Driving bone translate from bone scale is broken in 2.8 #54688

New Issue

Sergey Sharybin · 2018-04-17T11:32:17+02:00

Sergey Sharybin commented

2018-04-17 11:32:17 +02:00

System Information

All operation systems.

Blender Version

Broken: Blender 2.8 branch, be3392e0f9
Worked: master

Short description of error

Driving bone translation from bone scale is broken in 2.8, especially with copy-on-write enabled.

Exact steps for others to reproduce the error

Open deg_driver_bone_loc_from_scale.blend from our regression tests SVN and tweak scale X.

The issue here is that copy-on-write will copy pose over, which rolls old values for every bone->pose_mat. In master it worked, but mostly with some lag.

Attached file solves non-CoW case, but CoW case is still broken. bone_scale_to_translate_driver.patch

Still need some work to make it to work, but will not consider this a stopper for CoW, since it's really a corner case..

**System Information** All operation systems. **Blender Version** Broken: Blender 2.8 branch, be3392e0f9 Worked: master **Short description of error** Driving bone translation from bone scale is broken in 2.8, especially with copy-on-write enabled. **Exact steps for others to reproduce the error** Open deg_driver_bone_loc_from_scale.blend from our regression tests SVN and tweak scale X. The issue here is that copy-on-write will copy pose over, which rolls old values for every `bone->pose_mat`. In master it worked, but mostly with some lag. Attached file solves non-CoW case, but CoW case is still broken. [bone_scale_to_translate_driver.patch](https://archive.blender.org/developer/F2762208/bone_scale_to_translate_driver.patch) Still need some work to make it to work, but will not consider this a stopper for CoW, since it's really a corner case..

Sergey Sharybin commented

2018-04-17 11:32:17 +02:00

Added subscriber: @Sergey

Sergey Sharybin self-assigned this 2018-04-17 11:32:27 +02:00

Sergey Sharybin commented

2019-01-24 09:57:48 +01:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2019-01-24 09:57:48 +01:00

Sergey Sharybin commented

2019-01-24 09:57:48 +01:00

With be32168eb4 this works same as 2.79. Would be cool to solve this dependency somehow, but will not consider this a bug.

With be32168eb4 this works same as 2.79. Would be cool to solve this dependency somehow, but will not consider this a bug.

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Driving bone translate from bone scale is broken in 2.8 #54688