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a2e5284f82
* [wgsl-in] typedef Span * [wgsl-in] trailing comma for case list * [wgsl-in] trailing comma for constructors * Review fixes
40 lines
1.0 KiB
WebGPU Shading Language
40 lines
1.0 KiB
WebGPU Shading Language
struct VertexOutput {
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[[builtin(position)]] position: vec4<f32>;
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[[location(0)]] uv: vec3<f32>;
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};
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[[block]]
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struct Data {
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proj_inv: mat4x4<f32>;
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view: mat4x4<f32>;
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};
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[[group(0), binding(0)]]
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var r_data: Data;
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[[stage(vertex)]]
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fn vs_main([[builtin(vertex_index)]] vertex_index: u32) -> VertexOutput {
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// hacky way to draw a large triangle
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var tmp1: i32 = i32(vertex_index) / 2;
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var tmp2: i32 = i32(vertex_index) & 1;
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let pos = vec4<f32>(
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f32(tmp1) * 4.0 - 1.0,
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f32(tmp2) * 4.0 - 1.0,
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0.0,
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1.0,
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);
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let inv_model_view = transpose(mat3x3<f32>(r_data.view.x.xyz, r_data.view.y.xyz, r_data.view.z.xyz));
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let unprojected = r_data.proj_inv * pos;
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return VertexOutput(pos, inv_model_view * unprojected.xyz);
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}
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[[group(0), binding(1)]]
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var r_texture: texture_cube<f32>;
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[[group(0), binding(2)]]
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var r_sampler: sampler;
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[[stage(fragment)]]
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fn fs_main(in: VertexOutput) -> [[location(0)]] vec4<f32> {
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return textureSample(r_texture, r_sampler, in.uv);
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}
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