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24 lines
625 B
24 lines
625 B
struct MatrixBatch {
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size: vec4<u32>,
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data: array<vec4<f32>>,
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}
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@group(0) @binding(0)
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var<storage, read> c: MatrixBatch;
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@group(0) @binding(1)
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var<storage, read_write> result: MatrixBatch;
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@compute @workgroup_size(1)
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fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
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result.size = c.size;
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let vc = c.size.x / 4;
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let ro = (global_id.z * c.size.y + global_id.y) * vc;
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var s = vec4(0f);
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for (var x = 0u; x < vc; x++) {
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s += c.data[ro + x] * c.data[ro + x];
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}
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result.data[ro + global_id.x] = c.data[ro + global_id.x] * vec4(inverseSqrt((s.x + s.y + s.z + s.w) / f32(c.size.x) + 1e-5f));
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}
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