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40 lines
748 B
40 lines
748 B
13 years ago
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/*****************************************************************
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Prototypes for the fractional Brownian motion algorithm. These
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functions were originally the work of F. Kenton Musgrave. For
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documentation of the different functions please refer to the book:
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"Texturing and modeling: a procedural approach"
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by David S. Ebert et. al.
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******************************************************************/
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#ifndef _fbm_h
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#define _fbm_h
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#include <math.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define TRUE 1
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#define FALSE 0
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typedef struct {
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double x;
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double y;
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double z;
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} Vector;
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double fBm( Vector point, double H, double lacunarity, double octaves,
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int init );
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#endif
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#ifdef __cplusplus
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}
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#endif
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