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cgcostume/GLSL pseudo-rand

Created April 29, 2019 08:42
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from "The Book of Shaders" by Patricio Gonzalez Vivo & Jen Lowe (https://thebookofshaders.com/10/)
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GLSL pseudo-rand
float r = fract(sin(dot(uv, vec2(12.9898,78.233))) * 43758.5453123);
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