Tutorial: Wallbugs explained.

On right side is a brush with a wallbug. When you're doing a good run and hit to one of these it's not nice. On left there is a cool block which is smooth.



http://img49.imageshack.us/img49/4131/47340485hk7.png


What is a wallbug?

When you're compiling your map, the compiler adds something like 1 unit thick invisible brush _around_ your every brush. So what? What does this matter? Let me explain with a picture, while 2 brushes are really near, they might do this: (VIS is da compile thingy)

http://img528.imageshack.us/img528/4308/wallbugbt7.jpg

You might want to see my example map, link at the bottom.

How to fix it?

When you've already done it, it's pretty hard to fix it anymore, anyway, you can try to do a clip brush around the wallbug to get it smoother.

How to prevent wallbugs?

Study vertex tool before doing a map with it. It's a powerful tool but can be really bad if you use it incorrectly. Some people just use clip tool, you don't usually get wallbugs with it. Anyway, here's a good way to do cool walls without getting wallbugs; Make brushes, with 5 edges (get the additional edge with clipping tool or just do a cylinder). Then vertex tool the additional edge anyway you want, you wont get any wallbugs, example pics:

How to make 5 edges to your brush:
http://img261.imageshack.us/img261/8718/5edgeff2.png

Red: Wallbug (Doesn't matter because you can't hit it) Green: Smooth http://img505.imageshack.us/img505/1778/60253273jc0.png

Of course this isn't the only wallbug there, HL is still being studied and we find new bugs all the time.

Example map: http://rapidshare.com/files/47933106/example.rar.html
Hammershot of the map: http://img104.imageshack.us/img104/2213/hammershotig8.png


If you have some news about wallbugs just contact me @ irc.quakenet.org under the nickname Flibo.






[ Edited ]

How do you make the sexy one :( You have to clip? cus I dont know how to do so it ISNT a line where the edge is :( help please :D

You'd better thank Flibo for his neat tutorial.
Otherwise you'd never had asked that question and I'd never had answered it ;)

n1 :)