I have some more information on this.
It seems that the instances are almost completely ignoring frustum culling or behaving as groups.
This one is particularly interesting as the blocks within the hole should be entirely invisible.
And here it is even more evident that individual instances do not take frustum culling into account. These blocks are all under the landscape but not occluded:
Any ideas on how to force culling on a per/instance basis welcome…
Also, the InstancedStaticMeshComponent doesn’t occlude at all:
One more screenshot. the Bounds clearly display the difference of how instances are collected between the foliage on the landscape and the HISM component…
