Faking 3d In Ae

[user_deleted]

Right, I'm using After Effects to get some 3d stereoscopic output, using the AE 3d space to show mainly flat layers moving about in nice 3d. Doing it in Stereoscopic means the i've got 2 converging cameras that are later comped together into the full 3d video.
However, now i'm using Cycore Sphere, and since that gives me completely 2d layers that are just fake 3d, the view in each camera is from the exact same angle... and hence flat.
The 3d would be easy to fake just by changing the Y-rotation in CC sphere, but since my cameras are moving, I think i'm gonna have to use an expression to link the rotation of the spheres with the camera position... using trigonometry, probably.
I can't seem to get the actual rotation values of the camera convergence since i'm using 'Orient towards point of interest' in the cameras.
So, using an expression, i'm gonna have to use the distance between the cameras (a variable I can control) and the distance from the cameras to the objects to work out how much the Cycore sphere will 'rotate'....

If it makes it any clearer, I'm doing a camera path that flies around the planets of the solar system...

Can anyone help?

[user_deleted]

ok, think i've worked this one out.

you can use the auto orient feature to orient 3d layers towards the camera (layer > orient). this will give your layers rotation values which with a bit of luck you'll be able to feed into the cycore rotation fields, using a simple expression and the funny whip thing.

that's the theory anyway.

if you use two duplicate layers at exactly the same xyz positions and linked to the separate camera's you should even get the correct rotations for the depth perspective.