qt5base-lts/examples/graphicsview/boxes/3rdparty/fbm.h
Casper van Donderen e0d5221957 Move all other demos in qtbase to examples.
Change-Id: Iab0e7364d1f6b348d0e3033ea9304139f5bd6d0d
Reviewed-on: http://codereview.qt.nokia.com/617
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: David Boddie
2011-06-24 16:47:24 +02:00

41 lines
779 B
C

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