This page provides information about the Color Correction node in V-Ray for Cinema 4D.
Overview
Properties
Channels
Red – Assigns the red channel.
Green – Assigns the green channel.
Blue – Assigns the blue channel.
Alpha – Assigns the alpha channel.
Redinv – Assigns the inverse value of the red channel.
Greeninv – Assigns the inverse value of the green channel.
Blueinv – Assigns the inverse value of the blue channel.
Alphainv – Assigns the inverse value of the alpha channel.
Monochrome – Sets the channel to be monochrome (grayscale).
One – Assigns the value 1 (or the highest possible value) to the channel. For example, Rewire Red set to One gets the red channel a value of 255 (RGB, 0 to 255).
Zero – Assigns the value 0 (or the lowest possible value) to the channel. For example, Rewire Red set to Zero gets the red channel a value of 0 (RGB, 0 to 255).
Color
Hue Shift – Specifies a value for the adjustment of the current color hue.
Saturation – Specifies a value for the saturation or desaturation of colors. Negative values desaturate.
Hue Tint – Specifies a color that is used to tint the current colors.
Tint Strength – Adjusts the strength of the Hue Tint.
Lightness
Lightness Mode – Specifies the lightness mode that is used. You can choose between Standard and Advanced mode.
Brightness – Adjusts the correction of the color multiplier.
Contrast – Adjusts the correction of color contrast.
Exposure Mode – Specifies the exposure method.
Gain – In this mode, the Brightness value is a simple multiplier for the input colors.
F-Stops – In this mode, the Brightness value multiplies the color intensity with photographic F-stop exposure. Increasing the Brightness by one doubles the brightness, the same as increasing the Gain by 2. For example, this mode's input value of 1.0 and Brightness of 0.0 equals 1.0 (i.e., no brightness correction). Then, Brightness 1.0 corrects the input of 1.0 to equal 2, Brightness 2.0 corrects the input of 1.0 to equal 4.0, Brightness 3.0 corrects the input of 1.0 to equal 8.0, and so on. The input is multiplied by 2 to the power of the brightness value in this mode (<input> * 2 ^ <F-Stop Brightness>).
Printer Lights – When set with the same value as the Printer Lights Per Stop parameter is set, it doubles the luminance.
Brightness – Affects the brightness of the input colors based on the Exposure Mode.
Gamma / Contrast – Determines a float value for the gamma and contrast multipliers. Increasing gamma decreases the contrast.
Base – The base value for Gamma correction. Pixel values equal to the Base are not affected. This can be useful when gamma-correcting a texture without changing certain luminance levels.
Offset – Adds a uniform offset to all pixel values.
Use Red/ Green/ Blue – When enabled, uses the corresponding component for the advanced RGB parameters.
RGB Brightness – Adjusts the brightness of the RGB channels.
RGB Contrast – Same as Gamma/Contrast, but for the individual R/G/B channels.
RGB Base – Same as Base, but controls which pixel values in the individual R/G/B channels are unaffected by the RGB Contrast.
RGB Offset – Same as Offset, but adds a uniform offset to the individual R/G/B channels.
Printer Lights Per Stop – When Printer Lights Exposure Mode is used, this value specifies how many printer lights are equal to one f-stop, doubling or halving the brightness.
