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May 15, 2024 13:23
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One liner pseudo random generator with HLSL
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| float nrand(float2 uv) | |
| { | |
| return frac(sin(dot(uv, float2(12.9898, 78.233))) * 43758.5453); | |
| } |
@mikec316 well for how simple this code is (now that I have the years of experience) I am surprised GPT did not just write it out instead of finding a link? Did you ask for it to find it online specifically?
ChatGPT wrote it out exactly as it appears above, no link. I just managed to find the link while verifying :D
@mikec316 ah ok yeah that is because its a well known function from long before @keijiro wrote it. Its a simple concept really, but for a more effective aproach make sure that if you are using the noise within a texture or some finite space that you divide the uv by a float2(width, height). Or multiply it, i forget. Its to make SURE there is no repeating pattern
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@mikec316 well for how simple this code is (now that I have the years of experience) I am surprised GPT did not just write it out instead of finding a link? Did you ask for it to find it online specifically?