CoronaColorCorrect

updated script

here is an updated script

http://www.scriptspot.com/3ds-max/scripts/coronacolorcorrection-auto

i've added some randomization to each parameter and fix the ability to set value for only selected material slot, you can now select the stuff you need to tweak ( Diffuse, Bump, Roughness, Translucency, Self Illumination) then you can add some corona color correct with the values you want, you can also change any parameter you need afterward.

For example you can add some corona color correct on color and bump with default value, then select only diffuse and choose a random diffuse hue , then you select the bump and set saturation at -1 and adjust contrast or gamma to your needs.

The randomize part will set a random value to the existing material so all objects with the assigned material will get a new color or new bump value, if you need to get each object to have a random color then you can use my other script ( corona material automator ) to create one material by objects in selection in the bottom part of the script, then the random values will be scattered across selected object materials.