Two 3D perfect loops made in Blender for a animation class at my university. Everything in this is procedurally generated and animated. For the shader I used a free shader pack provided by Kristof Dedene, check his stuff out on YouTube.
No. 1
No. 2
Scene setup for no2.
Scene suetup for no1. Lights are parented to an empty that rotates 260 on all axes.