How to solve this annoying lighting rendering problem?

[xQdcss]

Hi I have some rendering problem with my lighting on my map I can't explain it so I will post some screenshots.I really need help in killing this shit up.





As you can see,the lighting that flows from a wall to another is not smooth at all ! Thanks for your time.

[xQdcss]

*bump* I really need help in resolving this because that's not the only place that renders bad in my map,I have other places too and that stops me from finishing/publishing the map.

[mookie]

The wall at the end of the hall is brighter than the wall next to it because the light hits it at a more direct angle. If you want to get the two of them more similar, add a light that's closer to this end of the hall.

[Armageddon]

If you're talking about the little lines that's a Source problem that can't be fixed on ATi cards. It comes from cutting up the lightmaps, so if your lightmaps are small you'll have a lot more of those lines. Just ignore it.