Blender 2.93 - Follow Path: Camera overshoots path end and drops indefinetely in Z direction #87854
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Reference: blender/blender#87854
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System Information
Operating system: Windows 10
Graphics card: NVIDIA GeForce RTX 3070
Blender Version
Broken: 2.93.0 beta,
db3b610040, master, 2021-04-25Worked: 2.92.0,
02948a2cab, master, 2021-02-24Short description of error
A camera setup with the follow path constraint stops the camera at the end of the path in 2.92.
In 2.93, the camera does not stop moving at the end of the path but keeps traveling in Z direction.20210427_followPath.blend
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).
Create camera, bezier curve and empty.
camera: parent to bezier curve with follow path
camera: track to constrint, target empty
Added subscriber: @Iam_Hidari
Added subscriber: @filedescriptor
Changed status from 'Needs Triage' to: 'Confirmed'
I can reproduce this. Seems like this could be a potential regression.
Added subscribers: @ZedDB, @wbmoss_dev
Due to
cf2baa585cprobably as an oversight.Pinging to let @ZedDB know about it.
This is intentional. Before it was capped because it couldn't properly extrapolate.
However other constraints (like splike IK) had workarounds to allow extrapolation.
In that patch I rewrote the underlying system so hacks like that wasn't needed anymore.
So now all "follow curve" can extrapolate and properly loop around a cyclic path.
Changed status from 'Confirmed' to: 'Needs Triage'
@ZedDB Is this documented? E.g. in the release notes?
Changed status from 'Needs Triage' to: 'Confirmed'
@filedescriptor No release notes as the change was a bug fix.
In addition to this we generally do not use versioning code to change animated data.
So I don't think there is much to do here. Things are working as intended.
Edit: Will discuss this with the animation module.
After some further discussion in the animation module, it was decided to add a "clamp" checkbox to the affected functions
This issue was referenced by
6a0906c09aChanged status from 'Confirmed' to: 'Resolved'