Search Issue Tracker
By Design
Votes
0
Found in
5.4.2f2
Issue ID
852260
Regression
No
Particle systems spend processing time on collisions for unused layers
This causes heavy CPU usage when there are many gameobjects in the scene
Steps to reproduce:
1. Download and open the attached project
2. Set "Snow Opt lit" Layer to "Particle Collision"
3. Open the Profiler window
4. Press play
5. Observe ParticleSystem.Update causing heavy loads
Reproduced on 5.2.3f1. 5.3.6p8, 5.4.2f2, 5.4.3f1, 5.5.0f1, 5.6.0a4 (2adb18c315e3)
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Out-of-bounds memory access with multiple CanvasRenderers under a Canvas when using Mesh API
- Inspector tries to access file after it was deleted when the file was locked in Inspector window
- Changing Transform values in Search window Inspector loses focus while dragging and stopping mouse without releasing dragging action
- Saving changes on the dirty VFX Graph during the Play mode throws "The referenced script (Unknown) on this Behaviour is missing!" warnings
- VFX Graph Debug Info overlaps the "Initialize" block debug info by default
Add comment