Unstreamed smooth terrain is inside out

Bug Reports Engine Bugs
1

Reproduction Steps

  1. Create Terrain
  2. Set streaming target/min radius really low
  3. Press Shift+P and go to Terrain, you should see inside out terrain

If it does not work, try creating it very thin.

Expected Behavior
The terrain should properly face outwards, but it does not.

Actual Behavior
Terrain not yet loaded by streaming will more than likely be inside out(or a mix of inside out and vice versa).

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image881×451 96.1 KB

Issue Area: Engine
Issue Type: Other
Impact: Low
Frequency: Often

4 Likes
2

Thanks for this report. This is known problem and we are working on this. Terrain does not really play well with the low streaming radiuses.

4 Likes
3

By doing this, you essentially see terrain at a very low LOD. This shouldn’t normally happen in practice.
The reason this looks so bad is because low LODs have a lot of imprecisions and artifacts at LOD transitions.
This is the limitation of the current terrain system, but we hope to improve this in the future.