Channel Shuffle

Color

Rearranges RGBA channels by swapping, duplicating, filling with black/white, or rerouting any channel to any other.

Channel Shuffle lets you reconfigure which data goes into each output channel. For each output channel (Red, Green, Blue, Alpha), you pick a source: any of the input channels, or constant Zero (black) / One (white).

Common uses include swapping channels, isolating a single channel, filling alpha with luminance data, or converting a normal map format.

Parameters

Channel Mapping

RedChoice

Default: Red

Red output source

• RedPass through the original red channel.
• GreenUse the green channel as the red output.
• BlueUse the blue channel as the red output.
• AlphaUse the alpha channel as the red output.
• ZeroFill with 0 (black).
• OneFill with 255 (white).

GreenChoice

Default: Green

Green output source

• RedUse the red channel as the green output.
• GreenPass through the original green channel.
• BlueUse the blue channel as the green output.
• AlphaUse the alpha channel as the green output.
• ZeroFill with 0 (black).
• OneFill with 255 (white).

BlueChoice

Default: Blue

Blue output source

• RedUse the red channel as the blue output.
• GreenUse the green channel as the blue output.
• BluePass through the original blue channel.
• AlphaUse the alpha channel as the blue output.
• ZeroFill with 0 (black).
• OneFill with 255 (white).

AlphaChoice

Default: Alpha

Alpha output source

• RedUse the red channel as the alpha output.
• GreenUse the green channel as the alpha output.
• BlueUse the blue channel as the alpha output.
• AlphaPass through the original alpha channel.
• ZeroFill with 0 (fully transparent).
• OneFill with 255 (fully opaque).

Usage Tips

• Set all outputs to Red to convert to grayscale using only the red channel.
• Swap Red and Blue to convert between RGB and BGR formats.
• Set Alpha source to Zero or One to force fully transparent or fully opaque output.

Related Nodes

• Mask From Image
• Invert
• Levels