Unwrapping tileable model for use with seamless textures I have simple model (let's name it 'cube'). I also have a collection of seamless PBR materials (represented by square diffuse/metallic/roughness/AO/normal maps).

Goal: apply such seamless material to the top face of this 'cube'.
How to unwrap this model to reach this goal without editing/scaling textures?

Should I use multiple UV maps (one for top part of this 'cube' and one for other sides)?

Edit: This particular model eventually will be exported to Unreal Engine (and it will be used with already prepared PBR materials). So approaches that use Blender's materials (= Blender's rendering system) in my case won't work.
No need to use a UV map.

Use Generated coordinates and a Box projection for the texture.
And if you want the texture only on one face, just assign a different material to others.

Use Generated coordinates and a Box projection for the seamless texture.



Assign different materials to different faces.