[luis.hijarrubia]

and what you mean when you say : It's done using object opacity.?

Forget about that, i was referring to my example. But i was using true booleans, not that nested priority trick.

[seghier]

here a comparaison

custom material Hidden from GI enabled


opaque with Hidden from GI enabled


opaque with Hidden from GI disabled

[luis.hijarrubia]

The second one if for caustics, i think that this zone is cleaning faster in the image, but at high SL should be correct. Hope so at least.

[seghier]

thanks for help
i hope see boolean option with nested priority in studio