Changing material of Cloth mesh mid simulation

[ISurg]

Hello there.
I'm doing cloth simulation (a lot of separate cloth meshes) and I want to change colours of some cloth pieces when they achieve specific velocity. However I'm not sure, how should I go about this, since the cloth meshes aren't particles themselves.

[d4rk3lf]

Have you tried with Tymesher?
Maybe it's possible with it.

Another idea is that you do it in post.
Render particles (as a small boxes), as a separate pass, then blur it, and then subtract it (with track mate) with alpha of your cloth render.