There are some transition examples in the code archives (2D Graphics), although I'd suggest to use a quad containing a pixelperfect texture that displays picture A, and then crossfade to pic or scene B. If both scenes have to be animated (real 3D) then I'd try to use two cameras, copy the render of the first one to a texture buffer and use the mentioned quad with scene B.
First of all you need to align a quad or sprite to the camera in a way that it's texture looks absolutely the same as a 2D image. You may find some pixel perfect examples in the code archives too.
First of all you need to align a quad or sprite to the camera in a way that it's texture looks absolutely the same as a 2D image. You may find some pixel perfect examples in the code archives too.