Zig can also compile to SPIR-V. Not sure about the others.
(And I haven't tried the SPIR-V compilation yet, just came across it yesterday.)
(And I haven't tried the SPIR-V compilation yet, just came across it yesterday.)
There's also https://github.com/treeform/shady to compile Nim to GLSL.
Also, more generally, there's an LLVM-IR->SPIR-V compiler that you can use for any language that has an LLVM back end (Nim has nlvm, for example): https://github.com/KhronosGroup/SPIRV-LLVM-Translator
That's not to say this project isn't cool, though. As usual with Rust projects, it's a bit breathy with hype (eg "sophisticated conditional compilation patterns" for cfg(feature)), but it seems well developed, focused, and most importantly, well documented.
It also shows some positive signs of being dog-fooded, and the author(s) clearly intend to use it.
Unifying GPU back ends is a noble goal, and I wish the author(s) luck.
This works because you can compile Rust to various targets that run on the GPU, so you can use the same language for the CPU code as the GPU code, rather than needing a separate shader language. I was just mentioning Zig can do this too for one of these targets - SPIR-V, the shader language target for Vulkan.
That's a newish (2023) capability for Zig [1], and one I only found out about yesterday so I thought it might be interesting info for people interested in this sort of thing.
For some reason it's getting downvoted by some people, though. Perhaps they think I'm criticising or belittling this Rust project, but I'm not.
[1] https://github.com/ziglang/zig/issues/2683#issuecomment-1501...