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ddgnoise.h

This is the verbatim text of the ddgnoise.h include file.

/*
    Copyright (C) 1997, 1998, 1999, 2000 by Alex Pfaffe
        (Digital Dawn Graphics Inc)
  
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
  
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
  
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ddgNoise_Class_
#define _ddgNoise_Class_

#include "util/ddg.h"

class WEXP ddgNoise
{
    static double bias(double a, double b);
    static double gain(double a, double b);
    static void normalize2(double *a );
    static void normalize3(double *a );
    static void init(void );
  public:
    static double noise1(double point);
    static double noise2(double *point);
    static double noise3(double *point);
    static double noise(double *point, int len);
    static double turbulence(double *point, double freq);
    static double onoise(double *point, double freq);
    static double cloud( double *point, double freq, int cc, double cs );
    static double fBm( double* point, double H, double lacunarity, double octaves);
        static double multifractal( double* point, double H, double lacunarity, double octaves, double offset );
        static double hybridmultifractal( double* point, double H, double lacunarity, double octaves, double offset );
        static double four_noise(double* point, double time);
};

#endif

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