This is an overview of how you can create splines inside Notch by a couple of methods: 1) manually, using null objects, 2) procedurally using moving 3d shapes, and finally 3) via baked animations from another 3d package (in my case Maya)
Index:
0:00 - Introduction
0:20 - Example
1:43 - Creating a spline manually, using nulls
2:28 - Creating a spline using Shape3d and math nodes
4:18 - Use Combiner node to add variety and randomness
6:00 - Multiple extruded splines to add variety
8:00 - Material setup
8:45