How do you make the inside color of a cup different from the outside? I want to change the color of the interior cup but I can't seem to do it without the image texture being deleted when I attempt to transition from image texture to color. Even after the material gets duplicated.
You could go to edit mode and select all the faces inside the cup that you want in a different color. Change to vertex mode and make the selected vertices a vertex group. Then add a new material for the cup and assign this material to the vertex group