Created
March 9, 2019 03:38
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| vec2 rand2n() { | |
| seed+=vec2(-1,1); | |
| // implementation based on: lumina.sourceforge.net/Tutorials/Noise.html | |
| return vec2(fract(sin(dot(seed.xy ,vec2(12.9898,78.233))) * 43758.5453), | |
| fract(cos(dot(seed.xy ,vec2(4.898,7.23))) * 23421.631)); | |
| }; |
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