I'm trying to create a ribbon with two twists in it. I've got a basic setup using a sweep nurb, sweeping a rectangle along a spline. However, I'm having trouble controlling the angles of the curves. Is there a way to have greater control over how the sweep follows the spline? Is this the correct approach, or is there a better method? I've attached a pic of the 2d artwork I've been supplied. I can provide more details if useful!
you could try making a copy of your sweep spline and putting them both in a Loft - one spline is one side of the ribbon the other spline is the other side... or use the copied spline in your sweep as a rail spline to control the direction of the sweep