Content creators can define values for the lighting parameters in the JSON configuration file.

Each lighting option has specific sub-parameters to adjust how the lighting interacts with a scene. The following sub-parameters are available for multiple lighting options:

• auto_updating_lighting – determines if the scene should use ARKit’s scene lighting calculations to adjust the intensity based on lighting in the real environment
• color – color of the light in RGB; defaults to 255, 255, 255 (white)
• direction – direction of the light as an Euler vector with X, Y, and Z coordinates in radians; defaults to -1.57, 0, 0
• The value -1.57 represents -π/2. The default direction points directly down from the origin.
• intensity – intensity of the light in lumens; defaults to 1000
• position – position of the light with respect to the origin; defaults to 0, 0, 0 (origin)
• temperature – temperature of the light in Kelvin; defaults to 6500

Content creators can disable the animation and lighting in edit mode. This ensures models do not float above the plane and only displays lighting defined by the content creator in the JSON configuration file.

To disable the edit mode animation, content creators can define the edit_mode_animation parameter in the JSON configuration file. See Defining AR Scenes for more information.