Abstract class defining the interface for objects that buffer geometry for later rendering. More...

Inherited by CEGUI::Direct3D10GeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::DirectFBGeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OgreGeometryBuffer, and CEGUI::OpenGLGeometryBuffer.

Public Member Functions
virtual	~GeometryBuffer ()
	Destructor.

virtual void	draw () const =0
	Draw the geometry buffered within this GeometryBuffer object.

virtual void	setTranslation (const Vector3 &v)=0
	Set the translation to be applied to the geometry in the buffer when it is subsequently rendered. More...

virtual void	setRotation (const Vector3 &r)=0
	Set the rotations to be applied to the geometry in the buffer when it is subsequently rendered. More...

virtual void	setPivot (const Vector3 &p)=0
	Set the pivot point to be used when applying the rotations. More...

virtual void	setClippingRegion (const Rect &region)=0
	Set the clipping region to be used when rendering this buffer.

virtual void	appendVertex (const Vertex &vertex)=0
	Append a single vertex to the buffer. More...

virtual void	appendGeometry (const Vertex *const vbuff, uint vertex_count)=0
	Append a number of vertices from an array to the GeometryBuffer. More...

virtual void	setActiveTexture (Texture *texture)=0
	Set the active texture to be used with all subsequently added vertices. More...

virtual void	reset ()=0
	Clear all buffered data and reset the GeometryBuffer to the default state.

virtual Texture *	getActiveTexture () const =0
	Return a pointer to the currently active Texture object. This may return 0 if no texture is set. More...

virtual uint	getVertexCount () const =0
	Return the total number of vertices currently held by this GeometryBuffer object. More...

virtual uint	getBatchCount () const =0
	Return the number of batches of geometry that this GeometryBuffer has split the vertices into. More...

virtual void	setRenderEffect (RenderEffect *effect)=0
	Set the RenderEffect to be used by this GeometryBuffer. More...

virtual RenderEffect *	getRenderEffect ()=0
	Return the RenderEffect object that is assigned to this GeometryBuffer or 0 if none.

Detailed Description

Abstract class defining the interface for objects that buffer geometry for later rendering.

Member Function Documentation

virtual void CEGUI::GeometryBuffer::appendGeometry	(	const Vertex *const	vbuff,
		uint	vertex_count
	)

pure virtual

Append a number of vertices from an array to the GeometryBuffer.

Parameters

vbuff	Pointer to an array of Vertex objects that describe the vertices that are to be added to the GeometryBuffer.
vertex_count	The number of Vertex objects from the array vbuff that are to be added to the GeometryBuffer.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::appendVertex ( const Vertex & vertex )

pure virtual

Append a single vertex to the buffer.

Parameters

vertex Vertex object describing the vertex to be added to the GeometryBuffer.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual Texture* CEGUI::GeometryBuffer::getActiveTexture ( ) const

pure virtual

Return a pointer to the currently active Texture object. This may return 0 if no texture is set.

Returns: Pointer the Texture object that is currently active, or 0 if texturing is not being used.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual uint CEGUI::GeometryBuffer::getBatchCount ( ) const

pure virtual

Return the number of batches of geometry that this GeometryBuffer has split the vertices into.

Note: How batching is done will be largely implementation specific, although it would be reasonable to expect that you will have at least one batch of geometry per texture switch.

Returns: The number of batches of geometry held by the GeometryBuffer.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual uint CEGUI::GeometryBuffer::getVertexCount ( ) const

pure virtual

Return the total number of vertices currently held by this GeometryBuffer object.

Returns: The number of vertices that have been appended to this GeometryBuffer.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::setActiveTexture ( Texture * texture )

pure virtual

Set the active texture to be used with all subsequently added vertices.

Parameters

texture Pointer to a Texture object that shall be used for subsequently added vertices. This may be 0, in which case texturing will be disabled for subsequently added vertices.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::setPivot ( const Vector3 & p )

pure virtual

Set the pivot point to be used when applying the rotations.

Parameters

p	Vector3 describing the location of the pivot point to be used when applying the rotation to the geometry.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::setRenderEffect ( RenderEffect * effect )

pure virtual

Set the RenderEffect to be used by this GeometryBuffer.

Parameters

effect Pointer to the RenderEffect to be used during renderng of the GeometryBuffer. May be 0 to remove a previously added RenderEffect.

Note: When adding a RenderEffect, the GeometryBuffer does not take ownership of, nor make a copy of, the passed RenderEffect - this means you need to be careful not to delete the RenderEffect if it might still be in use!

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::setRotation ( const Vector3 & r )

pure virtual

Set the rotations to be applied to the geometry in the buffer when it is subsequently rendered.

Parameters

r	Vector3 describing the rotation factors to be used.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

virtual void CEGUI::GeometryBuffer::setTranslation ( const Vector3 & v )

pure virtual

Set the translation to be applied to the geometry in the buffer when it is subsequently rendered.

Parameters

v	Vector3 describing the three axis translation vector to be used.

Implemented in CEGUI::OgreGeometryBuffer, CEGUI::Direct3D9GeometryBuffer, CEGUI::Direct3D10GeometryBuffer, CEGUI::IrrlichtGeometryBuffer, CEGUI::OpenGLGeometryBuffer, and CEGUI::DirectFBGeometryBuffer.

Public Member Functions

Detailed Description

Member Function Documentation