hello. Simple question, but I couldn’t figure out. Other DCCs have a ‘Primary Visibility’ attribute on the objects. How do I translate this to UE? What would I do, if I want to turn off the primVis of an actor?
mrmraw75
October 6, 2025, 2:44pm
2
I have been told that it isn’t possible. Please Epic: add this in a future release- this is crucial for proper compositing.
Hi @bweiglhselde amd @mrmraw75 ,
Evan Hammel shared a solution to the question you’re asking in this post
Hi @mrmraw75
You can achieve the same effect as Primary Visibility by setting an object’s attributes to the following:
Visible: Off
Affect Indirect Dynamic Lighting While Hidden: On
Objects with this will be invisible to the camera, but will show up in reflections, cast shadows, and affect GI.
Alternatively, there is a Holdout setting which does the same, but also punches out the screen as black wherever it is visible to the camera.
These both work in Lumen & path tracing.
Hope it helps!