MFnDirectionalLight Class Reference

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Detailed Description

Manage Directional Light dependency nodes.

MFnDirectionalLight facilitates creation and manipulation of dependency nodes representing direction lights.

#include <MFnDirectionalLight.h>

Inheritance diagram for MFnDirectionalLight:

List of all members.

Public Member Functions
virtual MFn::Type	type () const
	Function set type.
virtual	~MFnDirectionalLight ()
	Destructor.
	MFnDirectionalLight ()
	Default constructor.
	MFnDirectionalLight (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor.
	MFnDirectionalLight (const MDagPath &object, MStatus *ret=NULL)
	Constructor.
MObject	create (bool UIvisible=true, MStatus *ReturnStatus=NULL)
	Creates a new directional light dependency graph node and adds it to the dependency graph.
MObject	create (const MObject &parent, bool UIvisible=true, bool wantTransform=false, MStatus *ReturnStatus=NULL)
	Creates a new directional light dependency graph node and adds it to the dependency graph.
float	shadowAngle (MStatus *ReturnStatus=NULL) const
	Retrieves the value of the "shadowAngle" attribute of a directional light node.
MStatus	setShadowAngle (const float &shadow_angle)
	Sets the value of the "shadowAngle" attribute of a directional light node.
bool	useLightPosition (MStatus *ReturnStatus=NULL) const
	Retrieves the value of the "useLightPosition" attribute of a directional light.
MStatus	setUseLightPosition (const bool use_light_position)
	Sets the value of the "useLightPosition" attribute of a directional light.
	MFnDirectionalLight (const MObject &object, MStatus *ret=NULL)
	Constructor.
MObject	create (const MObject &parent, bool UIvisible=true, MStatus *ReturnStatus=NULL)
	NO SCRIPT SUPPORT.
Protected Member Functions
virtual const char *	className () const
	Class name.

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Constructor & Destructor Documentation

~MFnDirectionalLight

(

)

[virtual]

Destructor.

The class destructor.

MFnDirectionalLight	(	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

MFnDirectionalLight	(	const MDagPath &	object,
		MStatus *	ReturnStatus = NULL
	)

Constructor.

Class constructor that initializes the function set to the given constant MDagPath object.

Parameters:

[in]	object	The const MDagPath 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

MFnDirectionalLight	(	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

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Member Function Documentation

MFn::Type type

(

)

const [virtual]

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Function set type.

Return the class type : MFn::kDirectionalLight.

Reimplemented from MFnNonExtendedLight.

const char * className

(

)

const [protected, virtual]

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Class name.

Return the class name : "MFnDirectionalLight".

Reimplemented from MFnNonExtendedLight.

MObject create	(	bool	UIvisible = true,
		MStatus *	ReturnStatus = NULL
	)

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Creates a new directional light dependency graph node and adds it to the dependency graph.

If the UIvisible parameter is true, the new node will be connected to the light classification node (which allows the UI to recognize the node as a light) and added to the default light list. If UIvisible is false, the node will be created in isolation.

The light node is added to the current model, under a new transformation.

Parameters:

[in]	UIvisible	determines whether or not to connect the new node to the light classification node and add it to the default light list.
[out]	ReturnStatus	return status

Returns:

MObject representing the new dependency node.

Status Codes:

• MS::kSuccess operation successful
• MS::kInsufficientMemory ran out of memory
• MS::kNoModelActive no model is currently active
• MS::kLicenseFailure application not licensed for attempted operation
• MS::kFailure the new node could not be added to the model, or the function set could not be properly initialized with the new object.

MObject create	(	const MObject &	parent,
		bool	UIvisible = true,
		bool	wantTransform = false,
		MStatus *	ReturnStatus = NULL
	)

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Creates a new directional light dependency graph node and adds it to the dependency graph.

If the UIvisible parameter is true, the new node will be connected to the light classification node (which allows the UI to recognize the node as a light) and added to the default light list. If UIvisible is false, the node will be created in isolation.

If wantTransform parameter is false ( which is by default ), the new shape node is created under the specified parent and no transform node is created. If the specified parent is null, then no shape node will be created.

The light node is added to the current model, under the specified parent.

Parameters:

[in]	parent	the node under which the new light and its transform will be added.
[in]	wantTransform	Boolean to indicate whether the transform node is needed or not, which is 'false' by default.
[in]	UIvisible	determines whether or not to connect the new node to the light classification node and add it to the default light list.
[out]	ReturnStatus	return status

Returns:

MObject representing the new dependency node.

Status Codes:

• MS::kSuccess operation successful
• MS::kInsufficientMemory ran out of memory
• MS::kNoModelActive no model is currently active
• MS::kLicenseFailure application not licensed for attempted operation
• MS::kFailure the new node could not be added to the model, or the function set could not be properly initialized with the new object.

float shadowAngle

(

MStatus *

ReturnStatus = NULL

)

const

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Retrieves the value of the "shadowAngle" attribute of a directional light node.

This attribute represents an angular divergence from the direction vector of the light used to calculate soft shadows.

Parameters:

[out]

ReturnStatus

return status

Returns:

The value of the "shadowAngle" attribute of the light node.

Status Codes:

• MS::kSuccess operation successful
• MS::kFailure function set does not have a valid object.

MStatus setShadowAngle

(

const float &

shadow_angle

)

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Sets the value of the "shadowAngle" attribute of a directional light node.

Parameters:

[in]

shadow_angle

value to which the attribute will be set.

Returns:

Return status

Status Codes:

• MS::kSuccess operation successful
• MS::kFailure function set does not have a valid object.

bool useLightPosition

(

MStatus *

ReturnStatus = NULL

)

const

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Retrieves the value of the "useLightPosition" attribute of a directional light.

This attribute determines if the objects behind the light will cast shadows.

Parameters:

[out]

ReturnStatus

return status

Returns:

The value of the "useLightPosition" attribute of the directional light.

Status Codes:

• MS::kSuccess operation successful
• MS::kSuccess function set does not have a valid object.

MStatus setUseLightPosition

(

const bool

use_light_position

)

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Sets the value of the "useLightPosition" attribute of a directional light.

Parameters:

[in]

use_light_position

value to which the attribute will be set.

Returns:

Return status

Status Codes:

• MS::kSuccess operation successful
• MS::kSuccess function set does not have a valid object.

MObject create	(	const MObject &	parent,
		bool	UIvisible = true,
		MStatus *	ReturnStatus = NULL
	)

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NO SCRIPT SUPPORT.

Creates a new directional light dependency graph node and adds it to the dependency graph.

If the UIvisible parameter is true, the new node will be connected to the light classification node (which allows the UI to recognize the node as a light) and added to the default light list. If UIvisible is false, the node will be created in isolation.

The light node is added to the current model, under a new transformation. The transformation is added to the current model under the specified parent.

Parameters:

[in]	parent	the node under which the new light and its transform will be added.
[in]	UIvisible	determines whether or not to connect the new node to the light classification node and add it to the default light list.
[out]	ReturnStatus	return status

Returns:

MObject representing the new dependency node.

Status Codes:

• MS::kSuccess operation successful
• MS::kInsufficientMemory ran out of memory
• MS::kNoModelActive no model is currently active
• MS::kLicenseFailure application not licensed for attempted operation
• MS::kFailure the new node could not be added to the model, or the function set could not be properly initialized with the new object.