A Linear Extrapolation bug of pending Action in NLA stack #48714

New Issue

Vsevolod · 2016-06-23T07:10:22+02:00

Vsevolod commented

2016-06-23 07:10:22 +02:00

System Information
Various system configurations, OS: Windows 7, Windows 8.1

Blender Version
Broken: 2.76b, 2.77

Short description of error
Linear Extrapolation seems does not working while Action not yet pushed down onto NLA stack as Strip and stack (pertaining to the same object as action) contains at least one Track with at least one Strip.

Exact steps for others to reproduce the error

Open attached .blend file: NLA_bug_2.76b_2.77_example.blend.
Play animation.

See, that cube stops its motion along X axis at the frame 15 although according to Graph Editor it is obvious that the cube should continue its motion.

Additional information

If all existing Action Strips (in my example only one) will be deleted Linear Extrapolation in the pending Action will work as expected.
If to Channel will be added at least one Modifier the bug will disappear.
If pending Action will be pushed down onto NLA stack as Strip the bug will disappear.
Bug appears only if Strips belong to the same object as pending Action.

**System Information** Various system configurations, OS: Windows 7, Windows 8.1 **Blender Version** Broken: 2.76b, 2.77 **Short description of error** *Linear Extrapolation* seems does *not working while* Action not yet pushed down onto NLA stack as Strip and stack (pertaining to the same object as action) contains at least one Track with *at least one Strip*. **Exact steps for others to reproduce the error** - Open attached .blend file: [NLA_bug_2.76b_2.77_example.blend](https://archive.blender.org/developer/F318326/NLA_bug_2.76b_2.77_example.blend). - Play animation. # See, that cube stops its motion along X axis at the frame 15 although according to Graph Editor it is obvious that the cube should continue its motion. **Additional information** - If all existing Action Strips (in my example only one) will be deleted Linear Extrapolation in the pending Action *will work as expected*. - If to Channel will be added at least one Modifier the *bug will disappear*. - If pending Action will be pushed down onto NLA stack as Strip the *bug will disappear*. - Bug appears only if *Strips belong to the same object* as pending Action.

Vsevolod commented

2016-06-23 07:10:22 +02:00

Changed status to: 'Open'