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27 lines
442 B
Plaintext
27 lines
442 B
Plaintext
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#version 430
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# define M_PI 3.14159265358979323846
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layout(points) in;
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layout(line_strip, max_vertices = 7) out;
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layout(std140, binding = 0) uniform buf {
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float radius;
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};
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void main(void)
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{
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for(int i=0;i<7;++i)
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{
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float theta = float(i) / 6.0f * 2.0 * M_PI;
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gl_Position = gl_in[0].gl_Position;
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gl_Position.xy += radius * vec2(cos(theta), sin(theta));
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EmitVertex();
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}
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EndPrimitive();
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}
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