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
- Mono Windows Builds don't produce full log callstacks when generating logs
- AssetBundles fail to load when running in Built Players for Mobile Devices
- UI elements with text gets bigger and grey when Player window is moved to another screen with different resolution
- System name accepts multiline text but crops it on confirmation, duplicates input, and shrinks the field when empty
- UI element scale and position are wrong in project build when DRS is changed with HDR and Software Dynamic Resolution enabled
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