your code ?
Aug 19, 2025
@CharlieMQV that's nice, there's no win install that I spend more than an hour that I don't install everything on it to do proper search.
Aug 19, 2025
@CharlieMQV Parses the raw NTFS? Installs a IO driver or the win32 apis have a mode? I just have not heard of apps other than drivers looking at "raw" NTFS.
Aug 19, 2025
@CharlieMQV Is this a similar technique to what UltraSearch does?
Aug 19, 2025
@CharlieMQV It looks impressive.
Aug 19, 2025
@CharlieMQV Baregrep is struggling.
Aug 19, 2025
@CharlieMQV this could be a nice tool.
Aug 19, 2025
@CharlieMQV Does it search regular expressions? If so what RE engine you use?
Aug 19, 2025
@CharlieMQV So whats the search speed in terms of of MiB/s? And what's the read speed ob your disk (the baseline)?
Aug 19, 2025
@CharlieMQV How does this software avoid race conditions with raw disk access when the OS might be writing changes to disk at the same time? Is the search best effort and may miss some matches if you're unlucky?
Aug 19, 2025
@CharlieMQV i'm working on exact same project with extra steps.
Aug 19, 2025
@CharlieMQV Wait how do you read raw data on disk like this ? Do you have a Windows driver or something like this ?
Aug 19, 2025
@CharlieMQV Like ultra search (jam software) does.
Aug 19, 2025
@CharlieMQV I am using Everything for filename search, and Agent Ransack for content search.
Aug 19, 2025
@Jonathan_Blow I feel like it's almost screenshot Saturday
Aug 19, 2025
@pikuma I find it ironic when academics write about how to make a programming language and make it with their own language that nobody else understands.
Aug 19, 2025
@pikuma I agree, and this notation comes in handy in a paper where you have space restrictions.
Aug 19, 2025
@pikuma I guess there’s a reason why most beginner compiler tutorials implement dynamic type languages…
Aug 19, 2025
My conclusion in college was that this was all a weird farce to satisfy certain academics, because what you end up doing here is writing a program that is the compiler, except in a fake low-powered programming language that doesn’t even run.
Aug 19, 2025
@pikuma At 15 I was doing this sort of stuff like "if the word is this keyword then do this" and getting all the hellish consequences out of it.
Aug 19, 2025
@rfleury Both is good
Aug 19, 2025
@rfleury I remember as a kid using AutoCAD for the first time and thinking the command line interface was great, not needing to wade through drop-down menus.
Aug 19, 2025
@rfleury MacOS is slowly taking spotlight into that general direction
Aug 19, 2025
@rfleury Would you really want to use an OS-provided palette over the one you've rolled yourself, though - even in the improbable scenario that MS et al.
Aug 19, 2025
@rfleury What is this editor?
Aug 19, 2025
@rfleury It would be amazing if I could see (and use) such an operating system in my lifetime.
Aug 19, 2025
@tsoding what's the different between learning language and learning programming can you explain??
Aug 18, 2025
@CharlieMQV Make it replace start button search with this
Aug 18, 2025
@CharlieMQV You have my preorder.
Aug 18, 2025
@CharlieMQV Is there regex support? Would be a more adequate comparison vs ripgrep
Aug 18, 2025
@CharlieMQV Have you seen https://github.com/ggreer/the_silver_searcher ? It's exceptionally fast on linux, not tried the windows build.
Aug 18, 2025
@CharlieMQV Hey @bunjavascript could this approach improve on file reading performance in Bun on Windows?
Aug 15, 2025
@Jonathan_Blow I like how people are obsessed with "minimal" APIs, libraries and game engine's.
Aug 15, 2025
@Jonathan_Blow for most cases it comes down to UI needs.
Aug 15, 2025
I still have flashbacks to implementing a CEF browser (Chromium based) and having to deal with the absolute horror that their input wrappers are.
Aug 14, 2025
@Jonathan_Blow are you talking about SDL here or the web browser wrapper on top of SDL?
Aug 14, 2025
@Jonathan_Blow How bad can it be?
Aug 14, 2025
@vkrajacic @CaptainKraft Am i the only one who thinks this is terrible? Its incredibly confusing to read and you cant see what parameters you miss, the header file is a lot more complex to read too.
Aug 14, 2025
@vkrajacic instantly rewriting everything
Aug 13, 2025
@vkrajacic C++ functor method
Aug 13, 2025
@vkrajacic This is soo good, I did it in Typescript as well and my life is easier now........
Aug 13, 2025
@vkrajacic really cool, but this doesn't mean c is a good or nice language in modern standards.
Aug 10, 2025
@NOTimothyLottes Real-time PT is the future (present in many games already) and I think NV would have the advantage in the Tflop/s/$ over AMD in PT performance.
Aug 10, 2025
@NOTimothyLottes Yeah.
Aug 10, 2025
@NOTimothyLottes Me trying to figure out if you're talking about cash or cache...
Aug 10, 2025
@NOTimothyLottes Are the cost numbers adjusted for inflation?
Aug 10, 2025
@NOTimothyLottes I mean, on the Nvidia side you can clearly see the improvement this gen in Gb/s/$, and you're not even adjusting with inflation which is quite unfair.
Aug 08, 2025
@NOTimothyLottes so you're preallocating every type of descriptor to a max count and aliasing them with various qualifiers/attributes? all that in a single memory layout?
Aug 02, 2025
@onatt0 @EskilSteenberg @olson_dan So far the plan is to have the data read/write from the GPU, but still use the CPU to do the SPIR-V generation from said data.
Aug 02, 2025
@NOTimothyLottes Really hope you do this! Find your posts so interesting but usually fly over my head.
Aug 01, 2025
@NOTimothyLottes What's the top "something else"? I've been out of the space for a while.
Aug 01, 2025
@NOTimothyLottes I'm gonna start pretending I understood everything you said
Aug 01, 2025
@NOTimothyLottes It doesn't really matter what language you call Vulkan from, the pain is all in the API...
Aug 01, 2025
@NOTimothyLottes I know someone who'd be excited @opdroid1234
Aug 01, 2025
elaborate on the "CART"-style memory model?
Aug 01, 2025
@NOTimothyLottes Sounds super interesting!
Aug 01, 2025
@NOTimothyLottes Looking forward to it, what do I bookmark?
Jul 31, 2025
@NOTimothyLottes SPIR-V.
Jul 31, 2025
@NOTimothyLottes Assembly isn't hard, it's just platform specific, which makes it tedious.
Jul 31, 2025
@NOTimothyLottes It was never hard, just tedious.
Jul 31, 2025
@NOTimothyLottes I have been writing assembly for almost 40 years.
Jul 31, 2025
@NOTimothyLottes Unrelated, but I would also love a look at your CRTs and how you use them in everyday stuff.
Jul 31, 2025
@NOTimothyLottes Given I've only done ASM on Amiga with Devpac, I guess it's probably a limited take, but I enjoyed it and didn't find it harder than say something like C, mostly because the problems I solved back then were 2D domain and the hardware was pretty simple...
Jul 31, 2025
@NOTimothyLottes I've been doing assembly a bit in D with the inline assembler and it's very fun to the point where it's too distracting for me, I don't really get why people are so averse to it generally.
Jul 31, 2025
@NOTimothyLottes A lot of people who claim assembly is hard just never did any themselves.
Jul 31, 2025
@NOTimothyLottes I’m learning assembly in my spare time
Jul 31, 2025
@NOTimothyLottes There are a lot of "watch me write this app in assembly" yt videos
Jul 31, 2025
@NOTimothyLottes If you're got a blank `canvas` go for it.
Jul 31, 2025
@NOTimothyLottes I'm still doing assembly as hobby :) ( 68k assembly, x64 assembly is not as fun to write).
Jul 31, 2025
@NOTimothyLottes i agree, if one is ok with 'bottom up' thinking.
Jul 31, 2025
@NOTimothyLottes I'm staying maybe for Vulkan, depending on how manageable it gets to me.
Jul 31, 2025
@NOTimothyLottes I just wish the win32 API was better designed.
Jul 31, 2025
@NOTimothyLottes Would be very interested in it! Also on your Forth inspired languages and the whole mental approach to simplify problem solving with efficiency in mind.
Jul 31, 2025
@NOTimothyLottes Is it already april’s fools again?
Jul 31, 2025
@NOTimothyLottes Assembly isn't hard, it's tedious.
Jul 30, 2025
@iquilezles I suspect the reason for the poor advice stems from the beginning of programmable shaders on mobile.
Jul 26, 2025
@nicbarkeragain If you're handling integers, just use a full bitmask and use boolean AND.
Jul 23, 2025
@NOTimothyLottes Where does the restart number come from? I assume this is how many times you exited the code and started again automatically using your batch script?
Jul 23, 2025
@nicbarkeragain People have been whipped for less than this.
Jul 23, 2025
@nicbarkeragain Seems like the problem is that both options are badly written and it's a matter of luck whether the compiler optimises it or not.
Jul 23, 2025
@nicbarkeragain Ternary operator in openmp GPU code is along the same lines.
Jul 23, 2025
@nicbarkeragain I love using arrays as jump tables for operations.
Jul 23, 2025
@nicbarkeragain remind me of rust
Jul 23, 2025
@nicbarkeragain This is what Apple does with the NPU and CoreML, isn’t it? Compiling the entire inference process into a single path, like the final boss of branchless programming?
Jul 23, 2025
The key here is that CPUs mostly only have two options:
Jul 23, 2025
@nicbarkeragain Google TCO .
Jul 23, 2025
@nicbarkeragain I still wonder if you can make compiler to auto-non-branchify code? Or transpiler.
Jul 23, 2025
@nicbarkeragain Close enough, the for loop is a branch, however the code can be compiled so that it has a branch that is likely to be taken.
Jul 23, 2025
@nicbarkeragain İt's pretty hard to tell when removing a branch is actually going to help your performance.
Jul 22, 2025
@nicbarkeragain I sometimes use that principle in SQL so there's only one if statement instead of like 10
Jul 22, 2025
@nicbarkeragain What would be an actual real life use case?
Jul 22, 2025
@nicbarkeragain It’s a beautiful thing but also pointless and unreadable unless in an environment that can’t afford an if statement.
Jul 22, 2025
@nicbarkeragain I thought this kind of masking was standard regardless of branch clobbering.
Jul 22, 2025
@nicbarkeragain Cool.
Jul 22, 2025
@nicbarkeragain It's cool, but unless you unroll the loop fully, it's still branching.
Jul 22, 2025
@nicbarkeragain One additional read instead of using the result of "==".
Jul 22, 2025
@nicbarkeragain of course, it's important to be careful.
Jul 22, 2025
@nicbarkeragain ```[<int>] = <val>```
Jul 22, 2025
@nicbarkeragain That's cool, but also compilers know how to do it as well, sometimes the assembly it generates when it spots a branchless version by itself is better then the one generated by compiling your implementation.
Jul 22, 2025
@nicbarkeragain I don't think you even need a multiplication.
Jul 22, 2025
@nicbarkeragain What colour scheme is that btw?
Jul 22, 2025
@nicbarkeragain If you are doing a for loop you are still branching
Jul 22, 2025
A really long time ago, programming a simple game in basic on a 6502 based Commodore PET, I changed the logic from:
Jul 22, 2025
@nicbarkeragain Why should you do something that your compiler do for you?
Jul 22, 2025
@nicbarkeragain Why can't compilers implement this optimization themselves? At least in this example, it seems like a fairly mechanical transformation
Jul 22, 2025
i'm branch-free by default.
Jul 22, 2025
@nicbarkeragain Wait I am cooked.
Jul 22, 2025
@nicbarkeragain I think it's a cool field, like only using stack memory (e.g.
Jul 22, 2025
@nicbarkeragain It's good inside hot loops and shaders.
Jul 22, 2025
@nicbarkeragain A more compact example is using a bitmask integer.
Jul 22, 2025
@nicbarkeragain It's also a key component in developing good implementations of cryptography to prevent side channel and timing attacks.
Jul 22, 2025
@nicbarkeragain Shouldn't a good optimizer already do this?
Jul 22, 2025
@nicbarkeragain It's funny when some people say "Branches are essentially free these days" Yeah, not so much :)
Jul 22, 2025
@nicbarkeragain Godbolt example of branchless vs branchfull if-statement
Jul 22, 2025
@nicbarkeragain So...
Jul 22, 2025
@nicbarkeragain Looks pretty useless to me in this case.
Jul 22, 2025
@nicbarkeragain Here is a real-life example (excuse my French):
Jul 22, 2025
@nicbarkeragain Clang failed to recognize it should use a select op in the IR and using a ternary helped.
Jul 22, 2025
@nicbarkeragain I don't mind a useful if statement but when I see an else I'm ripping that crap out.
Jul 22, 2025
@nicbarkeragain I have no idea if it improves performance (in the grand scheme of a legacy canvas app) but I use tricks like this when rendering e.g.
Jul 22, 2025
@nicbarkeragain It can be done by tools like Terser or by compiler if they are really equal
Jul 22, 2025
@nicbarkeragain Australia represent!
Jul 22, 2025
@nicbarkeragain You nerd-sniped me to actually try the sth out (the Creel's example) .
Jul 22, 2025
@nicbarkeragain You mean functional programming?
Jul 22, 2025
@nicbarkeragain What is the measured performance impact?
Jul 22, 2025
@nicbarkeragain Is it for performance reasons? I've only seen it in security contexts, e.g.
Jul 22, 2025
@nicbarkeragain 10x better? I thought branch prediction wouldn't have SO much weight, crazy
Jul 22, 2025
@nicbarkeragain Aka Erlang, Prolog etc.
Jul 22, 2025
@nicbarkeragain I'd usually use & or >> but same idea
Jul 22, 2025
@nicbarkeragain It also matters how random the data is.
Jul 22, 2025
@nicbarkeragain Gross just use an if.
Jul 22, 2025
@nicbarkeragain I’d also maintain state machines are a kind of branchless programming.
Jul 22, 2025
@nicbarkeragain Great post! Which Color scheme / font is used in the picture?
Jul 22, 2025
@nicbarkeragain * 1 if x else 0
Jul 22, 2025
@nicbarkeragain this will be slower unless your compiler is really bad.
Jul 22, 2025
@nicbarkeragain Compilers already inline them.
Jul 22, 2025
@nicbarkeragain What kind of applications is this practically useful for? Shaders / GPU stuff? Ultra low latency fintech stuff? Embedded?
Jul 22, 2025
@nicbarkeragain you can find a lot of examples of this method in assembly books.
Jul 19, 2025
@NOTimothyLottes What about when each stage depends upon the results of the previous stage?
Jul 19, 2025
@NOTimothyLottes Im pretty sure you cant do this properly for the physics workload, because it would mess with the convergence of the optimizer.
Jul 19, 2025
@NOTimothyLottes i remember the GPU scheduler ruining the implementation of many clever hardware features
Jul 19, 2025
@NOTimothyLottes Is that possible when you have a linear dependency chain with no independent work? I can't think of anything other thanks splitting up the workload even more, which doesn't sound great
Jul 19, 2025
@VictorTaelin Technology's relentless march outpaces biology's crawl.
Jul 16, 2025
@nicbarkeragain What popped into my head is languages like Uiua
Jul 16, 2025
@nicbarkeragain But is it really that hard to use though? Or what scenario do you mean? If we are to make use of SIMD we will be doing operations on collections of numbers.
Jul 16, 2025
@nicbarkeragain Hmmn.
Jul 16, 2025
@nicbarkeragain I’ve been wondering about this for over twenty years, but never found anything I felt was truly accessible.
Jul 16, 2025
@nicbarkeragain Honestly it will definitely be a random idea someone has at 3 am and everyone will just go "how did we not think about that earlier?" and then a revolution begins
Jul 16, 2025
@tsoding i was struggling with same thing for such a long time, and was just half way through in learning html css, js, but now just gonna study about concepts and focus on dsa and build projects.
Jul 15, 2025
@nicbarkeragain The answer exists.
Jul 15, 2025
@nicbarkeragain Reduced instruction sets.
Jul 15, 2025
@nicbarkeragain ISPC
Jul 15, 2025
@nicbarkeragain Mojo lang has SIMD aware data types and makes it a first class citizen.
Jul 15, 2025
My gamedev head just wants a sort of game mechanic lego for conveying a simd operation frame.
Jul 15, 2025
@nicbarkeragain I have hope that this is true.
Jul 15, 2025
@nicbarkeragain FFmpeg thinks otherwise.
Jul 15, 2025
@nicbarkeragain Have you ever studied APL?
Jul 15, 2025
@nicbarkeragain 128-bit seems to be pretty widespread, so it might be a good baseline? even in armv7 cores, not sure about risc-v and powerpc though.
Jul 15, 2025
@nicbarkeragain C# makes it fairly straightforward.
Jul 15, 2025
@nicbarkeragain Intel's ISPC
Jul 15, 2025
@nicbarkeragain Llm baked into gcc who’s only job is making things simd where possible.
Jul 15, 2025
@nicbarkeragain Perhaps something like ISPC / how we author shaders in GPU could help ?
Jul 15, 2025
@nicbarkeragain Relational model + columnar data.
Jul 15, 2025
@nicbarkeragain languages that have comptime also have wonderful support for SIMD: mojo and zig
Jul 15, 2025
@nicbarkeragain Its called array programming.
Jul 15, 2025
@nicbarkeragain Maybe Futhark, or array programming.
Jul 15, 2025
@nicbarkeragain https://github.com/HigherOrderCO/Bend
Jul 15, 2025
@nicbarkeragain It hasn't been stabilized yet but Rust's portable SIMD was pretty easy to work with https://doc.rust-lang.org/std/simd/index.html
Jul 15, 2025
@nicbarkeragain more arrays
Jul 15, 2025
@nicbarkeragain openmp does good enough job with compiler flags like march=avx2, i think the focus should be making compilers smarter, for the cases where parallelism is the primary concern one should use cuda
Jul 15, 2025
@nicbarkeragain I think ISPC more or less solved this and in a C-compatible way.
Jul 15, 2025
@nicbarkeragain Might be an oversimplification but I think the focus might need to be aimed more at grouping data efficiently.
Jul 15, 2025
@nicbarkeragain So, FORTRAN?
Jul 15, 2025
@nicbarkeragain the industry is trying to do that with vector-length-agnostic architectures, like SVE, RVV, and others.
Jul 15, 2025
@nicbarkeragain The "average programmer" you mentioned uses OOP and other things that make their programs so slower and fatter that SIMD would make literally zero impact within that scale of inefficiency through bad programming practices.
Jul 15, 2025
@nicbarkeragain @Modular Mojo has a first class SIMD support AFAIK but I've never used it https://docs.modular.com/mojo/stdlib/builtin/simd/SIMD#implemented-traits
Jul 15, 2025
@nicbarkeragain I agree, there is something weird with SIMD accessibility today, looks like there is room for innovation
Jul 15, 2025
@nicbarkeragain I think we need a system visualizer where devs can view their implementation running through the processor/gpus/memory/network.
Jul 15, 2025
@nicbarkeragain have you spent time writing SIMD algorithms for general-purpose tasks? it does not seem possible to make this stuff accessible, because the set of available doodads and their costs influences your algorithm design
Jul 15, 2025
@nicbarkeragain have you looked at Odin’s SIMD?
Jul 15, 2025
@nicbarkeragain Whats wrong with using inline ASM?
Jul 15, 2025
@nicbarkeragain Just enable arithmetic operations on fixed sized arrays and optimise this to use SIMD where possible
Jul 15, 2025
@nicbarkeragain Have you met the average programmer?
Jul 15, 2025
@nicbarkeragain
Jul 10, 2025
@tsoding Just study automata & theoretical machines
Jul 02, 2025
@cmuratori At a fork in the road I choose my own path.
Jul 01, 2025
@cmuratori How does one pronounce hoare ? The way I am saying it says car ____
Jun 24, 2025
@tsoding @tsoding and @Jonathan_Blow start building your own language.
Jun 22, 2025
@VictorTaelin Optimal processors are cosmic dreams, tangled in math's intricate dance.
Jun 14, 2025
@tsoding Or stop creating new toy languages!
Jun 13, 2025
The general opinion on Vulkan is that it is an incomprehensible mess of different GPU specific calls, which are too domain specific to give any hint to the programmer.
Jun 01, 2025
@iquilezles @james_ay_em_dee Read about this from ‘GPU Gems 2’, ‘Chapter 34.
May 25, 2025
@EricLengyel I read your Foundation of Game Engine Development Volume 1 and Volume 2.
May 24, 2025
@EricLengyel Does this mean Geometric Algebra is metric independent?
May 24, 2025
@Jonathan_Blow Making your own tools vs learning how to use someone else’s tool, usually takes the same amount of time, so it’s almost always better to just write your own tools.
May 22, 2025
@tsoding That’s key! I am quite happy sticking with C and working on new projects instead of pouring months into C++ or Rust.
May 21, 2025
@Jonathan_Blow It's really bad and getting much worse.
May 21, 2025
@Jonathan_Blow @TheGingerBill Another thing that contributes to resistance to writing your own is the constant fear mongering from other programmers on the internet that you can’t make it as good as the library.
May 21, 2025
@Jonathan_Blow How do you see these principles apply for languages with runtimes and built-in data structures with syntactic sugar that are heavily optimized at compile and runtime? Like JavaScript and C#.
May 20, 2025
@Jonathan_Blow Also you are less likely to get stuck in the "we have to release a patch but they require the current platform SDK which requires the newest engine SDK - of which we have 5 plugins that don't support that version yet" :|
May 20, 2025
@Jonathan_Blow The paragraph about spam really hits hard.
May 20, 2025
@Jonathan_Blow You should be friends with time-based media conservators, aka me.
May 20, 2025
I've said this for a long time: you can either pull in dependencies willy-nilly and start off with a rapid pace of development which gets slower and slower as time goes by and ultimately you find you can't do certain things at all, or you can build your own libraries which takes time up front, but as time goes by your productivity keeps growing exponentially, and you can do anything you want because you have total control.
May 20, 2025
@Jonathan_Blow This is the epitome of a slippery-slope argument.
May 20, 2025
@Jonathan_Blow And if your OS provided the major dependencies and you eliminated the minor dependencies, welcome to the 60s.
May 20, 2025
@Jonathan_Blow The paragraph about limiting the contact surface for major deps reminded me of C/C++ header/source split compilation model.
May 19, 2025
@Jonathan_Blow A practical example is burgerlib, used over an ~30 year timespan:
May 19, 2025
@Jonathan_Blow I like the discussion around dependencies and them making builds fail(among other things).
May 19, 2025
@Jonathan_Blow Wait, you haven't taken the signed-distance-function pill?
May 19, 2025
@Jonathan_Blow @ID_AA_Carmack Love your post! Interestingly, almost all of it also applies to management consultants.
May 19, 2025
@Jonathan_Blow finally we agree on something, programmers should be careful with dependencies.
May 19, 2025
@Jonathan_Blow I was trying to explain this to my colleagues, but they explicitly insist on adding more dependencies
May 19, 2025
@Jonathan_Blow I once started a project on XNA but it got discontinued, so I switched to OpenTK but it was so buggy that I found myself reimplementing all the features one by one - inputs, sound, graphics etc - until I had my own framework built on top of Win32 & OpenGL.
May 19, 2025
@Jonathan_Blow I don't know how making things from scratch became so taboo, this term is like a boogeyman in the broad software industry.
May 19, 2025
@Jonathan_Blow Do you regard standard library as external dependency?
May 19, 2025
@Jonathan_Blow I frequently find that making my own small tool for something simple is far cheaper in the long run anyway, because having to figure out somebody else’s bloated crap and work with it over and over again is a heavy burden.
May 19, 2025
@Jonathan_Blow Isn't the amazing capability that drove this industry forward, that you do'nt need to constantly reinvent the wheel?
May 19, 2025
@Jonathan_Blow The warning against hostile APIs that you mention Apple and Microsoft use to achieve lock-in also applies to companies with too much proprietary tech with regard to the careers of their employees
May 19, 2025
@Jonathan_Blow I've had folks ask me why I like to build everything myself.
May 19, 2025
@Jonathan_Blow In the web world there's a common wisdom against using "thunk" files, where you centralize the interface towards an external library.
May 13, 2025
@tsoding hey quick questio, how do you program in multiple languages without forgetting everything.
May 12, 2025
@hsn8086 最看不懂的一集
May 12, 2025
@hsn8086 使我的片假名入门
May 12, 2025
@hsn8086 程序員說他已經招了
May 11, 2025
@hsn8086 这代码像是写FizzBuzz，但日文变量名（アールイグザープル、ショーアト）和注释花里胡哨，逻辑却错得离谱：没检查3和5的倍数，ショーアト未定义，语法漏洞百出。😅
May 11, 2025
@hsn8086 Cpp，第一行#include <iostream>
May 11, 2025
@hsn8086 看不懂的c
May 11, 2025
@hsn8086 還好日文跟C++都有學一點
May 11, 2025
@hsn8086
May 11, 2025
@hsn8086 看见输出箭头就知道是c++了
May 11, 2025
@hsn8086 し语言
May 11, 2025
@hsn8086 c？
May 11, 2025
@hsn8086 想到了某部整个魔咒体系全是编程语言的漫画系列）
May 11, 2025
@hsn8086 能看懂是不是说明没救了
May 11, 2025
@hsn8086 看不懂但是知道是 C++
May 11, 2025
@hsn8086 为什么全是片假名
May 11, 2025
@hsn8086 日版易语言
May 11, 2025
@hsn8086 return 0？？？
May 11, 2025
@hsn8086 把日本杀得片假不留
May 11, 2025
@hsn8086 日编C++
May 11, 2025
@hsn8086 肯定是c啊因为只有c语言的导入是#
May 11, 2025
@hsn8086 日，竟然看懂了。。。
May 11, 2025
@hsn8086 易语言
May 11, 2025
@hsn8086 C++
May 11, 2025
@hsn8086 C++但是日文版😃
May 11, 2025
@hsn8086 写满了拼音的英语书🤣
May 11, 2025
@hsn8086 居然看懂了🤦‍♂️
May 11, 2025
@hsn8086 这不是最潮最 in 的外来语 only k++ 吗
May 10, 2025
@hsn8086 隐约看到一个return 0
May 10, 2025
@hsn8086 Java
May 10, 2025
@hsn8086 那我问问你，能跑吗？
May 10, 2025
@hsn8086 那很片假名地狱了🫠
May 10, 2025
@hsn8086 #include <bits/stdc++.h>
May 10, 2025
@hsn8086 include <iostream>
May 10, 2025
@hsn8086 全都是片假名这谁看得懂啊.jpg
May 10, 2025
@hsn8086 片假名请滚出日语
May 10, 2025
@hsn8086 每个空格我都得切换一下全半角输入对吧
May 10, 2025
@hsn8086 シプラスプラスですね
May 10, 2025
@hsn8086 获得道具 S级描述：“片假名书写的一页记载了神秘未知力量的远古魔法导书”
May 10, 2025
@hsn8086 密码的，老子不识字
May 10, 2025
@hsn8086 第一行做不到，其他都可以，可以写个脚本先用sed处理然后交给编译器，最后希望日本所有程序都能这么写。
May 08, 2025
@iquilezles As a shader newb, this is helpful.
May 01, 2025
@rfleury individual malloc/free is a common C practice and is the fair comparison; group allocations are not the norm in most programs especially in the hand-off ownership situations where unique_ptr would apply.
May 01, 2025
@rfleury Look at any large codebase and you'll see a bunch of new/delete calls.
May 01, 2025
@rfleury Do you have any example of this?
May 01, 2025
@rfleury Well said.
Apr 30, 2025
@NOTimothyLottes holy truthnuke - and people think C is the optimal state of possible runtimes when it's a very limited runtime to have state mixed call/data-stacks
Apr 30, 2025
@NOTimothyLottes IMO code compilation is inherently sequential+ "execution contextual", dynamic logic execution to get the binary as the essence vs a static lang
Apr 30, 2025
@NOTimothyLottes simply brilliant!
Apr 30, 2025
@rfleury Saw a Casey Muratori video about people who think in single unit lifetimes vs group allocations etc yesterday.
Apr 30, 2025
@rfleury There is exactly zero pain in debugging unique_ptr variables these days.
Apr 30, 2025
@rfleury I miss the point you are trying to make
Apr 30, 2025
@rfleury This isn't such a strong argument considering there's a "leak" with the regular call to `new`.
Apr 30, 2025
@rfleury Too much words, but unique_ptr is*really* zero cost.
Apr 30, 2025
@rfleury Generated assembly or other supposedly better ‘hand-written’ options for memory management are IMO just distractions when talking about unique_ptr.
Apr 30, 2025
@rfleury I bet std comitee wrote thousands of lines for this
Apr 30, 2025
@rfleury I'd use C more if attribute(__cleanup__) was standard and a little less cumbersome.
Apr 30, 2025
My experience has been different.
Apr 30, 2025
@rfleury Also people will say this garbage and then show you the assembly in -O2.
Apr 22, 2025
@EricLengyel That moment when we witness an obscure piece of trivia being born in real time.
Apr 16, 2025
@NOTimothyLottes Could a shader compiler not do this? i.e.
Apr 16, 2025
@NOTimothyLottes I would be interested to see a concrete example of this
Apr 16, 2025
@NOTimothyLottes branching, cache locality, and memory handling are key 🔥
Apr 16, 2025
@NOTimothyLottes I'd add:
Apr 02, 2025
@Jonathan_Blow If you have your own mixer, what’s wrong with plain waveOut-API?
Apr 02, 2025
@Jonathan_Blow I use WASAPI, it's not bad for low level control to build a sound engine on it.
Apr 02, 2025
@Jonathan_Blow I had to go to XAudio2 just recently, but I have no decent sample code yet.
Apr 02, 2025
@Jonathan_Blow @KodiTV uses WASAPI and DirectSound, maybe some helpful code there
Apr 02, 2025
@Jonathan_Blow Just checked and my clean install from 3 months ago has `C:/system32/dsound.dll` and it appears to be PATHed correctly.
Apr 01, 2025
@Jonathan_Blow Somehow, whenever I look for ways to do something one Windows I'm looking at Wine source code.
Apr 01, 2025
@Jonathan_Blow MME will still be around when Microsoft invents and abandons it’s next multimedia baby.
Apr 01, 2025
@Jonathan_Blow Casey and Martins like Wasapi
Apr 01, 2025
@Jonathan_Blow We also have our own mixer.
Apr 01, 2025
@Jonathan_Blow I’m probably the outlier here, but why not just use waveOut…? It may be deprecated, but it’s definitely not going away anytime soon.
Apr 01, 2025
@Jonathan_Blow Xaudio is pretty simple, but has high latency.
Apr 01, 2025
@Jonathan_Blow i'm using wasapi, very similar to dx from what i remember.
Apr 01, 2025
@Jonathan_Blow There's an unfortunate design decision in XAudio2, where if an audio device is removed (you unplug your headphones), you have to free all resources and reinitialize the API.
Apr 01, 2025
I use waveOutOpen()/waveOutWrite() family, from winmm.dll.
Apr 01, 2025
@Jonathan_Blow Avoid Microsoft Media Foundation!
Mar 31, 2025
@Jonathan_Blow What do you mean in a non-findable way anymore ? Is it in a custom path instead of the classic System32 / SysWOW64 ?
Mar 31, 2025
@Jonathan_Blow I used WASAPI recently (first time), it was every bit the crapola I expected it to be, but no worse, and I would use it again because it's there
Mar 31, 2025
@Jonathan_Blow Have you looked into SoLoud?
Mar 31, 2025
@Jonathan_Blow SDL has audio output functionality, seems to work pretty well from what I can tell.
Mar 31, 2025
@Jonathan_Blow OpenAL?
Mar 31, 2025
I asked Grok for you: For XAudio2, Microsoft’s got decent sample code in their docs—check out the "XAudio2 Basic Audio" sample (http://learn.microsoft.com/en-us/windows/win32/xaudio2/xaudio2-sample-programs).
Mar 28, 2025
@SebAaltonen Any tips or existing solutions on achieving something similar in Unity? (in terms of indoor lighting)
Mar 22, 2025
@JohannesVuorine Looks soooo good for mobile, great work HH devs!
Mar 22, 2025
@JohannesVuorine This is so cute!
Mar 22, 2025
@JohannesVuorine I love creating games.
Mar 22, 2025
MAAN.
Mar 22, 2025
@JohannesVuorine I like the art style
Mar 21, 2025
@EricLengyel Are these books about programming your own game engine?
Mar 20, 2025
@EricLengyel which should i start reading first?
Mar 20, 2025
@EricLengyel The covers look bootlegged, idk if that makes sense
Mar 20, 2025
@EricLengyel Wait… where that I didn’t see it?
Mar 20, 2025
@EricLengyel Do they also have the copy cats?
Mar 20, 2025
@EricLengyel Eye catcher : The Playful Undead and Video Games: Critical Analyses of Zombies and Gameplay😇😋
Mar 20, 2025
@EricLengyel wth how did you get a ticket
Mar 20, 2025
@EricLengyel wow nice, classics no doubt.
Mar 20, 2025
@EricLengyel
Mar 19, 2025
@EricLengyel Very nice, Eric! I need to order some copies for myself.
Mar 19, 2025
@EricLengyel Where I can buy digital copies?
Mar 19, 2025
@EricLengyel I would buy this book just because of the cover
Mar 19, 2025
@EricLengyel Huzzah!!! another big pile of books to add to my library 😍
Mar 19, 2025
@EricLengyel How many hours poured to write one ? Out of curiosity ? From the first letter typed on the keyboard to "ok i am done" ?
Mar 19, 2025
@EricLengyel I want them all 🥹😅😁
Mar 19, 2025
@EricLengyel Love your books 👍
Mar 19, 2025
@EricLengyel 3.
Mar 19, 2025
@EricLengyel 1.
Mar 19, 2025
@EricLengyel It must be thrilling for you to see it! Huge congratulations.
Mar 19, 2025
@EricLengyel Edge of the table could use some antialiasing
Mar 19, 2025
@EricLengyel 1 & 2 Sitting on my Amazon wishlist.
Mar 19, 2025
@EricLengyel Jeez, I want all of these🤩🫣
Mar 19, 2025
@EricLengyel What happened to the 3rd book?
Mar 19, 2025
@EricLengyel Are you self publishing? 👀
Mar 08, 2025
@SebAaltonen Actually this is a super important question IMO.
Mar 06, 2025
@EricLengyel Especially that [honest] authors hate being not-original / too close from something that already exist.
Mar 05, 2025
@EricLengyel Maybe make this a strategy for your next book titles, Eric:
Mar 05, 2025
@EricLengyel Probably the name was chosen by Packt.
Feb 26, 2025
@Jonathan_Blow @n00buntu @HolgersenTobias @levelsio @simeonkerkola @GolerGkA This whole conversation is going sideway, but I totally agree with @Jonathan_Blow .
Feb 26, 2025
@Jonathan_Blow @n00buntu @HolgersenTobias @levelsio @simeonkerkola @GolerGkA and that’s not even cheat prevention, dead reckoning rollbacks, FP precision loss away from origin, and client versioning.
Feb 25, 2025
All good stuff.
Feb 25, 2025
@Jonathan_Blow @n00buntu @HolgersenTobias @levelsio @simeonkerkola @GolerGkA I was really hoping you'd end with "and here's how you solve it all".
Feb 18, 2025
@tsoding Which one? What are some good resources?
Feb 15, 2025
@simplex_fx @SebAaltonen @NOTimothyLottes I don't disagree...
Feb 15, 2025
Usually the key benefit is two fold, making the code truly cross platform and decoupling user level code from a specific rendering api/backend.
Feb 15, 2025
@simplex_fx @SebAaltonen @NOTimothyLottes the render pipeline is basically a full piece of software trapped in inside of another software
Feb 15, 2025
@simplex_fx @SebAaltonen @NOTimothyLottes I have exactly that.
Feb 14, 2025
@simplex_fx @SebAaltonen Yeah it's a common problem, thin wrapper interfaces reduced to the worst platform's caps then called at high frequency ...
Feb 14, 2025
@simplex_fx @NOTimothyLottes I briefly discussed this topic in my SIGGRAPH 2022 talk.
Feb 14, 2025
@simplex_fx @SebAaltonen @NOTimothyLottes Every time I abstract at a higher-level I end up precluding some use-case that I didn't anticipate, perhaps because I'm still learning and lack the whole picture.
Feb 14, 2025
@simplex_fx @SebAaltonen @NOTimothyLottes You can do whatever you want the API.
Feb 12, 2025
@iquilezles Is there a use case for step()? I always forget if it's a < or > comparison.
Feb 12, 2025
@tsoding Job offers ask for skills in a particular language...
Feb 10, 2025
@iquilezles I don't know much about shader optimization, but I do wonder how many more of these witty optimization gimmicks are just consumed like tricks of the trade, but nobody ever tests their assumptions, they just replicate as coding memes.
Feb 10, 2025
@iquilezles This comes from common misunderstanding of divergence on GPU ( magic thinking of hiding all supposedly evil IF by something that may be costlier )
Feb 10, 2025
@iquilezles x86 has had conditional move instructions since Pentium Pro (1995).
Feb 10, 2025
@iquilezles In addition, mix() can cause NaN because GPU can calculate 0*NaN=NaN.
Feb 10, 2025
@iquilezles compilers are smart enough to take care of conditional logic without branching(or conditional jump) in many cases, so don't pretend to be smart and just use if else.
Feb 10, 2025
@iquilezles okay..
Feb 09, 2025
@iquilezles Conditional moves are also a CPU thing, and compilers knows about them !
Feb 09, 2025
@iquilezles @iquilezles :
Feb 09, 2025
@iquilezles I feel half of the problem is that people don't quite understand when branching actually occurs, and then get convinced by the whole "ternary/if-else is bad because branching".
Feb 09, 2025
@iquilezles tl dr, compilers will generally fix this kind of issue for you
Feb 09, 2025
@iquilezles I think we need deeper write-ups on this subject as well.
Feb 09, 2025
@iquilezles You didn’t show the compiler assembly for the mix alternative.
Feb 09, 2025
@iquilezles Is this also good advice when programming shaders for mobile hardware?
Feb 09, 2025
@iquilezles This greatly depends.
Feb 09, 2025
@iquilezles But if I use that doesn’t that result in a time when the compiler uses a separate instance to do the effects that would have been done in a different way otherwise? Hypothetically, if you consider the end effects
Feb 09, 2025
@iquilezles At what point does conditional branching occur though? Larger blocks of code?
Feb 09, 2025
@iquilezles I'd say ALWAYS look at the generated assembly when you care about optimizations.
Feb 09, 2025
@iquilezles @SebAaltonen Thanks! But if I understand you correctly, there are other cases where if-statements should be avoided.
Feb 09, 2025
@iquilezles Why would someone do the BAD one?
Feb 09, 2025
@iquilezles What about conditions from sampled textures? If every pixel in a warp takes a different branch, ?: causes extreme divergence.
Feb 09, 2025
@iquilezles Is this true for ARM GPUs as well? I don’t have arm shader disassembler on hand.
Feb 09, 2025
@iquilezles The fear of branching is still so strong.
Feb 09, 2025
@iquilezles What about the classic:
Feb 09, 2025
@iquilezles Thanks for that.
Feb 09, 2025
@iquilezles also valid for any decent modern CPU.
Feb 09, 2025
@iquilezles Maybe the article should further mention that the true evil of if statements in shaders only comes when the neighbouring shader invocations take different paths, as both instances must execute both paths and then throw one away
Feb 09, 2025
@iquilezles Good advice! In HLSL you can also use the select() function to do the ternary which makes it explicit that you want a ternary, not sure if GLSL has a similar thing
Feb 09, 2025
@iquilezles it’s still faster even if the condition is not true for all threads in a group? :o
Feb 09, 2025
@iquilezles This is so infuriating.
Feb 09, 2025
@iquilezles Thanks for this! I learned using step was the right way but it makes code ugly and harder to read.
Feb 06, 2025
@simplex_fx 9-year-old hardware is not ancient.
Feb 06, 2025
@simplex_fx I have thought about this.
Feb 06, 2025
@simplex_fx tbh coding your own engine from scratch is NOT fucking great advice for people who are into making games instead of game engines
Feb 06, 2025
@simplex_fx Rolling your own engine to production quality is additional 12-36 months of work, depending on the game type and target platforms.
Feb 06, 2025
@tsoding Programming develops logical problem-solving skills and technical expertise, enabling you to apply them efficiently in the appropriate language for the task.
Feb 05, 2025
@simplex_fx I think it’s wise to support older hardware tbh.
Feb 05, 2025
@simplex_fx Context: It's a mostly experimental engine meant to be a workspace for research.
Feb 05, 2025
@simplex_fx I would rather spend time on the gameplay than figure out the absolute retardation that is GPU-APIs.
Feb 05, 2025
@simplex_fx If you really are a AAA gamedev for 10+ years, and If you even ever attempted to try working with PCs and not consoles, you should know what an absolute nightmare is trying to support every single gpu generation the moment you start working with more advanced stuff and APIs
Feb 05, 2025
@simplex_fx Your choice of words always makes me laugh lol.
Feb 05, 2025
@simplex_fx Rolling my own, I don't support 10xx because they lack 16-bit support, and I engineer things that otherwise couldn't fit in the register file.
Feb 05, 2025
@simplex_fx Min spec gpu in VR is a standalone headset running a phone chip.
Feb 05, 2025
lol
Jan 29, 2025
@FFmpeg I know a person with a PhD that might disagree with you
Jan 28, 2025
Just raw spatial scaling in a custom resolve/
Jan 28, 2025
@MichalDrobot My mindset is more tuned towards rendering without minSampleShading and using the temporal component to get the shading resolution up since base frame rate will be high anyway.
Jan 27, 2025
@NOTimothyLottes A visualization of said cold caches on a CS workload from Timothy's GDC 2018 Engine Optimization Hot Lap slides: https://gpuopen.com/wp-content/uploads/2018/05/gdc_2018_sponsored_engine_optimization_hot_lap.pptx
Jan 26, 2025
@NOTimothyLottes My take is similar, but I also feel that a lot of processing is best done predictively in parallel across multiple future frames, one SIMD lane per future frame
Jan 26, 2025
@NOTimothyLottes I thought framegen was just an offspring of mpeg2 motion prediction, at least how it was in TVs for 15 years.
Jan 24, 2025
@rfleury thank you for this thread- read it a while ago, but now working on a game and something *clicked* when thinking about modeling data in this way (understanding the power of the 2^n benefit)
Jan 18, 2025
@NOTimothyLottes I can’t speak about AI but we do have Genlock to worry about in our multi-GPU setups.
Jan 18, 2025
@NOTimothyLottes Best guess from what they have said is they want unrestricted access to the command processor/ultra-threaded dispatch processor(micro-engine scheduler) to implement their own scheduling program(targeting specific CUs for example).
Jan 18, 2025
@NOTimothyLottes One thing I know about multi-gpu is that tinygrad (the ai training framework he is building) want to use peer-to-peer gpu communication on consumer hardware (rtx 4090 and rx 7900 xtx), but it is only enabled on enterprise hw, so he made his own driver to support it on consumer hw
Jan 18, 2025
@NOTimothyLottes Also George started with RX7900 A0 silicon, so i guess there are hardware hazards, which he did hit when doing custom stuff...
Jan 17, 2025
@VictorTaelin Optimal processors require unconventional architectures.
Jan 06, 2025
@NOTimothyLottes Some optimization ideas:
Jan 06, 2025
@NOTimothyLottes I was looking at a very similar problem for hemi-octahedrons recently.
Jan 06, 2025
After a few hours of trying workaround and seeing a whole lot of perf bugs in the process.
Jan 06, 2025
@NOTimothyLottes GLSL bitfieldInsert does something else?
Jan 04, 2025
@NOTimothyLottes It's pretty amazing how good the Hastings approximations still are.
Dec 30, 2024
I just do combinations of separate SPSC ring buffers with a known amount of input and output threads.
Dec 30, 2024
@bmcnett There is another way, one can group items and just do counting per group, release the whole group only when all items in group are ready
Dec 30, 2024
@bmcnett Qubits:
Dec 28, 2024
@Jonathan_Blow @rflaherty71 FWIW I implement SIMD for Dlang.
Dec 26, 2024
@sasuke___420 @corsix @lemire @rflaherty71 Yeah, AVX512 seems like kind of a waste of time right now unless one is targeting a specific machine for specific reasons.
Dec 26, 2024
I’ve never looked at a real-world optimizer.
Dec 26, 2024
@Jonathan_Blow @rflaherty71 Are you aware of fasmg? It's an assembler engine, meaning that even the instruction sets are libraries (literally just include 'http://avx.inc').
Dec 26, 2024
LLVM does what you want, you just need to learn what the MC layer is all about.
Dec 26, 2024
@Jonathan_Blow @rflaherty71 I'm going to admit my radical opinion here, I think high level languages have been a mistake in general and that all you really want at all is a high level assembler.
Dec 26, 2024
@Jonathan_Blow @rflaherty71 I think its a question of modularity in that long term plan sounds like totally replacing LLVM.
Dec 26, 2024
@Jonathan_Blow @rflaherty71 Why are your metadata tables so large?
Dec 25, 2024
@Jonathan_Blow @rflaherty71 I'm working with my personal language with some similarities in philosophies.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 Id consider being able to compile to C, then you are not dependent on any particular implementation and you are guaranteed to support all platforms.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 It might be worth looking at SPIRV-V as it provides cross-platform RTL that can be converted to platform-specific insns with a lightweight driver/converter.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 With incomplete knowledge and opinions, I believe in the monolithic compiler.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 Feels like the inevitable path down to creating a bespoke IL.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 Could you keep the tables in userspace, but mark them with a compiler directive saying “use this table for codegen”? The compiler would then parse it out in earlier phases for use in the backend.
Dec 25, 2024
I think ffmpeg is one of the large & prolific open source projects that maintains huge segments of hand written assembly code, and they maintain separate assembly code for arm (aarch64) and x86.
Dec 25, 2024
(My last serious work on compilers was a project course way back in 2008, where we got as far as doing a few basic optimizations on SSA, allocating registers and doing instruction tiling for x86.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 I definitely don't see a reason to externalize the assembler if you're going to need it to eventually replace the backend code generation.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 It’s interesting that I’ve seen this exact issue (re:llvm) come up in several domains - there is a monolithic solution that is really 10 pieces combined.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 I do lots of asm/intrinsics.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 As the solution for this exact dillema, in my lang I'm thinking about exposing inline IR to the user.
Dec 25, 2024
@Jonathan_Blow @rflaherty71 Can popcount and SIMD functions be implement using inline assembly? It sounds like they're built into the compiler right now rather than the standard library.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 Suggestion: focus on compile speed and small size, aka simple code generation (easy to maintain), but not necessarily runtime performance optimal.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 I wonder if this is this why MSVC did away with inline assembly in favor of intrinsics? Just the hassle and maintenance effort involved with assembly generation?
Dec 24, 2024
@Jonathan_Blow @rflaherty71 I know a few compiler people and they also hate dependencies, one told me he puts things into modules so the backend and frontend sees as little as possible.
Dec 24, 2024
The costs of dropping SIMD are low in the space of game development.
Dec 24, 2024
IIRC your language lets you run code at compile time as part of the compiling process so why not have the assembler be at that level instead of in the compiler itself and let the compile time code gen be able to output machine code directly & let the assembly instructions be part of the standard library for each specific platform instead?
Dec 24, 2024
@Jonathan_Blow @rflaherty71 I feel like you sort of answered your own question.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 Is it too late to target some subset of C for the IR and optionally let users pick their own toolchain to build the binary if they want to do something exotic?
Dec 24, 2024
@Jonathan_Blow @rflaherty71 Please consider the data communication cost of having more than one binary.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 For graphics APIs you can have a mapping for the lowest common denominator with virtually no overhead; is this similar to what you had in mind for intrinsics?
Dec 24, 2024
@Jonathan_Blow @rflaherty71 I think you should keep the assembler in tree because you know you’re gonna need it for instruction selection.
Dec 24, 2024
If the plan in the long term is to be off LLVM, you’ll need all that code anyway so that is fairly fixed.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 In my experience writing optimized numerical routines the "generic builtins" approach doesn't work well because the underlying data shape and algo is also influenced by the available instructions and bitwidths of the simd impl.
Dec 24, 2024
We have two practical variable-length SIMD instruction sets: SVE/SVE2 and RISC-V.
Dec 24, 2024
@Jonathan_Blow @rflaherty71 I would prefer a cool assembler and "intrinsics" could be implemented with it in userspace.
Dec 24, 2024
As an embedded dev working with ARM and some DSPs, I vote for keeping the assembler inside the compiler but stripped down.
Dec 22, 2024
@NOTimothyLottes Humor me… have you tried entering in atomicAdd(adr,lane==0?v:0)? How bad is it relative to the rest?
Dec 22, 2024
@NOTimothyLottes I wonder is there explainable perf and algorithmic different between atomicAdd on uint cell vs incrementing a buffer counter (for append/consume buffer)
Dec 22, 2024
@NOTimothyLottes I'm not going to pretend I understand a lick of this, which is why I have a humble request, well 2 actually:
Dec 21, 2024
@NOTimothyLottes Have you tried using the Intel cache controls extension I shared earlier to see if they work on AMD?
Dec 21, 2024
@NOTimothyLottes I like select instructions for this purpose since all sides are guaranteed to execute.
Dec 21, 2024
@NOTimothyLottes I will never ever understand how a company literally spends hundreds of millions on hardware R&D and tapeouts and then squanders half the performance with its absymal compiler.
Dec 20, 2024
@NOTimothyLottes now you're talking!
Dec 20, 2024
@rfleury interesting projection of combinatorics system into coding system.
Dec 19, 2024
@rfleury I completely agree.
Dec 18, 2024
@AgileJebrim @SebAaltonen @munohikari (3.) If you had multiple line stores collecting on a given line with ECC, you'd have the same bottleneck as fire-and-forget atomics.
Dec 18, 2024
@AgileJebrim @NOTimothyLottes @munohikari Yes, but it's going to be MUCH slower.
Dec 18, 2024
@rfleury example?
Dec 18, 2024
@rfleury @threadreaderapp unroll
Dec 18, 2024
@rfleury At what point do you think you should convert a switch statement to "behavior flags"? Suppose there are N entity types and K behaviors.
Dec 18, 2024
@rfleury Maybe you already wrote this somewhere, but I'd be interested in seeing a practical example of your approach, even a basic one.
Dec 18, 2024
@rfleury any concrete example?
Dec 18, 2024
@rfleury This reminds me of games and simulations, where entities have a set of attributes.
Dec 16, 2024
@EricLengyel Don't use motion blur.
Dec 16, 2024
@EricLengyel it renders all velocities assuming your eye stares motionless so if your eye moves its all horribly wrong and looks like trash
Dec 16, 2024
@NOTimothyLottes @kechogarcia I'm well aware.
Dec 16, 2024
@NOTimothyLottes @GustavSterbrant Fair enough.
Dec 15, 2024
@EricLengyel Finally the skeleton from the cover your 3Dmath book appears! Nice work on the engine so far!
Dec 13, 2024
@EricLengyel @SuppDiggyDawg You act like if we could actually read and shit 😅
Dec 13, 2024
@EricLengyel @SuppDiggyDawg I guess that...
Dec 08, 2024
@tsoding People should do both? Multiple languages at once, orthogonal in purpose as possible.
Dec 06, 2024
@pikuma OS/2 era o Windows escrito do jeito certo.
Dec 06, 2024
@pikuma I bought inferno and ran it some a decade or 2 ago, same with opensolaris and minix.
Dec 05, 2024
@pikuma I wonder what happened to Michael Abrash.
Nov 27, 2024
@EricLengyel Yup.
Nov 27, 2024
@tsoding Any tips on where to start?
Nov 22, 2024
@NOTimothyLottes Shouldn’t uniform be a scalar?
Nov 20, 2024
@NOTimothyLottes How reliable in your experience in code like that is the compilation to avoid branches?
Nov 17, 2024
@NOTimothyLottes Curious why you memory map the 32 bit counter to the file.
Nov 16, 2024
@NOTimothyLottes So each line is 63 spaces followed by a \n, and those 63 spaces get replaced by printable characters dynamically? I have long dreamed of a text format with a fixed 128 byte line width, and cache line size is gradually switching over from 64 to 128
Nov 16, 2024
@NOTimothyLottes Why the heck do you care about cache lines, if you write to a mmaped file? Of course there's overhead: TLBs aren't free.
Nov 16, 2024
@NOTimothyLottes This is super cool, but why map a file and not just stdout?
Oct 21, 2024
@ENDESGA Excellent site— sharing it everywhere.
Oct 08, 2024
@VictorTaelin Why a 3D system? Chips are largely planar, and while you can project any topology onto a plane, it may not be optimal.
Sep 20, 2024
@mike_acton wow this is a personal attack, thank you for bringing light to this.
Sep 11, 2024
@tsoding I really would like your take on the art of programming series by Knuth and I would love a stream on that, for me I find it very dense but definitely worth it
Sep 01, 2024
@tsoding What are some good books on this matter? I've heard good things of SICP and the compiler book with the dragon cover
Aug 17, 2024
@skdh @EricLengyel Thanks for sharing our pain.
Aug 07, 2024
@VictorTaelin Bring back the LISP machines!
Aug 06, 2024
@tsoding Both require a little bit of both, am I wrong?
Jul 25, 2024
@ocornut 🤔 surely by definition not redundant then? Would be interested to hear more detail; it is a question of making sure it is in the right places?
Jul 25, 2024
@ocornut I do this to.
Jul 21, 2024
@EricLengyel @Ancient_Geo Thank you!
Jul 17, 2024
@VictorTaelin Cool! A few technical questions.
Jul 12, 2024
@VictorTaelin Interaction combinators aren’t optimal, as they’re exponentially slower than quantum computers on some tasks, right?
Jul 12, 2024
@VictorTaelin horrible idea: if you want to rewrite circuit for performance, why not doing it directly on the lowest gate-level?
Jul 02, 2024
@EricLengyel Spoilers! I havent gotten this far in the book yet haha
Jul 02, 2024
@EricLengyel My mind is too dirty for this graph.
Jun 30, 2024
@VictorTaelin I don't understand...
Jun 30, 2024
@pikuma Agree, I just had to implement mmap/madvise/munmap on a system that lacked it and goddamn, that rabbit hole made me realize how much complexity modern OS’s hide from us even at the C / POSIX level.
Jun 29, 2024
@VictorTaelin
Jun 29, 2024
@VictorTaelin I got inspired and made a song about it: https://suno.com/song/a54124fe-b78d-489b-9a68-47652b3030e1
Jun 29, 2024
@VictorTaelin How does a commutation interaction work?
Jun 29, 2024
@VictorTaelin Is this similar to the computation model underlying Wolfram’s Physics project? Essentially a hypergraph (set) rewrite system?
Jun 29, 2024
@VictorTaelin good content.
Jun 28, 2024
@VictorTaelin message passing graph neural network
Jun 28, 2024
@VictorTaelin Does talking about physical efficiency in terms of Lambda Calculus or Turing Machines makes sense? They are elegant models to reason about computability and complexity classes.
Jun 28, 2024
@VictorTaelin @MikePFrank You’re my certified hardware guy.
Jun 28, 2024
@VictorTaelin Curious, because what you describe sounds very similar to neuromorphic computations and energy-based models.
Jun 28, 2024
@VictorTaelin Well, that’s basically a description of the human brain
Jun 28, 2024
@VictorTaelin looked into Ivan Sutherlands work at the ARC
Jun 28, 2024
@VictorTaelin i desire low power hardware thats highly efficient and highly parallel, in the way that autotrophs have slow metabolism
Jun 28, 2024
@VictorTaelin Have you looked into topological deep learning? These two concepts feel convergent…
Jun 28, 2024
@VictorTaelin Reading graphical interaction systems, I'm hearing "postsymbolic" / iconic formal system.
Jun 28, 2024
@VictorTaelin Your posts about these topics are so fascinated, I feel like I've got a long way to learn to fully understand what is being said.
Jun 28, 2024
@VictorTaelin Has anyone looked into how ICs interact with reversible computing? In today's hardware, power density is the real issue.
Jun 28, 2024
@VictorTaelin How difficult is it to be ahead of your time? (honest psychological question)
Jun 28, 2024
@VictorTaelin When seed round for the hardware shop
Jun 27, 2024
@tsoding According to NVIDIA CEO programming is overrated, well i guess he can dump anything he wants, mostly useless shit.
Jun 22, 2024
@EricLengyel Will correct this in the morning, thanks!
Jun 22, 2024
@mike_acton RIP all cancer patients.
Jun 22, 2024
@mike_acton Sophistry is a primary activity of many "Software Engineers".
Jun 22, 2024
@mike_acton Is it possible this system design flaw is an extension of
Jun 22, 2024
@mike_acton best talk
Jun 22, 2024
@mike_acton Finns have a nice saying: "perse edellä puuhun".
Jun 22, 2024
@mike_acton Move fast and break things 😎👍
Jun 22, 2024
@mike_acton free of flaws, modular & can fit everyone and every use case!
Jun 22, 2024
@mike_acton The happy path is just a special case of error
Jun 22, 2024
@mike_acton sounds like a variant of perfectionism
Jun 22, 2024
@mike_acton If you apply this tweet to itself, an interesting thing happens!
Jun 22, 2024
@mike_acton Ah, sounds like to many conditionals and too much nesting - both insufficient ;-)
Jun 21, 2024
@mike_acton What is an example for this? Asking because taking this advice literally would lead to not protecting from anything until it causes a system failure, which sounds as irrational
Jun 21, 2024
@mike_acton I'd love to hear some war stories inspiring this tweet
Jun 21, 2024
@mike_acton Most people misunderstand how to protect a system:
Jun 21, 2024
@mike_acton One thing you should remind yourself if you want progress.
Jun 21, 2024
@mike_acton Most of them choose to use the internet, which is full of flaws!
Jun 21, 2024
@mike_acton This feels familiar… I often mess things up when I think too much ahead instead of just making a beeline for solving the problem.
Jun 14, 2024
@pikuma Wasn't that always what practical software engineering was about? Isn't it more of a difference of degree, not kind? There are more layers separating you from the machine, but they are just more layers.
Jun 14, 2024
@pikuma Don’t forget gluing together SaaS products for auth, deploy, redis, logs, etc because those things are also really hard.
Jun 13, 2024
@pikuma Depends on what you'd consider to be the optimum level of abstraction.
Jun 13, 2024
@pikuma My hands are literally less than a centimeter from the motherboard, what are you talking about?
Jun 13, 2024
@pikuma "Actually, that's a tenant of Software Engineering, which is to use abstraction to hide the unnecessary details in order for people with finite amounts of memory and energy (the developers) to build large and complex things."
Jun 13, 2024
@pikuma and people called me crazy for saying that just programming in assembly is easier than to learn how to use a compiler
Jun 13, 2024
@pikuma I just recently learned that in modern software development there are two compilation processes, one from source code to intermediate representation done by compilers and another one from IR to machine code done inside drivers, that’s just a bit too much
Jun 13, 2024
@pikuma That is why I am studying to create my own OS and Hardware connections, I feel there is too much I am missing out.
Jun 13, 2024
@pikuma First learn C and Asm, then do whatever you want.
Jun 13, 2024
@pikuma On the OS question, what's your opinion on Buttazzos book?
Jun 13, 2024
@pikuma And so many levels of highly opinionated abstractions without documents.
Jun 13, 2024
@pikuma It‘s easier than ever to learn to program on embedded hardware.
Jun 13, 2024
@pikuma Worse yet, more abstractions are piled on top of each other every year
Jun 13, 2024
@pikuma What hardware development then?
Jun 12, 2024
@pikuma And this is exactly why its taken me nearly a decade to actually get around to making things myself.
Jun 12, 2024
@pikuma What's your opinion on the AI revolution as it relates to systems / low level programming.
Jun 12, 2024
@pikuma soooooooo trueeeee (I can't do anything on OS or hardware level yet but I do feel my web programming job can be done by a 12 y/o in HS so that means I need to lock tf in)
Jun 12, 2024
@pikuma don’t forget copying and pasting bad scripts from one repo to another, modifying them slightly, creating exponential gargoyles.
Jun 12, 2024
@pikuma I think this is partly because of how bad most CS schools teach courses like Operating Systems, Compilers etc.
Jun 08, 2024
@QVHenkel RF is nothing but black magic
Jun 08, 2024
@QVHenkel I had a feeling it was something like this but I didn't know that signals could propagate within a metal just like they would through air.
Jun 08, 2024
@QVHenkel How come the top 3 and bottom 3 don’t get lit up
Jun 08, 2024
@QVHenkel 🔥🔥
Jun 08, 2024
@QVHenkel how does one even design this
Jun 08, 2024
@QVHenkel Any chance that you would share the source .sif files?
Jun 08, 2024
@QVHenkel Great work ! Phased array are such a cool tech
Jun 08, 2024
@cem_yuksel Nice, I'm not even super advanced in mathematics but once I saw the (1-t)t and tried a few values it made sense.
Jun 07, 2024
@QVHenkel This is amazing!!! Ive done so much research on phased array radars at one point.
Jun 07, 2024
@QVHenkel https://x.com/9600/status/1798337999102705830?s=46
Jun 07, 2024
@QVHenkel Is there any good simulation SW for antennas available for free? Thanks.
Jun 07, 2024
@QVHenkel is it possible to create a lens by similar principle to create a wavefront shaped as if it originated from a location outside of the emitter array?
Jun 07, 2024
@QVHenkel THANK YOU! I've been reading and trying to intuit how they work since seeing the original "splat"
Jun 07, 2024
@QVHenkel Black magic…
Jun 07, 2024
@QVHenkel I don't know much abt RF design but why can't the output from the LNA produce the output from the lens, as it would lead to the same wave angle in the end...
Jun 07, 2024
@QVHenkel Some physics should be illegal actually
Jun 07, 2024
@QVHenkel Looking at RF circuits as a digital engineer makes no sense.
Jun 07, 2024
@QVHenkel I have no idea what any of this stuff means, but it looks cool, like a weird octopus splashing on a pond lol
Jun 07, 2024
@QVHenkel Cool! What software did you use for this simulation?
Jun 07, 2024
@QVHenkel Where did you get this geometry for the Rotman lens, and can I get it from you somehow (better than screenshotting, that is)? I want to run my own sim.
Jun 07, 2024
@QVHenkel this clarified a lot, thanks
Jun 07, 2024
@cem_yuksel congrats
Jun 07, 2024
@cem_yuksel Cool, @FreyaHolmer will probably like this
Jun 07, 2024
@cem_yuksel Congrats! Maybe, you can test this interpolation with classical method in a mathematical software (i.e.
Jun 07, 2024
@cem_yuksel Any particular reason why you wouldn't define the curve with just Seiler points? I'm thinking, why bother with control points if they aren't needed to define the same curve?
Jun 07, 2024
@cem_yuksel This is really cool.
Jun 06, 2024
@cem_yuksel I love a 2 page paper.
Jun 06, 2024
@cem_yuksel Dope!
Jun 06, 2024
@cem_yuksel Just implemented it myself and looks great, thanks!
Jun 06, 2024
@cem_yuksel That's neat!
Jun 06, 2024
@cem_yuksel I'll be there! 🤩
Jun 06, 2024
@cem_yuksel Thanks! I loved how this interpolation exemplifies the intersection of mathematical ingenuity and practical application, revealing how a refined understanding of polynomial curves can lead to substantial performance optimizations in computational graphics
Jun 01, 2024
@lookoutitsbbear respectfully, this looks as evil as quaternions and i might just stay in my little comp sci lane LOL
May 15, 2024
@tsoding Writing ten of thousands of PHP lines of code doesn’t offer the same learning as experimenting with diverse languages like Rust, C, Go, Python, Haskell etc Each language introduces unique concepts and even different paradigms.
May 09, 2024
@_rygo6 Pure fire 🙌🤌🔥🌑🦇🩸
May 09, 2024
@_rygo6 Volume implies that the shape could be interesting, but cuboid not so much.
May 09, 2024
@_rygo6 and wouldn't ya know it? that was based on linux and wayland :p
May 09, 2024
@_rygo6 Cool find
May 06, 2024
@EricLengyel Imo statement of "good programming language makes it easy to use for anything" is contradictory.
May 05, 2024
@EricLengyel a good programming language could also be one that doesn't have you accidently leak memory
May 05, 2024
@EricLengyel No.
May 05, 2024
@EricLengyel Hmm but do you think Python ("preferably there should be one and only one way to do it") beat Perl (ten ways to do everything)?
May 05, 2024
@EricLengyel *my personal opinion without giving any proof*, *my personal opinion without giving any proof* because *my personal opinion without giving any proof* and that leads to conclusion that *my personal opinion without giving any proof* is the best programming language.
May 05, 2024
@SebAaltonen It could be a good idea to start without intellisense.
May 05, 2024
@SebAaltonen It’s about leveraging the tools to be as productive as possible.
May 04, 2024
@EricLengyel I don’t agree.
May 04, 2024
@EricLengyel @Jonathan_Blow this is not accurate at all.
May 04, 2024
@EricLengyel Preferences are nice, but I don't like the "My way or the highway" language I see a lot.
May 04, 2024
@EricLengyel My ideal programming language would provide a way to specify things which are allowed or not in specific parts of the codebase: Freedom of design is good, but consistency is good as well, and it sucks when everybody does whatever they want in a large codebase, it gets messy.
May 04, 2024
@EricLengyel Which programming language do you consider a good one?
May 04, 2024
@EricLengyel I don't think "good" is really the word, both examples can be good programming languages, just for different people and intents
May 04, 2024
@EricLengyel The BCPL philosophy
May 04, 2024
@EricLengyel This is why I enjoy Lua.
May 04, 2024
@EricLengyel I think it depends whether you've built up taste for the problem space.
May 04, 2024
@EricLengyel I dont quite agree, while it's good that a language stays out of your way, for some things it's the other way around.
May 04, 2024
@EricLengyel This is only true in a world where there aren't junior/mid programmers.
May 04, 2024
@EricLengyel Ok but my design principles are that you ARE forced to write code in a specific way
May 04, 2024
@EricLengyel @Jonathan_Blow I agree, but specialization if languages is nothing bad.
May 04, 2024
@EricLengyel Speaking of languages, this was cute from four years ago.
May 04, 2024
@EricLengyel This is somewhat true.
May 04, 2024
@EricLengyel Minimise friction, maximise joy of programming.
May 04, 2024
@EricLengyel For what "ways"? Is C not good because it forces you to use types for every variable? I assume you don't mean something so fundamental, so where is the line of "coercion" and who is crossing it?
May 04, 2024
@EricLengyel @Jonathan_Blow Such a language might work for personal projects, but it just moves the responsibility of limiting personal expression to the management layer in teams and larger organizations (which usually fails and you get an unmaintainable mess)
May 04, 2024
@SebAaltonen I think people should be able to code without tools, but I'm not going to try to take the tools away.
May 04, 2024
@SebAaltonen There is an argument where people build systems as complex and resource intensive as their tooling will allow.
May 04, 2024
@SebAaltonen I guess this is just another expression of the "if I had to suffer, you should too.
May 04, 2024
@SebAaltonen It’s gatekeeping really.
May 04, 2024
@SebAaltonen Honestly a lot of the "framework" and "transpiler" idiocy is what makes you reliant on tooling you don't need.
May 04, 2024
@SebAaltonen Sometimes we are limited by our environment, which may limit us to the tools available on the device we are working on.
May 04, 2024
@SebAaltonen Its not like you should only code without Support, but its nice to be able to.
May 04, 2024
@SebAaltonen Why do they teach arithmetic, we all have calculators
May 04, 2024
@SebAaltonen Not Notepad, but I have done a non-zero amount of programming in source control diff tools that have none of those features.
May 04, 2024
@SebAaltonen People will justify programming C/C++ on Linux.
May 04, 2024
@SebAaltonen If you can’t code TCL using VI through a bash terminal on a remote Unix box with CVS SC, you can’t code.
May 04, 2024
@SebAaltonen I would say, you should code in a way that is readable even in notepad.
May 04, 2024
@SebAaltonen The skill issue is strong with this one
May 04, 2024
@SebAaltonen I learn to code in C++ back in 2011 and my teacher advised us to work for the moment in Notepad++ just to LEARN,for example,I remember when a function receives a pointer to try to call it placing a lot of '*' or '&' and wait for intellisense not to complain about what i'd written
May 04, 2024
@SebAaltonen And when there is no tool for something, they develop it.
May 04, 2024
@SebAaltonen You never know when a time machine will transport you back into the early 90s and you have to live there and earn a living as software developer.
May 04, 2024
@SebAaltonen It's about gatekeeping and feeling superior, Sebastian.
May 04, 2024
@SebAaltonen ctags and cscope.
May 04, 2024
@SebAaltonen Why one would waste time & do things in more error prone ways, when good tools are available.
May 04, 2024
@SebAaltonen Legends use nano or vim as well!
May 04, 2024
@SebAaltonen Using CodeBlocks instead of Visual Studio for some time taught me that we created IntelliSense for a reason.
May 04, 2024
@SebAaltonen I know a lot of “professionals” who can’t code at all without an IDE, even on small projects.
May 04, 2024
@SebAaltonen You should be able to program on paper!
May 04, 2024
@SebAaltonen Ah yes, high school memories where we all wrote HTML code in Notepad.
May 04, 2024
@SebAaltonen If you wouldn't be able to do your job without an IDE there's a problem
May 03, 2024
@SebAaltonen Who cares? Do what makes you happiest and wealthiest.
May 03, 2024
@SebAaltonen I wish visual studio had better code context colorization.
May 03, 2024
@SebAaltonen Static/globals/#defines were warm
May 03, 2024
@SebAaltonen The only good faith reply is if you’re a systems engineer and you have to work on remote servers with no ability to run an IDE/Desktop so you’re stuck with VIM (can’t reverse tunnel/mount)
May 03, 2024
@SebAaltonen Nothing wrong with new tools, it's just that most people get used to them and can never go back.
May 03, 2024
@SebAaltonen Same reason some large corps demand that we have specific paths for random shit we all use autocomplete for.
May 03, 2024
@SebAaltonen You should write your code on paper by hand 😤 totally
May 03, 2024
@SebAaltonen Being able to code without assistant is a good thing, maybe?
May 03, 2024
@SebAaltonen Still remember how my technical school assigned a literal psychopath to teach us do databases.
May 03, 2024
@SebAaltonen because high arrogance + low intelligence
May 03, 2024
@SebAaltonen Can't stand IDEs, honestly.
May 03, 2024
@SebAaltonen I pretty much agree with you, but I started using nvim recently, and it doesn't have an LSP for the a language that I already know very well (gml) And I did learn stuff forgoing the autocomplete, I feel like my knowledge deepened, if that makes sense.
May 03, 2024
@SebAaltonen To flex on others
May 03, 2024
@SebAaltonen I remember having an argument with one of the staffs of 42 about allowing the usage of debuggers in exams as he was totally against the idea leaving us with printf debugging in a 2h exam session.
May 03, 2024
@SebAaltonen As a kid I thought coding seemed cool and wrote a 30 second program in basic in a text file I renamed to an .exe.
May 03, 2024
@SebAaltonen Gate keeping programming and thinking it makes you special is incredibly sad.
May 03, 2024
@SebAaltonen There's a big difference between "being able to" and actually doing it.
May 03, 2024
@SebAaltonen People have a superiority complex for working in the hardest way possible because “that’s how I had to do it”.
May 03, 2024
@SebAaltonen You should be able to code in Notepad just so you can truly relish the joy of not having to.
May 03, 2024
@SebAaltonen MAJOR DISAGREE
May 03, 2024
@SebAaltonen You shouldn’t have to code this way for serious projects.
May 03, 2024
@SebAaltonen I think the point is that you should be able to code well enough that IDE is a tool to help you and make you more efficient, not a tool that allows you to do it at all - you can still do it without an IDE, it's just slow and annoying.
May 03, 2024
@SebAaltonen To assert dominance
May 03, 2024
@SebAaltonen Nothing has more forever-a-junior-level-programmer energy than “You should spend more time and energy looking up API calls and typing console commands instead of using that time to iterate on your design and improve your code” takes
May 03, 2024
@SebAaltonen That is just another IT-twitter bait, just mute or block him, he is fuckwad.
May 03, 2024
I could write all my code in assembler too.
May 03, 2024
@SebAaltonen chill bro it's an engagement bait
May 03, 2024
@SebAaltonen Yeah if it's available use it.
May 03, 2024
@SebAaltonen Old guys trying to act like their depreciating skillset makes them more valuable...
May 03, 2024
@SebAaltonen It’s a showcase of the « I’m stronger than you » syndrome so many programmers have.
May 03, 2024
@SebAaltonen For the first few months of my first web development job I was using notepad++.
May 03, 2024
@SebAaltonen I was once interviewed where they asked me to write code and diagram databases in Notepad 🤦‍♂️
May 03, 2024
@SebAaltonen I start to consider to go back to a simple text editor, like when I was using emacs at school, juste because VS is getting worse.
May 03, 2024
@SebAaltonen You shouldn't actually do it.
May 03, 2024
@SebAaltonen Some people feel scared to give up lower level tasks to automatization.
May 03, 2024
@SebAaltonen blue check farming engagement
May 03, 2024
@SebAaltonen The key word is ABLE.
May 03, 2024
@SebAaltonen It's a meme from a person who posts nothing but memes on Twitter.
May 03, 2024
@SebAaltonen it's bait.
May 03, 2024
@SebAaltonen it's just coder bravado to show off toy algorithms
May 03, 2024
@SebAaltonen They are signaling
May 03, 2024
@SebAaltonen Because when you have to fix something on a customer system then usually notepad/vim/nano is literally the only option you have, that's why.
May 03, 2024
@SebAaltonen "You should be able to code with punch cards directly in binary" same energy
May 03, 2024
@SebAaltonen Debate is not about when you don't want to use notepad, but when you are not able to use it.
May 03, 2024
@SebAaltonen The anti-tooling discourse in programming is quite tiring
May 03, 2024
@SebAaltonen You should be *able* to, it shows that you understand what you're writing, but you shouldn't *actually* do it because it's ridiculously inefficient
May 03, 2024
@SebAaltonen Real programmers use a magnetized needle and a steady hand.
May 03, 2024
@SebAaltonen Tbf intelisense is just a faster way of finding the right code/method to do something instead of finding it online or in a book...
May 03, 2024
@SebAaltonen I started in notepad, now I use vim for all my programming needs
May 03, 2024
@SebAaltonen I had that at an interview once.
May 03, 2024
@SebAaltonen I once was in an interview where they handed me a pen and paper and said "write this program"
May 03, 2024
@SebAaltonen Honestly the meme works infinitely better if you sub IntelliSense out for Copilot.
May 03, 2024
@SebAaltonen @SebAaltonen use whatever you want
May 03, 2024
@SebAaltonen The meme isn't saying you shouldn't use it, it's saying you should be *able* to still program without it.
May 03, 2024
@SebAaltonen Because that’s how we learned and you should too 😂
May 03, 2024
@SebAaltonen It's like telling a carpenter "You should be able to do all your work without power tools".
May 03, 2024
@SebAaltonen It makes old people feel cool, because they at some point were forced to code like that
May 03, 2024
@SebAaltonen You are an intellisense yourself if you have the references at your disposal.
May 03, 2024
@SebAaltonen "Should be able to" doesn't mean "prefer to." It's just a base line level of fluency that implies more experience and probably more competency.
May 03, 2024
@SebAaltonen I think there is some value in this.
May 03, 2024
@SebAaltonen It's not about wanting, it's about being able to.
May 03, 2024
@SebAaltonen No need to do that.
May 03, 2024
@SebAaltonen they just gaslight themselves that their broken vim config is equivalent to a proper IDE
May 03, 2024
@SebAaltonen Simple editors tend to lead to other bad choices to compensate.
May 03, 2024
@SebAaltonen The decel mind is perplexing 🤔
May 03, 2024
@SebAaltonen Folks advocating for "notepad" coding is much like a grandfather boasting how he walked to school during a blizzard.
May 03, 2024
@SebAaltonen To prove twitter they're good coders
May 03, 2024
@SebAaltonen i sort of agree, but i'm so often forced to code with no functional IDE when teaching students (cos they haven't set up correctly) that i can say it's a helpful skill to keep.
May 03, 2024
@SebAaltonen It's obvious engagement farming / rage bait.
May 03, 2024
@SebAaltonen It's a desire to appear extraordinarily competent without having worked enough for it.
May 03, 2024
@SebAaltonen Because I don’t want the distractions, I don’t want my hand held, I just want to type, typos and all.
May 03, 2024
@SebAaltonen I would agree with the original poster.
May 03, 2024
@SebAaltonen Hell, I used notepad++ for my shitty terraria mods and the TML discord act like I sacrificed them all to Satan lmfao
May 01, 2024
@pikuma The remarkable lesson for me was placing Nyancat on the production server.
Apr 30, 2024
@pikuma Hehe.
Apr 30, 2024
@pikuma Best humor is the one when you don't know if it's real or not 😃
Apr 30, 2024
@pikuma lol
Apr 29, 2024
@EricLengyel
Apr 24, 2024
@KostasAAA It's a silly thing on many levels.
Apr 24, 2024
@KostasAAA What's the value of shaderSampledImageArrayDynamicIndexing?
Apr 20, 2024
@EricLengyel I wonder how much the problems with reliability of academic research have in common with the reliability of Amazon reviews.
Apr 16, 2024
@EricLengyel Wait…is completing the square somehow related to integrating? Trying to understand how I never noticed how the derivative of a quadratic “undoes” the outer operations in quadratic formula.
Apr 16, 2024
@tsoding what do you recommend someone who wants to start learning programming and has no information about anything to do?
Apr 10, 2024
@EricLengyel + degenerate cases where a 0 value in one component would equivalently be a smaller type.
Apr 09, 2024
@NOTimothyLottes @SebAaltonen @MartinJIFuller Oh sick, I'm deep in optimising shaders in an AAA game for GCN hardware right now (You can probably guess the platform(s)) so this is super relevant to me.
Apr 08, 2024
@NOTimothyLottes @SebAaltonen @MartinJIFuller Ha! That won’t save you from my follow
Apr 06, 2024
@NOTimothyLottes @SebAaltonen A worthwhile project, knowledge well worth sharing, but is a book the right format? Perhaps yes, just thinking out loud.
Mar 13, 2024
@_rygo6 I’ve definitely overindulged in OOPs delights, to my own chagrin when tracing, and you’re right that the hierarchy is there whether it’s linear in visualising.
Mar 05, 2024
@tsoding One string which is a pointer because this isn't a strongly typed language like Scheme: "The Structure and Interpretation of Computer Programs".
Feb 28, 2024
@tsoding If you want to stick with one language, which is it ?@tsoding
Jan 24, 2024
The only problem here is that you cannot do this in a header file that is going to be included within a C++ source file...
Jan 23, 2024
@vkrajacic Nice - when you combine this with all the other tricks (arenas, stretchy buffers, strings with length, etc), C is a really nice language to use!
Jan 23, 2024
@vkrajacic Shouldn't it be TransformArguments?
Jan 23, 2024
@vkrajacic How does default work? Do variable args bypass duplicate designator in initializer?
Jan 23, 2024
@vkrajacic Very cool! Designated initializers is one thing I wish c++ had.
Jan 22, 2024
@tsoding *cancelled his linguistic study and started programing*
Jan 05, 2024
@NOTimothyLottes It's what debuggers should be.
Jan 02, 2024
@ChipsandCheese9 Is there a reason why you use the texture sampling instructions? How are they different to "normal" loads?
Jan 01, 2024
@ChipsandCheese9 In theory compiler virtual wave size could have perf affects on modern Intel arch.
Jan 01, 2024
@ChipsandCheese9 Wish I understood half of wtf you were talking about? I do, however, make it to the conclusions.
Jan 01, 2024
@ChipsandCheese9 I wonder if the throttling is due to local current limits, or temperature limits from unexposed sensors.
Dec 31, 2023
@NOTimothyLottes Thought surface only gi was a heavy-handed optimization (like heightmap terrain for sdf schemes).
Dec 31, 2023
@rfleury aah!
Dec 30, 2023
@NOTimothyLottes Yup, I've been arguing (somewhat prematurely, it could be argued) for agressive GPU NUMA for over a decade - I don't think it was entirely premature because of the software issue - that will take a long time to solve, and longer if GPUs don't move first...
Dec 30, 2023
@bmcnett You need it in tools, it's impossible to produce good enough tools on time without it (or new/delete).
Dec 26, 2023
@NOTimothyLottes You could maybe use a D3D9 swapchain to query this information...
Dec 25, 2023
@NOTimothyLottes That's insane.
Dec 25, 2023
@bmcnett @forked_franz malloc() actually is pretty fast on most implementation.
Dec 24, 2023
@NOTimothyLottes It takes how long!?
Dec 24, 2023
@NOTimothyLottes Do you know other equivalent graphs or ressources for other GPUs (GTX, RTX, Snapdragon XR, ...) ?
Dec 24, 2023
@SheriefFYI 2x faster today perhaps.
Dec 24, 2023
@SheriefFYI Sorry I didn't have time to do this during the week, but it seems to be matching my experience a bit more !
Dec 24, 2023
@bmcnett BTW, it's usually not malloc that kills you.
Dec 24, 2023
@bmcnett writing a reasonably performant memory allocator is incredibly eye opening, the amount of work that can happen for 1 allocation is certainly not something you want in hot paths
Dec 23, 2023
Yes, you should use malloc sparingly.
Dec 23, 2023
@bmcnett Any performance minded person should know that any memory allocation is expensive.
Dec 23, 2023
@bmcnett @SheriefFYI Perf enlightment happens when you no longer use dynamic memory allocation, and thus spend your time complaining about page table related bottlenecks at load time.
Dec 23, 2023
@bmcnett How can you ban that at link time?
Dec 23, 2023
@bmcnett Consoles.
Dec 23, 2023
@bmcnett Right at the start of a project, add a few million clocks of time slug to your malloc() and free() calls and never tell anybody else what you did.
Dec 22, 2023
@m_schuetz Linked list of wave+cacheline granularity workloads is an interesting construct, thanks for a good read.
Dec 22, 2023
@mike_acton Think there's a typo in https://www.altdevarts.com/p/fixed-point-as-compression:
Dec 21, 2023
@NOTimothyLottes It is a gray driver area.
Dec 21, 2023
@NOTimothyLottes Loading files would be synchronous and involve a bunch of faults, so how would it be worth it compared to the syscall overhead?
Dec 20, 2023
@NOTimothyLottes I do the same in terms of WIN32 and such, but of course I include that header that I write within my own code where needed.
Dec 20, 2023
@NOTimothyLottes to me the weird font is more un-readable than the non-include thing :)
Dec 20, 2023
@NOTimothyLottes I think this is totally fine TBH.
Dec 20, 2023
@NOTimothyLottes I much prefer i32, f32, f16, u32, u8, etc.
Dec 20, 2023
@NOTimothyLottes *wink wink*
Dec 20, 2023
@NOTimothyLottes Perf/W is such an overlooked quantity, even on non-tethered platforms like mobile or handheld consoles.
Dec 20, 2023
@NOTimothyLottes Perf/W is so underrated and out-of-control on Windows side
Dec 20, 2023
@NOTimothyLottes @SheriefFYI What’s the best way of doing that if rebar is not supported? Say on WebGL / DX11?
Dec 20, 2023
@kechogarcia I like the single pass (per pass) approach.
Dec 20, 2023
@kechogarcia Noice! Any ideas how it compares to say AMD FidelityFX radix sort? I have ported it to unity for gaussian splat needs (hlsl https://github.com/aras-p/UnityGaussianSplatting/blob/fded9c0/package/Shaders/GpuSortFidelityFX.hlsl and c# https://github.com/aras-p/UnityGaussianSplatting/blob/fded9c0/package/Runtime/GpuSorting.cs ) but I don't know if it's "good" compared to any other impls.
Dec 19, 2023
@NOTimothyLottes queue to queue syncs via cpu need to go
Dec 19, 2023
@NOTimothyLottes @SheriefFYI Yup, right now I async copy mesh and textures data, uniform/constat buffer are just a memcpy via a mapped ptr.
Dec 19, 2023
@NOTimothyLottes @SheriefFYI Wait, is this an issue with VK only or D3D12 too?
Dec 19, 2023
@NOTimothyLottes @SheriefFYI I don't do async textures/buffers in my gpu abstraction yet, still not sure if I want to make it the default or optional at all.
Dec 19, 2023
@tsoding I'm making my own esoteric programming language written in C
Dec 18, 2023
@NOTimothyLottes Aren’t Out-of-Order execution and HyperThreading exactly the mechanisms CPU uses to hide latency?
Dec 18, 2023
@NOTimothyLottes Chasing pointers or dependent texture reads - same shit different sandwich.
Dec 18, 2023
@NOTimothyLottes Could you give a few examples of “game code” that will run faster on gpu? Especially considering all the latency involved pushing/getting stuff to/from gpu?
Dec 17, 2023
@NOTimothyLottes Yep put the whole game logic in a game.glsl compute shader.
Dec 17, 2023
@NOTimothyLottes two point six seconds?!! D3D12CreateDevice() on my machine is ~300ms..
Dec 17, 2023
@NOTimothyLottes Except CPU still excel at branchy code, which also features a lot in gamecode.
Dec 17, 2023
@NOTimothyLottes CPUs are kings of hiding latency in serial workloads.
Dec 15, 2023
@NOTimothyLottes They design one API for each separate use case instead of making general purpose flexible SIMD hardware and API for the developers to implement what ever algorithm they need.
Dec 06, 2023
@pikuma To me the problem is not with adoption, but with support.
Dec 06, 2023
@tsoding I learn English first(
Dec 02, 2023
@pikuma If only Microsoft finished Midori, that would be nice.
Nov 20, 2023
@rfleury Most developers do not understand the distinction between language feature and standard library.
Nov 20, 2023
@rfleury A charitable interpretation would be: For a lot of programs it's quite useful to have a common, expressive interface with basic and 'safe by default' utilities around strings.
Nov 17, 2023
@pikuma NeXT is now macOS.
Nov 17, 2023
@pikuma Well Plan9 and OS/2 are still around, but yes, the world has standardized on unixoid systems and mostly Linux.
Nov 17, 2023
@pikuma I have a single counterpoint which is the difference between the philosophies of KDE and GNOME, but yeah it feels like we're mostly done exploring and stuck with what worked back then
Nov 17, 2023
@pikuma I will never forget flying through an audio file in BeOS shown at a games bar.
Nov 17, 2023
@pikuma Yet all my devices run on NeXTSTEP.
Nov 17, 2023
@pikuma I ran both Amiga and later BeOS.
Nov 17, 2023
@pikuma @shanselman We used to have computers running on valves and relays, nowadays everybody uses transistors.
Nov 17, 2023
@pikuma The most problematic component of a capitalist system is that it drives innovation and then it drives that space to a monoculture to maximize profits.
Nov 17, 2023
@pikuma Even Linux can be more diverse - kernel is not the defining user experience thing.
Nov 17, 2023
@pikuma The UNIX wars was UNIX killing itself and Linux took it's place.
Nov 17, 2023
@pikuma Linux = *nix
Nov 17, 2023
@pikuma Plan 9 deserved to succeed based on its logo alone
Nov 17, 2023
@pikuma That's because in the late 80's, early 90s we were all busy making our own BBS's so wtf else were we supposed to do? I blame wildcat, personally.
Nov 17, 2023
@pikuma True the 90s were a wild west of OSs though it's nice to have something to standardise on rather than getting used to one OS and it being sidelined.
Nov 17, 2023
@pikuma Genuinely a tragedy how Commodore died out the way it did.
Nov 17, 2023
@pikuma BeOS was the best but was killed thanks to M$ illegal actions.
Nov 17, 2023
@pikuma Agree, as you point out, I think we have more variation in GUIs, but only a handful of philosophies.
Nov 17, 2023
@pikuma I agree, we lost the capacity of trying new ways.
Nov 17, 2023
@pikuma Minix, Amoeba, VSTa, VMS ...
Nov 17, 2023
@pikuma You forgot IRIX.
Nov 17, 2023
@pikuma Experimental periods are the most colorful.
Nov 17, 2023
@pikuma Lembro de um anúncio no Informatica Etc que dizia que o OS/2 “assobia e chupa cana”, defendendo que era o único SO realmente multitarefa do mercado (de fato, a multitarefa das primeiras versões do win 95 era meio fajuta)
Nov 17, 2023
@pikuma Linux is too based, that's why everyone uses it now.
Nov 17, 2023
@pikuma The core kernel isn’t as interesting as what you can add on top.
Nov 17, 2023
@pikuma QNX is still around as an embedded system, AIX is alive, so it's Haiku and ReactOS.
Nov 17, 2023
@pikuma I remember being blow away at how fast BeOS started up on my 386 at the time and how it handled audio and video.
Nov 17, 2023
@pikuma More unpopular: let’s shutdown all systems
Nov 17, 2023
@pikuma Yeah, you can thank Micro$oft for that.
Nov 17, 2023
@pikuma We also used to live in trees and throw crap at each other.
Nov 17, 2023
@pikuma The sad thing is that many of those operating systems from the 90s had better GUI (both look&feel and usability) than Windows 11.
Nov 17, 2023
An unpopular opinion that should be a universal opinion.
Nov 17, 2023
@pikuma @AkitaOnRails The abstraction level only changed.
Nov 17, 2023
@pikuma When that guy bought twitter we were introduced to a lot of obscure social networks and here we are on this dumpster.
Nov 17, 2023
@pikuma We still have GNU/Hurd and ReactOS.
Nov 17, 2023
@pikuma "...now everything is just Linux" - there are still some Windows-systems - i saw one just yesterday
Nov 17, 2023
@pikuma I installed Haiku yesterday...
Nov 17, 2023
@pikuma Check the embedded space.
Nov 17, 2023
@pikuma Isn't this a good thing? you can strip down a linux kernel to nothing, and build up exactly what you need.
Nov 17, 2023
@pikuma On the desktop! Finally - this is the year of Linux on the desktop!
Nov 17, 2023
@pikuma Once Unix came around, all the creativity fizzled ;~;
Nov 17, 2023
@pikuma At the end, it is all about licensing
Nov 17, 2023
@pikuma 1.
Nov 17, 2023
@pikuma I used FreeBSD and now I'm on Linux....
Nov 17, 2023
@pikuma Nowadays, the world is tasteless...
Nov 17, 2023
@pikuma Because at the end of the day most of this is not a vehicle for self expression.
Nov 17, 2023
@pikuma @systems_glitch It’s a nice idea but most of these weren’t production ready.
Nov 17, 2023
@pikuma people were wildly creative and less worried about clout back then.
Nov 17, 2023
@pikuma I did my own in 1994.
Nov 17, 2023
@pikuma @noctarius2k We should ask: "what is Linux missing?"
Nov 17, 2023
@pikuma perhaps the outlier amoung all of the unixes there was next step, because it uses the mach kernel, which then evolved into the modern day xnu kernel used by apple.
Nov 17, 2023
@pikuma there are still all of the bsd oses around and debian also offers a gnu hurd based distribution, so there is still variety.
Nov 17, 2023
Yes, most of them are dedicated hardware and forming a closed ecosystem.
Nov 17, 2023
@pikuma I remember downloading the QNX demo disk on 3.5 and being amazed at a 21 bit os with a network stat running from a floppy.
Nov 17, 2023
@pikuma Commodity x86 hardware + Windows NT is what killed those platforms.
Nov 17, 2023
@pikuma Thankfully, BeOS is still alive in HaikuOS.
Nov 17, 2023
@pikuma Hey now, NextStep became macOS (and iOS, iPadOS, tvOS, ...)
Nov 17, 2023
@pikuma I grew up with the Commodore64 and at this point in life I am very curious to know what a modern PC would be like running a single-task OS and with applications written in extremely optimized assembly code.
Nov 17, 2023
@pikuma But Linux is just a Kernel.......
Nov 16, 2023
@pikuma Who needs an OS… just have a super loop on bare metal.
Nov 16, 2023
@pikuma Still happily running AmigaOS on occasion over here.
Nov 16, 2023
@pikuma Tfw we never got GNU Hurd
Nov 16, 2023
@pikuma Computers are boring these days.
Nov 16, 2023
@pikuma RISC OS is still about, as are many flavours of BSD
Nov 16, 2023
@pikuma I think that in general there was just a lot of space for innovation and little for monopoly.
Nov 16, 2023
@pikuma Gustavo … AmigaOS is now bigger than ever and we do still have some UNIX ..
Nov 16, 2023
@pikuma And that's completely fine, the problem is that LINUX Devs haven't done enough to make their distros easy to use and easy to install.
Nov 16, 2023
@pikuma this consolidation feels like it is happening everywhere.
Nov 16, 2023
@pikuma @shanselman You'd think that's great, because everything is compatible and universal.
Nov 16, 2023
@pikuma Haiku, the BeOS ”spiritual successor”, *feels* like Linux.
Nov 16, 2023
@pikuma https://www.youtube.com/live/eH7qKhibvG0?si=EzgCjZa-6VF0uXbD
Nov 16, 2023
@pikuma Inferno, Plan9 and Menuet are unknown to me: time to do some web search 😊
Nov 16, 2023
@pikuma There do exist some others but the communities for them are tiny.
Nov 16, 2023
@pikuma Too much complexity leads to stagnation and entropy.
Nov 16, 2023
@pikuma @shanselman Exploring the nostalgia of BeOS GUI – a blend of coolness 😎 and weirdness 🤪! #TechThrowback #BeOS #GUIExperience
Nov 16, 2023
@pikuma Fuchsia, Zephyr, FreeRTOS, QNX, Windows, macOS/iOS, FreeBSD, vxWorks, QNX, Nucleus...
Nov 16, 2023
@pikuma ;) Not really.
Nov 16, 2023
@pikuma still can use Plan9 on linux
Nov 16, 2023
@pikuma You still have bunch of different OS.
Nov 16, 2023
@pikuma @thezolbatar Fun fact: BeOS sort-of runs in LG WebOS tv sets.
Nov 16, 2023
@pikuma @shanselman And getting drivers or apps for them sucked big time and costs were high
Nov 16, 2023
@pikuma curiously, i am not running linux
Nov 16, 2023
@pikuma I remember installing BEOS, it was pretty good from what I recall
Nov 16, 2023
@pikuma The 90s were a golden age for OS tinkerers
Nov 16, 2023
@pikuma except
Nov 16, 2023
@pikuma @shanselman Lindows ?
Nov 16, 2023
@pikuma The beos philosophy was that it did not run on my graphics card :)
Nov 16, 2023
@pikuma still plenty of OS today.
Nov 16, 2023
@pikuma Everything will become standardized so more people can understand them.
Nov 16, 2023
@pikuma Now we still have that same experience on Android because every vendor customizes the Linux kernel w/ broken code and replace the default launcher, breaking everything in the most bizarre ways.
Nov 16, 2023
@pikuma Don't forget Windows 3.11, Windows 95, Windows NT, Windows ME, Windows CE, ...
Nov 16, 2023
@pikuma now everything is linux, windows and macos*
Nov 16, 2023
@pikuma were some of them open and free ?
Nov 16, 2023
@pikuma This is not an opinion, it's a sad fact...
Nov 16, 2023
@pikuma Convergence is inevitable, though, even if not desirable.
Nov 16, 2023
@pikuma I would just it is mostly UNIX/POSIX.
Nov 16, 2023
@pikuma Depending on what you count as an OS (userland system libs, windowing system etc), we have plenty today: MacOSX, Windows, GNU/Linux, Android, iOS, and a plethora of smartwatch OS:es...
Nov 16, 2023
@pikuma Even on the GUI side on Linux, I feel we lost a lot of diversity.
Nov 16, 2023
@pikuma I used Amiga, OS/2, and CDE in the 90s for work and whole I enjoyed them at the time I wouldn't want to go back to them now.
Nov 16, 2023
@pikuma We got juked because everything moved into the browser, OSes stopped mattering (for most personal computing).
Nov 16, 2023
@pikuma After FOSS stacks took over, the distro replaced the OS.
Nov 16, 2023
@pikuma Explorer shortage in pretty much every field.
Nov 16, 2023
@pikuma We also had different & quirky phones.
Nov 16, 2023
@pikuma Meneut OS is released in 26 May 2000, it wasn’t there even in 1999 it’s a hobby project.
Nov 16, 2023
@pikuma And that's for *everything*.
Nov 14, 2023
@rfleury @cmuratori @TylerGlaiel @AllenWebster4th Thank you for the breakdown Ryan.
Nov 12, 2023
@tsoding once u understand programming, then u can just pick a name of any language to build somethin
Oct 28, 2023
@tsoding Can you give a small roadmap/resources for a complete beginner?
Oct 14, 2023
@tsoding intention with nn.h is all we need
Oct 10, 2023
@rfleury @vkrajacic @simplex_fx I would trust a builtin solution 1000 times more than random libraries.
Oct 06, 2023
@tsoding Hey, I saw your OS as well, I want to switch to Less-GUI OS and ur linux seems very well small UI, can you guide me to have a UI like yours?
Oct 05, 2023
@m_schuetz Looks great 👍 is done on gpu ?
Oct 05, 2023
@m_schuetz Incredible throughput for raw octree generation, the fastest of any workflow I've seen and experienced!
Oct 03, 2023
@ID_AA_Carmack The killer app of AR is not entertainment but Post-it notes.
Oct 03, 2023
The true "killer app" for MR should be the OS / Home UX.
Sep 30, 2023
@ID_AA_Carmack VR is better but I think MR is a harder problem to solve — so it's a good place to aim at.
Sep 30, 2023
@ID_AA_Carmack You are making yourself vulnerable to be the target of the next “640kb is enough for everyone meme 😂
Sep 30, 2023
@ID_AA_Carmack I think its Wrong to compare the Modes or Pit them against each other.
Sep 30, 2023
@ID_AA_Carmack MR seems like a novel accessory/recreation in a world ever expanding in external compute without integrating value-adding interfacing with the users' context(s)
Sep 30, 2023
@ID_AA_Carmack I think there is a case for the virtual screen to make life easier in lots of circumstances.
Sep 30, 2023
@ID_AA_Carmack i think ur wrong but that just makes me think that i am actually wrong..
Sep 30, 2023
@ID_AA_Carmack Carmack I was trying to answer you but I realized I was saying the same thing back to you.
Sep 30, 2023
@ID_AA_Carmack I don't have cash to place a bet with you.
Sep 29, 2023
@ID_AA_Carmack hello.I think that flight and driving rig simulators (e.g.
Sep 29, 2023
@ID_AA_Carmack We would need to define what would make Quest MR successful and over what time.
Sep 29, 2023
@ID_AA_Carmack I bet you a pizza and a 12 pack of diet coke that 50% of daily time in headset will be spent interacting with digital objects and social type experiences in MR within a year of launch
Sep 29, 2023
@ID_AA_Carmack I'll bet you one ZAR to a local SPCA that me, a total beginner for circuit board repair, will find value in mixed reality with it pointing out which tiny component does what and suggests where to put the multimeter to check for continuity, etc.
Sep 29, 2023
@ID_AA_Carmack I suspect you are not intimately familiar with just how much money there is in the "American gun enthusiast" market.
Sep 29, 2023
@ID_AA_Carmack Well you are saying ever, the techs way too 'look at my earpods' right now.
Sep 29, 2023
@ID_AA_Carmack "I remain unconvinced that mixed reality applications are any kind of an engine for increasing headset sales."
Sep 29, 2023
@ID_AA_Carmack I don't think it will increase sales but the technology could increase the possibility of better feedback loops for integrating the real world stimuli into the virtual world.
Sep 29, 2023
@ID_AA_Carmack I bet you $50 that when I try MR for the first time I’ll like it
Sep 29, 2023
@ID_AA_Carmack Aren’t we all going to be living in shipping container styled homes with no furniture in the future anyway?
Sep 29, 2023
@ID_AA_Carmack The utility is more in eye tracking for psych issues like ADHD - not the visual overlay.
Sep 29, 2023
@ID_AA_Carmack Look all I’m saying is that if my friends and I can play dnd across continents rolling virtual dice over actual tabletops I will give metaverse all of my money.
Sep 29, 2023
@ID_AA_Carmack I’ll throw down a lunch bet.
Sep 29, 2023
@ID_AA_Carmack @ID_AA_Carmack I think of mixed reality as an improvement to AirPods.
Sep 29, 2023
@ID_AA_Carmack I'm convinced that nothing will sell VR rapidly to the masses but eventually all these features will accumulate.
Sep 29, 2023
@ID_AA_Carmack Anime IRL (through AR) will encourage many incels to go outside, coercing them to join the workforce.
Sep 29, 2023
@ID_AA_Carmack I agree with you and I wonder: what’s your track record on this kind of predictions?
Sep 29, 2023
@ID_AA_Carmack No, no one cares about your pennies.
Sep 29, 2023
@ID_AA_Carmack The appeal of mixed reality is to bridge the socially awkward gap of VR.
Sep 29, 2023
@ID_AA_Carmack The bet: the loser pays 6 months Twitter bluetick fees of the winner + if I win, you make my previous reply tweet sticky on your timeline for a month.
Sep 29, 2023
@ID_AA_Carmack What odds? The obvious application that occurs to me is all sorts of educational/tutorial content, which might allow the user to learn some physical skill, like exercise, cooking, a musical instrument, etc.
Sep 29, 2023
@ID_AA_Carmack A crumpled 10 GBP note says that cartoony chatting AI NPC / agent / assistant characters hanging out on your sofas, kitchen table, bed etc will be compelling and endearing within a couple of years.
Sep 29, 2023
@ID_AA_Carmack Let’s do a humiliation based bet instead I’m a social worker im poor
Sep 29, 2023
@ID_AA_Carmack Both VR and MR will have a huge amount of exciting and useful applications.
Sep 29, 2023
@ID_AA_Carmack isn't it like holo lens for 500 bucks with a thousand vr apps and a couple hundred xbox games?
Sep 29, 2023
@ID_AA_Carmack I have something cooking that will work in both VR and AR for mainstream.
Sep 29, 2023
@ID_AA_Carmack Alright, I’ll bite.
Sep 29, 2023
@ID_AA_Carmack I actually think MR has greater potential than VR.
Sep 29, 2023
@ID_AA_Carmack Blade runner 2049 love scene using AR (I.e.
Sep 29, 2023
@ID_AA_Carmack $100 that whenever @NianticLabs releases PokemonGo on Quest it's the #1 game by revenue for over a year.
Sep 29, 2023
@ID_AA_Carmack The @tiltfive headset and @jeriellsworth are already a few years ahead taking on that bet 🤑
Sep 29, 2023
would it be fair to say this is accurate but only because the developers who would otherwise develop the "killer" apps for MR simply cannot afford the hardware to be able to do any development, I'm confident you are correct but only for now, give it a few years until the hardware is much cheaper and more accessible to developers and this will turn around pretty quick especially when you consider the commercial industrial applications, the gaming industry all come up with somthing
Sep 29, 2023
@ID_AA_Carmack The idea that when you’re in the kitchen, there’s a conveniently located recipe site window that will never get greasy is compelling…
Sep 15, 2023
@mike_acton Just printed all these out!! Have the original SCCS Interface issue with the Woz article on FP on 6502.
Sep 14, 2023
@mike_acton Thank you for the series.
Sep 12, 2023
@mike_acton Alt dev blog reborn? :')
Sep 12, 2023
@mike_acton @romainguy This one made it click for me a while ago
Sep 12, 2023
@mike_acton What I'm missing, but maybe too niche, is how to convert a binary FP number to a decimal (text) representation, and back.
Sep 12, 2023
@mike_acton I thought I am dumb and don't understand the notation.
Sep 12, 2023
@mike_acton I'm pretty sure you wanted bitwise AND in the second line of this listing.
Sep 12, 2023
@mike_acton > without any difference perceivable by anyone other than the original artist.
Sep 11, 2023
@mike_acton Possibly helpful for anyone reading the article to play around with:
Sep 11, 2023
@mike_acton Is that a slide ruler in the picture?
Sep 11, 2023
@mike_acton Hey Mike looks like there's a small typo in the offset-binary table, last row last column should be 255-128 I think 🙂
Sep 06, 2023
@tsoding How can I ? , please!
Sep 04, 2023
@SebAaltonen @threadreaderapp unroll
Sep 04, 2023
@SebAaltonen What if we had some kind of special syntax sugar, which is later split into two calls.
Sep 03, 2023
@SebAaltonen You might be interested in https://2022.ecoop.org/details/ecoop-2022-papers/17/What-If-We-Don-t-Pop-the-Stack-The-Return-of-Second-Class-Values
Sep 03, 2023
@SebAaltonen I like how Jai solved this.
Sep 03, 2023
@SebAaltonen Ada does this
Sep 01, 2023
@tsoding does it involve writing language?
Aug 27, 2023
@tsoding Your development environment looks very powerful and efficient (Clang + Emacs), but this great programmer, @EskilSteenberg, stands for Visual Studio as the complete solution.
Aug 24, 2023
@pikuma EGA EGA EGA all you need is 16 colors
Aug 24, 2023
@pikuma That book in digital form is free.
Aug 24, 2023
@pikuma They don't appreciate what a feat that was at the time...
Aug 24, 2023
@pikuma Remember coming upon the Bruce Artwick graphics book in the Ventury, Ca library.
Aug 24, 2023
@pikuma I have the 2nd book, is so good
Aug 24, 2023
@pikuma Second from top has very master system box cover design 😅
Aug 23, 2023
@pikuma I remember hosting a mirror for the PDF version of this b book.
Aug 23, 2023
@pikuma Hey @pikuma care to share that beautiful piece of tech behind the books
Aug 23, 2023
@pikuma One of the few tech books I've read cover to cover (not the code) - the writing is accessible and entertaining, probably because it was first published in magazines - live this book.
Aug 23, 2023
@pikuma Is Graphics Programming Black Book still worth reading? I hear it mentioned a lot, but I looked inside and it's a bunch of 386 assembly.
Aug 23, 2023
@pikuma I also love The Black Art of 3D Game Programming by André LaMothe, thats the one that got me into programming for DOS
Aug 23, 2023
@pikuma who has the time to read all that, let alone write all that?
Aug 23, 2023
@pikuma 3dfx Quake still looks amazing, btw.
Aug 23, 2023
@pikuma The poster of the meme has to be too young to understand just how revolutionary those graphics were back when they came out.
Aug 23, 2023
@pikuma Sure, we'll just conveniently forget about 'decades' of graphics innovation and pretend like the graphics we have now were divine intervention.
Aug 23, 2023
@pikuma Those are some great books.
Aug 23, 2023
@pikuma Ah, the black book of an ancient wizard said to contain the spells to enchant mortals with marvels and miracles.
Aug 23, 2023
@pikuma I had the black book of 3d graphics programming if I recall
Aug 23, 2023
@pikuma Right? Peope literally cared about graphics in the early arcade and Atari scenes.
Aug 23, 2023
@pikuma I've only seen that Graphics book referenced as being one of those tomes that ought to be had...
Aug 23, 2023
@pikuma One of the top PC games of 1992, before Doom in 1993.
Aug 23, 2023
@pikuma Sir can you recommend any book that goes into details of implementing gaussian blur, deep glow, and similar effects found in video editing tools?
Aug 23, 2023
@pikuma I was gifted the Black Book when I was quite young.
Aug 23, 2023
@pikuma Too young to understand how long it took from drawing a line on a rastered screen to that via bitblitting and all the rest.
Aug 23, 2023
@pikuma Where are the Foley, Ferraro and OpenGL Red Book? 😉
Aug 23, 2023
@pikuma You're missing Foley & Van Dam.
Aug 23, 2023
@pikuma Don't forget Andries Van Dam
Aug 23, 2023
@pikuma Those books were daunting back in the day, nobody makes books quite as big as the graphics/games folk 😁
Aug 23, 2023
@pikuma I've been reading the newly released autobiography of Romero, it seems like Carmack wouldn't be the Carmack we know today if he didn't have the Abrash graphics programming books.
Aug 23, 2023
@pikuma There was one by Lamothe, Tricks of the 3D....
Aug 23, 2023
@pikuma Why is the Ferraro book so compact? Camera perspective or different edition? My copy is a 1200 page cinderblock.
Aug 20, 2023
@cmuratori Architecture is difficult, and most people have no idea how to approach it.
Aug 18, 2023
@NOTimothyLottes i am not quite sure what do you mean by subpixel scan? do you override the normal (refresh) scanout process?
Aug 18, 2023
@NOTimothyLottes How many passes do you need to produce this result?
Aug 16, 2023
@cmuratori Agree completely.
Aug 16, 2023
@cmuratori Strange, never had that problem with that waaaay older editor, called vim ;)
Aug 16, 2023
@cmuratori True and false, depends on the project and the compiler.
Aug 16, 2023
@tsoding So true, language are just the way to convey an idea, a concept, an intuition to the machine.
Aug 16, 2023
@tsoding Does it means learning algorithm and data structure?
Aug 15, 2023
@cmuratori I largely consider 'clean code' to mean that the system enables new content and new designs to be created with low code - ideally all at the same level of abstraction.
Aug 15, 2023
@cmuratori VSCode will end up going the way of all editors that aren't Vim or Emacs.
Aug 15, 2023
@cmuratori I do have both VS2022 and VS2019 on my machine, but I tend to use 2019 as the primary version.
Aug 15, 2023
@cmuratori Developers had no reason to uograde their machines every 6months so Microsoft gave them one
Aug 15, 2023
@cmuratori Does more code automatically mean more code paths? In the sense of different states your program can have? Or is it Just sth that is "typical".
Aug 15, 2023
@cmuratori Is there a good reason to use VS instead of VSCode?
Aug 15, 2023
@cmuratori Generally speaking that’s a good principle.
Aug 14, 2023
@cmuratori The answers to OP : install a plugin on top of VS to make it work !
Aug 14, 2023
@cmuratori It can't even Ctrl+A after some update a few monhts before, just the 2022 (VS2019 also got updates but didnot break like this).
Aug 14, 2023
@cmuratori Funny enough when you write OOP, language design makes you think that you write less code by using virtual methods.
Aug 14, 2023
@cmuratori Not to mention how modern software shamelessly assumes the available resources, Many people still use low end laptops and the performance of most modern IDE/code editors are so sluggish and ultimately hurts the life of these machines more.
Aug 14, 2023
@cmuratori Just today, in VS 2022, the semantic analyzer crashed on me.
Aug 14, 2023
@cmuratori This is the best metaphor (not ironically also about Microsoft) https://x.com/ocornut/status/1691052987605467137?s=20
Aug 14, 2023
@cmuratori My approach is to write code that I can come back to in a year or two and not want to throw my computer out the window.
Aug 14, 2023
@cmuratori vs2022 on Mac is virtually unusable
Aug 14, 2023
@cmuratori Performance is a feature.
Aug 13, 2023
@mike_acton prefix naming improves speed reading code because you do not need to retrace (go back) and check what variable is.
Aug 10, 2023
@NOTimothyLottes Very interesting "crosstalk from voltage inversion" artifact.
Aug 10, 2023
@tsoding https://www.youtube.com/watch?v=KzSaFFpBPDM&t=178s
Aug 04, 2023
@NOTimothyLottes I gotta ask, why use such condensed formatting for your code?
Aug 04, 2023
@mike_acton 0.0000002000108 accurracy with one iteration:
Aug 04, 2023
@mike_acton Interesting, but since float log2 and exp2 are newton raphsonable, in recent ip they tend to be machine instructions unto themselves
Aug 02, 2023
@pikuma Sad but true.
Aug 02, 2023
@pikuma Spoiler: GTE 👀
Aug 02, 2023
@pikuma I loved optimizing my low-level primitives into asm back in the day :)
Aug 02, 2023
@pikuma Ah, your mistake was in referring to PC APIs as “modern”
Aug 02, 2023
@pikuma Yet another indication of how much crap has been put between the programmer and their machine.
Aug 01, 2023
@pikuma Is that mode 13?
Aug 01, 2023
@pikuma Nice! You need to go deeper, next stop binary 🤣
Aug 01, 2023
@pikuma Are transformation matrices also made using assembler?
Aug 01, 2023
@pikuma On what platform?
Aug 01, 2023
@pikuma doing stuff like this in assembly is so satisfying
Aug 01, 2023
@pikuma I usually find really dificult to use any piece of modern software.
Aug 01, 2023
@pikuma but ofc
Aug 01, 2023
@pikuma Any % triangle is a speedrun category lol https://youtu.be/K84VkRkk8Ns
Aug 01, 2023
@pikuma I was working on realtime 3d graphics when the first PC 3d cards were coming out.
Aug 01, 2023
@pikuma Hmm, GTE+GPU, or SH2/SCU/68K+VDP1? 😉
Aug 01, 2023
@pikuma This is interesting.
Aug 01, 2023
@pikuma If you can initialize DirectX you can do anything.
Aug 01, 2023
@pikuma But after that it is difficult
Aug 01, 2023
@pikuma 3 days latter you are making an bare-metal 3D UEFI game
Aug 01, 2023
@pikuma How?
Aug 01, 2023
@pikuma a plain framebuffer and true vector ISA would be pure joy - if you could have the performance of modern machines without all the bloat and noise..
Jul 31, 2023
@mike_acton // what the fuck?
Jul 31, 2023
@mike_acton Wild.
Jul 31, 2023
@mike_acton That's a nice precision but shouldn't we just use rsqrtss ? It's less precise but surely faster in recent microarchitectures.
Jul 31, 2023
@mike_acton degree-2 one is also fun, 86 fold improvement.
Jul 26, 2023
@tsoding @its_bvisness Programming, motherfucker, do you speak it?
Jul 26, 2023
@tsoding Very true, there’s a saying - keep doing it if you want to be good at it.
Jul 21, 2023
@MissQuickstep Not only.
Jul 21, 2023
@MissQuickstep Could be, but with linear order and linear layour cs should have coalesced writes and no obvious problems.
Jul 09, 2023
@NOTimothyLottes https://github.com/wyattscarpenter/wu
Jul 03, 2023
@mike_acton long explicit names are the best, specially since almost everyone will use autocompletion anyway
Jul 03, 2023
@tsoding more like important to understand design patterns, mathematical logics right?
Jul 02, 2023
@mike_acton I deeply hate people that don't spend time on naming things.
Jul 02, 2023
@mike_acton I like it that way.
Jul 02, 2023
@mike_acton Agree! #1 and #3 both apply to me, I'm in the middle on #2 - I try not to make the perfect the enemy of the good, but I do spend some cycles (somewhat proportional to the importance of the thing) to do a good job on naming, not always just the first name that comes into my head.
Jul 02, 2023
@mike_acton A worthy opponent of D3D11’s VPAndRTArrayIndexFromAnyShaderFeedingRasterizer!
Jul 02, 2023
@mike_acton Also, to share one of my variable naming pet peeves, I'm a big fan of listing units in variable names.
Jul 02, 2023
@mike_acton At one of the places I worked, we abhorred abbreviations in variable names because:
Jul 02, 2023
@mike_acton i typically come up with a better name after developing and using the system further.
Jul 02, 2023
@mike_acton This is the way.
Jul 02, 2023
@mike_acton I agree! Had this recently where I was told in a PR to change member names and parameters from eg exception to err and request to req.
Jul 01, 2023
@NOTimothyLottes @Jonathan_Blow i designed a language Beads, which uses a graph DB, has no memory allocation, super modular, approaches this minimalism as close as humanly possible, but billable hour / job security seeking programmers refuse to try it
Jul 01, 2023
@NOTimothyLottes Many games used to be like that, at least the ones without dynamic content, mods, etc...
Jul 01, 2023
@NOTimothyLottes I was calling it "disoriented programming" just the other day.
Jul 01, 2023
@NOTimothyLottes NOP is ideal.
Jul 01, 2023
@NOTimothyLottes Can teach it in abstinence-only programming classes!
Jul 01, 2023
@NOTimothyLottes Looks like a koala
Jul 01, 2023
@NOTimothyLottes Best software is absense of it:
Jul 01, 2023
@NOTimothyLottes c++ to √c
Jul 01, 2023
@NOTimothyLottes Folks, they're calling it "computer oriented programming".
Jul 01, 2023
@NOTimothyLottes
Jul 01, 2023
@mike_acton No hate at all Mike! 🙏
Jul 01, 2023
@mike_acton Coming from C89 repositories with most functions named with a max of 8 chars, I appreciate that...
Jul 01, 2023
@mike_acton I hate reading code with the same var/func names due to limited tech vocabulary.
Jul 01, 2023
@mike_acton 2 is a mistake though, you need to think about the mental cycles of the thousand of readers of your code.
Jun 30, 2023
@NOTimothyLottes Would be nice to talk a full presentation about this topic, but people want me to show cool tech and pretty pixels instead.
Jun 30, 2023
@NOTimothyLottes Once in a while people need to be reminded to stop the bloat, understand the machine guts and be self aware about productive process
Jun 30, 2023
@NOTimothyLottes I like this, given I never write code any more.
Jun 30, 2023
@NOTimothyLottes $4e71
Jun 29, 2023
@mike_acton @2DArray Oh nice, I'd love to bridge the gap between my lua mesh generator and vertex shader while staying in lua.
Jun 27, 2023
@mike_acton Am I right in thinking this is running the entire Pico8 program at every pixel and then discarding all but the specific pixel it cares about? This is...
Jun 20, 2023
Or for an APU, a way to have the storage device write direct to DRAM in pages setup for use on the GPU, because anything the CPU writes that the GPU reads is stuck on the strangled snooping bus or the strangled WC buffer limit on store.
Jun 20, 2023
@NOTimothyLottes Great thread!
Jun 20, 2023
@NOTimothyLottes On Linux, NVIDIA has a very good UVM.
May 06, 2023
@NOTimothyLottes Thanks for digging those up! Great stuff, very inspiring.
May 04, 2023
@NOTimothyLottes This is when I learned about your work and found it incredible.
May 03, 2023
@NOTimothyLottes Great to see these return.
May 03, 2023
@NOTimothyLottes I remember watching all of these blog entries fondly ❤
May 03, 2023
@NOTimothyLottes Is the blog still up somewhere?
May 03, 2023
@NOTimothyLottes Did you write an engine called Atom? Talked about it on the http://OpenGL.org forum?
May 03, 2023
@NOTimothyLottes I remember all those fondly.
May 03, 2023
@NOTimothyLottes My former thesis advisor was a big proponent of forth.
Apr 27, 2023
@kenpex The "What if we're in an apocalypse?" part is very 'whatever' to me, but in general I find this and similar projects really cool!
Apr 26, 2023
@kenpex I was curious about what it would take to recreate today’s tech “from scratch” if a giant EMP went off.
Apr 26, 2023
@kenpex This is actually a fantastic project though.
Apr 26, 2023
@kenpex Some people have too much time for hobby projects.
Apr 26, 2023
@kenpex I find the context hilarious, but Forth as asm-level-yet-very-usable-mini-OS has been done, as the boot firmware for OLPC (http://laptop.org) for many years.
Apr 25, 2023
@kenpex [Asimov vibes intensify]
Apr 25, 2023
@kenpex Indeed.
Apr 02, 2023
@tsoding personally i should stop learning and start actually doing something, i'm too lazy and scared to open a visual studio
Mar 31, 2023
@tsoding What's difficult for me to understand is the how to build anything from a blank canvas - like a paintings canvas I don't see an editor the same way - visually speaking, making apps within Unity and creating things with Blender is becoming the route I'm choosing.
Mar 22, 2023
@skdh My ex went through an entire grad program for science/math/environmental journalism, thankfully he does more magazine-style stuff for the CA university system, not press releases
Feb 21, 2023
@fchollet Me: *Trying to resist the urge of invoking a book that has become a meme for symbolizing truth being diluted in a dystopian society using a math equation as the primary example, despite it feeling poetically relevant when discussing machines that spew both truth & lies*
Feb 20, 2023
@fchollet Yes, but LayerStand just doesn't have the same ring as LayerNorm
Feb 20, 2023
@fchollet Yes, it was indeed confusing.
Feb 20, 2023
@fchollet normalization is only when it fits inside the range [0,1]?
Feb 20, 2023
@fchollet You've answered a question I've had for a while, thanks
Feb 20, 2023
@skdh The first aim of a press release is to get journalistic attention.
Feb 19, 2023
@skdh resuming, the problem is between science and journalism, mainly the chief editor's dismissive care for their science journalist.
Feb 19, 2023
@skdh Why you don't get more attention than NDT I'll never understand
Feb 19, 2023
@skdh I watch your YouTube channel and I respect the work you do and you are certainly erudite but you still believe that CO2 is causing climate change and that wind and solar will actually work.
Feb 19, 2023
@skdh You do a good job though.
Feb 19, 2023
@skdh To quote the Movie The Right Stuff, “without bucks, no Buck Rogers”.
Feb 19, 2023
@skdh Q.
Feb 19, 2023
@skdh That says a lot about a lot.
Feb 19, 2023
@skdh Hang in there - this is really important stuff.
Feb 19, 2023
@skdh From my experience, the people who write the press releases have no knowledge of the field, and the scientists whose papers lead to press releases are usually not too concerned with that
Feb 19, 2023
@skdh This is most problematic in physics.
Feb 18, 2023
@skdh So who approves of those releases?
Feb 18, 2023
@skdh Science communication is probably a tough cookie to crack.
Feb 18, 2023
@skdh Thank you for the work you do.
Feb 18, 2023
@skdh To you have a sense about what the incentives are here that have lead to this equilibrium?
Feb 18, 2023
@skdh Is there a way to attach “sources” link to your YT episodes? If there is and you already do, where do I find them?
Feb 18, 2023
@skdh All reporting is hard, there used to be an understanding that powerful people/academics lie and the job of the reporter was to fact-check things like press releases by contacting other members of the field! Now the media are stenographers not reporters!
Feb 18, 2023
@skdh You almost got it! Have you read „Manufacturing Consent“ by Noam Chomsky? It’s not exactly about science publications, but it reveals a bunch of mechanisms that make the press even worse then you now know it is (at least I hope you extrapolate your findings to press in general)
Feb 18, 2023
@skdh A useful rule of thumb is to assume that general news reporters lose 10 IQ points when reporting on scientific topics.
Feb 18, 2023
@skdh University PR blurbs on research conducted at them are often seem to have been produced by the Creative Writing Dept.
Feb 18, 2023
@skdh Even Ole Roemer did face the weak press release about his discovery 1676 of the finit light speed by yearlong observing Jupiter moons.
Feb 18, 2023
@skdh Where is this feed of news not fit for The News? 🧟‍♂️
Feb 18, 2023
@skdh I think the same is true for "studies".
Feb 10, 2023
@tsoding you’ve just called out 60% of the cs community
Jan 08, 2023
@SebAaltonen Very nicely put together, but one big omission (imo) is the split of cache on said 144MB SKUs, since they use two CCDs and historically (seen in some benchmarks too) games hate being split, they like a single cache pool for a group of cores they work on and thats more or less it.
Jan 07, 2023
@SebAaltonen Compiling translation units (cpp files) don’t benefit generally by large cache.
Jan 07, 2023
@SebAaltonen well, this is about to change in llvm at least https://llvm.org/devmtg/2019-10/slides/Ganea-OptimizingBuildesOnWindows.pdf
Jan 06, 2023
@SebAaltonen Caches work with physical addresses.
Jan 06, 2023
@SebAaltonen Seb, for the next gen consoles, what is your AMD CPU wishlist? 16 core CPU? Big cache? 3D V-cache as you said?
Dec 29, 2022
@rfleury @AbnerCoimbre @sssmcgrath Thanks for sharing this.
Dec 29, 2022
@rfleury @AbnerCoimbre @sssmcgrath Go open-source
Dec 19, 2022
@NOTimothyLottes cool!
Dec 16, 2022
@tsoding (? "Is this a good place to start")
Dec 16, 2022
@tsoding What's the difference?
Dec 16, 2022
@tsoding learning languages vs learning programming
Dec 15, 2022
@NOTimothyLottes Have you tried setting the resolution from Device Manager-> Monitor Name-> Properties ?
Dec 13, 2022
@rfleury @mintyModulo It's because most debuggers suck, not to mention most are text based and not GUI based
Dec 13, 2022
@rfleury @mintyModulo thanks, unix
Dec 12, 2022
@EricLengyel @fatlimey ‘Complexity’ seems to work, sticking with the real/imaginary naming
Dec 12, 2022
@EricLengyel @fatlimey Imaginarity.
Dec 12, 2022
@EricLengyel @fatlimey Intuition tempts me to call it phase.
Nov 23, 2022
@SebAaltonen One of the biggest roadblocks when I was trying to learn Vulkan was the descriptor API.
Nov 23, 2022
@SebAaltonen @SheriefFYI When I started with modern graphics APIs (i.e., Vulkan) I felt like I was not understanding something because of how far it was from the idea of 'close to the metal' that intro readings stated.
Nov 23, 2022
@SebAaltonen Another Vulkan W.
Nov 23, 2022
@SebAaltonen Finally, was waiting on this one.
Nov 23, 2022
@SebAaltonen AFAIK that is only fully true on AMD GPUs, everyone else has to go through some pain to implement this extension.
Nov 23, 2022
@SebAaltonen This extension still lacks the ability to create descriptors in shaders from buffer memory.
Nov 22, 2022
@SebAaltonen Few more decades and will finally be back to where we never should have left from - writing HW registers.
Nov 22, 2022
@SebAaltonen "killing the graphics api" - what does that mean? how do you "kill" an api?
Nov 22, 2022
Hopefully in the future the existing Vulkan descriptor APIs can be removed.
Nov 22, 2022
@SebAaltonen Hooley Dooley
Nov 22, 2022
@SebAaltonen Yes! Please!!
Nov 21, 2022
@rfleury @AllenWebster4th @MemoryArenaMain just passing by
Nov 15, 2022
@tom_forsyth So ein schlauer Mann nutz seine Intelligent um so einen Schwachsinn zu programmieren.
Nov 14, 2022
@tom_forsyth 1st Oculus buyer, built non-tri engine rendering pixel perfect AA into warped space directly (>120 Hz on laptop).
Nov 14, 2022
@tom_forsyth The smart move would have been renaming the whole company to Oculus.
Nov 04, 2022
@NOTimothyLottes Welcome Not Back! 🤘🏻♥️
Aug 30, 2022
@rfleury It is impressive how quickly they're managing to trash decades of work improving the user experience when they decided Windows should be "free" and that their former customers would be the product they sold.
Aug 20, 2022
@tsoding Read sicp ! Watch the lectures ! https://en.wikipedia.org/wiki/Structure_and_Interpretation_of_Computer_Programs
Aug 19, 2022
@tsoding This is why I learn Hashkell.
Aug 04, 2022
@SebAaltonen Painkiller did that
Apr 13, 2022
@SebAaltonen agreed
Apr 13, 2022
@SebAaltonen YEEEEES!
Apr 13, 2022
@SebAaltonen While I agree when it comes to stuff built for game engines.
Apr 13, 2022
@SebAaltonen Oh, is that what ECS does? Give me control over execution flow?
Apr 13, 2022
@SebAaltonen Code Snippets > Libraries > Frameworks
Jan 28, 2022
@ID_AA_Carmack Running with this idea: You'd still need the kernel to map memory access to a "local" memory.
Jan 28, 2022
@ID_AA_Carmack You're talking about having some sort of global address registry for all software and that is gross.
Jan 28, 2022
@ID_AA_Carmack Seems like an @rsnous sort of thing: as part of releasing your software, you request an address space range for it to run in the Universal Coordinated Address Space.
Jan 28, 2022
@ID_AA_Carmack Apparently the Internet is estimated to store about 50 zettabytes of code+data.
Jan 28, 2022
@ID_AA_Carmack Also, 64-bit allows having buffers that never need a realloc when growing, with interior pointers etc, which enables all sorts of cool algorithms / systems / memory managers
Jan 27, 2022
@ID_AA_Carmack I was wondering - when building assets you could pre-bake them to fixed addresses and let virtual memory allocate real memory at that space.
Jan 27, 2022
@ID_AA_Carmack It can also streamline debugging iteration, for example, you'd be able to re-use data breakpoints, hash pointers consistently, etc.
Jan 27, 2022
@ID_AA_Carmack That would kill security updates.
Jan 27, 2022
@ID_AA_Carmack With memory safe languages you don't have to sacrifice security to do this either :)
Jan 27, 2022
@ID_AA_Carmack UPCs on barcodes have to be registered with an international organization so there are no collisions on physical products.
Jan 05, 2022
@Jonathan_Blow Good points.
Jan 04, 2022
@Jonathan_Blow perhaps a topic for your next lecture?
Jan 04, 2022
@Jonathan_Blow My college writing teacher said almost every class that a shitty first draft was required for a good final paper
Jan 04, 2022
@Jonathan_Blow It's particularly frustrating when talking about science.
Dec 27, 2021
@EricLengyel It looks like a wrapper interface needs to be developed to smooth out the differences.
Dec 27, 2021
@EricLengyel IIRC, there is also a difference with saturate and clamp...
Dec 26, 2021
@EricLengyel WGSL (WebGPU) has its own story as well 🤦‍♂️
Dec 22, 2021
@dneto1969 @redgpus @cmuratori @Jonathan_Blow @johnkslang Oh, come on.
Dec 22, 2021
@cmuratori Yeah, the state is awful, and the shader language they're coming up with is too.
Dec 22, 2021
@dneto1969 @redgpus @cmuratori @Jonathan_Blow @johnkslang Oh, come on.
Dec 21, 2021
@cmuratori I read this page and it's very bizarre.
Dec 21, 2021
@cmuratori How would you feel about writing shaders in Rust?
Dec 16, 2021
@cmuratori @Jonathan_Blow I'm selling an NFT of this conversation.
Nov 09, 2021
@ID_AA_Carmack This sounds like a translation problem.
Nov 09, 2021
@ID_AA_Carmack This is (slowly) becoming fun! Want to join the party? :)
Nov 09, 2021
@ID_AA_Carmack Since libusb has already been mentioned, but not the pcie equivalent, you're looking for VFIO.
Nov 09, 2021
@ID_AA_Carmack Serial-over-USB is a common one for scientific equipment.
Nov 08, 2021
@ID_AA_Carmack Isn't that the responsibility of the hardware drivers, or are you proposing to have another layer between the hardware and the OS? Or perhaps it represents an aspect of the OS (Linux?) that is under-developed?
Nov 08, 2021
@ID_AA_Carmack Isn't that more due to a lack of standardized low-level apis? Or the lack of interest from hardware producers to actually provide software developers with more than hardware specs?
Nov 08, 2021
@ID_AA_Carmack Interesting recent development has been 'writing' hardware in Python, e.g.
Nov 08, 2021
@ID_AA_Carmack LibUSB exists and has even Python bindings.
Nov 08, 2021
@ID_AA_Carmack Is libusb not the answer to talking to custom USB devices without all the effort of writing specific drivers?
Nov 08, 2021
@ID_AA_Carmack Have you seen http://cfu-playground.rtfd.io/ or https://workshop.fomu.im/ ?
Nov 08, 2021
@ID_AA_Carmack Spent the weekend learning V4L2 to do some video decoding on the Jetson Nano.
Oct 04, 2021
@EricLengyel I would’ve put money on Chrome
Oct 04, 2021
@EricLengyel Not enuf GPUs
Oct 03, 2021
@EricLengyel Okay, I'm super curious - what _was_ Photoshop doing?
Sep 21, 2021
@Jonathan_Blow Are we talking about low level tech or just the tools used to debug and visualize problems in code?
Sep 21, 2021
@Jonathan_Blow Not sure how well they fit into your category, but, coverage guided fuzzing, dynamic/static race detection, Valgrind/ASan/MSan, TLA+, Paxos/Raft, CRDT-s
Sep 21, 2021
@Jonathan_Blow How about other engineering fields? It seems most of them had periods of significant advancements during the 20th century; but appear to be not advancing at that rate today.
Sep 20, 2021
@Jonathan_Blow is there anyone/any org doing work you think to advance the state of programming ? Anything you think is interesting / worth taking a look at?
Sep 20, 2021
@Jonathan_Blow curious if programmers will ever start using waveform debuggers in a widespread way like logic engineers do
Sep 20, 2021
@Jonathan_Blow Big part due to corporations taking over the software industry.
Sep 20, 2021
@Jonathan_Blow As a younger programmer - I think the gravitation back towards these archaic CLI tools mainly comes from the fact that the newer ones have so much hardware overhead that vastly outpaces their human convenience
Sep 20, 2021
@Jonathan_Blow What about crash reporting systems like crashpad paired with aggregation systems like Mozzila's Soccoro and not actively horrible debuggers like msvc? I'd say the state is much better now than back in the day.
Sep 20, 2021
@Jonathan_Blow hmm, if anything I could say about current state of programming is we still program in "2D programming" and we should move to "3D".
Sep 20, 2021
@Jonathan_Blow I guess the main improvement is that now you can ship with the same codebase to multiple platforms without rewriting it (React, Unity).
Jul 09, 2021
@ThatcherUlrich @Jonathan_Blow @ID_AA_Carmack I’m sure there’s a typo in word “safest”, you wanted to say “most insecure and unsafe”.
Jul 04, 2021
@BuschnicK @Jonathan_Blow Maybe the problem here is that science and art does not mean the same for both of you.
Jun 24, 2021
@Jonathan_Blow Test-driven development, done properly, helps enforce the YAGNI principle (You Ain't Gonna Need It, so don't implement it).
Jun 23, 2021
@Jonathan_Blow Once I realized how much being a programmer is like being a blacksmith, things became much clearer.
Jun 22, 2021
@Jonathan_Blow ditto
Jun 22, 2021
@Jonathan_Blow Trial and error is the oldest, and most effective, problem solving method known to man.
Jun 22, 2021
@Jonathan_Blow Code is a snapshot in time primarily based on requirements and knowledge AT THE TIME.
Jun 22, 2021
@Jonathan_Blow if it makes you feel better, i lost the source code for the latest version of a tool i wrote 6 years ago, and now i've discovered an annoying bug in it.
Jun 22, 2021
@Jonathan_Blow In my experience “what is required” often requires an omnipotent oracle, and even then is transient.
Jun 22, 2021
@Jonathan_Blow So what you're saying is you built something that works AND learnt from it? Sounds like a good programmernto me.
Jun 22, 2021
@Jonathan_Blow Jai post reactive? I think its okay to over estimate yourself this is only way to grow.
Jun 22, 2021
@Jonathan_Blow This recently happened to me in a 2y timeframe.
Jun 22, 2021
@Jonathan_Blow I'm not sure that good programmers produce good code.
Jun 22, 2021
@Jonathan_Blow I usually get my wakeup call when I browse my old code from the 90s...
Jun 22, 2021
@Jonathan_Blow The fight between fun code and boring practical code.
Jun 22, 2021
@Jonathan_Blow It's even better when it happens live on stream.
Jun 22, 2021
@Jonathan_Blow We stand on the shoulders of giants.
Jun 22, 2021
@Jonathan_Blow Brute force (as in not more complex than necessary) is usually the best you can do at any point in time.
Jun 22, 2021
@Jonathan_Blow Had the same, but now I have reduced turnaround time for that, around 1-12 months, in the last few years.
Jun 21, 2021
@Jonathan_Blow Nobody can know everything.
Jun 21, 2021
@Jonathan_Blow And then you think "It's been four years since I wrote this trash code, I've grown alot since then" and the cycle continues
Jun 21, 2021
@Jonathan_Blow I’m the best programmer because I never realize my mistakes
Jun 21, 2021
@Jonathan_Blow I was writing a function that iterated over cells in a world map.
Jun 21, 2021
@Jonathan_Blow I recently spent a weekend writing a feature my database already had, and didn't find out until I was writing documentation for the open source library.
Jun 21, 2021
@Jonathan_Blow it's hard to imagine 'thinking you're good at something', all the people who are great at something i know of think they fuckin suck at it
Jun 21, 2021
@Jonathan_Blow Maybe you were good, and now you are simply better.
Jun 21, 2021
@Jonathan_Blow I thought I was good too...
Jun 21, 2021
@Jonathan_Blow This is why I bang on about not trying to write the code right first time.
May 29, 2021
@AndriyTyurnikov @TylerFCloutier @Jonathan_Blow It's a sphere, you can get 1 in one dimension and 0 in all the others...
May 07, 2021
@EricLengyel Serious applause and kudos!
May 04, 2021
@EricLengyel awesome!
May 04, 2021
@EricLengyel You sir are my hero
May 04, 2021
@EricLengyel
May 04, 2021
@EricLengyel @threadreaderapp please unroll
May 04, 2021
@EricLengyel Did the computer lab catch on?
May 04, 2021
@EricLengyel Macsbug was freaking work of genius imho @jdeamattson
May 04, 2021
@EricLengyel they let you win the contest cuz they felt sry 4 u staying in a computer lab all night instead of with friends
Dec 07, 2020
@SebAaltonen I ended up going with an approach where I read the "chunk data" and then emit to an indice+mesh buffer and write the indirect dispatch from a compute shader.
Oct 31, 2020
@Jonathan_Blow @rfleury has been working on Dion which will be presented at @handmade_seattl which looks like a very interesting take on visual programming languages
Oct 04, 2020
@EricLengyel @TimSweeneyEpic I still think the best is X into, Z up and Y right.
May 15, 2020
@rfleury @thnewlands @kevinwatters this is really special ty
May 15, 2020
@cullend @GolerGkA @star_door_ @kevinwatters To clarify, the mouse controls are just a small editor feature, not really a demonstration of the most important parts of the code editing.
Apr 08, 2020
@rfleury Just a conversation on this topic today.
Apr 07, 2020
@rfleury I'm that kind of person who asks the "why" of things, and how they were made from its core, but by not "re-inventing the wheel" you can save a lot of time.
Apr 07, 2020
@rfleury Nowadays there are a lot of software done and debugged to be used, the way i see that fact is, that thanks to that software you can create new software faster....
Feb 17, 2020
@EricLengyel When I was young my dad taught me to read multiplication as “of”.
Feb 17, 2020
@EricLengyel While I can't say I ever looked into into, introductory physics taught me that just about any formula complex enough can be derived
Feb 17, 2020
@EricLengyel I hope this a prelude for a tweetorial!
Feb 17, 2020
@EricLengyel @Atrix256 I learned the inner product in university but I had to wait another 10 years for me to deep dive into outer products on my own.
Feb 17, 2020
@EricLengyel Had to look up Grassman, but I remember the parallelogram-area as one of the key elements in the buildup towards Vector algebra.
Feb 17, 2020
@EricLengyel Derived in high school (higher level maths only).
Feb 17, 2020
@EricLengyel I was tought rather this way: dot product is linear.
Feb 17, 2020
@EricLengyel I saw them in a CS cursus, so we obviously didn't saw algebra behind it, but I remember a few way to retrieve them with some math, I'm not sure how it relates to other stuff.
Feb 17, 2020
@EricLengyel What's this supposed to mean - these _are_ basic definitions.
Feb 17, 2020
@EricLengyel In the absence of exterior algebra, you can also have students discuss why symmetry, bilinearity, and positivity are natural geometric properties for any inner product.
Feb 17, 2020
@EricLengyel We were taught these in geometric terms.
Feb 17, 2020
@EricLengyel Yup, in high school and college.
Feb 17, 2020
@EricLengyel I don’t even know how to answer a question like this.
Feb 17, 2020
@EricLengyel Unfortunately, I was.
Feb 17, 2020
@EricLengyel People were taught things like this in secondary/high school??
Dec 25, 2019
@EricLengyel My problem with the anti wedge product is that it needs an arbitrary pseudoscalar to be defined.
Dec 25, 2019
@EricLengyel precisely the reason I bought FGED1! looking forward to 3!
Dec 25, 2019
@EricLengyel When you say GA community do you mean that abstractly or are you on a mailing list? Is there a better book than the Kaufman series Geometric Algebra for computer science that covers this? I really want to get into GA
Dec 25, 2019
@EricLengyel Yes please!
Dec 21, 2019
@richgel999 @PottuVoi Huh! What was its GBuffer like?
Dec 05, 2019
@EricLengyel @bdiamand I imagine there might be some use cases for a disjoint_cast<>() for the implementation of custom allocators.
Aug 29, 2019
@rfleury You can still have the representation be textual but have the ide give you tooling of this kind.
Aug 29, 2019
@rfleury For a moment I thought you were revealing your new lisp-like
Aug 29, 2019
@rfleury Are you familiar with @stevekrouse and his http://futureofcoding.org community?
Aug 29, 2019
@rfleury Would you consider tools like Unreal's blueprints something pointing in that direction?
Aug 29, 2019
@rfleury I was having similar thoughts about this.
Aug 29, 2019
@rfleury Why aren't we working straight in assembly code? ;)
May 06, 2019
@SebAaltonen TATAS (read-only inner-loop) is a much better pattern for a multicore system with multiple caches (https://github.com/concurrencykit/ck/blob/master/include/spinlock/fas.h#L77).
May 06, 2019
@SebAaltonen You can find many implementations here, including fair and scalable locks: https://github.com/concurrencykit/ck/blob/master/include/spinlock/fas.h
May 06, 2019
@SebAaltonen I have one suggestion: 1st stage you measure how long pause takes.
May 06, 2019
@SebAaltonen @kenpex Its a shame there is no mm_pause in the BAD case - it’s not obvious how much of the win comes from not using CAS vs pausing.
May 05, 2019
@SebAaltonen Interesting.
May 05, 2019
Don’t use spinlock for waits.
May 05, 2019
@SebAaltonen @septagh I would love to see a comparison to ARM64, from what I know its pretty similar but would be anyways interesting.
May 05, 2019
@SebAaltonen Got a link to the slide deck?
Jan 14, 2019
@EricLengyel @Atrix256 @paniq @arabek @kebby This "knowledge obfuscation" is the worst.
Jan 13, 2019
@EricLengyel @TMFAshrafEassa @Atrix256 @paniq @arabek @kebby “What one fool can do, another can”
Jan 08, 2019
@EricLengyel @Atrix256 @paniq @arabek @kebby A lot of it isn't even necessarily arcane.
Jan 07, 2019
@Atrix256 @paniq @kebby I seriously need to update my knowledge.
Jan 07, 2019
@EricLengyel @Atrix256 @paniq @kebby @EricLengyel makes me feel less stupid.
Jan 07, 2019
@paniq @Atrix256 @kebby maybe some day we'll reach levels of star trek's idgaf about money utopia.
Jan 07, 2019
@paniq @Atrix256 @kebby wasn't cryptography deemed to be doomed with the dawn of quantum computing?
Jan 07, 2019
@paniq I call a strawman.
Jan 07, 2019
@paniq It totally does though.
Jan 04, 2019
@SebAaltonen We in my team practice exact rules in our JavaScript codebase as my 5 years experience built confidence about the right way.
Jan 03, 2019
@SebAaltonen I didn’t understand everything, but what I did understand was very helpful.
Jan 02, 2019
@SebAaltonen @dan_abramov Please someone put this in an article or blog somewhere, I want to read it now n then.
Jan 02, 2019
@SebAaltonen That's a great read! I only disagree with 1.
Jan 02, 2019
@SebAaltonen Nice thread, altougth much can be generalized to „try to be pragmatic“, nice detailed list, which I naturally not completetly agree, especially I see no need for raw new/deletes anymore, when there are smrt_ptr, containers and allocaters.
Jan 02, 2019
@SebAaltonen Thank you for this.
Jan 02, 2019
@SebAaltonen Man....threads like this reminded me that A) I'm glad I use Ladder Logic for my programming and B) Ladder Logic is not "real programming".
Jan 02, 2019
@SebAaltonen Absolutely love this thread.
Jan 01, 2019
@SebAaltonen Νo surprise that most game devs had similar experiences.
Jan 01, 2019
@SebAaltonen There is a useful term for what you describe as “entanglement” that I learned recently - it is called “cyclomatic complexity” - https://en.m.wikipedia.org/wiki/Cyclomatic_complexity
Jan 01, 2019
@SebAaltonen is that really "highly controversial"? I can think quite a few things to say I suspect would rank above it
Jan 01, 2019
@SebAaltonen Please send this tweet back in time 20 years! it would have brought me some comfort in my c++ days
Jan 01, 2019
@SebAaltonen @mmalex Funny how install base changes architecture.
Jan 01, 2019
@borland @SebAaltonen No, he is specifically talking about DOD approach with priority on fast iteration and high performance.
Jan 01, 2019
@SebAaltonen Sorry, but for many people this is going to look like “lets all program in assembly” with “assembly” changed to “highly optimized cache-aware multithreaded DOD code”.
Nov 12, 2018
@rfleury Good software design for hardware and for its human maintainers aren’t mutually exclusive.
Aug 16, 2018
@EricLengyel Very good, I wish more people used this chart! (and yes, I just used it)
Aug 15, 2018
@EricLengyel What if I do *not* know what I'm talking about? :)
Jun 28, 2018
@EricLengyel Same goes for pressing Delete when the rest of the line is all deleted.
Jun 28, 2018
@EricLengyel Someone somewhere is sweating “oh boy, that was close - at least we can still override the arrow keys on our regon specific number input field”
Jun 28, 2018
@EricLengyel It’s the first thing I turn off in any terminal or VIM setup
Apr 25, 2018
@mike_acton More speed-up Q
Apr 25, 2018
@mike_acton Can we get it for cheaper as addition/byproduct to something else we're doing.
Apr 25, 2018
@mike_acton @ID_AA_Carmack 1, 2, 3, 4, 5, 6, 6…
Apr 25, 2018
@mike_acton Aras approximator: can we delete that code already? :)
Apr 25, 2018
@mike_acton I like the aproximate results line :)
Apr 25, 2018
@mike_acton 'use a small fifo'? What does this mean?
Feb 18, 2018
@SebAaltonen @bonzajplc Yes.
Feb 03, 2018
@tom_forsyth @EricLengyel @joeludwig I suppose it depends on how it's said but variants of "why don't/didn't you..X?" I might mean as "This is probably obvious but why dismiss X?"
Jan 14, 2018
@tom_forsyth @TimSweeneyEpic Also, this diagram is clearly talking about the up direction in world space, but neither DirectX nor OpenGL define a world-space up direction *at all*.
Jan 14, 2018
@tom_forsyth @TimSweeneyEpic Tim, you made the right decision to use Z-up in world space.
Jan 03, 2018
@EricLengyel Software patents are evil.
Dec 29, 2017
@EricLengyel Software is math.
Dec 29, 2017
@EricLengyel Let's get back to the original intent.
Dec 29, 2017
@EricLengyel If software patents applied for a much shorter time (say 3-5 years), I'd be right there with you.
Dec 29, 2017
@EricLengyel If it's something of significant complexity wouldn't that already protect your work? Wouldn't that be enough?
Nov 17, 2017
@EricLengyel I think often it's good enough to not include system headers in your own headers, but only .cpp where needed (and maybe own headers that are only used in a few .cpp's)
Nov 17, 2017
@EricLengyel A lot of that comes down to proper usage of C++.
Nov 17, 2017
@EricLengyel on the other hand it is sad what is considered blazing fast in C++ compiler world.
Nov 17, 2017
@EricLengyel Just curious, what is the build system involved?
Nov 14, 2017
@SebAaltonen @ScottMcMillan0 @kingsamj @EricLengyel Thanks! Very helpful to know
Oct 25, 2017
@ocornut I’m hyperventilating already
Aug 18, 2017
@EricLengyel Everyone had this "If I negate this or that value, rendering looks ok"-moment in his life.
Aug 18, 2017
@EricLengyel I know what they mean.
Aug 18, 2017
@EricLengyel Then hurry up and release FGED2!!!
Aug 18, 2017
@EricLengyel I mean, it's a hierarchy right.
May 27, 2017
@EricLengyel @Atrix256 One of my favs.
May 26, 2017
@EricLengyel @dsuoch Yeah, this is one of the things coworkers hate me for
May 26, 2017
@EricLengyel Otherwise UB if hi == INT_MAX and lo == INT_MIN
May 26, 2017
@EricLengyel Shouldn't that be `unsigned(x)-unsigned(lo) <= unsigned(hi)-unsigned(lo)`
Apr 14, 2017
@EricLengyel We do take Unreal editor crashes seriously, not acceptable!
Apr 14, 2017
@EricLengyel @sehurlburt Yeah, what's up with that? Why do people have such a low bar of quality for internal tools?
Apr 14, 2017
@EricLengyel @waddlesplash that goes for graphics drivers as well.
Apr 13, 2017
@EricLengyel Even Maya crashes far too often for a pro tool.
Apr 13, 2017
@EricLengyel So very true...
Apr 13, 2017
@EricLengyel In my experience, that has been the case for every single tool ever made (not just editors) since forever :/
Apr 13, 2017
@EricLengyel @sehurlburt After reading @Code_Analysis's PVS-Studio blog I wonder how the hell anything works on my PC :D More should use it, tiny typos can be fatal.
Apr 13, 2017
@EricLengyel see also: 3D modelers, video editors, audio editors 😭
Dec 15, 2016
@EricLengyel @JesseRMeyer Antivectors sound evil.
Dec 09, 2016
@EricLengyel Different again for web fonts, where you care about security and don't generally distribute fonts w/ lots of unused glyphs,
Oct 03, 2016
@EricLengyel the story of my life lately.
Oct 02, 2016
@EricLengyel smells a little bit like the world I live in lol
Oct 02, 2016
@EricLengyel It was tested and worked, but later changes in other bits broke it, and they didn't have automated test coverage.
Oct 02, 2016
@EricLengyel yuuup
Feb 01, 2015
@EricLengyel I was snarking about VC++'s start-up speed in 1999.
Dec 20, 2014
@EricLengyel @ben_nuttall Gives me the heebie jeebies since overflow is undefined behaviour in C.
Apr 05, 2014
@ericlengyel Oh yes ! +1
Apr 05, 2014
.
Apr 05, 2014
@EricLengyel Sounds like Knuth's literate programming.
Apr 05, 2014
@EricLengyel well XML commenting can do something like that.
Sep 11, 2012
@EricLengyel then just do it BY yourself for every single OS and then share it with us
Sep 11, 2012
@EricLengyel XInput is good for what it's supposed to do.
Sep 10, 2012
@EricLengyel Windows Joystick API is really simple & clean

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