oh gosh, I lost another post for not looking when I click after typing... Dr. geep, thanks so much for reposting... but, could you elaborate more on how to make the "visible"light cone effect, as seen in theaters (where the dust in the air helps produce the light cone effect)... is it just putting any cone and making it transparent?? but how transparent then?? I was also wondering how to get the effect of sun light in a hot summer day, but I think that by reading your tutorial i can figure it out myself (I think) thanks again! Max