46 lines
1.0 KiB
HLSL
46 lines
1.0 KiB
HLSL
#include "ShaderConstants.fxh"
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struct GeometryShaderInput
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{
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float4 pos : SV_POSITION;
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#ifdef INSTANCEDSTEREO
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uint instanceID : SV_InstanceID;
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#endif
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};
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// Per-pixel color data passed through the pixel shader.
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struct GeometryShaderOutput
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{
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float4 pos : SV_POSITION;
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#ifdef INSTANCEDSTEREO
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uint renTarget_id : SV_RenderTargetArrayIndex;
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#endif
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};
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// passes through the triangles, except changint the viewport id to match the instance
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#ifdef LINE_STRIP
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[maxvertexcount(2)]
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void main(line GeometryShaderInput input[2], inout LineStream<GeometryShaderOutput> outStream)
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#else
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[maxvertexcount(3)]
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void main(triangle GeometryShaderInput input[3], inout TriangleStream<GeometryShaderOutput> outStream)
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#endif
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{
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GeometryShaderOutput output = (GeometryShaderOutput)0;
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#ifdef INSTANCEDSTEREO
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int i = input[0].instanceID;
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#endif
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#ifdef LINE_STRIP
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for (int j = 0; j < 2; j++)
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#else
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for (int j = 0; j < 3; j++)
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#endif
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{
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output.pos = input[j].pos;
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#ifdef INSTANCEDSTEREO
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output.renTarget_id = i;
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#endif
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outStream.Append(output);
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}
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} |