Mitchi Slafford

First thx for your reply but, no i am not able to walk though the hole... thats the point confusing me it seems like a invisible wall/collision. Btw. i am working with cinema 4D R12, maybe there's a trick i dont know or i have to pay attention to? EDIT: This Mesh is made out of one object, is this the fault, cause i just cutted the polygons out and closed the open plains

Hi all, i have a problem while building some walls for a house. Some of those shall have a doorframe, theres my problem how can i make that your are able walk through the frame but not through the wall? here's an example http://img807.imageshack.us/img807/1613/wand001.png Thanking all for their help :)