refraction settings

If you are having trouble with the refraction settings, be sure to change the Refractive Index to a number like 1.5 for glass, 1.3 for water, 2.4 for diamond, and so on. If you try to put that number in the Refraction Limit field (the next one down) it'll pop to a whole number (integer) -- this field is for limiting the number of light bounces through the material.


Vacuum 1.0000
Air 1.0003
Ice 1.309
Water 1.33
Ethyl alcohol 1.36
Glass (fused quartz) 1.46
Glass (crown) 1.52
Sodium chloride (salt) 1.54
Zircon 1.92
Diamond 2.42