Animation - Intersecting Planes

I am trying to create an animation where two intersecting planes needs to be highlighted, either by color/material or with a line. Here is a short video of the animation. I have the webbing in the spinning circle transparent, and I may adjust the % so that it is more translucent/semitransparent, however, I still can’t seem to get it to show a line.

scan_lines_01_small.avi (4.5 MB)

Don’t have time to look at your file but you can try the AO node in 2.8, or the bevel node, they will output a value of 1 whenever two surfaces are close together - wire that into a color mix node and you’ll get your effect.

Thanks Hardriscus, I will give that a try.