Refractive Index Info - RGB wavelenght values

[cdordelly09]

Hi!

I was looking the refractive index info website and I don't know which value correspond to RGB wavelength to use it with complex ior shader. I only see one value for N and K:

Someone know how can I get this values with this website? Thanks!

[peter.horvath6V6K3]

The presets in the complex IOR shader uses 0.65, 0.55 and 0.45 micrometers as the R, G, B wavelengths.

[cdordelly09]

So, If I want to make a new preset (for example a preset from Boron) I need to multiply or divide the N value (2.3465) by 0.65 to get the R wavelength? I feel that I don't understand it clearly yet.

[peter.horvath6V6K3 · Accepted solution]

Nope, you just have to get the n, k value for each wavelength one-by-one. So type in 0.65, than you get the n and k for the R channel (first coordinate of the vector in the preset), than type in 0.55 for the G, and so on.

[cdordelly09]

Thanks Peter! now I understand it clearly.