Rigid Body Constraint in duplicated collection is not added to RigidBodyConstraints collection #66944

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Phil · 2019-07-15T00:53:22+02:00

Phil commented

2019-07-15 00:53:22 +02:00

System Information
Operating system: Linux Mint 19.1 XFCE
Graphics card: Nvidia GTX 970 4G

Blender Version
blender-2.80rc1-linux-glibc217-x86_64

Duplicating a collection containing rigid bodies connected by a Rigid Body Constraint duplicates the rigid body constraint, but does not add the duplicated constraint to the RigidBodyConstraints collection, so the duplicated constraint has no effect on the duplicated rigid bodies.

Create an object and add it as an active rigid body at location (0, 0, 0).
Create another object and add it as a passive rigid body at location (0, 0, 2).
Select both the active rigid body and the passive rigid body in that order, and connect them with a rigid body constraint ('Fixed' type by default).
Select both rigid bodies and the constraint, and move them into a new collection.
Run the animation - the active rigid body remains in position correctly.
Duplicate the collection containing the rigid bodies and the constraint.
Select all of the contents of the duplicated collection, and move them to another location away from the original objects and constraint.
Run the animation - the original rigid bodies remain in position, but the active rigid body in the duplicated collection falls. The 3D View shows the connection line between the duplicated rigid bodies as the active rigid body falls.
The Outliner window in Data API mode reveals that 'Blendfile Data - Collections - RigidBodyConstraints - All Objects' contains only the original constraint. The duplicated constraint is not listed.
2019-07-15_08-21-15_rigidbodyconstraint_bug.blend

system-info.txt

System Information Operating system: Linux Mint 19.1 XFCE Graphics card: Nvidia GTX 970 4G Blender Version blender-2.80rc1-linux-glibc217-x86_64 Duplicating a collection containing rigid bodies connected by a Rigid Body Constraint duplicates the rigid body constraint, but does not add the duplicated constraint to the RigidBodyConstraints collection, so the duplicated constraint has no effect on the duplicated rigid bodies. Create an object and add it as an active rigid body at location (0, 0, 0). Create another object and add it as a passive rigid body at location (0, 0, 2). Select both the active rigid body and the passive rigid body in that order, and connect them with a rigid body constraint ('Fixed' type by default). Select both rigid bodies and the constraint, and move them into a new collection. Run the animation - the active rigid body remains in position correctly. Duplicate the collection containing the rigid bodies and the constraint. Select all of the contents of the duplicated collection, and move them to another location away from the original objects and constraint. Run the animation - the original rigid bodies remain in position, but the active rigid body in the duplicated collection falls. The 3D View shows the connection line between the duplicated rigid bodies as the active rigid body falls. The Outliner window in Data API mode reveals that 'Blendfile Data - Collections - RigidBodyConstraints - All Objects' contains only the original constraint. The duplicated constraint is not listed. [2019-07-15_08-21-15_rigidbodyconstraint_bug.blend](https://archive.blender.org/developer/F7609227/2019-07-15_08-21-15_rigidbodyconstraint_bug.blend) [system-info.txt](https://archive.blender.org/developer/F7609228/system-info.txt)

Phil commented

2019-07-15 00:53:22 +02:00

Added subscriber: @Philstix

Bastien Montagne was assigned by Sebastian Parborg

2019-07-16 12:15:58 +02:00

blender-admin commented

2019-07-16 16:04:22 +02:00

This issue was referenced by 105ae3be99

This issue was referenced by 105ae3be9993a646615499bf793cb14549e4104d

Bastien Montagne commented

2019-07-16 16:09:00 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2019-07-16 16:09:00 +02:00

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Rigid Body Constraint in duplicated collection is not added to RigidBodyConstraints collection #66944