Search Issue Tracker
Fixed
Unknown (hidden) 2021.3.X, 2022.1.X, 2022.2.X, 2022.3.X
Fixed in 2020.3.41f1, 2021.3.8f1
Votes
6
Found in
2020.3.35f1
2021.3.4f1
Issue ID
UUM-7568
Regression
No
Loading a scene with a large amount of light probes causes a performance spike
*Steps to reproduce:*
# Download and open user attached project (lightmaptest.zip)
# Open the "startingscene" scene & the profiler
# Start play mode
# Press "T" key to load using Additive
# Observe spike in profiler
# Stop play mode
# Repeat above, but press "Y" key to load using Single
*Notes:*
* We thought that is reproduces in 2021.3.5f1, 2022.1.7f1, 2022.2.0a13, 2023.1.0a1, but that was only a "few milliseconds spike", not the "few seconds spike" the user is seeing.
* Both LoadSceneMode.Single and LoadSceneMode.Additive causes a performance spike
* PostLoadSceneStaticLightmapSettings seems to be the culprit (see attached screenshots)
Comments (1)
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Warning of an unknown Script missing is logged when selecting VFX in Play Mode
- Vertical and horizontal scrollbars appear and disappear when dragging an attribute to a different position within the Shader Graph Hierarchy
- AudioSource.PlayDelayed() does not work with Audio Random Containers
- Compatible with the VFX Graph Shader Graph can't be dragged and dropped into the "Output" block from the Project window
- [Silicon] Freeze/crash on BrotliDecoderDecompressStream when using System.IO.Compression.BrotliDecoder.TryDecompress
TimHeijden2
Jul 08, 2022 07:21
Discussion about this issue is ongoing:
https://forum.unity.com/threads/additively-loading-scene-with-large-amount-of-lightprobes-causes-massive-performance-spike.1295442/#post-8254749