Dgame use VBO's and VBA's for the TileMap: http://dgame-dev.de/?package=System&module=VertexBufferObject http://dgame-dev.de/?package=System&module=VertexArrayObject http://dgame-dev.de/?package=System&module=VertexRenderer http://dgame-dev.de/?package=Graphics&module=TileMap
and it has a FrameBufferObject implementation: http://dgame-dev.de/?package=System&module=FrameBufferObject But I'm not sure if that is helpful for you.
