Set Ambient

Syntax:  set ambient {<value>}

The RasMol ambient parameter is used to control the amount of ambient (or surrounding) light in the scene. The ambient value must be between 0 and 100 that controls the percentage intensity of the darkest shade of an object. For a solid object, this is the intensity of surfaces facing away from the light source or in shadow. For depth-cued objects this is the intensity of objects furthest from the viewer.

This parameter is commonly used to correct for monitors with different "gamma values" (brightness), to change how light or dark a hardcopy image appears when printed or to alter the feeling of depth for wireframe or ribbon representations.