Ok i know a far bit about after effects and know that 3d cameras are posible and how to control them. So if i want to mix a cgi generated object into a real life enviroment, I know i have to create this in a 3d program and then export. This i haven't done and heres my main question, is it posible to create a 3d object then import it into after effects as a 3d object and then use it as a 3d object in a scene.
Example - i want to create some 3d buttons that appear in a scene(cgi mixed with real life scene) i want to also as it is easier to do have the buttons move and interect all in after effects. Or do i have to create the scene in a 3d engine render the movement and then import into after effects??
Also what is the best 3d software for this and what should i export this as ie file type