An old friend called me today needing some help for a project that's due on Monday. His motion guy quit and he asked me to sort this out for him. I need to find out how to create the below effect in AE. I know it's done with the echo effect but I don't know how get the color.
The color also changes as the clip progesses. Very 80s : )
I'd probably start with CC Time Blend FX. See this for a start:
(There are certainly other ways, and maybe some are better, but that's my first thought.)
The contours being that sharp, they probably truly rotoscoped the boarder and then used the outlines to create the rainbow fill.... Surely there's some Echo or Time blend involved somewhere, but I don't think they are applied directly. If you have no time to do all the masking, the Time Difference effect might provide a poor man's way of doing a quick key/ mask...