Adapter is a class that provides Lightsprint interface (e.g. RRScene) to data in other formats (e.g. Gamebryo scene in memory, Collada scene on disk).

Lightsprint transports light between object surfaces, so it needs to know everything about scene geometry and material properties.

Lightsprint is designed to access your structures in arbitrary format, so you don't have to duplicate any data. This may save you huge amounts of memory, however, you must provide adapters that access your structures.