The following describes the basic options in the Muscle Spline window:

Name

Specifies a name to use for the spline and all related objects. This should be unique to avoid naming conflicts.

Num Insertion Controls & Type

Sets how many control objects/points are created for the spline. Each point has a tangent length and jiggle controls. You can also select the type of shape or node to be used as a control object.

Num Driven & Type

Sets how many objects are ‘stuck’ on the spline curve. These objects are driven by the curve and move/rotate as the curve moves. Typically, joints are used since you can then use them to do skinning, but you can select other objects as well.

Constrain Mid Controls

If on, all of the middle control objects are automatically constrained to be positioned and aimed the right way between the first and last created controls. You still have manual control over each of them. If off, the controls are not constrained.

Create Muscle Spline Rig

When ready, click this button to create a spline setup with the options you have selected.