Hi all,
I’m trying to masked out areas with a material on a plane that renders transparent but shows up in mask passes. This is for these situations where you need to mask everything behind an open window/ door etc.
Sure, I could render a second time, only for the masks, but I need this for the times when your deadline is at 6pm and you stop your render at 5:59… sounds familiar?
The only “weird” workaround I could find is to use Refraction / Thin (no refraction) and Reflection black value set to 0.1%.
Using no Reflection and the mask wouldn’t render at all.
While this workaround appears “invisible” in the rendered image, it technically still needs to calculate reflections that add to render time.
I tried many other things before that didn’t work. For example Comp tag “Seen by cam” unchecked / “visible in mask” visible.
Or, put the plane (not seen by cam / mask visible) in the multi pass “include selection”
Do you know of a better way to do this? Please let me know.
Thanks.
