GenClouds.cpp File Reference

#include <iostream>
#include <cstdlib>
#include <vreckoAP/Nature/Clouds/GenClouds.h>
#include <vreckoAP/Nature/Clouds/math_aux.h>

Macros
#define	NX   100
#define	NY   100
#define	NZ   100

Functions
void	InitCloudGrowth (int ellips_a, int ellips_b, int ellips_c)
bool	f_act (unsigned int i, unsigned int j, unsigned int k)
void	GrowthSimulation (int timeSteps)
float	weightedSum (unsigned int i, unsigned int j, unsigned int k)
void	CreateCloudFromVoxels (Cloud &cloud, const osg::Vec3f &cloudPos, float scale)

Variables
CloudVoxel	voxel_space [NX][NY][NZ]
int	ellipsoid_2a = 0
int	ellipsoid_2b = 0
int	ellipsoid_2c = 0

Detailed Description

Author

Jakub Kroupal (original Atmospheric plug-in)

Rastislav Tisovcik (revised Clouds ability)

Version

2.0

Date

2008 (Atmospheric), January 2011 (Clouds)

Macro Definition Documentation

#define NX   100

#define NY   100

#define NZ   100

Function Documentation

void CreateCloudFromVoxels	(	Cloud &	cloud,
		const osg::Vec3f &	cloudPos,
		float	scale
	)

Converts the voxel space into the final cloud

Parameters

[in]	cloud	Instance of a cloud which is used to store the data from the voxel space
[in]	cloudPos	Position of the cloud in the scene
[in]	scale	Scale of the cloud

bool f_act	(	unsigned int	i,
		unsigned int	j,
		unsigned int	k
	)

Function computing the active value of the given cell as described in the thesis (p.3, formula 2.4)

Parameters

[in]	i	X-coordinate of the voxel in the cloud
[in]	j	Y-coordinate of the voxel in the cloud
[in]	k	Z-coordinate of the voxel in the cloud

void GrowthSimulation

(

int

timeSteps

)

Simulates the growth of the cloud

Parameters

timeSteps

Number of steps the generation process should take

void InitCloudGrowth	(	int	ellips_a,
		int	ellips_b,
		int	ellips_c
	)

Initializes the growth simulation of the cloud

Parameters

[in]	ellips_a	Size of the half-axis a of the ellipsoid
[in]	ellips_b	Size of the half-axis b of the ellipsoid
[in]	ellips_c	Size of the half-axis c of the ellipsoid

float weightedSum	(	unsigned int	i,
		unsigned int	j,
		unsigned int	k
	)

Computes the weighted sum of the cloud cell and cells related to it.

Parameters

[in]	i	X coordinate of the cloud cell in the voxel space
[in]	j	Y coordinate of the cloud cell in the voxel space
[in]	k	Z coordinate of the cloud cell in the voxel space

Returns

Weighted sum of the cloud cell and cells related to it.

Variable Documentation

int ellipsoid_2a = 0

int ellipsoid_2b = 0

int ellipsoid_2c = 0

CloudVoxel voxel_space[NX][NY][NZ]