OGRE  1.10.12
Object-Oriented Graphics Rendering Engine
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:

Public Types

typedef SharedPtr< RenderSystemDataRenderSystemDataPtr
 

Public Member Functions

 GeometryBucket (MaterialBucket *parent, const String &formatString, const VertexData *vData, const IndexData *iData)
 
virtual ~GeometryBucket ()
 
virtual void _updateCustomGpuParameter (const GpuProgramParameters::AutoConstantEntry &constantEntry, GpuProgramParameters *params) const
 Update a custom GpuProgramParameters constant which is derived from information only this Renderable knows. More...
 
bool assign (QueuedGeometry *qsm)
 Try to assign geometry to this bucket. More...
 
void build (bool stencilShadows)
 Build. More...
 
void dump (std::ofstream &of) const
 Dump contents for diagnostics. More...
 
bool getCastsShadows (void) const
 Method which reports whether this renderable would normally cast a shadow. More...
 
const Vector4getCustomParameter (size_t index) const
 Gets the custom value associated with this Renderable at the given index. More...
 
const IndexDatagetIndexData (void) const
 Get the index data for this geometry. More...
 
const LightListgetLights (void) const
 Gets a list of lights, ordered relative to how close they are to this renderable. More...
 
const MaterialPtrgetMaterial (void) const
 Retrieves a weak reference to the material this renderable object uses. More...
 
virtual unsigned short getNumWorldTransforms (void) const
 Returns the number of world transform matrices this renderable requires. More...
 
MaterialBucketgetParent (void)
 
bool getPolygonModeOverrideable (void) const
 Gets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting. More...
 
void getRenderOperation (RenderOperation &op)
 Gets the render operation required to send this object to the frame buffer. More...
 
const RenderSystemDataPtrgetRenderSystemData () const
 Gets RenderSystem private data. More...
 
Real getSquaredViewDepth (const Camera *cam) const
 Returns the camera-relative squared depth of this renderable. More...
 
TechniquegetTechnique (void) const
 Retrieves a pointer to the Material Technique this renderable object uses. More...
 
bool getUseIdentityProjection (void) const
 Returns whether or not to use an 'identity' projection. More...
 
bool getUseIdentityView (void) const
 Returns whether or not to use an 'identity' view. More...
 
const AnygetUserAny (void) const
 
UserObjectBindingsgetUserObjectBindings ()
 Return an instance of user objects binding associated with this class. More...
 
const UserObjectBindingsgetUserObjectBindings () const
 Return an instance of user objects binding associated with this class. More...
 
const VertexDatagetVertexData (void) const
 Get the vertex data for this geometry. More...
 
void getWorldTransforms (Matrix4 *xform) const
 Gets the world transform matrix / matrices for this renderable object. More...
 
bool hasCustomParameter (size_t index) const
 Checks whether a custom value is associated with this Renderable at the given index. More...
 
virtual void postRender (SceneManager *sm, RenderSystem *rsys)
 Called immediately after the Renderable has been rendered. More...
 
virtual bool preRender (SceneManager *sm, RenderSystem *rsys)
 Called just prior to the Renderable being rendered. More...
 
void removeCustomParameter (size_t index)
 Removes a custom value which is associated with this Renderable at the given index. More...
 
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. More...
 
void setPolygonModeOverrideable (bool override)
 Sets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting. More...
 
void setRenderSystemData (RenderSystemDataPtr val) const
 Sets RenderSystem private data. More...
 
void setUseIdentityProjection (bool useIdentityProjection)
 Sets whether or not to use an 'identity' projection. More...
 
void setUseIdentityView (bool useIdentityView)
 Sets whether or not to use an 'identity' view. More...
 
void setUserAny (const Any &anything)
 

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.

Member Typedef Documentation

◆ RenderSystemDataPtr

Constructor & Destructor Documentation

◆ GeometryBucket()

Ogre::StaticGeometry::GeometryBucket::GeometryBucket ( MaterialBucket parent,
const String formatString,
const VertexData vData,
const IndexData iData 
)

◆ ~GeometryBucket()

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

Member Function Documentation

◆ getParent()

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

◆ getVertexData()

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

Get the vertex data for this geometry.

◆ getIndexData()

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

Get the index data for this geometry.

◆ getMaterial()

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

Retrieves a weak reference to the material this renderable object uses.

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.

◆ getTechnique()

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.

◆ getRenderOperation()

void Ogre::StaticGeometry::GeometryBucket::getRenderOperation ( RenderOperation op)
virtual

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

Implements Ogre::Renderable.

◆ getWorldTransforms()

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 transform 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.
Note
Internal Ogre never supports non-affine matrix for world transform matrix/matrices, the behavior is undefined if returns non-affine matrix here.
See also
Matrix4::isAffine.

Implements Ogre::Renderable.

◆ getSquaredViewDepth()

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.

◆ getLights()

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.

◆ getCastsShadows()

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.

◆ assign()

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

◆ build()

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

Build.

◆ dump()

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

Dump contents for diagnostics.

◆ preRender()

virtual bool Ogre::Renderable::preRender ( SceneManager sm,
RenderSystem rsys 
)
inlinevirtualinherited

Called just prior to the Renderable being rendered.

Remarks
OGRE is a queued renderer, so the actual render commands are executed at a later time than the point at which an object is discovered to be visible. This allows ordering & grouping of renders without the discovery process having to be aware of it. It also means OGRE uses declarative render information rather than immediate mode rendering - this is very useful in that certain effects and processes can automatically be applied to a wide range of scenes, but the downside is that special cases are more difficult to handle, because there is not the declared state to cope with it.
This method allows a Renderable to do something special at the actual point of rendering if it wishes to. When this method is called, all the material render state as declared by this Renderable has already been set, all that is left to do is to bind the buffers and perform the render. The Renderable may modify render state itself if it wants to (and restore it in the postRender call) before the automated render happens, or by returning 'false' from this method can actually suppress the automatic render and perform one of its own.
Returns
true if the automatic render should proceed, false to skip it on the assumption that the Renderable has done it manually.

Reimplemented in Ogre::BillboardChain.

◆ postRender()

virtual void Ogre::Renderable::postRender ( SceneManager sm,
RenderSystem rsys 
)
inlinevirtualinherited

Called immediately after the Renderable has been rendered.

◆ getNumWorldTransforms()

virtual unsigned short Ogre::Renderable::getNumWorldTransforms ( void  ) const
inlinevirtualinherited

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, Ogre::SubEntity, Ogre::InstancedGeometry::GeometryBucket, Ogre::BaseInstanceBatchVTF, Ogre::InstanceBatchHW, and Ogre::InstanceBatchShader.

◆ setUseIdentityProjection()

void Ogre::Renderable::setUseIdentityProjection ( bool  useIdentityProjection)
inlineinherited

Sets 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 change this. The default is false.
See also
Renderable::getUseIdentityProjection

◆ getUseIdentityProjection()

bool Ogre::Renderable::getUseIdentityProjection ( void  ) const
inlineinherited

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 change this.
See also
Renderable::setUseIdentityProjection

◆ setUseIdentityView()

void Ogre::Renderable::setUseIdentityView ( bool  useIdentityView)
inlineinherited

Sets whether or not to use an 'identity' view.

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 change this. The default is false.
See also
Renderable::getUseIdentityView

◆ getUseIdentityView()

bool Ogre::Renderable::getUseIdentityView ( void  ) const
inlineinherited

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

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 change this.
See also
Renderable::setUseIdentityView

◆ setCustomParameter()

void Ogre::Renderable::setCustomParameter ( size_t  index,
const Vector4 value 
)
inlineinherited

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
indexThe 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.
valueThe value to associate.

◆ removeCustomParameter()

void Ogre::Renderable::removeCustomParameter ( size_t  index)
inlineinherited

Removes a custom value which is associated with this Renderable at the given index.

Parameters
indexIndex of the parameter to remove.
See also
setCustomParameter for full details.

◆ hasCustomParameter()

bool Ogre::Renderable::hasCustomParameter ( size_t  index) const
inlineinherited

Checks whether a custom value is associated with this Renderable at the given index.

Parameters
indexIndex of the parameter to check for existence.
See also
setCustomParameter for full details.

◆ getCustomParameter()

const Vector4& Ogre::Renderable::getCustomParameter ( size_t  index) const
inlineinherited

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

Parameters
indexIndex of the parameter to retrieve.
See also
setCustomParameter for full details.

References Ogre::Exception::ERR_ITEM_NOT_FOUND, and OGRE_EXCEPT.

◆ _updateCustomGpuParameter()

virtual void Ogre::Renderable::_updateCustomGpuParameter ( const GpuProgramParameters::AutoConstantEntry constantEntry,
GpuProgramParameters params 
) const
inlinevirtualinherited

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
constantEntryThe auto constant entry referring to the parameter being updated
paramsThe parameters object which this method should call to set the updated parameters.

Reimplemented in Ogre::SubEntity.

References Ogre::GpuProgramParameters::_writeRawConstant(), Ogre::GpuProgramParameters::AutoConstantEntry::data, Ogre::GpuProgramParameters::AutoConstantEntry::elementCount, and Ogre::GpuProgramParameters::AutoConstantEntry::physicalIndex.

◆ setPolygonModeOverrideable()

void Ogre::Renderable::setPolygonModeOverrideable ( bool  override)
inlineinherited

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

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

◆ getPolygonModeOverrideable()

bool Ogre::Renderable::getPolygonModeOverrideable ( void  ) const
inlineinherited

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

Referenced by Ogre::BorderRenderable::getPolygonModeOverrideable().

◆ setUserAny()

void Ogre::Renderable::setUserAny ( const Any anything)
inlineinherited
Deprecated:
use UserObjectBindings::setUserAny via getUserObjectBindings() instead.

Sets any kind of user value on this object.

Remarks
This method allows you to associate any user value you like with this Renderable. This can be a pointer back to one of your own classes for instance.

Referenced by Ogre::InstanceBatch::getRenderOperation().

◆ getUserAny()

const Any& Ogre::Renderable::getUserAny ( void  ) const
inlineinherited
Deprecated:
use UserObjectBindings::getUserAny via getUserObjectBindings() instead.

Retrieves the custom user value associated with this object.

Referenced by Ogre::InstanceBatch::getRenderOperation().

◆ getUserObjectBindings() [1/2]

UserObjectBindings& Ogre::Renderable::getUserObjectBindings ( )
inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also
UserObjectBindings::setUserAny.

◆ getUserObjectBindings() [2/2]

const UserObjectBindings& Ogre::Renderable::getUserObjectBindings ( ) const
inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also
UserObjectBindings::setUserAny.

◆ getRenderSystemData()

const RenderSystemDataPtr& Ogre::Renderable::getRenderSystemData ( ) const
inlineinherited

Gets RenderSystem private data.

Remarks
This should only be used by a RenderSystem

◆ setRenderSystemData()

void Ogre::Renderable::setRenderSystemData ( RenderSystemDataPtr  val) const
inlineinherited

Sets RenderSystem private data.

Remarks
This should only be used by a RenderSystem

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