23 lines
480 B
GLSL
23 lines
480 B
GLSL
#define PI 3.14159
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#define TWO_PI (PI * 2.0)
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#define N 26
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void mainImage(out vec4 fragColor, in vec2 fragCoord)
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{
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vec2 v = (fragCoord.xy - iResolution.xy) / min(iResolution.x, iResolution.y);
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v *= 5.0;
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v -= vec2(200.0);
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float col = 0.10;
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for (int i = 0; i < N; i++) {
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float a = float(i) * (TWO_PI / N) * 61.95;
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col += cos(TWO_PI * (v.y * cos(a) + v.x * sin(a) + sin(iTime * 0.004) * 100.0));
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}
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col /= 3.0;
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fragColor = vec4(col*1.50, -col*1.0,-col*1.0, 1.0);
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}
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