@exppad

Research Scientist at @AdobeResearch. PhD in Computer Graphics. Dev of #OpenMfx and Learn #WebGPU C++. Opinions are my own. ⏩ https://xitter.cf/t.co/lDVZsdOOuw

 Paris
exppad.com/
Joined November 2015
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Is it because researchers only work with recent high end #GPU that everybody has to renew their hardware so fast or is the other way around? Causality is hard to prove, but the correlation is a fact! And we have plenty more figures to show at our #SIGGRAPH2025 talk next summer!
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We're very much interested in your opinion and interpretation of these results! More info about the upcoming talk: 🔹SIGGRAPH program: s2025.conference-schedule.or… 🔹Webpage: eliemichel.github.io/sustain… with @emxtyu Octave Crespel @Axel_Paris and @FelixHahnlein
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I also gather some related toughts in this appendix of the #LearnWebGPU programming guide: "Keep in mind lower-end devices" eliemichel.github.io/LearnWe…

Learn WebGPU for C++

This documentation walks you through the use of the WebGPU graphics API to create native 3D applications in C++ from scratch, for Windows, Linux and macOS.

eliemichel.github.io
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'tint' is the shader compiler developed by Chrome to implement #WebGPU. It has a nice command line interface, but so far there is no official build out... Wait no more! I share here precompiled binaries of tint CLI: github.com/eliemichel/dawn-p…
Left: WGSL and SPIR-V are possible inputs of tint. Right: MSL, GLSL? HLSL, SPIR-V and WGSL are possible outputs of tint.

ALT Left: WGSL and SPIR-V are possible inputs of tint. Right: MSL, GLSL? HLSL, SPIR-V and WGSL are possible outputs of tint.

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Note that 'naga' is the equivalent tool developed by Firefox. It can easily be installed using cargo (the rust build manager): github.com/gfx-rs/wgpu/tree/…
Left: WGSL, GLSL and SPIR-V are possible inputs of naga. Right: MSL, GLSL? HLSL, SPIR-V and WGSL are possible outputs of naga.

ALT Left: WGSL, GLSL and SPIR-V are possible inputs of naga. Right: MSL, GLSL? HLSL, SPIR-V and WGSL are possible outputs of naga.

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I've just realized something. It makes much more sense to have the "hello triangle" pointing upside down when learning #WebGPU! 👉 The ongoing "Next" rewrite of my guide reached the Hello Triangle chapter 🥳 eliemichel.github.io/LearnWe…
Screenshot of the Hello Triangle chapter

ALT Screenshot of the Hello Triangle chapter

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Important notes: 🔹This rewrite is *WIP*, refer to the main section (w/o "next" in the URL) for further chapters. 🔹This only works with Dawn for now because it is closer to what the v1.0 of WebGPU will be. 🔹The accompagnying code "stepXXX-next" is not up to date yet.
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🏅Honored to have been awarded at #Eurographics25 for our paper on #LipschitzPruning to speed-up SDF rendering! 👉 The paper's page: wbrbr.org/publications/Lipsc… Congrats to @wilbarbier, M. Sanchez, @Axel_Paris, T. Lambert, @boubek , M. Paulin and T. Thonat!
Wilhem receiving the award on stage

ALT Wilhem receiving the award on stage

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On my way to #Eurographics, where we'll present our recent work on fast #SDF rendering! More than 500x #speedup on some complex scenes, addressing a key scalability issue of #ImplicitSurfaces modeling! Webpage: wbrbr.org/publications/Lipsc… cc @wilbarbier @Axel_Paris @boubek
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New update post about the 🚧 Ongoing work! 🚧 in my LearnWebGPU C++ guide! On patreon: patreon.com/posts/ongoing-wo… On Discord: discord.gg/2Tar4Kt564 Outline: 🔹 The LearnWebGPU guide 🔹 WebGPU-distribution 🔹 RenderDoc 🔹 WebGPU-C++ 🔹 GLFW and SDL 🔹 Slang x WebGPU 🔹 ...
Screenshot of https://eliemichel.github.io/LearnWebGPU

ALT Screenshot of https://eliemichel.github.io/LearnWebGPU

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PS: I'll be in #Eurographics next week, feel free to get in touch!
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Starting to track down the usage of #WebGPU resources during a frame in my custom #RenderDoc driver! (Don't mind the usage field, it's a placeholder value for now)
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Starting to nest events in the #WebGPU driver for #RenderDoc, how do you think I should handle these "WriteBuffer" that occur while encoding a "RenderPass"? Because chronologically they are submitted before the render pass even though the API call occurs after.
WebGPU events in RenderDoc, with nesting of what happens between BeginRenderPass and RenderPassEnd

ALT WebGPU events in RenderDoc, with nesting of what happens between BeginRenderPass and RenderPassEnd

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Who would be interested in a version of #RenderDoc that captures and replays calls to the #WebGPU API (rather than calls to the underlying DirectX/Vulkan/Metal API)? This is an early test that only lists the API calls, but already promissing! Will share when usable.
A screenshot of RenderDoc where one can see calls to the WebGPU API

ALT A screenshot of RenderDoc where one can see calls to the WebGPU API

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Close-up on the captured WebGPU API calls
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🏆 So honored that our paper received the Honorable Mention #Award at #SIGGRAPHAsia! I really like this paper BTW, it is about procedural #SignedDistanceFields, a simple idea to #differentiate them and thus provide #DirectManipulation ✨ More in the🧵⤵️ 1/8
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The results: Our approach provides more expressive manipulation capabilities than solutions that do not augment the implicit function to help tracking down a point's identity! More info and results on the web page! 👉 eliemichel.github.io/SdfMani… 7/8
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🥳 A huge congrats to all my co-authors! @marziarice_, @Axel_Paris, @vdeschaintre, Mathieu Gaillard (mgaillard.fr/), @Xelatihy 8/8
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