MPxSkinCluster Class Reference

#include <MPxSkinCluster.h>

Class Description

Base class for user-defined skin deformers.

MPxSkinCluster allows the creation of user-defined skin deformers. It derives from MPxGeometryFilter and so offers all the functionality of that class. Additionally, it has the per-vertex skin weights and other skin-related attributes of the Maya built-in skinCluster node.

Custom nodes derived from MPxSkinCluster are treated by Maya just like the built-in skinCluster, so all the weight painting/editing etc. tools that artists are used to also work on the custom nodes.

+ Examples:
+ Inheritance diagram for MPxSkinCluster:

Public Member Functions

 MPxSkinCluster ()
 Class constructor.
 
virtual ~MPxSkinCluster ()
 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 MObjectaccessoryAttribute () 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 MObject matrix
 matrix attribute, multi
 
static MObject bindPreMatrix
 bindPreMatrix 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::kSkinCluster.

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]blockthe datablock for the node
[in]multiIndexthe index corresponding to the geometry
[in]wtIndexthe index corresponding to the component
Returns
Weight
const char * className ( )
static

Returns the name of this class.

Returns
The name of this class.

The documentation for this class was generated from the following files:
  • MPxSkinCluster.h
  • MPxSkinCluster.cpp