Afaics, only a single DEG operation node POSE_SPLINE_IK_SOLVER should
be added in this case [ see build_splineik_pose, same is already done
for overlapping IK in build_ik_pose]
rB87b551e83659 is probably related.
ref T82347.
Details
Details
Diff Detail
Diff Detail
- Repository
- rB Blender
Event Timeline
Comment Actions
- Open blend
- Bone.002 has a SplineIK constraint with common_root as the root (Chain Length 3)
- change Bone.001 Chain Length to 2 ( so it also has common_root as the root )
--> Assert
BLI_assert failed: source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:226, add_operation_node(), at '!"Should not happen!"'
| source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc | ||
|---|---|---|
| 121 | This was a brainless copy/paste relict from regular IK | |
Comment Actions
Do you have a simple test file to check the patch? I tried to reproduce the problem by having two Spline IK constraints with overlapping chains, but that doesn't show the error.
This is the file I used:
Comment Actions
In that file, select Bone.007 [the other bone next to Bone.001 having a SplineIK constraint] and change its Chain Length from 4 to 2 [so it corresponds with the Chain Length of 8 of the Bone.001 -- meaning they would end up having the same root]