28 lines
817 B
WebGPU Shading Language
28 lines
817 B
WebGPU Shading Language
struct VertexUniform {
|
|
matrix: mat4x4<f32>,
|
|
}
|
|
@binding(0) @group(0) var<uniform> ubo: VertexUniform;
|
|
|
|
struct VertexOut {
|
|
@builtin(position) position_clip: vec4<f32>,
|
|
@location(0) frag_uv: vec2<f32>,
|
|
@interpolate(linear) @location(1) frag_bary: vec3<f32>,
|
|
@interpolate(flat) @location(2) triangle_index: u32,
|
|
}
|
|
|
|
@stage(vertex) fn main(
|
|
@builtin(vertex_index) vertex_index: u32,
|
|
@location(0) position: vec4<f32>,
|
|
@location(1) uv: vec2<f32>,
|
|
) -> VertexOut {
|
|
var output : VertexOut;
|
|
output.position_clip = ubo.matrix * position;
|
|
output.frag_uv = uv;
|
|
output.frag_bary = vec3<f32>(
|
|
f32(((vertex_index+2u) % 3u * 2u) % 3u),
|
|
f32(((vertex_index+2u) % 3u * 2u) & 2u) * 2.0,
|
|
0.0,
|
|
);
|
|
output.triangle_index = vertex_index / 3u;
|
|
return output;
|
|
}
|