Search Issue Tracker
Won't Fix
Duplicate in 2021.2.X
Fixed in 2019.4.X, 2020.3.X, 2021.1.X
Votes
4
Found in
2019.4.29f1
2020.3
2021.1
2021.2
2022.1
Issue ID
1360901
Regression
Yes
Poor performance when loading or unloading a large Scene
Reproduction steps:
1. Open the attached project "performance-test-project.zip"
2. Open "Loader.unity" Scene
3. Enter Play Mode
4. Click "Load Heavy Scene" in the bottom left corner to load
5. Observe "time" to load in the bottom right corner.
6. Click "Load Heavy Scene" again to unload
7. Observe "time" to unload in the bottom right.
Expected result: The Scene loading and unloading time is similar to previous Editor versions
Actual result: The Scene loading and unloading time is slower than previous Editor versions
Reproducible with: 2019.4.29f1, 2020.3.17f1, 2021.1.17f1, 2021.2.0b9, 2022.1.0a6
Not reproducible with: 2019.4.28f1
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
- ScriptableObject.OnDestroy is not called after Respouces.UnloadUnusedAssets
- UI stops rendering when WaterSurface's Caustics are enabled
- Black screen frame appears in the WebGL Player when the Unity loading screen is over
- Crash on WriteParticleLineVertex when the "Generate Lighting Data" property is enabled in the Particle System
- UI overlay becomes visible in ray-traced reflections when HDR Color output is enabled
Resolution Note (2022.1.X):
Fixed in: 2022.1.0a10