Deus Ex Alpha

Hello, i did a mover (door) that contains a substracted space with added glass brush inside.
Evrything works fine but, unfortunatley when (in game) I look on at the door i can see throught it while looking at it.( i mean not only though the glass; but the door also desapear when looking in the glass and on one of the sides of the door).
Couldnt find an answer in Tacks tutorial, and some other forums

Yeah, it's a common problem, sort of a bug in the engine.

To avoid that hole, instead of a standard brush you should use a sheet (it's no problem if the sheet has a different form than the hole, it won't cause BSP problems).

But it causes another problem, sheets don't have density, so you can walk through them. To solve it you've gotta create two invisible collision hulls (invisible brushes) behind and in front of the sheet. They shouldn't collide any visible brush, so they gotta be a few units smaller.

To see an illustration, open any original Deus Ex map.

wow thanks alot, its harder that i thought. gona try it now...

You could also make the glass smaller, and attach it in movement properties. That way it can still shatter, that is if you want to retain that effect.