pstools.cpp File Reference

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Detailed Description

Implementation of particle system tools.

Date:

June 12, 2001

Author:

Hans Pedersen

Remarks:

Adapted for use with the Advanced Surface Library by Ed Bachta

Definition in file pstools.cpp.

#include <math.h>
#include <stdlib.h>
#include "pstools.h"

Include dependency graph for pstools.cpp:

Go to the source code of this file.

Defines
#define	MY_EXP_RES   10000
#define	MY_EXP_RANGE   6.
#define	MY_EXP_DELTA   .0012
#define	MY_EXP_TABLE_RES   10001
Functions
double	psRandom (void)
	Random number generator.
void	clampInt (int &x, int max)
	Clamps x to [0,max-1].
gmVector3	randOrtho (gmVector3 x)
	Generates a radom orthogonal vector.
double	fastExp (double arg)
	Fast approximation to exp.

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Define Documentation

#define MY_EXP_DELTA   .0012

#define MY_EXP_RANGE   6.

#define MY_EXP_RES   10000

#define MY_EXP_TABLE_RES   10001

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Function Documentation

void clampInt (  int &  x, int  max )

Clamps x to [0,max-1]. Parameters: x  Value to clamp. max  Maximum value to clamp to. Definition at line 29 of file pstools.cpp. Referenced by ParticleLocalityGrid::findCell().

double fastExp (  double  arg  )

Fast approximation to exp. Parameters: arg  power to raise e to. Returns: e^arg. Definition at line 72 of file pstools.cpp. Referenced by ParticleRepulsion::applyForce(), and SingularityRepulsion::repelTarget().

double psRandom (  void   )

Random number generator. Returns: The random number. Definition at line 18 of file pstools.cpp. Referenced by SilhouetteFate::cleanup(), and ParticleFate::cleanup().

gmVector3 randOrtho (  gmVector3  x  )

Generates a radom orthogonal vector. Parameters: x  A vector. Returns: A vector orthogonal to x. Definition at line 43 of file pstools.cpp. Referenced by ParticleFate::cleanup(), SilhouetteFate::cleanup(), and ParticleRendererGL::drawDisk().

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