Thanks for the link - I’ve had a quick look. As I’ve said, I try to avoid doing it this way as I would have to duplicate a great deal of materials (I assume you just switch the materials as they do it in the content examples), i.e creating a highlight material for each normal material. I was hoping there is a more generic/efficient approach like some kind of material “overlay” or something.
By the way, I’m using this for all kinds of meshes (skeletal, skeletal rigid, static, etc)