Use Rectangle to create a closed box shape with 4 control points, you can define the width and length of the box. You can also make the box have rounded corners by changing the fillet example, this will add an extra control point per corner as seen in the pic.

Rectangle Param Description


Length of the box (Z Axis).


Width of the box (X Axis).


How much to round the corners.


Changing any of the parameters above will reset the shape, so if you have created a shape and moved the handles or knots about or manually added or deleted knots those changes will be lost.

Rectangle Class

public class MegaShapeRectangle : MegaShape
    public float   length;
    public float   width;
    public float   fillet;