Florin Malita
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d863ae52d4
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[skottie] Fractal noise 'fractal type' support
In addition to various filter modes, ADBE Fractal Noise also supports
a "fractal type" option which controls a post-filter function.
This CL implements support for 4 types:
- basic: f(N) = N
- turbulent basic: f(N) = abs(N - 0.5)*2
- turbulent smooth: f(N) = (abs(N - 0.5)*2)^2
- turbulent sharp: f(N) = sqrt(abs(N - 0.5)*2)
Change-Id: I4067a414272cbe1c20e1e46d8a46e3bc51d93af0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/377841
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Florin Malita <fmalita@google.com>
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2021-03-02 15:50:32 +00:00 |
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