I thought that if I had to show a carousel of lights like the version one to my clients, they would get a headache just trying to choose the right light intensity, not to mention the pain in the neck with the turning effects. So I started to look for other techniques and tried GLSL and Real time rendering to change on demand. With IPO animation and the light intensity avoiding the turning effect, see the result:
There are many great software that allow us to calculate the light intensity and its environment. This studio can take us a while creating material, calculating light position and, our unforgettable lover, time machine calculation before finding our first viable sketch. But, can Blender give us some kind of prototype rendering scene to solve that?
Let's try with some thing very easy: a cube, a plane, several lights and an empty. Then, an animation or a game engine trick ...