63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// Filename: perlinNoise2.h
|
|
// Created by: drose (05Oct05)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef PERLINNOISE2_H
|
|
#define PERLINNOISE2_H
|
|
|
|
#include "pandabase.h"
|
|
#include "perlinNoise.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : PerlinNoise2
|
|
// Description : This class provides an implementation of Perlin noise
|
|
// for 2 variables. This code is loosely based on the
|
|
// reference implementation at
|
|
// http://mrl.nyu.edu/~perlin/noise/ .
|
|
////////////////////////////////////////////////////////////////////
|
|
class EXPCL_PANDA_MATHUTIL PerlinNoise2 : public PerlinNoise {
|
|
PUBLISHED:
|
|
INLINE PerlinNoise2();
|
|
INLINE PerlinNoise2(double sx, double sy,
|
|
int table_size = 256,
|
|
unsigned long seed = 0);
|
|
INLINE PerlinNoise2(const PerlinNoise2 ©);
|
|
INLINE void operator = (const PerlinNoise2 ©);
|
|
|
|
INLINE void set_scale(double scale);
|
|
INLINE void set_scale(double sx, double sy);
|
|
INLINE void set_scale(const LVecBase2f &scale);
|
|
INLINE void set_scale(const LVecBase2d &scale);
|
|
|
|
INLINE double noise(double x, double y) const;
|
|
INLINE float noise(const LVecBase2f &value) const;
|
|
double noise(const LVecBase2d &value) const;
|
|
|
|
INLINE double operator ()(double x, double y) const;
|
|
INLINE float operator ()(const LVecBase2f &value) const;
|
|
INLINE double operator ()(const LVecBase2d &value) const;
|
|
|
|
private:
|
|
void init_unscaled_xform();
|
|
INLINE static double grad(int hash, double x, double y);
|
|
|
|
private:
|
|
LMatrix3d _unscaled_xform;
|
|
LMatrix3d _input_xform;
|
|
};
|
|
|
|
#include "perlinNoise2.I"
|
|
|
|
#endif
|
|
|