Unreal Engine Issues

UE-90633

Large Landscapes using World Composition have weird LODs when streamed out and back in

Large Landscapes using World Composition have weird LODs when streamed out and back in

Description

When World Composition Sublevels are streamed out and back in the LODs appear distorted.

This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview 2 (CL-12055273), and Main 4.26 (CL-12161634)

Steps to Reproduce
  1. Download and open the attached project
  2. Press Play and move around the level
  3. When a Sublevel streams out turn around and stream it back in

Results: The levels newly streamed-in are looks nice and have proper polygons,
but if the levels are streamed-out then the adjacent sub meshes's LOD is broken and have very poor polygons.

Expected: Sub levels must have proper LOD meshes

Have Comments or More Details?

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Unresolved
ComponentUE - World Creation - Worldbuilding Tools - World Composition
Affects Versions4.23.1, 4.24.3, 4.25, 4.26
Target Fix5.5
CreatedMar 13, 2020
UpdatedFeb 12, 2024