hello i was making a crappy house for gmod and it wont make a perfect collision.. here is the link for the simple house i made and plese tell me how can i fix it
http://www.mediafire.com/?619yjp9w485j57r
nevermind i fixed it. the broblem was that to make the ground on the first floor i used the plane shape NEVERR USE IT OR IT WILL NOT MAKE COLLISIONS! so use box shape always!