vmml::FrustumCuller< T > Class Template Reference

Helper class to perform OpenGL view frustum culling. More...

#include <frustumCuller.hpp>

Collaboration diagram for vmml::FrustumCuller< T >:

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

Public Member Functions
	FrustumCuller ()
	Construct a new frustum culler.
	FrustumCuller (const Matrix< 4, 4, T > &projModelView)
	Construct a frustum culler using a 4x4 projection*model*view matrix. More...
	FrustumCuller (const vec3 &nlt, const vec3 &nrt, const vec3 &nlb, const vec3 &nrb, const vec3 &flt, const vec3 &frt, const vec3 &flb, const vec3 &frb)
	Construct a frustum culler using the eight frustum corner points. More...
	~FrustumCuller ()
	Destruct this frustum culler. More...
Visibility	test (const vec4 &sphere) const
Visibility	test (const AABB< T > &aabb) const
const vec4 &	getNearPlane () const

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

Detailed Description

template<typename T>
class vmml::FrustumCuller< T >

Helper class to perform OpenGL view frustum culling.

Definition at line 47 of file frustumCuller.hpp.

Constructor & Destructor Documentation

template<typename T >

vmml::FrustumCuller< T >::FrustumCuller ( const Matrix< 4, 4, T > &  projModelView )

explicit

Construct a frustum culler using a 4x4 projection*model*view matrix.

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

The projection matrix should contain the viewing transformation.

Definition at line 117 of file frustumCuller.hpp.

template<typename T >

vmml::FrustumCuller< T >::FrustumCuller	(	const vec3 &	nlt,
		const vec3 &	nrt,
		const vec3 &	nlb,
		const vec3 &	nrb,
		const vec3 &	flt,
		const vec3 &	frt,
		const vec3 &	flb,
		const vec3 &	frb
	)

Construct a frustum culler using the eight frustum corner points.

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

Definition at line 141 of file frustumCuller.hpp.

template<typename T >

vmml::FrustumCuller< T >::~FrustumCuller ( )

inline

Destruct this frustum culler.

Definition at line 70 of file frustumCuller.hpp.

Member Function Documentation

template<typename T >

const vec4& vmml::FrustumCuller< T >::getNearPlane ( ) const

inline

Returns

the plane equation of the current near plane.

Definition at line 79 of file frustumCuller.hpp.

template<typename T >

Visibility vmml::FrustumCuller< T >::test

(

const vec4 &

sphere

)

const

Returns

the visibility of the given sphere

Definition at line 174 of file frustumCuller.hpp.

template<typename T >

Visibility vmml::FrustumCuller< T >::test

(

const AABB< T > &

aabb

)

const

Returns

the visibility of the axis-aligned bounding box

Definition at line 249 of file frustumCuller.hpp.

References vmml::AABB< T >::getCenter(), and vmml::AABB< T >::getSize().

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

• frustumCuller.hpp