MFnNonAmbientLight Class Reference
[OpenMaya - API module for common classesFunctionSet classes]

#include <MFnNonAmbientLight.h>
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List of all members.


Detailed Description

Manage Non-ambient Light dependency Nodes.

MFnNonAmbientLight facilitates modification of dependency graph nodes representing non-ambient lights. This includes area lights, linear lights, and non-extended lights.

Examples:

hwAnisotropicShader_NV20.cpp, and hwToonShader_NV20.cpp.


Public Member Functions

virtual MFn::Type  type () const
  Function set type.
virtual  ~MFnNonAmbientLight ()
  Destructor.
  MFnNonAmbientLight ()
  Default constructor.
  MFnNonAmbientLight (MObject &object, MStatus *ReturnStatus=NULL)
  Constructor.
  MFnNonAmbientLight (const MDagPath &object, MStatus *ret=NULL)
  Constructor.
short  decayRate (MStatus *ReturnStatus=NULL) const
MStatus  setDecayRate (const short &decay_rate)
  MFnNonAmbientLight (const MObject &object, MStatus *ret=NULL)
  Constructor.

Protected Member Functions

virtual const char *  className () const
  Class name.

Constructor & Destructor Documentation

MFnNonAmbientLight::~MFnNonAmbientLight (  )  [virtual]

Destructor.

The class destructor.

MFnNonAmbientLight::MFnNonAmbientLight ( 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:

MFnNonAmbientLight::MFnNonAmbientLight ( 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:

MFnNonAmbientLight::MFnNonAmbientLight ( 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:

Member Function Documentation

MFn::Type MFnNonAmbientLight::type (  )  const [virtual]

Function set type.

Return the class type : MFn::kNonAmbientLight

Reimplemented from MFnLight.

Reimplemented in MFnAreaLight, MFnDirectionalLight, MFnNonExtendedLight, MFnPointLight, MFnSpotLight, and MFnVolumeLight.

const char * MFnNonAmbientLight::className (  )  const [protected, virtual]

Class name.

Return the class name : "MFnNonAmbientLight"

Reimplemented from MFnLight.

Reimplemented in MFnAreaLight, MFnDirectionalLight, MFnNonExtendedLight, MFnPointLight, MFnSpotLight, and MFnVolumeLight.

short MFnNonAmbientLight::decayRate ( MStatus ReturnStatus = NULL  )  const

Retrieves the value of the "decayRate" attribute of a non-ambient light node. This attribute determines the type of decay for the light.

The decay rate is with respect to the distance between the light and the surface point being shaded. The decay values range from 0 - 3. The light intensity decays according to (I / d ** v), where I is the light intensity, d is the distance between the light and the surface point being shaded, and v is the decay rate value. A decay rate of 0 means there is no decay in intensity, a value of 1 indicates linear decay. A decay rate of 2 is the most physically accurate behaviour.

Parameters:
[out]  ReturnStatus  return status
Returns:
The value of the "decayRate" attribute of the non-ambient light node.
Status Codes:

MStatus MFnNonAmbientLight::setDecayRate ( const short &  decay_rate  ) 

Sets the value of the "decayRate" attribute of a non-ambient light node.

Parameters:
[in]  decay_rate  value to which the attribute will be set.
Returns:
Return status
Status Codes:

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