I put this to the test. I added a bunch of trees on my scene and during runtime I enabled “Freeze Rendering”, turned around and the trees are still there.
I was wondering, does frustum culling not work with foliage? If not, how come? And if so, is it possible to apply frustum culling to foliage?
It works in the same way, but foliage is HISM: Hierarchical instanced static mesh. And that means the culling and LOD-ing happens to whole areas of the actor.
hism is no difference then normal instancing. just batched. frustum culling per batch should still work.
Thank you for your replies, and you’re right, frustum culling does work on foliage. The specific tree I added on the scene was from speed tree, and apparently when I turned off wind, it worked. I’m not sure but I think it may have something to do with bounds on the tree being too large which hindered the frustum culling.
that would make sense. wpo is not predictable for bounding box tests. perhaps the bounding box is removed when it’s enabled? i’d have to check that. hmm…