ShadowVolume is a structure for storing shadow volume geometries. More...

Public Types
enum	ShadowMethod { SHADOW_NONE = 0, SHADOW_Z_PASS, SHADOW_Z_FAIL }

Public Member Functions
void	Reset ()
	current view matrix More...

void	ReserveNewBlock (Vector3 **pVertices, int nSize)

void	CommitBlock (int nSize)

void	BuildFromShadowCaster (ShadowCaster pCaster, LightParams pLight)

void	ReCalculateOcclusionPyramid (CAutoCamera *pCamera)
	recalculate occlusion pyramid

void	UpdateProjectionInfo (const ParaViewport pViewport, const Matrix4 pProj, const Matrix4 *pView)
	update projection information

void	ProjectPoint (Vector3 pOut, const Vector3 pV, const Matrix4 *pWorld)
	project point to screen

bool	PointsInsideOcclusionPyramid (Vector3 *pVecBounds, int nCount)
	check if the region inside the points intersect with the occlusion pyramid

void	SetLightParams (LightParams *l)
	set current light

HRESULT	Render (SceneState *sceneState)
	render without states overhead

HRESULT	RenderZPassShadow (SceneState *sceneState)
	render to stencil with Z Pass

HRESULT	RenderZFailShadow (SceneState *sceneState)
	render to stencil with Z Fail

Public Attributes
int	m_nVertexArraySize

Vector3 *	m_pVertices
	initial value is 32000, doubled when exceeded

int	m_nNumVertices
	Vertex data for rendering shadow volume.

LinearColor	m_shadowColor
	number of vertices in the shadow volume, it must be multiple of 6, since 6 vertices will describe a face.

ShadowMethod	m_shadowMethod
	the color of the shadow, alpha enabled.

LightParams *	m_pLightParam
	in which way, the data in this shadow volume should be drawn

Plane	occlusionPyramid [5]
	current light info associated with the shadow volume

Static Public Attributes
static float	m_fMinShadowCastDistance = MIN_SHADOW_CAST_DISTANCE

Protected Attributes
ParaViewport	m_viewport
	used to decide whether to use Z-Fail or Z pass method

Matrix4	m_matProjection
	current viewport for projection

Matrix4	m_matView
	current projection matrix

Detailed Description

ShadowVolume is a structure for storing shadow volume geometries.

Member Function Documentation

void ShadowVolume::ReserveNewBlock	(	Vector3 **	pVertices,
		int	nSize
	)

we have enough space for the new block.

void ParaEngine::ShadowVolume::Reset ( )

inline

current view matrix

reset the shadow volume to zero

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