Rendering script

[YoyoBoy]

Are there any scripts out there that can simply take a selection set, render just those objects and the shadows they cast, and then set everything back to normal again? And of course I would want their alphas to reflect whatever objects in the scene occlude them. And it would be good if their shadows were clipped by other shadows in the scene. Not sure how that would work.

Thanks.

[YoyoBoy]

Btw, in the past I've done this with the VRaySphereFade, but I'm just looking for a solution that's easier to comp. The SphereFade always has a rim around it that I have to try to choke out, and that doesn't always work very well.