Intrinsics

GPULang provides a suite of intrinsics for things like math, texture sampling and more.

Texture sampling

A texture type can be of the sampled type which means it's a combined texture-sampler as provided from the client. There is a separate set of textureSample functions for them, since they don't require a sampler argument.

Name	Effect
textureSample(*texture1D, *sampler, f32)	Samples a texture a 1D texture
textureSample(*texture1DArray, *sampler, f32x2)	Samples a texture a 1D array texture
textureSample(*texture2D, *sampler, f32x2)	Samples a texture a 2D texture
textureSample(*texture2DMS, *sampler, f32x2)	Samples a texture a 2D multisampled texture
textureSample(*texture2DArray, *sampler, f32x3)	Samples a texture a 2D array texture
textureSample(*texture3D, *sampler, f32x3)	Samples a texture a 3D texture
textureSample(*textureCube, *sampler, f32x3)	Samples a texture a Cube texture
textureSample(*textureCubeArray, *sampler, f32x4)	Samples a texture a Cube array texture
textureSample(*sampled texture1D, f32)	Samples a sampled texture a 1D texture
textureSample(*sampled texture1DArray, f32x2)	Samples a sampled texture a 1D array texture
textureSample(*sampled texture2D, f32x2)	Samples a sampled texture a 2D texture
textureSample(*sampled texture2DMS, f32x2)	Samples a sampled texture a 2D multisampled texture
textureSample(*sampled texture2DArray, f32x3)	Samples a sampled texture a 2D array texture
textureSample(*sampled texture3D, f32x3)	Samples a sampled texture a 3D texture
textureSample(*sampled textureCube, f32x3)	Samples a sampled texture a Cube texture
textureSample(*sampled textureCubeArray, f32x4)	Samples a sampled texture a Cube array texture

Atomics

Atomic values are always managed using a built-in enum called MemorySemantics to declare the ordering of atomic operations.

Name	Effect
atomicLoad(scalar, literal MemorySemantics) scalar	Loads an atomic value
atomicStore(scalar, scalar, literal MemorySemantics) scalar	Stores an atomic value