Tser

Heileif
Redshift has matte object. It makes it so easy to integrate the cg into the plate in the renderview, without doing allot of custom stuff just to get shadow and reflection into the background from the cg objects.

Just a toggle away on the mesh to get it working.

https://help.maxon.net/r3d/houdini/en-us/#html/Matte+Options.html?Highlight=matte [help.maxon.net]