Orochi VS naga

While you're waiting for the HIP SDK to release, check out Orochi as an alternative https://github.com/GPUOpen-LibrariesAndSDKs/Orochi

This isn't a full-fledged SDK but if you develop using the driver/runtime API and nvrtc on Linux, you could certainly use this library to make it run on Windows https://github.com/GPUOpen-LibrariesAndSDKs/Orochi Bonus - it also lets you compile a single binary that runs on both CUDA and HIP!

You can't run CUDA binaries directly. But you can use a wrapper library like Orochi to run both CUDA and HIP using a single binary that dynamically links with CUDA/HIP libraries at runtime https://github.com/GPUOpen-LibrariesAndSDKs/Orochi

I stumbled across orochi from AMD while looking for their FSR2.0 implementation, which basically boils down to being a wrapper over Cuda and HIP. I don't know if it is still maintained or functional, but heres the link if anyone is interested: https://github.com/GPUOpen-LibrariesAndSDKs/Orochi

That wouldn't have been all that different from WGSL though, the most important thing is that whatever WebGPU uses for its shaders can be translated to and from SPRIV (and WGSL does that too (e.g. via https://dawn.googlesource.com/tint and https://github.com/gfx-rs/naga).

Hey all, wanted to put this link in here, where I'm proposing changing the API for errors in naga, so Naga can take ownership of error presentation and actually Make Shader Compilation Messages Comfy™: https://github.com/gfx-rs/naga/issues/2317

EDIT: There is also naga but it does not take HLSL as input: https://github.com/gfx-rs/naga but you can use DirectXShaderCompiler to compile to SpirV, then use naga to compile to Metal.

And it seems that naga https://github.com/gfx-rs/naga Already has a working front/backend for wgsl.

This is basically Ray Tracing support in Blade. So far, only ray queries are supported. Unlike prior work on ray tracing in Rust, this is original due to all shader code being WGSL, see the Naga PR.

There's a compiler that can translate from WGSL to SPIR-V called naga. Having such a compiler is essential, since WebGPU is planned to use WGSL and browsers are expected to implement rendering via Vulkan (and probably Metal and DX12).

Not sure about on the CPU, but naga is a shading language transpiler you can write custom front/backends for.

The spec docs are actually pretty useful https://www.w3.org/TR/WGSL/ besides that I was using naga's tests for reference https://github.com/gfx-rs/naga/tree/master/tests

For cross-platform support look at WebGPU and Vulkan (e.g,: [0] [1]. Essentially, you would need to write the func in WGSL or GLSL, HLSL or MSL. Each of these can be cross-compiled to SPIR-V (what Vulkan needs) with cross-compilers such as spirv-cross and naga.