How do I enter refractiveindex n and k values in OSLTex?

[philvanderloo]

Can someone tell me how to enter these values in the OSLTex dialog.

Is it to be entered into the complex_ior osl text file?

Thank You

[Francisco Penaloza]

you may want to look at this instead

http://www.sigerstudio.eu/shop/plugins-free/sigertexmap-complexfresnel/

[philvanderloo]

Thank You Francisco but this brings up the exact same question.

How do the numbers, ex. 1.1327, correspond to the numbers in the Red, Green, and Blue n values?

In other words, where did 2.741 come from?

 

 

[Andres Saarnak]

On http://refractiveindex.info you choose for example Gold, then enter the wavelength for a red (0,65um) and you get values n = 0.18309 and k = 3.4241, then enter the wavelength for a green (0,510um) and blue (0,475um) and you get different n and k values for both. Then you can enter each of these values to the Complex Fresnel Texmap. For example, in an image you posted, n value 1,1327 is for a blue wavelength and copper, so it should go blue n slot in Complex Fresnel. Value 2,741 in picture must be either for some other wavelength or for some other material.