Tucano::Frustum Class Reference

#include <frustum.hpp>

Public Member Functions
	Frustum (const Matrix4f &mvp)
	~Frustum ()
void	update (const Matrix4f &mvp)
bool	isCullable (const Box &box)

Private Types
using	Plane = Hyperplane< float, 3 >
using	Box = AlignedBox< float, 3 >

Private Member Functions
void	extractPlanes (const Matrix4f &mvp, const bool &normalize)

Private Attributes
vector< Plane * >	m_planes

Friends
ostream &	operator<< (ostream &out, const Frustum &f)

Detailed Description

Camera's frustum. Provide culling of axis-aligned boxes. The camera frustum planes will be in model coordinates. To get the planes in world coordinates, pass a view-projection matrix instead of a model-view-projection

Member Typedef Documentation

using Tucano::Frustum::Box = AlignedBox< float, 3 >

private

using Tucano::Frustum::Plane = Hyperplane< float, 3 >

private

Constructor & Destructor Documentation

Tucano::Frustum::Frustum ( const Matrix4f &  mvp )

inline

Parameters

mvp	is the model-view-projection matrix.

Tucano::Frustum::~Frustum ( )

inline

Member Function Documentation

void Tucano::Frustum::extractPlanes ( const Matrix4f &  mvp, const bool &  normalize  )

inlineprivate

Algorithm for extraction of the 6 frustum planes from the model-view-projection matrix as explained in paper Fast Extraction of Viewing Frustum Planes from the World-View-Projection Matrix. Available in . normalize indicates that the final plane equation should be normalized.

bool Tucano::Frustum::isCullable ( const Box &  box )

inline

Performs optimized view frustum culling as explained in paper Optimized View Frustum Culling Algorithms for Bounding Boxes. Available in: Differently from the algorithm there, we don't distinguish intersection and outside cases. true if the box is outside the frustum, false otherwise.

void Tucano::Frustum::update ( const Matrix4f &  mvp )

inline

Updates the frustrum after changing camera.

Parameters

mvp	is the model-view-projection matrix.

Friends And Related Function Documentation

ostream& operator<< ( ostream &  out, const Frustum &  f  )

friend

Member Data Documentation

vector< Plane* > Tucano::Frustum::m_planes

private

Frustum planes.

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

• tucano/utils/frustum.hpp