Bake Channels

Channel Baking the layer is important if your model will be used in other software. That's because other software can't read Blender's node shaders. Baking channels with Ucupaint is easy, you can go to the Ucupaint special menu. It can be found on the gear icon under the Material Panel. Just click bake all channels and set the right configuration. The baking process then begins.

The baked textures are automatically packed if you save the blend file, but you can also save them to a directory of your choice, as demonstrated in the video below.

The Baking process is a non-destructive workflow, you can still go back and edit your texture layer by layer using this toggle button.