Module slang_programs 

What each backend compiles from the single-source .slang shaders.

Declarations only: the file, the entry point, the target profile, and the variant defines, as plain &'static data. They live here rather than in the device crate because both halves of the toolchain iterate them – the renderer to compile a program at init, and the device build script to compile the same programs ahead of time – and a build script cannot read its own crate’s data. One table is what keeps the two from disagreeing about what a program’s source is, which the content-addressed shader cache would otherwise paper over by serving one path’s bytes to the other.

Everything that needs a compiler, a cache, or a filesystem stays in the device crate and reaches these through a trait.

Modules

dx

What the DirectX backend compiles to DXIL.

raymarch

What every backend compiles for the raymarched SDF volume pass. What the raymarched SDF volume pass compiles, on every backend.

surface

What every backend compiles for a world Shader. What a world Shader compiles to, on every backend.

vk

What the Vulkan backend compiles to SPIR-V.