Refraction IOR

Most tables I have seen for IOR are not displayed in ranges of 0.0 - 1.0, does anyone know where I can find one for different materials in this format?

Just divide the 1 by whatever number the tables are in.

IORs are phisically in the 1 - 2.54 range simply because IORs are relative to empty space, whos IOR is 1, and all normal materials have an higer IOR.

Why do you want them in [0-1] range?


s68: ask ton :slight_smile:

I understand that they are all in the 0.1 - 2.54 range, it’s just that Blender only goes from 0.0 - 1.0, so how do I do 1.0 - 2.54, is it just the conversion of the 0.0-2.54 number to a 0.0-1.0 range?

Ton said he was going to change that soon.


Good enough, I was just curious. Far be it from me to criticize some small thing like this after all that ton and the other developers have been accomplishing lately.