I wanted to see where I would get with the ribbon approach using Unreal out of the box.
Here is what I got:
setup vise it's pretty much this: https://vimeo.com/133553614
Just more random positions for the Ribbon particles and a hack for the color:
I am using a world space gradient in the material to tint the particles, since no visual particle lives from bottom to top and the ribbon emitter can't inherit color from the emitter driving it.
@5919 sorry for hijacking your thread, just couldn't sit tight and wait for your explanation any longer Visually I still prefer your solution, so looking forward to see your breakdown!