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Carlos Dordelly avatar image
Carlos Dordelly asked ·

Refractive Index Info - RGB wavelenght values

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!

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Peter Horvath avatar image
Peter Horvath answered ·

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.

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Carlos Dordelly avatar image
Carlos Dordelly answered ·

Thanks Peter! now I understand it clearly.

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Carlos Dordelly avatar image
Carlos Dordelly answered ·

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.

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Peter Horvath avatar image
Peter Horvath answered ·

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

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