Rigid Bodies do not interact properly when animated #93587

New Issue

Conrad-Falloff · 2021-12-03T00:01:35+01:00

Conrad-Falloff commented

2021-12-03 00:01:35 +01:00

System Information
Operating system: Windows 10
Graphics card: NVIDIA GeForce RTX 2070

Blender Version
Broken: Tested on 2.93.6, broken on assumedly many more
Worked: Unknown

Short description of error
Rigid bodies do not interact with each other properly when one of them is deformed via Armature Modifier.
.
Exact steps for others to reproduce the error

Add an Object as a Rigid Body (Passive, Animated), and rig it to an Armature.
Have the bone(s) controlling said Rigid Body be animated (e.g setting an axis of rotation to #frame/30)
Add another Object as a Rigid Body (Active) to interact with the first one
The Passive Object moves, but the Active Object will only interact with it as if the Passive Object is stuck on Frame 1.

This could be due to how the Rigid Body settings are not considered a Modifier like Collision, Cloth, Dynamic Paint, or Fluid (reinforced by how a Cloth Object interacts correctly with a Collision Object deformed by an Armature Modifier)rigidbodyissue.blend

**System Information** Operating system: Windows 10 Graphics card: NVIDIA GeForce RTX 2070 **Blender Version** Broken: Tested on 2.93.6, broken on assumedly many more Worked: Unknown **Short description of error** Rigid bodies do not interact with each other properly when one of them is deformed via Armature Modifier. . **Exact steps for others to reproduce the error** - Add an Object as a Rigid Body (Passive, Animated), and rig it to an Armature. - Have the bone(s) controlling said Rigid Body be animated (e.g setting an axis of rotation to #frame/30) - Add another Object as a Rigid Body (Active) to interact with the first one - The Passive Object moves, but the Active Object will only interact with it as if the Passive Object is stuck on Frame 1. This could be due to how the Rigid Body settings are not considered a Modifier like Collision, Cloth, Dynamic Paint, or Fluid (reinforced by how a Cloth Object interacts correctly with a Collision Object deformed by an Armature Modifier)[rigidbodyissue.blend](https://archive.blender.org/developer/F12681944/rigidbodyissue.blend)

Conrad-Falloff commented

2021-12-03 00:01:35 +01:00

Added subscriber: @Conrad-Falloff

blender-admin commented

2021-12-03 00:01:35 +01:00

#100526 was marked as duplicate of this issue

Richard Antalik commented

2022-02-04 06:57:17 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Dalai Felinto commented

2022-05-09 15:28:16 +02:00

Added subscribers: @sreich, @dfelinto

Dalai Felinto commented

2022-05-09 15:28:16 +02:00

Thanks for the report. Marking this as known issue since it depends on the rigid body system which at the moment has no active developer. I'm tagging Sergej here anyways in case he wants to tackle any of those. Anyone wlse interested on that can also join the geometry nodes meetings to get onboarded.

Omar Emara commented

2022-08-29 10:20:38 +02:00

Added subscriber: @Weiwen-Hu

Philipp Oeser removed the

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Rigid Bodies do not interact properly when animated #93587