#include <MFnRenderLayer.h>

Class Description

Function set for render layer.

Provide functionalities for working with render layers such as getting the objects present in the render layer or checking whether the given object is in the current layer.

Inheritance diagram for MFnRenderLayer:

Public Member Functions
virtual MFn::Type	type () const
	Function set type. More...

virtual	~MFnRenderLayer ()
	Destructor.

	MFnRenderLayer ()
	Default constructor.

	MFnRenderLayer (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

bool	inLayer (const MObject &transform, MStatus *ReturnStatus=NULL)
	Returns true if the given shape is in this layer. More...

MStatus	layerChildren (MObjectArray &children, bool recurse=false)
	Returns the container layers for this layer. More...

bool	inCurrentRenderLayer (const MDagPath &objectPath, MStatus *ReturnStatus=NULL)
	The function checks if the given object is present in the current render layer or not. More...

MStatus	listMembers (MObjectArray &objectsInLayer) const
	Returns the objects present in the render layer. More...

bool	isPlugAdjusted (const MPlug &scenePlug, MStatus *ReturnStatus=NULL) const
	The function checks if the specified plug is adjusted or not; returns true if the plug is adjusted, else returns false. More...

MPlug	adjustmentPlug (const MPlug &scenePlug, MStatus *ReturnStatus=NULL) const
	Returns the render layer adjustment value plug for the specified plug. More...

MStatus	externalRenderPasses (MObjectArray &renderPassArray) const
	The function builds an array of unique render pass nodes (MObject) that are connected to the renderPass attribute. More...

bool	passHasObject (const MObject &renderPass, const MDagPath &objectPath, MStatus *ReturnStatus=NULL) const
	Returns true if the specified object instance contributes to the given render pass, based on the pass contribution maps attached to the layer. More...

bool	passHasLight (const MObject &renderPass, const MObject &light, MStatus *ReturnStatus=NULL) const
	Returns true if the specified light contributes to the given render pass, based on the pass contribution maps attached to this layer. More...

	MFnRenderLayer (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnDependencyNode
virtual	~MFnDependencyNode ()
	Destructor.

	MFnDependencyNode ()
	Default constructor.

	MFnDependencyNode (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MObject	create (const MTypeId &typeId, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MTypeId &typeId, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type tag. More...

MObject	create (const MString &type, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MObject	create (const MString &type, const MString &name, MStatus *ReturnStatus=NULL)
	Creates a new dependency node with the given type. More...

MTypeId	typeId (MStatus *ReturnStatus=NULL) const
	Returns the type id of this node. More...

MString	typeName (MStatus *ReturnStatus=NULL) const
	Returns the type name of this node. More...

MString	name (MStatus *ReturnStatus=NULL) const
	Returns the name of this node. More...

MString	absoluteName (MStatus *ReturnStatus=NULL) const
	Returns the absolute name of this node. More...

MString	pluginName (MStatus *ReturnStatus=NULL) const
	Returns the name of the plug-in this MFnDependendencyNode was defined in. More...

MString	setName (const MString &name, bool createNamespace=false, MStatus *ReturnStatus=NULL)
	Sets the name of this node. More...

MUuid	uuid (MStatus *ReturnStatus=NULL) const
	Returns the node's UUID. More...

void	setUuid (const MUuid &uuid, MStatus *ReturnStatus=NULL)
	Sets the node's UUID. More...

MStatus	getConnections (MPlugArray &array) const
	Get all of the current connections to this node as an array of plugs. More...

unsigned int	attributeCount (MStatus *ReturnStatus=NULL) const
	Returns the number of attributes that this node has. More...

MObject	attribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node at the given index. More...

MObject	reorderedAttribute (unsigned int index, MStatus *ReturnStatus=NULL) const
	Some nodes, such as the various animCurve nodes, require that their attributes be set in a specific order for proper operation. More...

MObject	attribute (const MString &attrName, MStatus *ReturnStatus=NULL) const
	Finds the attribute of this node that has the given name. More...

MAttrClass	attributeClass (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Returns the class (normal, dynamic, extension) of the specified attribute. More...

MStatus	getAffectedAttributes (const MObject &attr, MObjectArray &affectedAttributes) const
	Returns an array of attributes that are affected by the attribute passed in. More...

MStatus	getAffectedByAttributes (const MObject &attr, MObjectArray &affectedByAttributes) const
	Returns an array of attributes that affect the attribute passed in, attr. More...

MPlug	findPlug (const MObject &attr, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MString &attrName, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
	Attempt to find a plug for the given attribute. More...

MPlug	findPlug (const MObject &attr, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MPlug	findPlug (const MString &attrName, MStatus *ReturnStatus=NULL) const
	This method is obsolete. More...

MStatus	addAttribute (const MObject &attr)
	Add a new dynamic attibute to this node. More...

MStatus	removeAttribute (const MObject &attr)
	Remove a dynamic attribute from a node. More...

MPxNode *	userNode (MStatus *ReturnStatus=NULL) const
	If the function set's node is a plug-in node, then this method will extract the MPxNode pointer from it. More...

bool	isFromReferencedFile (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node came from a referenced file. More...

bool	isShared (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is shared. More...

bool	isTrackingEdits (MStatus *ReturnStatus=NULL) const
	Returns whether or not edits on the given node are being tracked by the generalized edit system. More...

bool	hasUniqueName (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node's name is unique within the scene. More...

MString	parentNamespace (MStatus *ReturnStatus=NULL) const
	Returns the name of the namespace in which this node resides. More...

bool	isLocked (MStatus *ReturnStatus=NULL) const
	Indicates whether or not this node is locked. More...

MStatus	setLocked (bool locked)
	Locks or unlocks this node. More...

bool	isNewAttribute (const MObject &attr, MStatus *ReturnStatus=NULL) const
	Indicates whether or not the specified attribute was added to this node within the current scene. More...

MStatus	setFlag (unsigned int flag, bool state)
	Sets the state of the specified flag for the node. More...

bool	isFlagSet (unsigned int flag, MStatus *ReturnStatus=NULL) const
	Retrieves the current state of the specified flag for a node. More...

bool	isDefaultNode (MStatus *ReturnStatus=NULL) const
	Returns true if the node is a default node. More...

MStatus	setDoNotWrite (bool flag)
	Use this method to mark the "do not write" state of this node. More...

bool	canBeWritten (MStatus *ReturnStatus=NULL) const
	Returns the do not write state of the node. More...

bool	hasAttribute (const MString &name, MStatus *ReturnStatus=NULL) const
	Returns true if the node already has an attribute with the given name. More...

MObject	getAliasAttr (bool force, MStatus *ReturnStatus=NULL)
	Returns the node's alias attribute, which is a special attribute used to store information about the node's attribute aliases. More...

bool	setAlias (const MString &alias, const MString &name, const MPlug &plug, bool add=true, MStatus *ReturnStatus=NULL)
	Sets or removes an alias (i.e. More...

bool	findAlias (const MString &alias, MObject &attrObj, MStatus *ReturnStatus=NULL) const
	Retrieves the attribute with the given alias. More...

bool	getAliasList (MStringArray &strArray, MStatus *ReturnStatus=NULL)
	Returns a list of all attribute aliases for this node. More...

MString	plugsAlias (const MPlug &plug, MStatus *ReturnStatus=NULL)
	Returns the alias for the plug's attribute or the empty string if that attribute has no alias. More...

MStatus	setIcon (const MString &filename)
	Associates a custom icon with the node for display in the Maya UI. More...

MString	icon (MStatus *ReturnStatus=NULL) const
	Returns the custom icon filename associated with the node. More...

MStatus	getExternalContent (MExternalContentInfoTable &table) const
	Returns the external content (files) that this node depends on. More...

MStatus	addExternalContentForFileAttr (MExternalContentInfoTable &table, const MObject &attr) const
	Adds content info to the specified table from a file path attribute. More...

MStatus	setExternalContentForFileAttr (const MObject &attr, const MExternalContentLocationTable &table)
	Sets content info in the specified attribute from the table. More...

MStatus	setExternalContent (const MExternalContentLocationTable &table)
	Changes the location of external content. More...

MString	setName (const MString &name, MStatus *ReturnStatus)
	OBSOLETE FUNCTION, NO SCRIPT SUPPORT. More...

	MFnDependencyNode (const MObject &object, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

bool	getPlugsAlias (const MPlug &plug, MString &aliasName, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT. More...

virtual const adsk::Data::Associations *	metadata (MStatus *ReturnStatus=NULL) const
	This method is not available in Python. More...

virtual MStatus	setMetadata (const adsk::Data::Associations &)
	This method is not available in Python. More...

virtual MStatus	deleteMetadata ()
	This method is not available in Python. More...

virtual MStatus	validateMetadata (MString &errors) const
	This method is not available in Python. More...

MStatus	dgTimerOn ()
	Indicates that this node should collect DG timing data whenever DG timing is enabled. More...

MStatus	dgTimerOff ()
	Indicates that this node should no longer collect DG timing data when DG timing is enabled. More...

MdgTimerState	dgTimerQueryState (MStatus *ReturnStatus=NULL)
	The function returns the current on/off state of the node's timer. More...

MStatus	dgTimerReset ()
	The function resets the dependency graph timers and counters for this node to zero. More...

double	dgTimer (const MdgTimerMetric timerMetric, const MdgTimerType timerType, MStatus *ReturnStatus=NULL) const
	The function returns the specified timer value for the current node. More...

MStatus	dgCallbacks (const MdgTimerType type, MStringArray &callbackName, MDoubleArray &value)
	Node callbacks that occur when timing is enabled get logged with the node and can be queried via this method. More...

MStatus	dgCallbackIds (const MdgTimerType type, const MString &callbackName, MCallbackIdArray &callbackId, MDoubleArray &value)
	This method provides a further breakdown of the per-callback time returned via dgCallbacks() by returning the data on a per-callbackId basis. More...

MStatus	addAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

MStatus	removeAttribute (const MObject &attr, MAttrClass type)
	This method is obsolete. More...

Public Member Functions inherited from MFnBase
virtual	~MFnBase ()
	Class Destructor. More...

bool	hasObj (MFn::Type) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

bool	hasObj (const MObject &) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

MObject	object (MStatus *ReturnStatus=NULL) const
	Returns the MObject that is attached to the Function Set. More...

virtual MStatus	setObject (MObject &object)
	Attaches the Function Set to the specified Maya Object. More...

virtual MStatus	setObject (const MObject &object)
	NO SCRIPT SUPPORT. More...

Static Public Member Functions
static MObject	findLayerByName (const MString &renderLayer, MStatus *ReturnStatus=NULL)
	This function returns an MObject to a render layer that matches the specified name. More...

static MObject	defaultRenderLayer (MStatus *ReturnStatus=NULL)
	Returns the MObject for the defaultRenderLayer. More...

static MStatus	listAllRenderLayers (MObjectArray &rl)
	Returns the list of render layers currently in the system. More...

static MObject	currentLayer (MStatus *ReturnStatus=NULL)
	Returns the MObject for the current render layer. More...

Static Public Member Functions inherited from MFnDependencyNode
static MString	classification (const MString &nodeTypeName)
	Retrieves the classification string for a node type. More...

static unsigned int	allocateFlag (const MString pluginName, MStatus *ReturnStatus=NULL)
	Allocates a node flag for sole use by the caller. More...

static MStatus	deallocateFlag (const MString pluginName, unsigned int flag)
	Deallocates a node flag which was previously allocated by a call to allocateFlag. More...

static MStatus	deallocateAllFlags (const MString pluginName)
	Deallocates all of the node flags which are currently allocated to the specified plugin. More...

static void	enableDGTiming (bool enable)
	Globally enables or disables the DG node timing mechanism. More...

Static Public Member Functions inherited from MFnBase
static const char *	className ()
	Returns the name of this class. More...

Protected Member Functions
virtual const char *	className () const
	Class name. More...

Additional Inherited Members
Public Types inherited from MFnDependencyNode
enum	MAttrClass { kLocalDynamicAttr = 1, kNormalAttr, kExtensionAttr, kInvalidAttr }
	Specifies the scope of the attribute. More...

enum	MdgTimerState { kTimerOff, kTimerOn, kTimerUninitialized, kTimerInvalidState }
	Possible states for the node's timer. More...

enum	MdgTimerMetric { kTimerMetric_callback, kTimerMetric_compute, kTimerMetric_dirty, kTimerMetric_draw, kTimerMetric_fetch, kTimerMetric_callbackViaAPI, kTimerMetric_callbackNotViaAPI, kTimerMetric_computeDuringCallback, kTimerMetric_computeNotDuringCallback, kTimerMetrics }
	The different timer metrics which can be queried. More...

enum	MdgTimerType { kTimerType_self, kTimerType_inclusive, kTimerType_count, kTimerTypes }
	The types of timers which can be queried. More...

Constructor & Destructor Documentation

MFnRenderLayer	(	MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

MFnRenderLayer	(	const MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

Member Function Documentation

MFn::Type type ( ) const

virtual

Function set type.

Return the class type : MFn::kRenderLayer.

Reimplemented from MFnDependencyNode.

const char * className ( ) const

protectedvirtual

Class name.

Return the class name : "MFnRenderLayer".

Reimplemented from MFnDependencyNode.

bool inLayer	(	const MObject &	transform,
		MStatus *	ReturnStatus = `NULL`
	)

Returns true if the given shape is in this layer.

This method will check all container layers for transform containment. The MObject specified must be a shape node.

Parameters

[in]	transform	MObject of the shape we are testing against.
[out]	ReturnStatus	Return code.

Returns: True if the given node is in the layer, false otherwise.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus layerChildren	(	MObjectArray &	array,
		bool	recurse = `false`
	)

Returns the container layers for this layer.

Container layers provide the ability for a given render layer to "contain" other render layers.

Parameters

[in]	array	List of contained render layers.
[in]	recurse	If true then the list operation will be applied recursively to any contained render layers which themselves contain other render layers.

Returns: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool inCurrentRenderLayer	(	const MDagPath &	objectPath,
		MStatus *	ReturnStatus = `NULL`
	)

The function checks if the given object is present in the current render layer or not.

Parameters

[in]	objectPath	Path of the render layer object.
[out]	ReturnStatus	Status code.

Returns: True if the given object is in the current render layer, false otherwise.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus listMembers ( MObjectArray & objectsInLayer ) const

Returns the objects present in the render layer.

Parameters

[in] objectsInLayer The array of MObjects, present in the layer.

Returns: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool isPlugAdjusted	(	const MPlug &	scenePlug,
		MStatus *	retStatus = `NULL`
	)		const

The function checks if the specified plug is adjusted or not; returns true if the plug is adjusted, else returns false.

Parameters

[in]	scenePlug	The plug which needs to be checked for adjustment.
[out]	retStatus	MStatus object returning the status.

Returns: True if the plug is adjusted, false otherwise.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MPlug adjustmentPlug	(	const MPlug &	scenePlug,
		MStatus *	retStatus = `NULL`
	)		const

Returns the render layer adjustment value plug for the specified plug.

If there is no layer override on the plug, a copy of scenePlug is returned.

Parameters

[in]	scenePlug	The plug for which the adjustment is sought.
[out]	retStatus	MStatus object returning the status.

Returns: The render layer adjustment plug.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus externalRenderPasses ( MObjectArray & renderPassArray ) const

The function builds an array of unique render pass nodes (MObject) that are connected to the renderPass attribute.

This function descends recursively into render pass sets to collect all connected render passes.

Parameters

[out] renderPassArray Array to which the result of the search is written.

Returns: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool passHasObject	(	const MObject &	renderPass,
		const MDagPath &	objectInstance,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns true if the specified object instance contributes to the given render pass, based on the pass contribution maps attached to the layer.

This method does not verify whether the object instance or the renderPass are actually rendered by the layer.

Parameters

[in]	renderPass	a render pass node
[in]	objectInstance	DAG path of a shape instance
[out]	ReturnStatus	status of the method call.

Returns: True if the object contributes to the pass, false otherwise.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

bool passHasLight	(	const MObject &	renderPass,
		const MObject &	light,
		MStatus *	ReturnStatus = `NULL`
	)		const

Returns true if the specified light contributes to the given render pass, based on the pass contribution maps attached to this layer.

This method does not verify whether the light or the renderPass are actually rendered by the layer.

Parameters

[in]	renderPass	a render pass node
[in]	light	a light shape node
[out]	ReturnStatus	status of the method call.

Returns: True if the light contributes to the pass, false otherwise.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MObject findLayerByName	(	const MString &	renderLayer,
		MStatus *	ReturnStatus = `NULL`
	)

static

This function returns an MObject to a render layer that matches the specified name.

If no render layer is found with the given name, MObject::kNullObj is returned.

Parameters

[in]	renderLayer	The name of the render layer.
[out]	ReturnStatus	status of the method call.

Returns: The matching render layer or MObject::kNullObj if no matching render layer was found.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MObject defaultRenderLayer ( MStatus * ReturnStatus = NULL )

static

Returns the MObject for the defaultRenderLayer.

This MObject can be used in MFnRenderLayer.

Parameters

[out] ReturnStatus status of the method call.

Returns: The default render layer.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MStatus listAllRenderLayers ( MObjectArray & array )

static

Returns the list of render layers currently in the system.

Parameters

[in] array MObjectArray of render layers.

Returns: Status code

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

MObject currentLayer ( MStatus * ReturnStatus = NULL )

static

Returns the MObject for the current render layer.

This MObject can be used in MFnRenderLayer.

Parameters

[out] ReturnStatus status of the method call.

Returns: The current render layer.

Status Codes:

MS::kSuccess The method was successful.
MS::kFailure An object error has occurred.

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

MFnRenderLayer.h
MFnRenderLayer.cpp

MFnRenderLayer Class Reference

Class Description

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation