Hide Marker
There are special meshes, that function as markers (Prison, Teleport and auch). These are rendered normally in the CS, but hidden in MW. We need a way to identify them and then exclude them from the rendering process.
(RM-36 from redmine: created on 2011-08-06 by Lukasz Gromanowski, , closed on 2012-09-13 by scrawl .)