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Layers are applied from the bottom to the top, where the bottom is the background (BG) and the top is the foreground (FG) of the composite.

Opacity – Controls the weight of the layer. A value of 0 means no effect and a value of 1.0 means full effect.

Blend Mode – Specifies how the layer blends with the result from all layers below it.

 

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When adding a new layer, it is placed on top of the stack and it is considered the foreground (FG).

The result of all layers below it is considered the background (BG). Layers are applied from the bottom to the top.

Where darker and lighter pixels are mentioned below, it is in relation to mid-grey.

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Blend Mode*Description
OverwriteDisplays the current layer (FG) on top of all layers (BG) without blending. This is the default.
AverageThe average of the current layer (FG) and the result from the layers below it (BG).
AddAdds the FG to the BG.
SubtractSubtracts the FG from the BG.
DarkenCompares the FG to the BG and takes the darker pixel values of the two.
MultiplyMultiplies the FG by the BG.
Color BurnThe color of the FG is applied to darker pixels in the BG.
Linear BurnSame as Color Burn but with less contrast.
LightenCompares the FG to the BG and takes the lighter of the two.
ScreenMakes both light and dark areas lighter.
Pin LightReplaces the BG colors depending on the brightness of the FG color.
If the FG color is lighter than mid-gray, BG colors darker than the FG color are replaced and vice versa.
DifferenceCompares the pixels in the BG and FG and subtracts the darker pixels from the brighter ones.
ExclusionSame as Difference but with less contrast.
HueUses the hue from the FG , while the value and saturation are taken from the BG.
SaturationUses the saturation from the FG, while the value and hue are taken from the BG.
ColorUses the hue and saturation from the FG, while the value is taken from the BG.
ValueUses the value from the FG, while the hue and saturation are taken from the BG.
Hard Mix (8bit)Adds the FG to the BG and for each color component returns a value of 255 if the result is 255 or greater, or returns 0 if the result is less than 255.
Color Dodge (8bit)The color of the FG is applied to lighter pixels in the BG.
Linear Dodge (8bit)Same as Color Dodge but with less contrast.
Spotlight (8bit)Same as Multiply, but with twice the brightness.
Spotlight Blend (8bit)Same as Spotlight, but additionally brightens the BG.
Overlay (8bit)Darker pixels become darker where the BG is dark and brighter pixels become brighter where the BG is bright.
Soft Light (8bit)Darker pixels become darker where the FG is dark and brighter pixels become brighter where the FG is bright.
Hard Light (8bit)Spotlight is applied to pixels where the FG is dark and Screen is applied to pixels where the FG is bright.

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The Display Correction layer specifies the color space, in which the image is displayed. You can choose between sRGB, Gamma 2.2, OCIO and ICC or select None to return to a linear display.

The ICC correction allows you to apply an ICC profile to the image, so that (for example) it matches the appearance of the image in Adobe Photoshop. This is a display correction that is only applied when the image is viewed in the frame buffer. It is not applied when the image is saved to a file.

The OCIO correction allows you to apply color corrections from an .ocio color profile to image colors. When this correction is enabled and no specific .ocio profile is specified, it attempts to read the OCIO environment variable and apply the profile specified in it.

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Normally you would specify the ICC file for your calibrated monitor here. Programs like Photoshop display images using your (primary) monitor's ICC profile automatically. However (at least for the moment), Cinema 4D is not a color-managed application and you must manually load the monitor ICC profile into the V-Ray frame buffer in order to match the appearance of your images in Photoshop.

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The Display Correction layer cannot be removed or reordered. It is always applied on top of all other layers, as it specifies the display color space of the resulting image or composite in the frame buffer.

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