Title: Noise Post by: Kalter Rauch on August 15, 2017, 06:56:15 AM Recently I've been ransacking through ChaosPro for any noise based formulas.
So far there are 3 identifiable types... 1) a "Perlin Noise" formula yielding shapeless/boundless dense fog shapes 2 a "Perlin-based Coloring" formula 3) a "Perlin FBM Transformation" in which noise is expressed in terms of vectors in 3D space. The 1st can take the place of, for instance, a Mandelbulb, etc. to bring out pareidoliac shapes to which the other noise types can be applied, possibly resulting in novel "stochastic resonance" effects. Title: Re: Noise Post by: Kalter Rauch on August 16, 2017, 02:04:39 AM This was done with all types of noise listed above...
(http://i.imgur.com/JAYkxnG.jpg) Title: Re: Noise Post by: Kalter Rauch on August 16, 2017, 03:24:10 AM (http://i.imgur.com/4DbHaEp.jpg)
Title: Re: Noise Post by: Kalter Rauch on August 16, 2017, 03:32:02 AM I also used GIMP with above...relief light, HSV noise, slight bumpmap, Tikhonov sharpening filters.
Title: Re: Noise Post by: Alef on August 22, 2017, 04:10:01 PM I some time agou did 2D formula of z=z^random +c Where random was in certain small area not all of random values.
Then it starts to act strange with orbits allways escapeing but it did generated fractal. Well I gues it is impossible in 3D. But maybe random power mandelbulb??? http://www.fractalforums.com/mandelbrot-and-julia-set/iterating-random-powers/ (http://www.fractalforums.com/mandelbrot-and-julia-set/iterating-random-powers/) Maybe this was in Chaos pro too. Title: Re: Noise Post by: Kalter Rauch on August 24, 2017, 12:00:35 AM Alef......I'm currently hyping the use of the Perlin FBM Displacement transformation because it expresses noise in terms of direction vectors which distorts 3D shapes. FBM means Fractal Brownian Motion and so suggests what it does. Very small values can be used to generate surface textures. Large values treat a shape like a piece of clay. |