one entity, two worlds

[Shadoh]

is it possible (in c++) to take an entity, and have it part of a second 'world' object, so moving it around, will move it in both? Also the ability to have the terrain duplicated in both worlds is a requirement.

 

This is so I can configure what is rendered in reflections by creating a reflected world, and only adding objects I want to be reflected, then when I render the reflection buffer I'll only draw the reflected world.