"Not visible to camera" per render element... possible?

[Laserschwert]

Would it be possible to have objects be invisible to the camera (like in the normal object properties), but only for a specific render element?

Right now I have to switch to a different scene setup (and make the object invisible to the cam) whenever I want to render a clean ground reflection or ground shadow pass (if I take these elements from the normal rendering, they include the object itself, thus resulting in darkened or otherwise ugly edges around the alpha of the object), which is always very time consuming. And along these lines it would also be awesome to have a "VRayExtraMat" element, that doesn't simply render a specific map for an object, but a fully rendered element with another material.

Or is all of this impossible, as the render elements are solely based on the main rendering?

[joconnell]

At the minute the render elements get pulled from the main render, but I definitely like your idea. Having something rendered against black always gives better results in the comp along the edge!

[vlado]

For the moment this is not possible, but it is on the "to do" list.

Best regards,
Vlado

[joconnell]

This we like a lot!