vmmlib  1.8.0
Templatized C++ vector and matrix math library
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vmml::frustum_culler< T > Class Template Reference

Helper class for OpenGL view frustum culling. More...

#include <frustum_culler.hpp>

+ Collaboration diagram for vmml::frustum_culler< T >:

Public Types

typedef vector< 2, T > vec2
 
typedef vector< 3, T > vec3
 
typedef vector< 4, T > vec4
 

Public Member Functions

void setup (const matrix< 4, 4, T > &proj_modelview)
 Set up the culling state using a 4x4 projection*modelView matrix. More...
 
void setup (const vec3 &nlt, const vec3 &nrt, const vec3 &nlb, const vec3 &nrb, const vec3 &flt, const vec3 &frt, const vec3 &flb, const vec3 &frb)
 Set up the culling state using the eight frustum corner points. More...
 
Visibility test_sphere (const vec4 &sphere) const
 
Visibility test_aabb (const vec2 &x, const vec2 &y, const vec2 &z) const
 

Friends

std::ostream & operator<< (std::ostream &os, const frustum_culler &f)
 

Detailed Description

template<class T>
class vmml::frustum_culler< T >

Helper class for OpenGL view frustum culling.

Definition at line 47 of file frustum_culler.hpp.

Member Function Documentation

template<class T >
void vmml::frustum_culler< T >::setup ( const matrix< 4, 4, T > &  proj_modelview)

Set up the culling state using a 4x4 projection*modelView matrix.

Setup the culler by extracting the frustum planes from the projection matrix.

The projection matrix should contain the viewing transformation.

Definition at line 119 of file frustum_culler.hpp.

template<class T >
void vmml::frustum_culler< T >::setup ( const vec3 nlt,
const vec3 nrt,
const vec3 nlb,
const vec3 nrb,
const vec3 flt,
const vec3 frt,
const vec3 flb,
const vec3 frb 
)

Set up the culling state using the eight frustum corner points.

Corner naming is n(ear)|f(ar), l(eft)|r(ight), t(op)|b(ottom)

Definition at line 144 of file frustum_culler.hpp.


The documentation for this class was generated from the following file: