2026-07-27 23:22:53 -07:00
1 changed files with 13 additions and 0 deletions
@@ -108,6 +108,19 @@ static func _dist_to_chain(p: Vector3, chain: PackedVector3Array) -> float:
 ## Drive the helpers. MUST run inside the skeleton's modification pass.
 ##
 ## Two things happen per joint:
 ##
 ##   ROTATION — the helper takes half the child's bend, so no vertex ever blends
 ##   across the full angle.
 ##
 ## Scaling the helper to widen the joint back out was tried and removed. The
 ## geometry is right — a blend across θ thins by cos(θ/2), which is |q.w| — but a
 ## BONE scale is far too blunt an instrument for it: it fattens every vertex on
 ## the helper regardless of whether that vertex was collapsing, which ballooned
 ## parts of the thigh to 167% while the worst-collapsing vertices (which are not
 ## on the helper at all) did not move off 0.83. Per-vertex correction is what
 ## that idea needs, and a bone cannot express it.
 static func update(skeleton: Skeleton3D, driven: Array) -> void:
 	for d in driven:
 		skeleton.set_bone_pose_rotation(d[1],