mirror of
https://github.com/seigler/generative
synced 2025-07-27 07:06:08 +00:00
21 lines
429 B
GLSL
21 lines
429 B
GLSL
precision mediump float;
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uniform vec2 u_resolution;
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uniform float u_alpha;
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highp float random(vec2 co) {
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highp float a = 12.9898;
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highp float b = 78.233;
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highp float c = 43758.5453;
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highp float dt= dot(co.xy, vec2(a, b));
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highp float sn= mod(dt, 3.14);
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return fract(sin(sn) * c);
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}
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void main() {
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vec2 st = gl_FragCoord.xy/u_resolution.xy;
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float rnd = random(st);
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gl_FragColor = vec4(vec3(rnd), u_alpha);
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}
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