color coded picking

[DaveLloyd]

Thanks Riven! I don't have many names - typically only one or two per object (and that might be 3-5000 tris) with a scene with maybe 100 objects max (I'd read that lots of names could be a problem). But if the selection rendering itself is slow that would explain much. I'll have to try redoing the selection code to use colour picking.

[Riven]

Just pick only once per second, if you can get away with it.