MPxDeformerNode Class Reference

#include <MPxDeformerNode.h>

Class Description

Base class for user defined deformers with per-vertex weights.

MPxDeformerNode builds on MPxGeometryFilter to allow the creation of deformers with per-vertex weights. Built-in Maya nodes which work in this way include the jiggle and cluster deformers.

The weight values can be modified by the user using the set editing window or the percent command.

Examples:

Inheritance diagram for MPxDeformerNode:

Public Member Functions
	MPxDeformerNode ()
	Class constructor.
virtual	~MPxDeformerNode ()
	Class destructor.
virtual MPxNode::Type	type () const
	This method returns the type of the node. More...
float	weightValue (MDataBlock &mblock, unsigned int multiIndex, unsigned int wtIndex)
	This method returns the weightValue stored in the datablock for the given geometry's lattice point/CV/vertex. More...
Public Member Functions inherited from MPxGeometryFilter
	MPxGeometryFilter ()
	Class constructor.
virtual	~MPxGeometryFilter ()
	Class destructor.
virtual MStatus	deform (MDataBlock &block, MItGeometry &iter, const MMatrix &mat, unsigned int multiIndex)
	This method performs the deformation algorithm. More...
virtual MObject &	accessoryAttribute () const
	This method returns an MObject for the attribute to which an accessory shape is connected. More...
virtual MStatus	accessoryNodeSetup (MDagModifier &cmd)
	This method is called by the "deformer -type" command when your node is specified. More...
void	setUseExistingConnectionWhenSetEditing (bool state)
	This method allows the plugin node to request special treatment during set editing. More...
MStatus	setDeformationDetails (unsigned int flags)
	This method allows the plug-in node to inform the system that it intends to deform components other than just positions. More...
unsigned int	getDeformationDetails (MStatus *ReturnStatus=NULL)
	Retrieves the value set by setDeformationDetails(). More...
virtual void	setModifiedCallback (MSelectionList &list, bool listAdded)
	This callback method can be overriden and is called whenever the set this deformer is operating on is modified. More...
Public Member Functions inherited from MPxNode
	MPxNode ()
	Constructor. More...
virtual	~MPxNode ()
	Destructor.
virtual void	postConstructor ()
	Post constructor. More...
virtual MStatus	compute (const MPlug &, MDataBlock &)
	This method should be overridden in user defined nodes. More...
virtual bool	getInternalValue (const MPlug &, MDataHandle &)
	This method is overridden by nodes that store attribute data in some internal format. More...
virtual bool	setInternalValue (const MPlug &, const MDataHandle &)
	This method is overridden by nodes that store attribute data in some internal format. More...
virtual int	internalArrayCount (const MPlug &) const
	This method is overridden by nodes that have internal array attributes which are not stored in Maya's datablock. More...
virtual void	copyInternalData (MPxNode *)
	This method is overridden by nodes that store attribute data in some internal format. More...
virtual MStatus	legalConnection (const MPlug &, const MPlug &, bool asSrc, bool &isLegal) const
	This method allows you to check for legal connections being made to attributes of this node. More...
virtual MStatus	legalDisconnection (const MPlug &, const MPlug &, bool asSrc, bool &isLegal) const
	This method allows you to check for legal disconnections being made to attributes of this node. More...
virtual MStatus	setDependentsDirty (const MPlug &plug, MPlugArray &plugArray)
	This method can be overridden in user defined nodes to specify which plugs should be set dirty based upon an input plug {plugBeingDirtied} which Maya is marking dirty. More...
virtual MStatus	preEvaluation (const MDGContext &context, const MEvaluationNode &evaluationNode)
	Prepare a node's internal state for threaded evaluation. More...
virtual MStatus	postEvaluation (const MDGContext &context, const MEvaluationNode &evaluationNode, PostEvaluationType evalType)
	Clean up node's internal state after threaded evaluation. More...
virtual SchedulingType	schedulingType () const
	When overridden this method controls the degree of parallelism supported by the node during threaded evaluation. More...
virtual MStatus	connectionMade (const MPlug &, const MPlug &, bool asSrc)
	This method gets called when connections are made to attributes of this node. More...
virtual MStatus	connectionBroken (const MPlug &, const MPlug &, bool asSrc)
	This method gets called when connections are broken with attributes of this node. More...
virtual MStatus	dependsOn (const MPlug &, const MPlug &, bool &depends) const
	This method may be overridden by the user defined node. More...
virtual bool	isPassiveOutput (const MPlug &) const
	This method may be overridden by the user defined node if it wants to provide output attributes which do not prevent value modifications to the destination attribute. More...
virtual MStatus	shouldSave (const MPlug &, bool &isSaving)
	This method may be overridden by the user defined node. More...
virtual MPlug	passThroughToOne (const MPlug &) const
	This method may be overridden by nodes that have a one-to-one relationship between an input attribute and a corresponding output attribute. More...
virtual bool	passThroughToMany (const MPlug &, MPlugArray &) const
	This method is overridden by nodes that want to control the traversal behavior of some Maya search algorithms which traverse the history/future of shape nodes looking for directly related nodes. More...
virtual bool	isAbstractClass () const
	Override this class to return true if this node is an abstract node. More...
virtual MStringArray	getFilesToArchive (bool shortName=false, bool unresolvedName=false, bool markCouldBeImageSequence=false) const
	Use this method to return all external files used by this node. More...
virtual void	getExternalContent (MExternalContentInfoTable &table) const
	Returns the external content (files) that this node depends on. More...
bool	addExternalContentForFileAttr (MExternalContentInfoTable &, const MObject &attr) const
	Adds content info to the specified table from a file path attribute. More...
bool	setExternalContentForFileAttr (const MObject &attr, const MExternalContentLocationTable &)
	Sets content info in the specified attribute from the table. More...
virtual void	setExternalContent (const MExternalContentLocationTable &)
	Changes the location of external content in batch. More...
virtual MTypeId	typeId () const
	Returns the TYPEID of this node. More...
virtual MString	typeName () const
	Returns the type name of this node. More...
virtual MString	name () const
	Returns the name of this particular instance of this class. More...
virtual MObject	thisMObject () const
	Returns the MObject associated with this user defined node. More...
virtual MStatus	setExistWithoutInConnections (bool flag)
	This method specifies whether or not the node can exist without input connections. More...
virtual bool	existWithoutInConnections (MStatus *ReturnStatus=NULL) const
	Determines whether or not this node can exist without input connections. More...
virtual MStatus	setExistWithoutOutConnections (bool flag)
	This method specifies whether or not the node can exist without output connections. More...
virtual bool	existWithoutOutConnections (MStatus *ReturnStatus=NULL) const
	Determines whether or not this node can exist without output connections. More...
MDataBlock	_forceCache (const MDGContext &)
	This method is obsolete. More...
virtual bool	getInternalValueInContext (const MPlug &, MDataHandle &, MDGContext &)
	This method is obsolete. More...
virtual bool	setInternalValueInContext (const MPlug &, const MDataHandle &, MDGContext &)
	This method is obsolete. More...
virtual int	internalArrayCount (const MPlug &, const MDGContext &) const
	This method is obsolete. More...

Static Public Member Functions
static const char *	className ()
	Returns the name of this class. More...
Static Public Member Functions inherited from MPxGeometryFilter
static const char *	className ()
	Returns the name of this class. More...
Static Public Member Functions inherited from MPxNode
static MStatus	addAttribute (const MObject &attr)
	This method adds a new attribute to a user defined node type during the type's initialization. More...
static MStatus	inheritAttributesFrom (const MString &parentClassName)
	This method allows a class of plugin node to inherit all of the attributes of a second class of plugin node. More...
static MStatus	attributeAffects (const MObject &whenChanges, const MObject &isAffected)
	This method specifies that a particular input attribute affects a specific output attribute. More...
static const char *	className ()
	Returns the name of this class. More...

Static Public Attributes
static MObject	weightList
	weight list attribute, multi
static MObject	weights
	weight attribute, multi
Static Public Attributes inherited from MPxGeometryFilter
static MObject	input
	input attribute, multi
static MObject	inputGeom
	input geometry attribute
static MObject	groupId
	input group id attribute
static MObject	outputGeom
	geometry output attribute
static MObject	envelope
	envelope attribute
Static Public Attributes inherited from MPxNode
static MObject	message
	message attribute
static MObject	isHistoricallyInteresting
	is historically interesting attribute
static MObject	caching
	caching attribute
static MObject	state
	state attribute
static MObject	frozen
	frozen attribute

Additional Inherited Members
Public Types inherited from MPxGeometryFilter
enum	DeformationDetails { kDeformsUVs = (1<<1), kDeformsColors = (1<<2) }
	Deformation details. More...
Public Types inherited from MPxNode
enum	Type {   kDependNode, kLocatorNode, kDeformerNode, kManipContainer,   kSurfaceShape, kFieldNode, kEmitterNode, kSpringNode,   kIkSolverNode, kHardwareShader, kHwShaderNode, kTransformNode,   kObjectSet, kFluidEmitterNode, kImagePlaneNode, kParticleAttributeMapperNode,   kCameraSetNode, kConstraintNode, kManipulatorNode, kMotionPathNode,   kClientDeviceNode, kThreadedDeviceNode, kAssembly, kSkinCluster,   kGeometryFilter, kBlendShape, kLast }
	Defines the type of node. More...
enum	SchedulingType {   kParallel, kSerial, kGloballySerial, kUntrusted ,   kDefaultScheduling = kSerial, kSerialize = kSerial, kGloballySerialize = kGloballySerial }
	Defines the degree of parallelism of a node. More...
Protected Member Functions inherited from MPxNode
virtual MDataBlock	forceCache ()
	USE _forceCache() IN SCRIPT. More...
virtual void	setMPSafe (bool flag)
	USE _setMPSafe() IN SCRIPT. More...
virtual MStatus	setDoNotWrite (bool flag)
	USE _setDoNotWrite() IN SCRIPT. More...
virtual bool	doNotWrite (MStatus *ReturnStatus=NULL) const
	USE _doNotWrite() IN SCRIPT. More...
virtual MDataBlock	forceCache (const MDGContext &)
	This method is obsolete. More...

Member Function Documentation

MPxNode::Type type ( ) const

virtual

This method returns the type of the node.

This method should not be overridden by the user. It will return MPxNode::kDeformerNode.

Returns

The type of node

Reimplemented from MPxGeometryFilter.

float weightValue	(	MDataBlock &	block,
		unsigned int	multiIndex,
		unsigned int	wtIndex
	)

This method returns the weightValue stored in the datablock for the given geometry's lattice point/CV/vertex.

Parameters

[in]	block	the datablock for the node
[in]	multiIndex	the index corresponding to the geometry
[in]	wtIndex	the index corresponding to the component

Returns

Weight

const char * className ( )

static

Returns the name of this class.

Returns

The name of this class.

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

• MPxDeformerNode.h
• MPxDeformerNode.cpp