Maniphest T89840

Particle simulations dont generate valid disk caches
Confirmed, NormalKNOWN ISSUE

Assigned To
None
Authored By
Panthera Altaica (draltaica)
Jul 13 2021, 5:49 PM
Tags
  • BF Blender
  • Nodes & Physics
Subscribers
Dalai Felinto (dfelinto)
Panthera Altaica (draltaica)
Philipp Oeser (lichtwerk)

Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1650/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.30

Blender Version
Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: rB1b8d33b18c2f
Worked: (newest version of Blender that worked as expected)

and I tried on the blender-2.83 LTS and it has the same issue.

Short description of error
Blender stops simulating particle systems. if I'm baking them it just puts noting in the bake if I'm rendering without baking first if doesn't do anything except make my fans run full blast.

Exact steps for others to reproduce the error
create a bunch of particle sims. Use I used the script in the blend to do it.
run bake all dynamics. Only the first few of them actually generate anything.

Of don't bake and just try to render. It freeze.

Event Timeline

Panthera Altaica (draltaica) created this task.Jul 13 2021, 5:49 PM
Philipp Oeser (lichtwerk) added a project: Nodes & Physics.Aug 12 2021, 2:14 PM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Can confirm.

First I thought T68436: External Particle Cache Playback Is Broken (2.8), but this is not even using external caches.

Philipp Oeser (lichtwerk) renamed this task from Blender can't calculate particle simulations to Particle simulations dont generate valid disk caches.Aug 12 2021, 2:15 PM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Aug 12 2021, 4:22 PM
Panthera Altaica (draltaica) added a comment.Aug 12 2021, 9:34 PM

If you use play to generate the simulation then use "Current Cache to Bake" you can apparently work around this problem.

Panthera Altaica (draltaica) added a comment.Jan 9 2022, 4:57 PM

This .blend is working in 3.0.

Dalai Felinto (dfelinto) changed the subtype of this task from "Report" to "Known Issue".May 9 2022, 3:17 PM
Dalai Felinto (dfelinto) added a subscriber: Dalai Felinto (dfelinto).

Thanks for the report. Marking this as known issue since it depends on the old particle settings which is end of life.