PixelLightHDRLimit=4.000000 ; Can use to prevent some things from becoming too bright. The default value is 2.0. Can be set in the range 1.0 - 4.0. When limiting, uses scaling that preserves color.
PixelLighting=True ; Test for your self
PixelLightHDRClamp=False ; Don't clamp light color components to 1.0.
PixelLightHDR=True ; Test
PixelLightsMax=4 ; Generally best to leave set to the maximum of 4.
NoAATiles=True ; Test
UseFragmentProgram=True ; Test
FragmentProgramEpsilon=True ;avoid performance problems on GeForce 6 and 7 series cards