50 lines
1 KiB
Text
50 lines
1 KiB
Text
/* Copyright (c) 2023, Sascha Willems
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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struct UBO
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{
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float4x4 projection;
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float4x4 model;
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float4x4 view;
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};
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cbuffer ubo : register(b0) { UBO ubo; }
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struct VertexOutput
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{
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float4 position: SV_Position;
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float4 color: COLOR0;
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};
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static const float4 positions[3] = {
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float4( 0.0, -1.0, 0.0, 1.0),
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float4(-1.0, 1.0, 0.0, 1.0),
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float4( 1.0, 1.0, 0.0, 1.0)
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};
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static const float4 colors[3] = {
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float4(0.0, 1.0, 0.0, 1.0),
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float4(0.0, 0.0, 1.0, 1.0),
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float4(1.0, 0.0, 0.0, 1.0)
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};
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[outputtopology("triangle")]
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[numthreads(1, 1, 1)]
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void main(out indices uint3 triangles[1], out vertices VertexOutput vertices[3], uint3 DispatchThreadID : SV_DispatchThreadID)
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{
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float4x4 mvp = mul(ubo.projection, mul(ubo.view, ubo.model));
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float4 offset = float4(0.0, 0.0, (float)DispatchThreadID, 0.0);
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SetMeshOutputCounts(3, 1);
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for (uint i = 0; i < 3; i++) {
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vertices[i].position = mul(mvp, positions[i] + offset);
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vertices[i].color = colors[i];
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}
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SetMeshOutputCounts(3, 1);
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triangles[0] = uint3(0, 1, 2);
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}
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