Make animation changing perspective ???

[marcoblbr]

Hey guys!

I'm from Brazil and just registered in this forum! I love photoshop and after effects, and I needed to do one animation that has to change its perspective. It's like that:

I have the wolf's mouth as a layer, and I change its perspective to open it more. My problem is that I needed to make an animation of this, so I just needed to keyframe this change of pespective, so that I could generate all the frames to make an animation of the mouth opening!!

I couldn't find a way to do this, even in After Effects! Any tips ?

Thanks!!

[marcoblbr]

Just to clarify more, I can't do this because photoshop or after affects doesn't allow me to keyframe the perspective of a layer, only it's position. So, when I change its perspective, all frames change as well. Some someone has a clue on how to do that!

Thanks!