toLinearSpace
If rendering in linear space, first convert the values to linear space by rising to the power 2.2
If rendering in linear space, first convert the gray scaled values to linear space by rising to the power 2.2
If rendering in linear space, first convert the values to linear space by rising to the power 2.2
If rendering in linear space, first convert the gray scaled values to linear space by rising to the power 2.2