Maybe this could be in Image of the day, but i think this thing isnt that good. So. I am a hobbyst programmer, making games and stuff in my free time for free. I have a little game as you se in my signature. I've put some cool programmer art in it but I was too lazy to make proper LOD for every building. The only thing I needed was to know what are inside and outside polys, and what lines are windows, so i can cull out the inside, because it is usually dark. I didnt want to do this by hand so I wrote this little program: How do you like it?