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27 lines
568 B
HLSL
27 lines
568 B
HLSL
struct VertexOutput
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{
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float4 position : SV_Position;
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};
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struct PixelInput
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{
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float4 position : SV_POSITION;
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};
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cbuffer buf : register(b0)
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{
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float radius : packoffset(c0);
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};
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[maxvertexcount(7)]
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void main(point VertexOutput input[1], inout LineStream<PixelInput> OutputStream)
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{
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PixelInput output;
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for (int i = 0; i < 7; ++i) {
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float theta = float(i) / 6.0f * 2.0 * 3.14159265;
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output.position = input[0].position;
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output.position.xy += radius * float2(cos(theta), sin(theta));
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OutputStream.Append(output);
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}
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}
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