67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
// Filename: perlinNoise2.h
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// Created by: drose (05Oct05)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef PERLINNOISE2_H
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#define PERLINNOISE2_H
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#include "pandabase.h"
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#include "perlinNoise.h"
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////////////////////////////////////////////////////////////////////
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// Class : PerlinNoise2
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// Description : This class provides an implementation of Perlin noise
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// for 2 variables. This code is loosely based on the
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// reference implementation at
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// http://mrl.nyu.edu/~perlin/noise/ .
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA PerlinNoise2 : public PerlinNoise {
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PUBLISHED:
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INLINE PerlinNoise2();
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INLINE PerlinNoise2(double sx, double sy,
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int table_size = 256,
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unsigned long seed = 0);
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INLINE PerlinNoise2(const PerlinNoise2 ©);
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INLINE void operator = (const PerlinNoise2 ©);
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INLINE void set_scale(double scale);
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INLINE void set_scale(double sx, double sy);
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INLINE void set_scale(const LVecBase2f &scale);
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void set_scale(const LVecBase2d &scale);
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INLINE double noise(double x, double y) const;
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INLINE float noise(const LVecBase2f &value) const;
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double noise(const LVecBase2d &value) const;
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INLINE double operator ()(double x, double y) const;
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INLINE float operator ()(const LVecBase2f &value) const;
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INLINE double operator ()(const LVecBase2d &value) const;
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private:
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void init_unscaled_xform();
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INLINE static double grad(int hash, double x, double y);
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private:
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LMatrix3d _unscaled_xform;
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LMatrix3d _input_xform;
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};
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#include "perlinNoise2.I"
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#endif
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