Drag the from the Asset Browser’s Constraints folder into the viewport. Define the Chain :
To set up a functional Spline IK system, follow these primary steps as detailed by Autodesk Help : Motionbuilder Tutorial - 18: Spline IK
: Perfect for automating the physics-like movement of hair, whips, or mechanical cables. Motionbuilder Tutorial - 18: Spline IK Drag the from the Asset Browser’s Constraints folder
: You can adjust the Control node twist axis , Reverse twist , and Twist interpolation settings to manage how the skeleton rotates along its length as the curve bends. In the , drag the starting bone into
In the , drag the starting bone into the First Joint field and the final bone into the End Joint field. Create Control Nodes :
Enable and click Snap to activate the constraint and bind the bones to the curve. Advanced Control Features