Editing light levels inside a house?

[timrath]

Is there a way to mod the light levels inside a specific type of house? I always found that the interior walls of generic houses are too brightly lit. It makes all the objects inside them look dark and dull. 
Are the wall textures themselves so bright, or do they emit ambient light?

 

[Sytner]

Is there a way to mod the light levels inside a specific type of house? I always found that the interior walls of generic houses are too brightly lit. It makes all the objects inside them look dark and dull. 
Are the wall textures themselves so bright, or do they emit ambient light?

Interiors have pre-baked lighting. You could darken them by writing a script to multiply the lighting values of all vertices by some value in [0,1). Alternatively, darken the texture itself - that's more of a hack though since you're modifying all uses of that texture, possibly with unwanted results.