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22 lines
411 B
HLSL
22 lines
411 B
HLSL
struct PS_INPUT
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{
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float4 pos : SV_POSITION;
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float2 tex : TEXCOORD;
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};
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PS_INPUT main_vs(uint vI : SV_VERTEXID)
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{
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float idHigh = float(vI >> 1);
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float idLow = float(vI & uint(1));
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float x = idHigh * 4.0 - 1.0;
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float y = idLow * 4.0 - 1.0;
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float u = idHigh * 2.0;
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float v = 1.0 - idLow * 2.0;
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PS_INPUT vert_out;
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vert_out.pos = float4(x, y, 0.0, 1.0);
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vert_out.tex = float2(u, v);
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return vert_out;
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} |