What is Perlin noise?

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I’ve just heard about this stuff, and somehow it is used both for generating randomised numbers and also in 3d graphics for movies and video games. As well as various other things.

I’m a bit mind blown and confused

In: Technology

2 Answers

Anonymous 0 Comments

Coherent noise generates smoothly varying randomness in n dimensions. Multiple copies of it at different frequencies can be combined in different ways to produce a wide variety of effects, particularly for terrain or texture generation.

Actual “Perlin” noise is an older formula for coherent noise, which produces a lot of 45 and 90 degree bias. I recommend using a “Simplex” type noise instead. OpenSimplex and OpenSimplex2(S) are some algorithms I’ve put out there so that people can avoid IP claims while using them.

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