Beyond Channel Packer

Channel-pack textures directly in Blender’s Image Editor:

• RGB + Alpha: combine an RGB image + optional alpha mask into an RGBA output.
• 4-Channel (R+G+B+A): combine four separate images into RGBA (each image provides one channel).
• Split Channels: split a 3- or 4-channel image into separate channel images and save them.

Issues / Support

Report bugs and request features here: https://github.com/tdw46/BeyondChannelPacker/issues

Open The UI

• Go to the Image Editor.
• Open the N-panel (right sidebar) → Channel Packer tab → Beyond Channel Packer.

Mode: RGB + Alpha

• RGB: required.
• Alpha (Optional): if provided, it is flattened to one greyscale channel and used as output alpha.
• Output is saved to Save To and shown in the Image Editor.

Mode: 4-Channel (R+G+B+A)

• Provide any/all of Red, Green, Blue, Alpha images.
  • Missing color channels default to 0.0 (black).
  • Missing alpha defaults to 1.0 (opaque).
• Each channel input is treated as greyscale (if it’s RGBA, the greyscale comes from the “best” channel available for that image).

Advanced Options (bottom, collapsed)

• Auto Scale to Largest: if inputs differ in size but have similar aspect ratios, they are resampled to the largest image.
• Aspect Tolerance: allowed aspect ratio difference for auto scaling.
• Gamma / Contrast / Brightness: optional output tuning for the 4-channel mode.

Mode: Split Channels

• Source: one image with 3 channels (RGB) or 4 channels (RGBA).
• Output Names:
  • Defaults to <source>_red, <source>_green, <source>_blue, <source>_alpha.
  • The Alpha name field only appears when the source has an alpha channel.
• Saves individual greyscale images (Non-Color) to the Save To folder with the chosen names.