Think of it as seasoning
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Noise itself doesn't do much except make a simple pattern.
But it provides seasoning to help you make things irregular enough
so that you can make them look more interesting.
The fact that noise doesn't repeat makes it useful the way a paint brush is useful when painting. You use a particular paint brush because the bristles have a particular statistical quality - because of the size and spacing and stiffness of the bristles. You don't know, or want to know, about the arrangement of each particular bristle. In effect, oil painters use a controlled random process (centuries before John Cage made such a big deal about it). Noise allowed me to do that with mathematical expressions to make textures. |