Rigid body constraint hinge shift with animated object #85529
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Reference: blender/blender#85529
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Operating system: windows 10
Graphics card: Nvidia gtx 1070
Blender Version
Broken: blender 2.92 today build,
b67423f806
alsoShort description of error: The constraint hinge is shift when combined with an animated rigid body.
in some cases this shift occurs at the beginning of the animation and other times it is at the moment of a shock with an obstacle.
Exact steps for others to reproduce the error
Put an object in rigid body connection with a hinge stress with a first object. Animate the first object.
Open the blend file,
Shift frame from current to next, see cube.001.
rigidbody_hinge.blend
Also, there's an ASan error if you open the file, shift frame to next, close file.
T85529_asan_report.txt
Added subscriber: @jemian
In fact all rigid body constraints are bugged with the same problem.
it worked on the 2.79 . Since all constraint rigid with "animated" is broken
Changed status from 'Needs Triage' to: 'Confirmed'
Added subscriber: @ankitm
Added subscriber: @Fernando-Alcala
I've come across this issue as well. Whenever you're animating a rigid body on frame 1 or before, it bugs out like that. The workaround is to not use frame 1.
2021-05-28 15-27-37.mp4
Yep but If you have an animation that starts in the camera field in another frame, this solution does not work.
Added subscribers: @sreich, @dfelinto
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.