Color[XYZ ]

Lets colors and textures whose exposure have to be adjusted be linked.

Exposure[-100.00..100.00]

Linearly darkens or brightens the input by shifting the exposure to the left or right.

Offset[XYZ %]

Linearly darkens or brightens the input by applying an offset, i.e. by adding the given Offset value.

Gamma[0.00..100.00]

Used to modify the gamma curve to adjust the brightness of primarily mid-range colors. If set to 1 the brightness will remain unaffected.