rendering shadows only???

[frank1331]

I have a scene that I am rendering which uses RPC trees. The problem is that they are too dense. I would like to add them later in Photoshop, but need the shadows that the RPC's cast. So, is there a way to not render the trees, but have the actual shadows render.

 

Using Max 7 with Vray-free.

[carlangas]

Just right click the objects you want and check "Invisible to camera".