Tour of WGSL

Vectors

WGSL supports 2-element, 3-element and 4-element vectors of scalar types.

Vectors are declared with the form vecN<T> , where N is the number of elements in the vector, and T is the element type.

Example


`vec2<f32>`	A two-element vector of `f32`.
`vec3<u32>`	A three-element vector of `u32`.
`vec4<bool>`	A four-element vector of `bool`.

WGSL also predeclares the aliases vecNS , where S is one of i, u or f:

vecNi is an alias to vecN<i32>
vecNu is an alias to vecN<u32>
vecNf is an alias to vecN<f32>

Example


`vec2f`	is an alias to `vec2<f32>`.
`vec3u`	is an alias to `vec3<u32>`.
`vec4i`	is an alias to `vec4<i32>`.

fn a(v : vec2<f32>) {}

fn b(v : vec2f) {
    a(v); // vec2<f32> is equivalent to vec2f
}