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/* Created by soma_arc, Kazushi Ahara - 2015 This work is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. */ // from Syntopia http://blog.hvidtfeldts.net/index.php/2015/01/path-tracing-3d-fractals/ vec2 rand2n(vec2 co, float sampleIndex) { vec2 seed = co * (sampleIndex + 1.0); seed+=vec2(-1,1); // implementation based on:…