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Hair particles rendered as an object do not follow parent object when the parent object is falling under gravity as a rigid body when animating
Confirmed, NormalPublicKNOWN ISSUE


System Information
Operating system: Microsoft Windows 10 Home, Version 10.0.18362 Build 18362
Graphics card: GeForce GTX 1080

Blender Version
version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: 375c7dc4caf4, type: Release
build date: 2020-03-12, 15:41:08
platform: Windows

Short description of error
I have an issue where i have a cube mesh, I create hair particles, and set the hair to render as an object, say a cylinder. I then enable rigid body physics for the cube. I also have a passive plane below the cube. When I run an animation, the cube falls as if under gravity and stops at the plane, but the cylinder particles remain in their original position?

If I add soft body physics to the cube and order the soft body physics before the particle settings, then the cylinders fall, but lag behind the cube. The cube falls through the plane below, but the cylinders are stopped by the plane?

With soft body added (to top of stack). Particles do fall but have a lower acceleration rate, and the cube no longer detects the floor and passes through the plane?!


Exact steps for others to reproduce the error
See attached blend file

Event Timeline

Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Thu, Mar 26, 3:56 PM
Richard Antalik (ISS) updated the task description. (Show Details)
Richard Antalik (ISS) changed the subtype of this task from "Report" to "Known Issue".

This seems to be 2 bugs really, but I can confirm this. In any case this will be known issue, because particle system is to be replaced

Hi Richard, Ah, OK, is there a workaround or a link to the two existing issues, thanks!

Hi Richard, Ah, OK, is there a workaround or a link to the two existing issues, thanks!

I don't know unfortunately.