I've also ditched the mathematical approach while trying to remember the lessons learnt.
We'll call our new model Bernie.
Bernie's a happy chap. He's an old model of mine. I've had to render him in Blender because Maya wouldn't play ball with his textures. The lighting settings are similar to Henry's last set up but we've moved away from the symmetrical composition and lighting that Henry was subject to.
Here's Bernie with a slightly yellow key light supported by a blue fill light (at one third intensity) and a barely noticeable back light. Arranging and capturing a catch light proved quite difficult as Bernie wears glasses. This is a broad light shot illuminating the side of the model facing the camera.
Tracking around Bernie and swapping the key and fill lights on the horizontal, Bernie is rendered in a far more dramatic fashion. The back light also comes into play defining his hat, neck, jaw and shoulder. Bernie's features are accentuated with a greater tonal contrast. His glasses reflect some catch light and there is also a suggestion in his left eye.
Exactly the same shot as above but with the lights rotated around Bernie (on the -ve Y axis in Maya terms). This demonstrates an extreme short light. The portion of the model that is most brightly lit is facing away from the camera.
As a demonstration of the dramatic possibilities of lighting, here Bernie is subjected to a low angle key light and a high angle back light which defines his hat and shoulders. This once friendly character takes on the persona of an interrogator, a stalker or... what else?
This was an easier angle for the catch light to take effect. Unfortunately Bernie only comes alive when he's in serial killer mode.
Sorry Bernie, under this lighting the grin only makes it worse...
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