Sorry about hte post not being too clear, Alex. I try to proofread my posts prior to posting, but I guess this is limited by how well I can actually proofread. What you said is similar to things I was thinking of. There were some things I hadn't considered like with the light not being powerful enough to reach the eye, but I really think I've picked up a good understanding of what you, Helm, and trick were saying. The next thing to do now, I guess, is to practice using this in some art.
Oh, and sorry about branching away from your format, Lief. I'm sure you can agree, though, that this has produced quite a nice bit of material for the wiki.