Blender development todo list -- Animation System #55365
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Reference: blender/blender#55365
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Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
NOTE: this is a direct dump of https://wiki.blender.org/index.php/Dev:Source/Development/Todo/Animation (without cherrypicking the [still] valid items)
Armature
and Jointools should move animdata around too (using BKE_animdata_separate_by_basepath), see report: #31966Rigging
Constraints
Constraints involving rotations - in particular, childof, transform, copy rotation - with influence < 1 are known to behave weirdly due to limitations with the underlying math. In particular, matrix decomposition issues mean that rotations are only guaranteed to be clamped to lie with +/- 180 degrees (causing issues with gears and other setups where the magnitude+direction of rotation matters), and negative scale factors cannot actually be individually identified with any accuracy. These are well known limitations of the current system, which are non-trivial and currently intractable problems. (e.g. #40671, #37623, #40873, and many many others before them)
PyConstraints - these are quite high on the priority list to restore, but are still waiting on a few technical issues to be resolved still
Transform Constraint functions quite limited. Postponed to fix. #27286
Note: the "Child of" constraint functions best if the bone itself is not parented.
Bug report about "Child of" and "transform" constraints failing #29100
"Apply visual transform" fails with IK constraint. #27743
Mirror tool (Object mode) doesn't work for Child-of constraints always #32248
Pivot Constraint is broken currently, doesn't function at all. e.g. #32963
Copy Transforms constraint jumps when changing influence (especially when shear is involved) #34532
Maintain volume constraint behaves wrong ({{GitCommit|48079)
Parenting object with constraint causes tansform ({{GitCommit|45531)
Dependency Graph
The 2.5 spec "animate everything" works, but what's missing is a clean dependency solver to ensure anything you relate gets displayed in real time on changing properties or while posing/animating. Here we collect known issues to solve later.
Animation System
Notes:
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form for strings used for names. Using the' '
form instead may lead to unexpected evaluation results.Todo:
Remove animation data from objects, when all their animation is deleted.Added subscribers: @lichtwerk, @ideasman42
Added subscriber: @christian-clavet
Added subscriber: @BClark
Closing this task, as it is out of date (almost all linked issues are closed, but weren't checked off on this list) and the tasks that don't have an issue linked to them are very vague. It's a mixture of 'notes' and 'things to remember' without being clear about who has to do the remembering.