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Maniphest T70075

A combination of "Child of" constraint and "Rigid Body" physics has no inertia.
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Description

System Information
Operating system: Windows-10-10.0.10240 64 Bits
Graphics card: GeForce GT 710/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.65

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Worked: (optional)

Short description of error
A Rigid body (box) is a "Child of" an armature that consists of some bones. When the child of constraint is disabled, the rigid body goes to its original place instead of inheriting the velocity of the moving armature (It should be thrown away after being disconnected).

Exact steps for others to reproduce the error
Instead of describing the exact steps, I uploaded the .blend file. You can simply download it and play the animation an see the result yourself.

bring something and throw it.blend707 KBDownload

I really want to thank the blender team and developers for their great job. Much appreciated. You're great smart inventors and programmers. Thanks for giving us such great software.

Event Timeline

Michael George (benkyearn) created this task.Sep 19 2019, 3:53 PM
David Vogel (Dadido3) added a subscriber: David Vogel (Dadido3).Sep 19 2019, 4:04 PM

In my opinion not a bug: You need to disable the "Animated" property for the rigid body object.

Ideally you animate that propery, and disable in the same moment you disable your constraint:

bring something and throw it.blend735 KBDownload

Michael George (benkyearn) added a comment.Sep 19 2019, 4:45 PM

You're right about that. Thanks for your comment and sorry for inconvenience :) It's now solved.

Michael George (benkyearn) changed the task status from Unknown Status to Archived.Sep 20 2019, 10:02 AM
Michael George (benkyearn) claimed this task.