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Hmmm....not quite sure what this means. Does it mean that two planes with the same shader applied would make better looking water than one plane? Or would that be one surface curved into a "u" shape so that light would pass through the same shader application twice at least? Please forgive my ingorance here. That would seem to explain why a wine glass, for instance, makes such a lovely likeness. The light (the background image) has to pass through either 2 or more likely four surfaces. Am I getting close?
regards, wb
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