Foliage prim count UE4-27

Development World Creation
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1

Hello,

I have two levels in a project that are basically duplicates of eachother. They have the same layout and assets in them. For some reason though one of the levels has more than 4 times the prim count of the other map (47k vs 12k), which causes a significant fps drop. The problem seems to be the foliage actor specifically. When I delete this actor in the bad level, the prim count drops by about 40k. When I do it in the good level, the prim count drops by about 9k. Does someone know why this is, and how to solve it?

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Regards,
Joris

2

It looks like your bottom snapshot is possibly rendering the meshes at a higher LOD than the top snapshot. Is it possible your scalability settings are different between the 2 somehow?

3

All the meshes have only 1 LOD level, so I dont think thats the issue.