My use-case is particular, the game uses both 3d and 2d animations, and 3d ones are not always needed, in most part of the interaction they don’t need to be updated.
If you want Away3D to be a faithful convertion of the AS one it should use a frame buffer, otherwise it could be enabled by adding a property to view3d.renderer. i.e. view3d.renderer.frameBuffer -> true/false (or simply view3d.frameBuffer), what do you think? Is there any kind of problem in keeping a separate framebuffer for view3D/stage3D?