11 lines
395 B
PHP
11 lines
395 B
PHP
// Persistence of Vision Raytracer
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//
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// This file defines a few Index of Refractions for various materials
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// for sodium light. Source: College Physics by Arthur L. Kimball, PhD.
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// 4th Edition (1923)(!)
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// ---------------------------
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#declare Flint_Glass_Ior = 1.71
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#declare Crown_Glass_Ior = 1.51
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#declare Diamond_Ior = 2.47
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#declare Water_Ior = 1.33
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#declare Air_Ior = 1.000292
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