#include <xsi_light.h>

Class Description

The Light object represents a Softimage light, such as a point light or a spot light.

You can create lights with X3DObject::AddLight. To get an existing light from a LightRig, you can use LightRig::GetLight.

See also:: OGLLight

Example:

                using namespace XSI;
                Application app;
                Model root = app.GetActiveSceneRoot();

                Light myPointLight;
                root.AddLight( L"Point", false,L"MyLight" ,myPointLight );

                app.LogMessage( L"Light name: " + myPointLight.GetName() );

Inheritance diagram for Light:

List of all members.

Public Member Functions
	Light ()
	~Light ()
	Light (const CRef &in_ref)
	Light (const Light &in_obj)
bool	IsA (siClassID in_ClassID) const
siClassID	GetClassID () const
Light &	operator= (const Light &in_obj)
Light &	operator= (const CRef &in_ref)
CRefArray	GetShaders () const
OGLLight	GetOGLLight () const
siShaderParameterType	GetShaderInputType (const CString &in_paramscriptname) const
CRefArray	FindShaders (const CString &in_filtername) const
CRefArray	GetAllShaders () const
CRefArray	GetAllImageClips () const

Constructor & Destructor Documentation

Light ( )

Constructs a Light object.

~Light ( )

Destroys a Light object.

Light ( const CRef & in_ref )

Constructs a Light object from a CRef object.

Parameters:

in_ref A reference to a light.

Light ( const Light & in_obj )

Constructs a new Light object from an existing Light object.

Parameters:

in_obj An existing Light object to copy into this Light object.

Member Function Documentation

bool IsA ( siClassID in_ClassID ) const [virtual]

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Returns True if this object supports the functionality of a specified class. For example, a Light is a type of X3DObject, so a Light object supports X3DObject functionality.

Parameters:

in_ClassID Test if this object supports this class.

Returns:: True if this object supports the specified class, and false otherwise.

Reimplemented from Directed.

siClassID GetClassID ( ) const [virtual]

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Returns the class ID for this object.

Returns:: The class ID.

Reimplemented from Directed.

Light& operator= ( const Light & in_obj )

Assigns a Light object to an existing Light object.

Parameters:

in_obj A Light object to be copied into this object.

Returns:: The reinitialized Light object.

Light& operator= ( const CRef & in_ref )

Assigns a CRef to this Light object. The Light object is cleared if the CRef is not a reference to an object that supports the Light class.

Parameters:

in_ref A reference to an object that supports the Light class.

Returns:: The reinitialized Light object.

Reimplemented from Directed.

CRefArray GetShaders ( ) const

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Returns an array of references to the Shader objects connected to this light.

Returns:: An array of references to shader objects.

See also:: CRefArray, Shader

OGLLight GetOGLLight ( ) const

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Returns the OGLLight for this light. The OGLLight object holds the light rendering information used by OpenGL.

Note:: The behavior of this method changed in Softimage 2013. Previously, OGLLight was being re-evaluated for each data request. As of Softimage 2013, a snapshot of the OGLLight parameters is taken when calling Light.GetOGLLight(). This means that Light.GetOGLLight() needs to be called again when parameters affecting the OGLLight are modified.

Returns:: The OGLLight for this light.

siShaderParameterType GetShaderInputType ( const CString & in_paramscriptname ) const

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Returns the input type of a light parameter. Before you connect a shader to the parameter, use Parameter::GetCapabilities to make sure that the parameter supports the siTexturable capability.

Parameters:

in_paramscriptname The script name of a parameter.

Returns:: The shader input type. If the parameter cannot be connected to a shader, siUnknownParameterType is returned.

Since:: 5.0

CRefArray FindShaders ( const CString & in_filtername ) const

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Returns all shaders that match a filter. For example, you can write a custom Filter that matches shaders with texturespace and colormap parameters, and then use this custom filter with this function.

Parameters:

in_filtername The name of a shader Filter (for example, siShaderFilter).