Texture channel packing tool allows to pack channels directly in Unreal Editor, without using other software.

Texture channel packing is a technique used to store multiple images in a single texture. This is done by assigning each image to a different channel of the texture. For example you can save the base color in R,G,B channels and roughness in Alpha, or store the normal map in R,G, roughness in B and specular in Alpha channel. Texture channel packing is commonly used in Unreal.

Video | Documentation

Example Use Cases:

• Pack: combine textures in 1 texture asset (example: AO, Roughness, Metallic textures->ORM)
• Repack: change the order of channels. (example: ORM -> RMO)
• Unpack: extract channels into separate assets (ORM -> AO, Roughness, Metallic texture assets)
• and other operations that rely on copying of texture channels

Features:

• Extract channels from any texture2d asset and pack them into a new texture
• Define output texture settings: compression, mip maps, srgb, filtering, etc.
• Can create multiple textures in one go
• Save presets for your packing scenarios
• Input patterns allow to drag and drop multiple input textures at once