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Thread: mvNoise, Perlin noise - problem

  1. #21
    Maybe a bit late to ask, but, how Perlin Noise is different than a Plasma Cloud? Is there some advantage to use Perlin Noise?

  2. #22
    Quote Originally Posted by pitfiend View Post
    Maybe a bit late to ask, but, how Perlin Noise is different than a Plasma Cloud? Is there some advantage to use Perlin Noise?
    The main diferences between Perlin Noise and Pasma Cloud are:
    1. In Plasma Cloud you put subsequent pixels between the other two pixels while in Perlin Noise you actually place subsequent pixels moved a bit based on pseudorandom gradiant vector.
    2. In Perlin Noise you usually pregenerate premutation table and use thet for making random textures for each octave and thus removes the need to be constantly generating random numbers. This in the end gives you better perfornamce since random number generation is quite slow.
    3. In perlin noise you can define custom size and presistance for each octave with which you get fine controll on final texture.

  3. #23
    Quote Originally Posted by SilverWarior View Post
    The main diferences between Perlin Noise and Pasma Cloud are:
    1. In Plasma Cloud you put subsequent pixels between the other two pixels while in Perlin Noise you actually place subsequent pixels moved a bit based on pseudorandom gradiant vector.
    2. In Perlin Noise you usually pregenerate premutation table and use thet for making random textures for each octave and thus removes the need to be constantly generating random numbers. This in the end gives you better perfornamce since random number generation is quite slow.
    3. In perlin noise you can define custom size and presistance for each octave with which you get fine controll on final texture.
    So, if I feed a plasma generator with a precalculated table of permutation and allow the custom size and persitence, I could achieve similar results? Also want to be clear that you can generate plasma in many ways.
    Last edited by pitfiend; 12-07-2013 at 06:56 AM.

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