Ogre::StaticGeometry::GeometryBucket Class Reference

A GeometryBucket is a the lowest level bucket where geometry with the same vertex & index format is stored. More...

#include <OgreStaticGeometry.h>

Inheritance diagram for Ogre::StaticGeometry::GeometryBucket:

List of all members.


Public Member Functions
	GeometryBucket (MaterialBucket parent, const String &formatString, const VertexData vData, const IndexData *iData)
virtual	~GeometryBucket ()
MaterialBucket *	getParent (void)
const VertexData *	getVertexData (void) const
	Get the vertex data for this geometry.
const IndexData *	getIndexData (void) const
	Get the index data for this geometry.
const MaterialPtr &	getMaterial (void) const
	Remarks: Note that the Renderable also has the option to override the getTechnique method to specify a particular Technique to use instead of the best one available.
Technique *	getTechnique (void) const
	Retrieves a pointer to the Material Technique this renderable object uses.
void	getRenderOperation (RenderOperation &op)
	Gets the render operation required to send this object to the frame buffer.
void	getWorldTransforms (Matrix4 *xform) const
	Gets the world transform matrix / matrices for this renderable object.
const Quaternion &	getWorldOrientation (void) const
	Gets the worldspace orientation of this renderable; this is used in order to more efficiently update parameters to vertex & fragment programs, since inverting Quaterion and Vector in order to derive object-space positions / directions for cameras and lights is much more efficient than inverting a complete 4x4 matrix, and also eliminates problems introduced by scaling.
const Vector3 &	getWorldPosition (void) const
	Gets the worldspace orientation of this renderable; this is used in order to more efficiently update parameters to vertex & fragment programs, since inverting Quaterion and Vector in order to derive object-space positions / directions for cameras and lights is much more efficient than inverting a complete 4x4 matrix, and also eliminates problems introduced by scaling.
Real	getSquaredViewDepth (const Camera *cam) const
	Returns the camera-relative squared depth of this renderable.
const LightList &	getLights (void) const
	Gets a list of lights, ordered relative to how close they are to this renderable.
bool	getCastsShadows (void) const
	Method which reports whether this renderable would normally cast a shadow.
bool	assign (QueuedGeometry *qsm)
	Try to assign geometry to this bucket.
void	build (bool stencilShadows)
	Build.
void	dump (std::ofstream &of) const
	Dump contents for diagnostics.
virtual unsigned short	getNumWorldTransforms (void) const
	Returns the number of world transform matrices this renderable requires.
virtual bool	useIdentityProjection (void) const
	Returns whether or not to use an 'identity' projection.
virtual bool	useIdentityView (void) const
	Returns whether or not to use an 'identity' projection.
virtual SceneDetailLevel	getRenderDetail () const
	Returns the preferred rasterisation mode of this renderable.
virtual bool	getNormaliseNormals (void) const
	Returns whether or not this Renderable wishes the hardware to normalise normals.
virtual const PlaneList &	getClipPlanes () const
void	setCustomParameter (size_t index, const Vector4 &value)
	Sets a custom parameter for this Renderable, which may be used to drive calculations for this specific Renderable, like GPU program parameters.
const Vector4 &	getCustomParameter (size_t index) const
	Gets the custom value associated with this Renderable at the given index.
virtual void	_updateCustomGpuParameter (const GpuProgramParameters::AutoConstantEntry &constantEntry, GpuProgramParameters *params) const
	Update a custom GpuProgramParameters constant which is derived from information only this Renderable knows.
virtual void	setRenderDetailOverrideable (bool override)
	Sets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.
virtual bool	getRenderDetailOverrideable (void) const
	Gets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.
Protected Types
typedef std::map< size_t, Vector4 >	CustomParameterMap
Protected Member Functions
template<typename T> void	copyIndexes (const T src, T dst, size_t count, size_t indexOffset)
Protected Attributes
QueuedGeometryList	mQueuedGeometry
	Geometry which has been queued up pre-build (not for deallocation).
MaterialBucket *	mParent
	Pointer to parent bucket.
String	mFormatString
	String identifying the vertex / index format.
VertexData *	mVertexData
	Vertex information, includes current number of vertices committed to be a part of this bucket.
IndexData *	mIndexData
	Index information, includes index type which limits the max number of vertices which are allowed in one bucket.
HardwareIndexBuffer::IndexType	mIndexType
	Size of indexes.
size_t	mMaxVertexIndex
	Maximum vertex indexable.
CustomParameterMap	mCustomParameters
bool	mRenderDetailOverrideable
Static Protected Attributes
const PlaneList	msDummyPlaneList

Detailed Description

A GeometryBucket is a the lowest level bucket where geometry with the same vertex & index format is stored.

It also acts as the renderable.

Definition at line 177 of file OgreStaticGeometry.h.

Member Typedef Documentation

typedef std::map<size_t, Vector4> Ogre::Renderable::CustomParameterMap [protected, inherited]

Definition at line 251 of file OgreRenderable.h.

Constructor & Destructor Documentation

Ogre::StaticGeometry::GeometryBucket::GeometryBucket ( MaterialBucket * parent,

const String & formatString,

const VertexData * vData,

const IndexData * iData

)

virtual Ogre::StaticGeometry::GeometryBucket::~GeometryBucket ( ) [virtual]

Member Function Documentation

virtual void Ogre::Renderable::_updateCustomGpuParameter ( const GpuProgramParameters::AutoConstantEntry & constantEntry,

GpuProgramParameters * params

) const [virtual, inherited]

Update a custom GpuProgramParameters constant which is derived from information only this Renderable knows.

Remarks:
This method allows a Renderable to map in a custom GPU program parameter based on it's own data. This is represented by a GPU auto parameter of ACT_CUSTOM, and to allow there to be more than one of these per Renderable, the 'data' field on the auto parameter will identify which parameter is being updated. The implementation of this method must identify the parameter being updated, and call a 'setConstant' method on the passed in GpuProgramParameters object, using the details provided in the incoming auto constant setting to identify the index at which to set the parameter.

You do not need to override this method if you're using the standard sets of data associated with the Renderable as provided by setCustomParameter and getCustomParameter. By default, the implementation will map from the value indexed by the 'constantEntry.data' parameter to a value previously set by setCustomParameter. But custom Renderables are free to override this if they want, in any case.

Parameters:

constantEntry The auto constant entry referring to the parameter being updated

params The parameters object which this method should call to set the updated parameters.

Reimplemented in Ogre::TerrainRenderable.
Definition at line 219 of file OgreRenderable.h.
References Ogre::GpuProgramParameters::AutoConstantEntry::data, Ogre::GpuProgramParameters::AutoConstantEntry::index, and params.

bool Ogre::StaticGeometry::GeometryBucket::assign ( QueuedGeometry * qsm )

Try to assign geometry to this bucket.

Returns:
false if there is no room left in this bucket

void Ogre::StaticGeometry::GeometryBucket::build ( bool stencilShadows )

Build.

template<typename T>

void Ogre::StaticGeometry::GeometryBucket::copyIndexes ( const T * src,

T * dst,

size_t count,

size_t indexOffset

) [protected]

Definition at line 198 of file OgreStaticGeometry.h.

void Ogre::StaticGeometry::GeometryBucket::dump ( std::ofstream & of ) const

Dump contents for diagnostics.

bool Ogre::StaticGeometry::GeometryBucket::getCastsShadows ( void ) const [virtual]

Method which reports whether this renderable would normally cast a shadow.

Remarks:
Subclasses should override this if they could have been used to generate a shadow.

Reimplemented from Ogre::Renderable.

virtual const PlaneList& Ogre::Renderable::getClipPlanes ( ) const [virtual, inherited]

Definition at line 146 of file OgreRenderable.h.
References Ogre::PlaneList.

const Vector4& Ogre::Renderable::getCustomParameter ( size_t index ) const [inherited]

Gets the custom value associated with this Renderable at the given index.

Parameters:

@see setCustomParaemter for full details.

Definition at line 180 of file OgreRenderable.h.
References OGRE_EXCEPT.

const IndexData* Ogre::StaticGeometry::GeometryBucket::getIndexData ( void ) const

Get the index data for this geometry.

Definition at line 220 of file OgreStaticGeometry.h.

const LightList& Ogre::StaticGeometry::GeometryBucket::getLights ( void ) const [virtual]

Gets a list of lights, ordered relative to how close they are to this renderable.

Remarks:
Directional lights, which have no position, will always be first on this list.

Implements Ogre::Renderable.

const MaterialPtr& Ogre::StaticGeometry::GeometryBucket::getMaterial ( void ) const [virtual]

Remarks:
Note that the Renderable also has the option to override the getTechnique method to specify a particular Technique to use instead of the best one available.

Implements Ogre::Renderable.

virtual bool Ogre::Renderable::getNormaliseNormals ( void ) const [virtual, inherited]

Returns whether or not this Renderable wishes the hardware to normalise normals.

Reimplemented in Ogre::SubEntity.
Definition at line 138 of file OgreRenderable.h.

virtual unsigned short Ogre::Renderable::getNumWorldTransforms ( void ) const [virtual, inherited]

Returns the number of world transform matrices this renderable requires.

Remarks:
When a renderable uses vertex blending, it uses multiple world matrices instead of a single one. Each vertex sent to the pipeline can reference one or more matrices in this list with given weights. If a renderable does not use vertex blending this method returns 1, which is the default for simplicity.

Reimplemented in Ogre::BorderRenderable, and Ogre::SubEntity.
Definition at line 104 of file OgreRenderable.h.

MaterialBucket* Ogre::StaticGeometry::GeometryBucket::getParent ( void )

Definition at line 216 of file OgreStaticGeometry.h.

virtual SceneDetailLevel Ogre::Renderable::getRenderDetail ( ) const [virtual, inherited]

Returns the preferred rasterisation mode of this renderable.

Reimplemented in Ogre::SubEntity.
Definition at line 135 of file OgreRenderable.h.
References Ogre::SceneDetailLevel, and Ogre::SDL_SOLID.

virtual bool Ogre::Renderable::getRenderDetailOverrideable ( void ) const [virtual, inherited]

Gets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.

Reimplemented in Ogre::BorderRenderable.
Definition at line 243 of file OgreRenderable.h.

void Ogre::StaticGeometry::GeometryBucket::getRenderOperation ( RenderOperation & op ) [virtual]

Gets the render operation required to send this object to the frame buffer.

Implements Ogre::Renderable.

Real Ogre::StaticGeometry::GeometryBucket::getSquaredViewDepth ( const Camera * cam ) const [virtual]

Returns the camera-relative squared depth of this renderable.

Remarks:
Used to sort transparent objects. Squared depth is used rather than actual depth to avoid having to perform a square root on the result.

Implements Ogre::Renderable.

Technique* Ogre::StaticGeometry::GeometryBucket::getTechnique ( void ) const [virtual]

Retrieves a pointer to the Material Technique this renderable object uses.

Remarks:
This is to allow Renderables to use a chosen Technique if they wish, otherwise they will use the best Technique available for the Material they are using.

Reimplemented from Ogre::Renderable.

const VertexData* Ogre::StaticGeometry::GeometryBucket::getVertexData ( void ) const

Get the vertex data for this geometry.

Definition at line 218 of file OgreStaticGeometry.h.

const Quaternion& Ogre::StaticGeometry::GeometryBucket::getWorldOrientation ( void ) const [virtual]

Gets the worldspace orientation of this renderable; this is used in order to more efficiently update parameters to vertex & fragment programs, since inverting Quaterion and Vector in order to derive object-space positions / directions for cameras and lights is much more efficient than inverting a complete 4x4 matrix, and also eliminates problems introduced by scaling.

Implements Ogre::Renderable.

const Vector3& Ogre::StaticGeometry::GeometryBucket::getWorldPosition ( void ) const [virtual]

Gets the worldspace orientation of this renderable; this is used in order to more efficiently update parameters to vertex & fragment programs, since inverting Quaterion and Vector in order to derive object-space positions / directions for cameras and lights is much more efficient than inverting a complete 4x4 matrix, and also eliminates problems introduced by scaling.

Implements Ogre::Renderable.

void Ogre::StaticGeometry::GeometryBucket::getWorldTransforms ( Matrix4 * xform ) const [virtual]

Gets the world transform matrix / matrices for this renderable object.

Remarks:
If the object has any derived transforms, these are expected to be up to date as long as all the SceneNode structures have been updated before this is called.

This method will populate xform with 1 matrix if it does not use vertex blending. If it does use vertex blending it will fill the passed in pointer with an array of matrices, the length being the value returned from getNumWorldTransforms.

Implements Ogre::Renderable.

void Ogre::Renderable::setCustomParameter ( size_t index,

const Vector4 & value

) [inherited]

Sets a custom parameter for this Renderable, which may be used to drive calculations for this specific Renderable, like GPU program parameters.

Remarks:
Calling this method simply associates a numeric index with a 4-dimensional value for this specific Renderable. This is most useful if the material which this Renderable uses a vertex or fragment program, and has an ACT_CUSTOM parameter entry. This parameter entry can refer to the index you specify as part of this call, thereby mapping a custom parameter for this renderable to a program parameter.

Parameters:

index The index with which to associate the value. Note that this does not have to start at 0, and can include gaps. It also has no direct correlation with a GPU program parameter index - the mapping between the two is performed by the ACT_CUSTOM entry, if that is used.

value The value to associate.

Definition at line 171 of file OgreRenderable.h.

virtual void Ogre::Renderable::setRenderDetailOverrideable ( bool override ) [virtual, inherited]

Sets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.

Parameters:

override true means that a lower camera detail will override this renderables detail level, false means it won't.

Definition at line 235 of file OgreRenderable.h.

virtual bool Ogre::Renderable::useIdentityProjection ( void ) const [virtual, inherited]

Returns whether or not to use an 'identity' projection.

Remarks:
Usually Renderable objects will use a projection matrix as determined by the active camera. However, if they want they can cancel this out and use an identity projection, which effectively projects in 2D using a {-1, 1} view space. Useful for overlay rendering. Normal renderables need not override this.

Reimplemented in Ogre::BorderRenderable, Ogre::OverlayElement, and Ogre::Rectangle2D.
Definition at line 114 of file OgreRenderable.h.

virtual bool Ogre::Renderable::useIdentityView ( void ) const [virtual, inherited]

Returns whether or not to use an 'identity' projection.

Remarks:
Usually Renderable objects will use a view matrix as determined by the active camera. However, if they want they can cancel this out and use an identity matrix, which means all geometry is assumed to be relative to camera space already. Useful for overlay rendering. Normal renderables need not override this.

Reimplemented in Ogre::BorderRenderable, Ogre::OverlayElement, and Ogre::Rectangle2D.
Definition at line 124 of file OgreRenderable.h.

Member Data Documentation

CustomParameterMap Ogre::Renderable::mCustomParameters [protected, inherited]

Definition at line 252 of file OgreRenderable.h.

String Ogre::StaticGeometry::GeometryBucket::mFormatString [protected]

String identifying the vertex / index format.

Definition at line 185 of file OgreStaticGeometry.h.

IndexData* Ogre::StaticGeometry::GeometryBucket::mIndexData [protected]

Index information, includes index type which limits the max number of vertices which are allowed in one bucket.

Definition at line 191 of file OgreStaticGeometry.h.

HardwareIndexBuffer::IndexType Ogre::StaticGeometry::GeometryBucket::mIndexType [protected]

Size of indexes.

Definition at line 193 of file OgreStaticGeometry.h.

size_t Ogre::StaticGeometry::GeometryBucket::mMaxVertexIndex [protected]

Maximum vertex indexable.

Definition at line 195 of file OgreStaticGeometry.h.

MaterialBucket* Ogre::StaticGeometry::GeometryBucket::mParent [protected]

Pointer to parent bucket.

Definition at line 183 of file OgreStaticGeometry.h.

QueuedGeometryList Ogre::StaticGeometry::GeometryBucket::mQueuedGeometry [protected]

Geometry which has been queued up pre-build (not for deallocation).

Definition at line 181 of file OgreStaticGeometry.h.

bool Ogre::Renderable::mRenderDetailOverrideable [protected, inherited]

Definition at line 253 of file OgreRenderable.h.

const PlaneList Ogre::Renderable::msDummyPlaneList [static, protected, inherited]

Definition at line 250 of file OgreRenderable.h.

VertexData* Ogre::StaticGeometry::GeometryBucket::mVertexData [protected]

Vertex information, includes current number of vertices committed to be a part of this bucket.

Definition at line 188 of file OgreStaticGeometry.h.

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

OgreStaticGeometry.h

Ogre::StaticGeometry::GeometryBucket Class Reference

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation