
For example, at 0°, as the upper arm crosses the vertical axis, either pointing up or down, the bend direction will change.
Elbow Flip Threshold controls when the elbow bend will reverse direction, based on the direction that the upper arm (from shoulder to elbow) is pointing relative to the vertical axis. Auto Arm Bend controls if automatic bending occurs. 0% allows bend direction to change, whereas higher values restrict bend direction more.
Bend Strength controls how much to constrain the bend direction. Lower values restrict stretching, whereas higher values produce very stretchy arms. This setting works in combination with the force being used to move the hand (for example, a Draggable wrist). Stretchiness controls how much the arms can stretch beyond their length at their rest pose. Apply to choose whether you want to apply IK on Arms, Legs, or both.
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