August 18, 2012, 06:49:28 pm
Yes, exactly. In SketchUp, you do not really call the materials "diffuse" as there is only one material so you need not make the difference. But essentially right: the "real colour" version is usually called this way when there are more "maps".
Bumps could be generated with greyscale bump maps, too. Normal maps however (theoretically) can contain more info (if I am not mistaken). There can be other maps as displacement (not in Lumion) or specular maps for various purposes. Lumion only uses the normal maps.