Motionbuilder Tutorial - 18: Spline Ik Instant

In the , drag the starting bone into the First Joint field and the final bone into the End Joint field. Create Control Nodes :

: Perfect for automating the physics-like movement of hair, whips, or mechanical cables. Motionbuilder Tutorial - 18: Spline IK Motionbuilder Tutorial - 18: Spline IK

: Ideal for any appendage that needs to deform in a serpent-like or "gooey" manner, which standard bipedal rigs can't handle. In the , drag the starting bone into

In MotionBuilder Tutorial - 18: Spline IK , you will learn how to use to animate flexible, multi-joint structures like tails, tentacles, and ropes . This specialized constraint aligns a skeleton joint chain along a curve, providing a smoother and more predictable way to achieve complex, aesthetically pleasing shapes than traditional FK or IK rigs. Core Workflow for Spline IK In MotionBuilder Tutorial - 18: Spline IK ,

: 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.