Hi Brandon, For an index of refraction of 1.6 you must set an optical thickness of 0.375 for the shader. (-> just add an constant object, set its output to "surface: optical thickness" and set the value to 0.375)
You can find more information about refraction and optical thickness on this page: http://realsoft.info/modules.php?op=modload&name=News&file=article&sid=19 There is a useful table for other materials on the bottom of the page. Jan 2009/2/2 Brandon Moon <[email protected]> > Hello all, > > Sorry I have not had time to post much in the last few years, but I try to > follow most of the RS related topics. > > Now for business... I need some help/advice: > > Here at work we are trying to make a medical part which will also act as a > light guide (light pipe) for LED lights (4) in a circular array. The > material is clear polycarbonate, which I know to have an index of refraction > of 1.6. I am unclear on setting the index of refraction in VSL materials. > If I create a v3 material, I can set the index directly, but the material > is obviously less than ideal. > > Can anyone (Vesa?) give me some advise or a material that will do the job? > > We have made various CNC machined models, but we though we might be able to > simulate the light with RS as we refine the design, and save some time and > money from constant physical machining. > > Thank you in advance for any help! > > regards, > Brandon > >
