Rainbow Animation

Above is the textures I used to for the rainbow animation, which was done by animating along a curve. Its was done with surfaces then converted to a poly as you cant use the extrude under the polygon tabs. The hardest part was getting the spacing in the aches correct so its doesn't look odd.

This was the tutorial that I looked at to achieve the rainbow.

http://www.wonderhowto.com/how-to/video/how-to-extrude-a-surface-along-an-animated-curve-in-maya-248996/