I have produced an indent in a cube using a UV sphere and a Boolean modifier. The cubes white and the sphere is black. But when I try to colour the indent it colours the whole cube. Has anyone got any ideas please
You need to have both materials on the Object with the boolean modifier (but of course only one of those is assigned to that mesh). Here the blue cube (the cube with the boolean modifier) has both materials: the blue and the red material. The red cube only has the red material.