I am trying to texture a ceiling. For some reason it is failing every time. It is asking me to increase the maximal texture count or maximal texture resolution but I cannot enter anything into these options in the settings? Any ideas?
Also in exporting this ceiling into Sketchfab it is forming a solid around the outside making it look very odd!
this means that RC cannot create texture with the defined unwrap and texturing parameters. Please unwrap your model first and in the Unwrap tool try to raise the texture resolution or textures count as suggested in the error message. You can also try to use different unwrapping style, for example Fixed texel size.
Can you please share a screenshot of the Sketchfab upload issue?