mirror of
https://github.com/gfx-rs/wgpu.git
synced 2024-11-23 15:23:33 +00:00
46 lines
1.4 KiB
WebGPU Shading Language
46 lines
1.4 KiB
WebGPU Shading Language
// Testing various parts of the pipeline interface: locations, built-ins, and entry points
|
|
|
|
struct VertexOutput {
|
|
[[builtin(position)]] position: vec4<f32>;
|
|
[[location(1)]] varying: f32;
|
|
};
|
|
|
|
[[stage(vertex)]]
|
|
fn vertex(
|
|
[[builtin(vertex_index)]] vertex_index: u32,
|
|
[[builtin(instance_index)]] instance_index: u32,
|
|
[[location(10)]] color: u32,
|
|
) -> VertexOutput {
|
|
let tmp = vertex_index + instance_index + color;
|
|
return VertexOutput(vec4<f32>(1.0), f32(tmp));
|
|
}
|
|
|
|
struct FragmentOutput {
|
|
[[builtin(frag_depth)]] depth: f32;
|
|
[[builtin(sample_mask)]] sample_mask: u32;
|
|
[[location(0)]] color: f32;
|
|
};
|
|
|
|
[[stage(fragment)]]
|
|
fn fragment(
|
|
in: VertexOutput,
|
|
[[builtin(front_facing)]] front_facing: bool,
|
|
[[builtin(sample_index)]] sample_index: u32,
|
|
[[builtin(sample_mask)]] sample_mask: u32,
|
|
) -> FragmentOutput {
|
|
let mask = sample_mask & (1u << sample_index);
|
|
let color = select(0.0, 1.0, front_facing);
|
|
return FragmentOutput(in.varying, mask, color);
|
|
}
|
|
|
|
[[stage(compute), workgroup_size(1)]]
|
|
fn compute(
|
|
[[builtin(global_invocation_id)]] global_id: vec3<u32>,
|
|
[[builtin(local_invocation_id)]] local_id: vec3<u32>,
|
|
[[builtin(local_invocation_index)]] local_index: u32,
|
|
[[builtin(workgroup_id)]] wg_id: vec3<u32>,
|
|
//TODO: https://github.com/gpuweb/gpuweb/issues/1590
|
|
//[[builtin(workgroup_size)]] wg_size: vec3<u32>,
|
|
) {
|
|
}
|