what are some methods for controlling screen brightness?
i'm using DX9.0c fixed function pipeline.
all lights are diffuse only, no ambient, and 1.0,1.0,1.0 specular.
world ambient is 255,255,255
so ambient, specular and emissive are controlled by materials only.
all materials have some diffuse.
to increase brightness, i multiply ambient, diffuse, specular, and emissive in all materials by a "brightness multiplier" of 1x to 50x.
what other methods are there?
gamma ramp? this seems to be geared more towards color correction.