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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;
+
+float noise3(float vec[]);
+double fBm( Vector point, double H, double lacunarity, double octaves,
+ int init );
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+