Daeshawn opened this issue on Mar 31, 2009 · 78 posts
bagginsbill posted Fri, 13 November 2009 at 7:20 AM
Anth,
Yes, the same list is published in CGSociety and other places. Read the comments on many of these. Each time I find this list, underneath are people questioning the metals. They complain that typing in these quoted values for gold and silver into programs such as Maxwell, Maya, 3DSMax, all produce nonsense. And so it is because these numbers are nonsense, and represent only part of the IOR of metals.
It takes two numbers to specify the IOR of a metal, the real and the imaginary part. And these two numbers are used in a more generalized Fresnel equation that solves for reflectivity based on the frequency of the light, not just the angle of incidence.
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