NEW IN R20
Lets colors and textures whose exposure have to be adjusted be linked.
Linearly darkens or brightens the input by shifting the exposure to the left or right.
Linearly darkens or brightens the input by applying an offset, i.e. by adding the given Offset value.
Used to modify the gamma curve to adjust the brightness of primarily mid-range colors. If set to 1 the brightness will remain unaffected.