Started by JOEYMAC, October 04, 2019, 02:36:38 PM
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Quote from: DetroitVinylRob on October 10, 2019, 06:29:56 AMI hope might find some utility in this...It's all a question of what your customer anticipates and how much time you have but...First off, most light pipe scenarios present with a LP encapsulated in a dark housing environment, the inside of your product body, often they also need a closeout panel/reflector behind them that is usually molded white plastic or chromed to brighten up the LP and limit a peak-through condition. Often there is an additional outer lens (sometimes with optics or texture) above the LP on first surface. All these modeling things add realism. Be accurate with material thicknesses in you CAD modeling. I also highly recommend Global Illumination with a bounce count that is increased beyond the exact number of reflections/refractions in the physical part. TRY MORE until you reach diminishing returns (secondary and tertiary bounces add tonal shift, highlight detail, and dimensional transparency). I highly encourage you to utilize "dielectric" material (abbe/refractive index) for your light pipe(s) and add an IES-light at the focal point of your LED if at all possible for the most realistic presentation. IMHO it is worth the extra effort and will keep your product presentation from appearing 2D and cartoon like. And you really should not shortcut on using real material specs. Ks is designed to perform accurately to real material properties. Here is a good resource for relevant material specs: https://refractiveindex.info/?shelf=organic&book=polycarbonate&page=Sultanova(I have been a transportation/product designer for over forty years, twenty one of it as a lighting designer, and over ten years in ray-trace based rendering. Our product work MUST be photo accurate and repeatable for approval by all the major automotive brands on the planet.) Just saying