62 lines
1.6 KiB
WebGPU Shading Language
Executable File
62 lines
1.6 KiB
WebGPU Shading Language
Executable File
enable draw_index;
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struct VertexInput {
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@location(0) position: vec2<f32>,
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@builtin(instance_index) draw_id: u32,
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};
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struct VertexOutput {
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@location(0) albedo: vec4<f32>,
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@builtin(position) position: vec4<f32>,
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};
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struct Face {
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transform: u32,
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colour: u32,
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};
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@group(0) @binding(0)
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var<storage, read> faces: array<Face>;
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@vertex
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fn vs_main(
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input: VertexInput
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) -> VertexOutput {
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let face = faces[input.draw_id];
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let transform = face.transform;
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let direction = transform & 0x07;
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let x = f32((transform & 0x00000F8) >> 3);
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let y = f32((transform & 0x0001F00) >> 8);
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let z = f32((transform & 0x003E000) >> 13);
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let w = f32((transform & 0x07C0000) >> 18);
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let h = f32((transform & 0xF800000) >> 23);
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var result: VertexOutput;
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result.position = vec4(input.position.x + x, input.position.y + y, z, 1.0);
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result.position.x += w * f32(input.position.x != 0);
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result.position.y += h * f32(input.position.y != 0);
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result.position = vec4(result.position.xy * 0.1, result.position.zw);
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result.albedo = vec4(
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f32(face.colour & 0x000000FF) / 255,
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f32((face.colour & 0x0000FF00) >> 8) / 255,
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f32((face.colour & 0x00FF0000) >> 16) / 255,
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f32((face.colour & 0xFF000000) >> 24) / 255,
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);
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return result;
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}
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struct FragmentOutput {
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@location(0) albedo: vec4<f32>,
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@location(1) chunk_id: u32,
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}
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@fragment
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fn fs_main(vertex: VertexOutput) -> FragmentOutput {
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var output: FragmentOutput;
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output.albedo = vertex.albedo;
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output.chunk_id = 0;
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return output;
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}
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