Reposted by John ParsaieChips and Cheese @chipsandcheese.com.web.brid.gy · 19/09/2026chipsandcheese.comQualcomm’s Adreno X2 GPUIntegrated GPUs have become a crucial component in recent laptop chips, thanks to a push for better graphics performance in ultraportable devices. 021
Reposted by John ParsaieArseny Kapoulkine @zeux.io · 06/09/2026bcantrill.dtrace.org/2026/09/05/t...bcantrill.dtrace.orgThe revolt of the reader | The Observation Deck 074
John Parsaie @parsaie.bsky.social · 05/09/2026< 1000 lines of code API surface, you have my attention 0101
Reposted by John ParsaieAmélie Heinrich @dispatchgraph.bsky.social · 10/08/2026I am looking for full-time work starting October. I am a graphics programmer with a AAA experience (Ubisoft, Quantic), where I worked with real-time rendering, RT, and console dev kits. DMs open. RTs appreciated! 13316
Reposted by John ParsaieMike Turitzin @miketuritzin.bsky.social · 30/07/20269/10 Reddit users agree - barycentric coordinates are useful. Thanks AI! 5384
Reposted by John ParsaieAlex Mueller @lexdev.net · 20/05/2026Very happy that we were able to finally share a closer look at Smolder in the latest @digitalfoundry.bsky.social video! It is a fully integrated volumetric renderer, and it enables volumetric shadows for every light in the entire game. You'll see a lot of Smolder effects in @007game.ioi.dk 2284
Reposted by John Parsaieceruleite.bsky.social @ceruleite.bsky.social · 15/07/20262026 Advances in Real-Time Rendering in Games course line up is here - check it out! advances.realtimerendering.com 16127
Reposted by John ParsaieAlex Tardif @longbool.bsky.social · 30/05/2026The Cost of AI alextardif.com/AI.htmlalextardif.comAlex Tardif: Graphics Programmer 13363131
John Parsaie @parsaie.bsky.social · 27/05/2026Added basic USD import pipeline (curves, mesh, camera) in order to quickly author different scenarios in Blender. Will add light prim support, lightloop, and BSDFs before finally getting into The Techniques. 050
John Parsaie @parsaie.bsky.social · 24/05/2026Found some time to add viewport-aligned ribbons topology mode and (necessarily) MSAA for the hair rendering testbed. 191
Reposted by John ParsaieKostas Anagnostou @kostasanagnostou.bsky.social · 22/05/2026The Minimal Retroreflective Microfacet Model jcgt.org/published/00... 04811
Reposted by John ParsaieChristian Wolf @chriswolfvision.bsky.social · 05/05/2026Who needs Netflix when all the drama is on Bluesky... 1234
John Parsaie @parsaie.bsky.social · 05/05/2026Posted without comment, an excerpt from midcentury novelist William Gaddis, giving us the stream of consciousness of a man driven mad by the player piano. 2423
John Parsaie @parsaie.bsky.social · 20/04/2026In case you ever wanted to hear me yap about native Windows ARM64 performance benefits, boy do I have a video for you youtu.be/kroO-WjdBhw?...youtu.beNative vs Emulated Performance on Windows on Snapdragon: Kingdom Come: Deliverance IIYouTube video by Qualcomm Developer 180
Reposted by John ParsaieStefan Reinalter @molecularmusing.bsky.social · 17/04/2026It's happening: Live++ on Linux, very very early Alpha. All credit for this goes to @maus-games.at from @mipumi.com who's working on this. 1251
Reposted by John Parsaienicebyte @nicebyte.bsky.social · 12/04/2026INTRODUCTION TO SPHERICAL HARMONICS FOR GRAPHICS PROGRAMMERS finally done. gpfault.net/posts/sph.htmlgpfault.netIntroduction to Spherical Harmonics for Graphics Programmers 1027886
Reposted by John ParsaieMAK @makramd.bsky.social · 10/04/2026Introducing MinDXNN: MLP library for DirectX 12 gpuopen.com/learn/mindxn...gpuopen.comIntroducing MinDXNN: MLP library for DirectX 12 - AMD GPUOpenMinDXNN is a native HLSL and DirectX 12 library for lightning-fast MLP inference leveraging AMD Radeon™ RX 9000 series matrix cores via cooperative vector APIs, delivering optimized kernels, samples, full source and docs to remove compute interop friction. 031
Reposted by John ParsaieMiolith @miolith.bsky.social · 08/04/2026They don't want you to know but this trick makes your app 10x faster 072
John Parsaie @parsaie.bsky.social · 04/04/2026Jolt Physics GPU-accelerated hair strands physics Saturday side-quest. Running on Apple Silicon w/ KosmicKrisp Vulkan drivers 2160
John Parsaie @parsaie.bsky.social · 01/04/2026“Old, traditional compilers force the masses to follow a tight set of rules dreamt up by the bourgeoisie… Warnings and errors are of no use to the proletariat, who just want results. CCC boldly crushes type systems with revolutionary fervor…” 110
John Parsaie @parsaie.bsky.social · 31/03/2026Setting up a little VK testbed to survey the quality/perf tradeoffs of the various presented hair strands renderers in recent years. I'd like to hook it into the experimental Jolt Physics hair support at some point to also examine temporal stability in motion. 070
Reposted by John ParsaieFreya Holmér @freya.bsky.social · 26/03/2026I'm almost there it's so pretty!! 😭 this is the first time I've made extensive use of complex numbers in shader code, which has been fun! it's an analytic 2D lighting system through piecewise conformal maps representing angular light/"sky" exposure, which means you get fully analytic penumbras! 672064169
Reposted by John ParsaieJiayin Cao @jiayincao.bsky.social · 06/03/2026This year at GDC, my peers Evan, Kelsey, and Richard will showcase the latest progress in the UE NvRTX branch, including LSS optimized hair strands path tracing, an area I’ve had the privilege to work on over the past couple of months. schedule.gdconf.com/session/stat... 0264
Reposted by John ParsaieAlan Wolfe @demofox.bsky.social · 12/02/2026Hey All, I made a header only C++ library (MIT) where line of code inits, then you can start writing to pixels on the screen. I call it thirteen.h, inspired by the simplicity of the 13h days. Examples include a mandelbrot viewer and a playable mine sweeper game. github.com/Atrix256/Thi... 817931
Reposted by John ParsaieJorrit Rouwe @jrouwe.bsky.social · 10/01/2026A sneak peak of what I've been working on: A strand based hair system for Jolt Physics (WIP): youtu.be/Rl19G0c003oyoutu.beA strand based hair simulation running on GPUYouTube video by Jorrit Rouwe 49017
John Parsaie @parsaie.bsky.social · 08/01/2026Stepping through vkQueueSubmit until I get lost on a debug build of the RADV drivers. 000
John Parsaie @parsaie.bsky.social · 30/12/2025The other holiday project has been to write a from-scratch Multi-layer Perceptron and train it on the MNIST handwritten digit database. Currently just getting things into memory... 030
John Parsaie @parsaie.bsky.social · 30/12/2025I got tired of writing the same Vulkan + ImGui + GLFW application boilerplate, so I finally snapped and rolled it into a simple library for mine and your fast cross-platform prototyping enjoyment: github.com/parsaiej/Aulegithub.comGitHub - parsaiej/Aule: Simple cross-platform render context for rapid Vulkan prototyping.Simple cross-platform render context for rapid Vulkan prototyping. - GitHub - parsaiej/Aule: Simple cross-platform render context for rapid Vulkan prototyping. 0110
Reposted by John ParsaieSebastian Aaltonen @sebaaltonen.bsky.social · 16/12/2025My "No Graphics API" blog post is live! Please repost :) www.sebastianaaltonen.com/blog/no-grap... I spend 1.5 years doing this. Full rewrite last summer and another partial rewrite last month. As Hemingway said: "First draft of everything is always shit".sebastianaaltonen.comNo Graphics API — Sebastian AaltonenGraphics APIs and shader languages have significantly increased in complexity over the past decade. It’s time to start discussing how to strip down the abstractions to simplify development, improve pe... 19474193
Reposted by John ParsaieArseny Kapoulkine @zeux.io · 30/09/2025New blog post! In "Billions of triangles in minutes" we'll walk through hierarchical cluster level of detail generation of, well, billions of triangles in minutes. Reposts welcome! zeux.io/2025/09/30/b... 116655
Reposted by John Parsaiebaldurk @baldurk.bsky.social · 05/09/2025RenderDoc v1.40 is now available! This version includes support for VK_EXT_descriptor_buffer, and vulkan 1.4, as well as some other bug fixes an quality of life improvements. Full release notes: github.com/baldurk/rend... Binary builds: renderdoc.org/builds 0438
John Parsaie @parsaie.bsky.social · 27/08/2025Finally snapped: made a Vulkan layer that auto-labels objects with a stack trace at creation time. Now the validation layer can just tell me what I forgot to release on vkDestroyDevice :) 2202
Reposted by John Parsaieceruleite.bsky.social @ceruleite.bsky.social · 26/08/2025#SIGGRAPH2025 Advances talks slides sharing: "Strand-based hair and fur rendering in Indiana Jones and the Great Circle" by Sergei Kulikov from Machine games is now online advances.realtimerendering.com/s2025/index.... 03913
Reposted by John ParsaieJeremy Laumon @jeremy.laumon.name · 20/08/2025Downloading pre-compiled shaders on PC???? devblogs.microsoft.com/directx/intr...media.tenor.coma man in a suit and tie with his arms in the air and the words it 's happeningALT: a man in a suit and tie with his arms in the air and the words it 's happening 99719
Reposted by John Parsaieceruleite.bsky.social @ceruleite.bsky.social · 09/08/2025As the date for the 20th anniversary of Advances is coming, I realized some content was missing. Posted 2007 and 2008 courses online - check them out! advances.realtimerendering.com 15825
Reposted by John ParsaieArseny Kapoulkine @zeux.io · 09/06/2025Probably the most important Vulkan update since dynamic rendering is live! docs.vulkan.org/features/lat...docs.vulkan.orgVK_KHR_unified_image_layouts :: Vulkan Documentation Project 1305
Reposted by John ParsaieAdam Sawicki @asawicki.info · 28/05/2025I just published my new article: The Secrets of Floating-Point Numbers asawicki.info/articles/sec...asawicki.infoThe Secrets of Floating-Point Numbers 03913
John Parsaie @parsaie.bsky.social · 02/04/2025Never building debug binaries again :) devblogs.microsoft.com/cppblog/cpp-...devblogs.microsoft.comC++ Dynamic Debugging: Full Debuggability for Optimized Builds - C++ Team BlogOver the past 5 years, we’ve had many incredible opportunities to engage with game developers. From AAA studios to indie developers, the passion for slashing iteration times is significant. Amidst all... 080
John Parsaie @parsaie.bsky.social · 29/03/2025My next hobby path tracer will require an internet connection and draw random samples from www.random.org/decimal-frac... (/s)random.orgRANDOM.ORG - Decimal Fraction GeneratorThis page allows you to generate random decimal fractions using true randomness, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. 030
John Parsaie @parsaie.bsky.social · 29/03/2025"Thus one nit is one lux per steradian is one candela per square meter is on lumen per square meter per steradian. Got it?" - Jim Kajiya (Annual reread of PBRT Radiometry chapter because I keep forgetting) 041
Reposted by John ParsaieYining Karl Li @yiningkarlli.bsky.social · 24/03/2025TIL that because the FFmpeg project has gained so much experience in hand-writing assembly code to provide huge speedups, they now are putting together a series of lessons for learning assembly: Vibe coding is fun and all, but this is probably a better use of time! github.com/FFmpeg/asm-l...github.comGitHub - FFmpeg/asm-lessons: FFMPEG Assembly Language LessonsFFMPEG Assembly Language Lessons. Contribute to FFmpeg/asm-lessons development by creating an account on GitHub. 428784
Reposted by John ParsaieKostas Anagnostou @kostasanagnostou.bsky.social · 10/01/2025This is the amount of shader ISA code the compiler produces for a single atan2(). Avoid using it for time critical code. 4508
John Parsaie @parsaie.bsky.social · 03/01/2025Well, it wound up taking nearly the rest of my holiday, but I finished adding multi-pass support to my image quality reference tool's ShaderToy input mode. 0110
Reposted by John ParsaieJohn Parsaie @parsaie.bsky.social · 28/12/2024Debugging multi-pass support at the moment, exposed an option to write the HLSL to disk with spirv-cross. We normally go straight from SPIR-V to DXIL for the cross compilation but it can be helpful to look at the intermediate HLSL to sort out some issues. 011
