all that sounds fine but on my wall it sure looks good. proof is in what works for your situation. simpler optics would be nice to get the same result. what would you suggest would be an equivalent to what I did with less optics?
I have fog tonight and tried out a beamshow. Works well for that as well.
I have prisms and lenses coming so when they come I'll try those as well. In the mean time this method works well for my needs.
Sometimes the science just gets in the way of the art.......In this case I don't care why it works just that it does.