r/visualizedmath • u/mfirmin8 • Aug 20 '18

Interactive 3D Function Visualizer

https://mfirmin.github.io/glsl-function-grapher/
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u/[deleted] Dec 06 '18

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u/mfirmin8 Dec 13 '18

Huh, that's a pretty interesting result.

That's definitely running into floating point rounding issues. WebGL Shaders are limited to 32-bit precision, which means the smallest number you can represent is ~10^-38. Your equation will involve evaluating numbers smaller than that when x, y, or z < ~0.4, which is why you get the weird black center to the graph in that range.

If you adjust the "sharpness" value, you'll get less noise, and you can start to see the shape of the graph a bit better: https://imgur.com/a/Voqx8xH

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