Ogre::GLRenderToVertexBuffer Class Reference

An object which renders geometry to a vertex. More...

#include <OgreGLRenderToVertexBuffer.h>

Inheritance diagram for Ogre::GLRenderToVertexBuffer:

Collaboration diagram for Ogre::GLRenderToVertexBuffer:

Public Member Functions
	GLRenderToVertexBuffer ()
	C'tor. More...
virtual	~GLRenderToVertexBuffer ()
	D'tor. More...
unsigned int	getMaxVertexCount () const
	Get the maximum number of vertices that the buffer will hold. More...
RenderOperation::OperationType	getOperationType () const
	What type of primitives does this object generate? More...
virtual void	getRenderOperation (RenderOperation &op)
	Get the render operation for this buffer. More...
const MaterialPtr &	getRenderToBufferMaterial ()
	Get the material which is used to render the geometry into the vertex buffer. More...
bool	getResetsEveryUpdate () const
	Does this object reset its buffer each time it updates? More...
const Renderable *	getSourceRenderable () const
	Get the source renderable of this object. More...
VertexDeclaration *	getVertexDeclaration ()
	Get the vertex declaration that the pass will output. More...
virtual void	reset ()
	Reset the vertex buffer to the initial state. More...
void	setMaxVertexCount (unsigned int maxVertexCount)
	Set the maximum number of vertices that the buffer will hold. More...
void	setOperationType (RenderOperation::OperationType operationType)
	Set the type of primitives that this object generates. More...
void	setRenderToBufferMaterialName (const String &materialName)
	Set the material name which is used to render the geometry into the vertex buffer. More...
void	setResetsEveryUpdate (bool resetsEveryUpdate)
	Set wether this object resets its buffers each time it updates. More...
void	setSourceRenderable (Renderable *source)
	Set the source renderable of this object. More...
virtual void	update (SceneManager *sceneMgr)
	Update the contents of this vertex buffer by rendering. More...

Protected Member Functions
void	bindVerticesOutput (Pass *pass)
GLint	getGLSemanticType (VertexElementSemantic semantic)
String	getSemanticVaryingName (VertexElementSemantic semantic, unsigned short index)
void	reallocateBuffer (size_t index)

Protected Attributes
size_t	mFrontBufferIndex
MaterialPtr	mMaterial
unsigned int	mMaxVertexCount
RenderOperation::OperationType	mOperationType
GLuint	mPrimitivesDrawnQuery
bool	mResetRequested
bool	mResetsEveryUpdate
Renderable *	mSourceRenderable
HardwareVertexBufferSharedPtr	mVertexBuffers [2]
VertexData *	mVertexData

Detailed Description

An object which renders geometry to a vertex.

Remarks

This is especially useful together with geometry shaders, as you can render procedural geometry which will get saved to a vertex buffer for reuse later, without regenerating it again. You can also create shaders that run on previous results of those shaders, creating stateful shaders.

Definition at line 44 of file OgreGLRenderToVertexBuffer.h.

Constructor & Destructor Documentation

Ogre::GLRenderToVertexBuffer::GLRenderToVertexBuffer

(

)

C'tor.

virtual Ogre::GLRenderToVertexBuffer::~GLRenderToVertexBuffer ( )

virtual

D'tor.

Member Function Documentation

void Ogre::GLRenderToVertexBuffer::bindVerticesOutput ( Pass *  pass )

protected

GLint Ogre::GLRenderToVertexBuffer::getGLSemanticType ( VertexElementSemantic  semantic )

protected

unsigned int Ogre::RenderToVertexBuffer::getMaxVertexCount ( ) const

inlineinherited

Get the maximum number of vertices that the buffer will hold.

Definition at line 70 of file OgreRenderToVertexBuffer.h.

RenderOperation::OperationType Ogre::RenderToVertexBuffer::getOperationType ( ) const

inlineinherited

What type of primitives does this object generate?

Definition at line 80 of file OgreRenderToVertexBuffer.h.

virtual void Ogre::GLRenderToVertexBuffer::getRenderOperation ( RenderOperation &  op )

virtual

Get the render operation for this buffer.

Implements Ogre::RenderToVertexBuffer.

const MaterialPtr& Ogre::RenderToVertexBuffer::getRenderToBufferMaterial ( )

inlineinherited

Get the material which is used to render the geometry into the vertex buffer.

Definition at line 129 of file OgreRenderToVertexBuffer.h.

bool Ogre::RenderToVertexBuffer::getResetsEveryUpdate ( ) const

inlineinherited

Does this object reset its buffer each time it updates?

Definition at line 95 of file OgreRenderToVertexBuffer.h.

String Ogre::GLRenderToVertexBuffer::getSemanticVaryingName ( VertexElementSemantic  semantic, unsigned short  index  )

protected

const Renderable* Ogre::RenderToVertexBuffer::getSourceRenderable ( ) const

inlineinherited

Get the source renderable of this object.

Definition at line 123 of file OgreRenderToVertexBuffer.h.

VertexDeclaration* Ogre::RenderToVertexBuffer::getVertexDeclaration ( )

inherited

Get the vertex declaration that the pass will output.

Remarks

Use this object to set the elements of the buffer. Object will calculate buffers on its own. Only one source allowed!

void Ogre::GLRenderToVertexBuffer::reallocateBuffer ( size_t  index )

protected

virtual void Ogre::RenderToVertexBuffer::reset ( void  )

inlinevirtualinherited

Reset the vertex buffer to the initial state.

In the next update, the source renderable will be used as input.

Definition at line 111 of file OgreRenderToVertexBuffer.h.

void Ogre::RenderToVertexBuffer::setMaxVertexCount ( unsigned int  maxVertexCount )

inlineinherited

Set the maximum number of vertices that the buffer will hold.

Definition at line 75 of file OgreRenderToVertexBuffer.h.

void Ogre::RenderToVertexBuffer::setOperationType ( RenderOperation::OperationType  operationType )

inlineinherited

Set the type of primitives that this object generates.

Definition at line 85 of file OgreRenderToVertexBuffer.h.

void Ogre::RenderToVertexBuffer::setRenderToBufferMaterialName ( const String &  materialName )

inherited

Set the material name which is used to render the geometry into the vertex buffer.

void Ogre::RenderToVertexBuffer::setResetsEveryUpdate ( bool  resetsEveryUpdate )

inlineinherited

Set wether this object resets its buffers each time it updates.

Definition at line 90 of file OgreRenderToVertexBuffer.h.

void Ogre::RenderToVertexBuffer::setSourceRenderable ( Renderable *  source )

inlineinherited

Set the source renderable of this object.

During the first (and perhaps later) update of this object, this object's data will be used as input)

Definition at line 118 of file OgreRenderToVertexBuffer.h.

virtual void Ogre::GLRenderToVertexBuffer::update ( SceneManager *  sceneMgr )

virtual

Update the contents of this vertex buffer by rendering.

Implements Ogre::RenderToVertexBuffer.

Member Data Documentation

size_t Ogre::GLRenderToVertexBuffer::mFrontBufferIndex

protected

Definition at line 67 of file OgreGLRenderToVertexBuffer.h.

MaterialPtr Ogre::RenderToVertexBuffer::mMaterial

protectedinherited

Definition at line 140 of file OgreRenderToVertexBuffer.h.

unsigned int Ogre::RenderToVertexBuffer::mMaxVertexCount

protectedinherited

Definition at line 143 of file OgreRenderToVertexBuffer.h.

RenderOperation::OperationType Ogre::RenderToVertexBuffer::mOperationType

protectedinherited

Definition at line 137 of file OgreRenderToVertexBuffer.h.

GLuint Ogre::GLRenderToVertexBuffer::mPrimitivesDrawnQuery

protected

Definition at line 68 of file OgreGLRenderToVertexBuffer.h.

bool Ogre::RenderToVertexBuffer::mResetRequested

protectedinherited

Definition at line 139 of file OgreRenderToVertexBuffer.h.

bool Ogre::RenderToVertexBuffer::mResetsEveryUpdate

protectedinherited

Definition at line 138 of file OgreRenderToVertexBuffer.h.

Renderable* Ogre::RenderToVertexBuffer::mSourceRenderable

protectedinherited

Definition at line 141 of file OgreRenderToVertexBuffer.h.

HardwareVertexBufferSharedPtr Ogre::GLRenderToVertexBuffer::mVertexBuffers[2]

protected

Definition at line 66 of file OgreGLRenderToVertexBuffer.h.

VertexData* Ogre::RenderToVertexBuffer::mVertexData

protectedinherited

Definition at line 142 of file OgreRenderToVertexBuffer.h.

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

• OgreGLRenderToVertexBuffer.h