Having issues with UV Unwrap

[Anonymous]

I can not seem to get certain polys on my models to get UV unwrapped correctly, basically when I select say a nut that is on a bolt, or a plastic cap on top of a cylinder I need to unwrap them both separately because they will be different textured materials. I have done it before but it seems not to want to work now. Essentially instead of color mapping, I am trying to UV unwrap the parts separately and then texture them that way but my texturing software picks more than I intended.

Is this the right way to do this, what am I doing wrong, and is color mapping different?

[brentscannell]

Hi @Anonymous

If I understand correctly, you'd like to apply different textures with different UV areas to different areas of the same object? I think you could do this by using a multi-sub-object material with different material IDs assigned to the different areas you want to texture differently, combined with UV Map modifiers per sub-object and use different UV channels for each.