New Depsgraph: Auto-IK doesn't work. #46320
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Reference: blender/blender#46320
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Blender 2.76-rc2
2eb0c99Ubuntu 14.04 64x, nVidia GT620
Auto-IK doesn't work on new DEPSGRAPH
Open the file with new depsgraph and try to move the bone selected. You won't can.
With old depsgraph, it works.
79_depsgraph-auto-ik.blend
Changed status to: 'Open'
Added subscriber: @MarioSottile
Added subscriber: @Blendify
Added subscriber: @Sergey
Can confirm the issue. Will look into it shortly.
Added subscribers: @JoshuaLeung, @ideasman42
Developer's note:
The issue is caused by transform tool temporary affecting on the pose constraints, which actually changes the way how pose is to be evaluated. Here's a patch which makes sure dependency graph is always up-to-date after such modifications:
{{P283}}
Not sure if there's better approach to this problem. @JoshuaLeung, @ideasman42, any ideas?
@Sergey, seems correct API usage and fine for master.
Note - calling into DAG directly seems a bit low level (we could have a version of
BKE_pose_tag_recalcfor this).@ideasman42, we can't only tag pose for recalc, nodes in depsgraph are to be updated to mimic updated armature settings. In theory it's possible to perform partial depsgraph topology update, but in practice it's quite tricky to do correct.
Sorry for the spam.
On another hand on a production scene full relations update could be rather too much costly to be performed on transform. Maybe there's some better trick to do.
This issue was referenced by
03e8202b7bChanged status from 'Open' to: 'Resolved'