Lights Object Preview

Derived from: Base Object
Defined in namespace "adsk::fusion" and the header file is <Fusion/Render/Lights.h>

PreviewThis functionality is provided as a preview of intended future API capabilities. You are encouraged to use it and report any problems or suggestions using the Fusion API and Scripts forum.

Because this is a preview of future functionality, there is the possibility that it will change, which will possibly break any existing programs that use this functionality. Because of that, you should never deliver any programs that use any preview capabilities. For a distributed program, you should wait until it has moved from preview to released state.

Description

Provides access to the lights used by the scene and supports creating new lights.

Methods

Name Description
addDirectionalLight

Creates a new directional light pointing in the specified direction.

addPhotometricLight

Creates a new photometric light at the specified position, pointing in the specified direction.

addPointLight

Creates a new point light at the specified position.

addSpotLight

Creates a new spot light at the specified position, pointing in the specified direction.

classType

Static function that all classes support that returns the type of the class as a string. The returned string matches the string returned by the objectType property. For example if you have a reference to an object and you want to check if it's a SketchLine you can use myObject.objectType == fusion.SketchLine.classType().

item

Function that returns the specified light using an index into the collection.

itemByName

Returns the light with the specified name, as the name is displayed in the user interface.

Properties

Name Description
count The number of lights in the collection.
isLightBulbOn Gets and sets whether the light bulb for the Lights folder is on. This corresponds to the Show/Hide light bulb toggle on the Lights folder in the browser, which controls whether the lights in the collection are displayed.
isValid Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.
objectType This property is supported by all objects in the API and returns a string that contains the full name (namespace::objecttype) describing the type of the object.

It's often useful to use this in combination with the classType method to see if an object is a certain type. For example: if obj.objectType == adsk.core.Point3D.classType():

Accessed From

RenderManager.lights

Version

Introduced in version September 2026