/*****************************************************************

  Prototypes for the fractional Brownian motion algorithm. These

  functions were originally the work of F. Kenton Musgrave.  For

  documentation of the different functions please refer to the book:

  "Texturing and modeling: a procedural approach"

  by David S. Ebert et. al.

******************************************************************/

#ifndef _fbm_h

#define _fbm_h

#include  <math.h>

#ifdef __cplusplus

extern "C" {

#endif

//#define TRUE    1

//#define FALSE   0

typedef struct {

    double x;

    double y;

    double z;

} Vector;

float noise3(float vec[]);

double fBm( Vector point, double H, double lacunarity, double octaves, 

	    int init );

#endif

#ifdef __cplusplus

}

#endif