Gamma correction

BeginnerArtistProgrammer All post effect calculations are made in a linear space (ie RGB space). This means doubling the color value of a pixel doubles the light it emits. This guarantees correct lighting calculations. gamma correction to transform our image from a linear space to a sRGB space (or gamma space). A buffer in the sRGB space displays correctly on a monitor or a TV screen. Non-gamma-corrected images have dark areas appear darker than they’re supposed to.

Properties

See also

• Gamma correction (Wikipedia)
• Film grain
• ToneMap
• Vignetting
• Custom color transforms