Quote: "The fps increased from 18 to 28 ( still too low ) The hidden terrain unfortunately creates a strange effect , as fogged glasses (
or drunk character)"
Yes I've mentioned this before, removing terrain although a good speed boost seems to affect shadow and lighting. I've told the devs before, but not seen any movement on this one as yet.
Have you disabled water effects as well? You can do it in editor or script. I prefer script generally as you can change as and when you want. Also you can try altering your setup to reduce visuals down a little.
reflectionrendersize can be reduced if you have water.
dividetexturesize can be increased to reduce overall texture size ( a good way to test your textures are causing issues). 1 is default and does not alter them, 2 divides by 2 and so on...
Also, don't use the default camera range, it's way higher than needed for an indoor scene. Try to get it under 10 and you should have a significant boost.
SPECS: Q6600 CPU. Nvidia 660GTX. 8 Gig Memory. Win 7.