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This animation of a gem was created entirely within WinImages. Note the refraction, varying highlights off of the facets sloping down from the "table" or the gem, and the general "feel" of depth achieved in the image. So how hard is this to do? This is output from WinImages integral Ray Trace engine, and we provide the model for the gem here. All you have to do is download, make a few trivial adjustments to the model file, and you can make your own realistic gem at any resolution you like. Animated, too! Also, with a few simple commands, you can change the index of refraction to match other materials, the gem's color, translucency, and so on. As shown here, the color of the gem is clear (no translucency), colored white as a diamond is, and the index of refraction is also precisely the same as diamond (we give you a list of indexes for various common materials, and you can find others on the web or in physics texts.) You can create accurate reproductions of glass, emerald, ruby, quartz and more with ease. The animation shown above is a GIF animation that was produced directly by WinImages. The spin of the gem is specifed in the Ray Tracer; in this case, we spun the object, but you can also spin your viewpoint if you prefer. Click Here for an example of a spinning viewpoint. (If the gem stops spinning when you're viewing the AVI, clicking "refresh" on your web browser's toolbar will start it again.)
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