i read the lighting tuturial here and i'm still not really sure what i need to do. I want to make my sectors dark and my hallways to be dim(like a long hallway without lights would look),but i cant figure out how to adjust the lights, i tried the calculate lighting command and it just made everything black, what do i need to do?

You have to be sure to have the light range, the circle around a light, to hit a vertice, otherwise it won't light up.

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True life shimmers with the light of diamonds.
A fake life is as black as coal.

Lighting requires a lot of trial and error. Try only calculating lighting for one Layer at a time. Also, I think you should wait until all of the architecture and lighting are done before you calculate lighting because lighting depends entirely on vertices. If a light hits a vertex, it will show up on that surface.

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Dead Reckoning and Dead Reckoning 2

i dont want to add any lights i just want to lower the lighting or darken the sector.

i'll up load a pic so you can see what exactly i'm trying to do.

http://www.massassi.net/ec/images/1282.jpg/

see how its darker by the door but lighter on the next sector. how do i lower the contrast level or brightness to match the darker sector?

Bring up the item editor for the sector (select the sector and hit enter). Mess with the extra light setting for the sector. 0 is no light and 10 is fully lit. Make sure you use the calculate lighting command after you make the changes.

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"Sometimes nothing can be a real cool hand."
Have Lightsaber Will Travel