Tser

I wonder if Copernicus can be used to generate a shadow matte?

Neohan

Mirko Jankovic
Any updates or solutions on this?

Nope. It's hard to believe that the feature is still not supported in Houdini's Karma renderer in 2024. It‘s been in use since around 2003. It’s a pretty simple, straightforward methodology, and essential for any renderer. Renderers like Vray, Redshift, Renderman, and Arnold have it.(even Metntal Ray)

Also IRay and Unreal...
Wonder if 20.5 can manipulate the new Cop system to send it back to the Karma XPU.

Is it now possible to implement a shadow catcher in 20.5?