If you want to reload everything, make sure that no references to the former instances are left. destroy, flush, close and null everything before reloading. Apart from that, you don't have to reload. All you need is a new FrameBuffer instance, make the Textures keep their pixel data (there is a method for this) and some copy-magic. There is a thread here somewhere in the AE forum that mentions what i did in AlienRunner. It might be the AlienRunner thread itself, but i'm mot sure..