You go about it basically the same way as when you do zenithal, or overhead, lighting, but you push the contrast between light and dark to the extreme.
- You decide a direction of lighting and stick to that. It\'s important to have a consistent direction so that different areas seem to be lit by the same light source. Of course, you\'ll use the same direction of lighting when you do all the other shading and highlighting too.
- Consider how light from that direction would be reflected on each surface you\'re painting. Basically, light will be reflected so that the angle between the surface and the reflected light is the same as the angle between the surface and the incoming light.
The reflected light should have the direction you most regularly will look at the mini from. So, those areas that will reflect light from your chosen light source so that the reflected light meets the eye of the viewer will be bright. Those that don\'t will be dark.
- Don\'t take the theory too seriously, or you will be spending all eternity calculating exactly where to put the highlights!

After a while you\'ll get a fairly good intuition about these things and you\'ll place shadows and highlights fairly correctly almost without thinking. This is painting, for fun, not rocket science!
- You will need to stretch the theory a bit, and do some cheating to make the miniature viewable from all directions. A good help is to hold the miniature under a strong light, placed so that the lighting direction matches the one you\'ve chosen, and paint the highlights where you see them on the mini. Then turn the mini a bit sideways and do the same. Continue this way until you have gone the full circle. Sometimes you may have to highlight areas that shouldn\'t be highlighted according to the theory, because it would look daft otherwise. In these cases, what looks good is the importance, not the theory! A pot helmet is a good example. According to the theory it would be dark at the very top if you look at it from the front or side, since the light would be reflected back upwards there. But it would look strange to have a dark spot in the middle of the helmet, so it\'s better to highlight the entire upwards facing part of the helmet.
- Remember, this principle is NOT just for NMM, but for all highlighting. You just push things to its extreme with NMM to get the metallic impression.
Hope this helps.
