Search Issue Tracker

Fixed in 2023.1.X

Duplicate in 2021.3.X



Found in


Issue ID




[PLM] Baking stalls with terrains containing lots of holes

Progressive Lightmapper


Steps to reproduce:

1. Download the attached project (DrArm-TerrainHolesRepro)
2. Open the TerrainRepro scene
3. Generate lighting using either CPU or GPU lightmapper
4. Baking stalls


- Reproduces both with CPU and GPU lightmappers; Enlighten baked GI is not affected
- Reproduces in: 2021.2.0a15, 2021.2.0a16, 2021.2.0b1, 2021.2.0b4, 2021.2.12f1, 2022.1.0b8, 2022.2.0a1
- Does not reproduce in: 2021.2.0a4, 2021.2.0a8, 2021.2.0a12, 2021.2.0a14, 2021.1.20f1
- Uncovered while verifying the following issue:

Editor log print:

[PathTracer] Failed to add geometry for terrain with hash '6651e6407e4c7571df7c168c1d1232c8'; terrain has no triangles or is fully covered by hole(s).

Comments (1)

  1. marksuid

    Mar 01, 2023 14:58

    I have waited 2 years for UUM-4946 (a terrain related several second PERFORMANCE REGRESSION) and now it is finally fixed in 2020.3.45 - only for 1408533 to prohibit use of this LTS release.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.