How can I achieve that if I have ~500 induvidual objects Allso notice how in this Image you can't see the wireframe through objects, this is what I want to do. I can try aplying black material to everything but how can I render it showing both wireframe and black material?
I folowed the instructions from materials you linked me and asigned black material to all objects, duplicated everything and changed the material of the coppy to wireframe. When I go to rendered wiew it seems to look just fine:
Wire frame is a mix of transparent and emission with factor of wireframe if it helps...