U4DEngine::U4DVisibilityCulling Class Reference

The U4DVisibilityCulling class tests whether a 3D model is within the frustum. More...

Public Member Functions
	U4DVisibilityCulling ()
	class constructor
	~U4DVisibilityCulling ()
	class destructor
bool	aabbInFrustum (std::vector< U4DPlane > &uPlanes, U4DAABB *uAABB)
	check if all the points of the AABB intersect or are inside the plane More...
void	startFrustumIntersection (std::vector< std::shared_ptr< U4DBVHNode< U4DModel >>> &uTreeContainer, std::vector< U4DPlane > &uPlanes)
	starts the frustum intersection More...
void	testFrustumIntersection (U4DBVHNode< U4DModel > *uTreeLeftNode, U4DBVHNode< U4DModel > *uTreeRightNode, std::vector< U4DPlane > &uPlanes)
	tests the frustum intersection More...

Detailed Description

The U4DVisibilityCulling class tests whether a 3D model is within the frustum.

Member Function Documentation

aabbInFrustum()

bool U4DEngine::U4DVisibilityCulling::aabbInFrustum	(	std::vector< U4DPlane > &	uPlanes,
		U4DAABB *	uAABB
	)

check if all the points of the AABB intersect or are inside the plane

Parameters

uPlanes	camera planes
uAABB	AABB box encompassing the 3D models

Returns

true if all AABB points are inside the plane

startFrustumIntersection()

void U4DEngine::U4DVisibilityCulling::startFrustumIntersection	(	std::vector< std::shared_ptr< U4DBVHNode< U4DModel >>> &	uTreeContainer,
		std::vector< U4DPlane > &	uPlanes
	)

starts the frustum intersection

Parameters

uTreeContainer	tree containing the AABB boxes encompassing the 3D models
uPlanes	camera planes

testFrustumIntersection()

void U4DEngine::U4DVisibilityCulling::testFrustumIntersection	(	U4DBVHNode< U4DModel > *	uTreeLeftNode,
		U4DBVHNode< U4DModel > *	uTreeRightNode,
		std::vector< U4DPlane > &	uPlanes
	)

tests the frustum intersection

Parameters

uTreeLeftNode	left node of tree containing the AABB boxes encompassing the 3D models
uTreeRightNode	right node of tree containing the AABB boxes encompassing the 3D models
uPlanes	camera planes