16 lines
388 B
Plaintext
16 lines
388 B
Plaintext
struct QuadOutput
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{
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float2 uv : UV;
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float4 position : SV_Position;
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}
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[shader("vertex")]
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QuadOutput quadMain(uint vertexIndex : SV_VertexID)
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{
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QuadOutput result;
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result.uv = float2(vertexIndex & 2, (vertexIndex << 1) & 2);
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float2 ndc = result.uv * 2.0f + -1.0f;
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ndc.y = -ndc.y; // Flip Y for flipped viewport
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result.position = float4(ndc, 0.0f, 1.0f);
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return result;
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} |