#include <NodeOSG.h>

Inheritance diagram for vtDynGeom:

Public Member Functions
int	IsVisible (const FSphere &sphere) const

int	IsVisible (const FPoint3 &point0, const FPoint3 &point1, const FPoint3 &point2, const float fTolerance=0.0f) const

int	IsVisible (const FPoint3 &point, float radius)

bool	IsVisible (const FPoint3 &point) const

void	ApplyMaterial (vtMaterial *mat)

virtual void	DoRender ()=0

virtual void	DoCalcBoundBox (FBox3 &box)=0

virtual void	DoCull (const vtCamera *pCam)=0

Public Member Functions inherited from vtGeode
vtGeode *	CloneGeode ()

void	CloneFromGeode (const vtGeode *rhs)

void	AddMesh (vtMesh *pMesh, int iMatIdx)

void	RemoveMesh (vtMesh *pMesh)

void	AddTextMesh (vtTextMesh *pMesh, int iMatIdx)

uint	GetNumMeshes () const

vtMesh *	GetMesh (int i) const

vtTextMesh *	GetTextMesh (int i) const

virtual void	SetMaterials (const class vtMaterialArray *mats)

const vtMaterialArray *	GetMaterials () const

vtMaterial *	GetMaterial (int idx)

void	SetMeshMatIndex (vtMesh *pMesh, int iMatIdx)

Public Member Functions inherited from NodeExtension
void	SetEnabled (bool bOn)

bool	GetEnabled () const

void	SetCastShadow (bool b)
	Set this node to cast a shadow, if it is under a vtShadow node. Default is false.

bool	GetCastShadow ()
	Get whether this node casts a shadow.

void	GetBoundSphere (FSphere &sphere, bool bGlobal=false)
	Get the Bounding Sphere of the node.

void	SetOsgNode (osg::Node *n)

Public Attributes
FPlane	m_cullPlanes [6]

Public Attributes inherited from vtGeode
osg::ref_ptr< const vtMaterialArray >	m_pMaterialArray

Public Attributes inherited from NodeExtension
osg::Node *	m_pNode

bool	m_bCastShadow

Protected Attributes
OsgDynMesh *	m_pDynMesh

Detailed Description

vtDynGeom extends the vtGeode class with the ability to have dynamic geometry which changes every frame. The most prominent use of this feature is to do Continuous Level of Detail (CLOD) for terrain.

To implement, you must create your own subclass and override the following methods:

DoRender()
DoCalcBoundBox()
DoCull()

Many helpful methods are provided to make doing your own view culling very easy:

IsVisible(sphere)
IsVisible(triangle)
IsVisible(point)

See Also: vtDynTerrainGeom

Member Function Documentation

int vtDynGeom::IsVisible ( const FSphere & sphere) const

Test a sphere against the view volume.

Returns: VT_AllVisible if entirely inside the volume, VT_Visible if partly inside, otherwise 0.

int vtDynGeom::IsVisible	(	const FPoint3 &	point0,
		const FPoint3 &	point1,
		const FPoint3 &	point2,
		const float	fTolerance = `0.0f`
	)		const

Test a 3d triangle against the view volume.

Returns: VT_AllVisible if entirely inside the volume, VT_Visible if partly intersecting, otherwise 0.

int vtDynGeom::IsVisible	(	const FPoint3 &	point,
		float	radius
	)

Test a sphere against the view volume.

Returns: VT_AllVisible if entirely inside the volume, VT_Visible if partly intersecting, otherwise 0.

bool vtDynGeom::IsVisible ( const FPoint3 & point) const

Test a single point against the view volume.

Returns: true if inside, false if outside.

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

D:/job/3kb/gelistirme/umasoft/vtp-src/VTP/TerrainSDK/vtlib/vtosg/NodeOSG.h
D:/job/3kb/gelistirme/umasoft/vtp-src/VTP/TerrainSDK/vtlib/vtosg/NodeOSG.cpp

Public Member Functions

Public Attributes

Protected Attributes

Detailed Description

Member Function Documentation