Not sure if it is a bug. I have Corona version7 (Hotfix1)
When I use Direct visibility override, I use to create an almost black background so that when I select the inverted Alpha channel to cut the background out of the Corona rendered image it helps cut back the halo edge issues especially with trees and plants.
So I used the Direct visibility override, I get a partial black background and not a full one. See attached image. Is this a bug? Is there a work around on this issue? I'm also using Corona sun/sky.
Thanks for your help!