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/*****************************************************************
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;
double fBm( Vector point, double H, double lacunarity, double octaves,
int init );
#endif
#ifdef __cplusplus
}
#endif
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