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§ 16.90.5.4 - atmosphere (SceneScript element)

 <atmosphere EXP> 

This language element may be used inside a  <trait>  block.

IOR (EXP) can reasonably vary from about 1.0 on upwards. IOR stands for "Index Of Refraction" and represents a controlling element for how much a light ray will bend when it transits the interface between the atmosphere and objects that have a differing IOR. This setting is related to the  <refraction>  language element, which lets you define an IOR for objects that exist in the atmosphere. The atmosphere, as we mean it here, is the otherwise empty space that you're creating objects in. Here are some reference IOR values for your use:

Medium	IOR
Vacuum	1.0
Air	1.0003
Ice	1.309
Water	1.333
Alcohol (Ethyl)	1.36
Fluorite	1.434
Glass	1.46 to 1.66
Turpentine	1.472
Glycerine	1.473
Rock Salt	1.544
Quartz	1.544
Ruby	1.72
Zircon	1.923
Diamond	2.417

WinImages F/x, Morph and all associated documentation
Copyright © 1992-2007 Black Belt Systems ALL RIGHTS RESERVED Under the Pan-American Conventions
WinImages F/x Manual Version 7, Revision 6, Level A

 

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