There are three mechanisms that can be used by developers to create custom scene data. These are:

• Custom attributes - this is the recommended method to attach custom data with scene objects nodes.
• Custom user properties - this is a relatively limited mechanism for associated simple string data in an INI file (i.e. "key = value") ASCII format.
• Application data - this is custom data that is accessible programmatically, and can allow custom binary data (called data chunks) to be associated with objects dervied from Animatable.