IDLgrLight
Superclasses | Creation | Properties | Methods | Version History
A light object represents a source of illumination for three-dimensional graphic objects. Lights may be either ambient, positional, directional, or spotlights. The first 8 non-ambient type lights encountered in a scene are activated. Any additional non-ambient lights are ignored. Ambient lights do not count toward the limit of 8 active lights. However, an application should define only a single ambient light since only the last ambient light encountered in a scene will be used to define the ambient light properties. If a positional, directional or spotlight type of light is not explicitly created, the default light TYPE is ambient. Lights are not required for objects displayed in two dimensions.
An IDLgrLight object is an atomic graphic object; it is one of the basic drawable elements of the IDL Object Graphics system, and it is not a container for other objects.
Superclasses
Creation
See IDLgrLight::Init.
Properties
Objects of this class have the following properties. See IDLgrLight Properties for details on individual properties.
In addition, objects of this class inherit the properties of all superclasses of this class.
Methods
This class has the following methods:
In addition, this class inherits the methods of its superclasses (if any).
Version History
