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third_party
skia
src
shaders
SkPerlinNoiseShaderType.h
Go to the documentation of this file.
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/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkPerlinNoiseShaderType_DEFINED
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#define SkPerlinNoiseShaderType_DEFINED
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/**
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* About the noise types : the difference between the first two is just minor tweaks to the
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* algorithm; they're not two entirely different noises. The output looks different, but once the
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* noise is generated in the [1, -1] range, the output is brought back in the [0, 1] range by doing:
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* kFractalNoise : noise * 0.5 + 0.5
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* kTurbulence : abs(noise)
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* Very little differs between the two types, although you can tell the difference visually.
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*/
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enum class
SkPerlinNoiseShaderType
{ kFractalNoise, kTurbulence, kLast = kTurbulence };
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#endif
SkPerlinNoiseShaderType
SkPerlinNoiseShaderType
Definition:
SkPerlinNoiseShaderType.h:18
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