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Very slow performance when copying rigid body physics
Confirmed, NormalPublicBUG


System Information
Operating system: Win 10 Pro
Graphics card: GTX 1660 Ti

Blender Version
2.83 beta

Short description of error
Hey guys,
I'm writing this as I'm still waiting for the "Copy from Active" command to be finished. It's been over 30 min now.
When lookin at the task manager I see CPU usage of only 15-27% on my Ryzen 2700X CPU. I have about 23K pills that I want to apply physics to. See attached blender file.
Is there a way this could be improved in the future and optimized so that 100% of the CPU could be used?
Thank you.

Exact steps for others to reproduce the error

  • Open attached file
  • Add Rigid Body to active object
  • Object > Rigid Body > Copy from Active

Event Timeline

update: I left my PC on all night, 8 hours, and it still didn't finish.
I had to force quit.

Does it work with a smaller number of objects in a reasonable time? or does it just hang above a threshold ?

It takes about 5 minutes to do 400 objects.

Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Wed, May 6, 2:19 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".

Simply copying properties shouldn't take that long.
This indeed seems to be a bug.