@ le_unam Not sure what your saying. But just to show you can climb stairs. http://www.shrewballooba.co.uk/blog/wp-content/uploads/2010/12/BSPtest.swf
same model just sides filled in. Actually got the other model to generate without errors, for some strange reason when Maya exported it filled the top step inner face. Athough still cant walk under or over. Meh was only playing ;)
