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Alex Szpakowski
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// SimplexNoise1234
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// Copyright � 2003-2011, Stefan Gustavson
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//
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// Contact: stegu@itn.liu.se
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//
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// This library is public domain software, released by the author
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// into the public domain in February 2011. You may do anything
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// you like with it. You may even remove all attributions,
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// but of course I'd appreciate it if you kept my name somewhere.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// Modified by the LOVE Development Team to remove 3D and 4D implementations due
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// to patent issues.
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/** \file
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\brief Declares the SimplexNoise1234 class for producing Perlin simplex noise.
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\author Stefan Gustavson (stegu@itn.liu.se)
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*/
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/*
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* This is a clean, fast, modern and free Perlin Simplex noise class in C++.
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* Being a stand-alone class with no external dependencies, it is
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* highly reusable without source code modifications.
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*
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*
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* Note:
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* Replacing the "float" type with "double" can actually make this run faster
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* on some platforms. A templatized version of SimplexNoise1234 could be useful.
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*/
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class SimplexNoise1234 {
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public:
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SimplexNoise1234() {}
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~SimplexNoise1234() {}
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/** 1D and 2D float Perlin noise
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*/
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static float noise( float x );
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static float noise( float x, float y );
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private:
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static unsigned char perm[];
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static float grad( int hash, float x );
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static float grad( int hash, float x, float y );
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};
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