Thin-Film Interference For Cycles (GPU Compatible)

  • January 06, 2018
  • 2,994 Downloads
  • 49 Likes
  • Blender 2.7x
  • Render: Cycles
  • Creator: GJettG
  • License: CC-BY-NC-SA
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Description:

The interference node group is mostly adapted from Pruster's own OSL interference script found in this Blenderartists thread: https://blenderartists.org/forum/showthread.php?403299-UPDATE-v1-6-Cycles-PBR-thin-film-interference-and-metals

The interference node group inside calculates the Fresnel Reflectance of metals and thin-films of up to two layers. These calculations take into account both a material's real index of refraction, n, and imaginary index of refraction, k (together known as the complex refractive index), allowing for more accurate Fresnel and Interference colors.

Included with the interference node group are various materials made with it including: metals (e.g. gold, silver, copper, and osmium), 12 car paints, oxide coated metals (e.g. tarnished silver and heated iron), coated glasses, and more. Other materials can be made using the known n and k values for each material, many of which can be found here: https://refractiveindex.info/

Only the interference node group is under a CC BY-NC-SA 4.0 license, but the output can be used for any purpose.

Comments:

  • Blendzman profile picture
    Blendzman

    Hello!!! I have a ULTIMATE BANANA pending. I was wondering if u can make a good node setup for my blend.

    Edited January 06, 2018
  • Mikel007 profile picture
    Mikel007

    Looks cool. Thanks for sharing it with us.

    Written January 08, 2018
  • kanalratte profile picture
    kanalratte

    many thanks

    Written January 08, 2018
  • jolhirsute profile picture
    jolhirsute

    Love it ! Thank you !

    Written January 08, 2018
  • sadra68 profile picture
    sadra68

    cool

    Written January 08, 2018
  • acvarium profile picture
    acvarium

    How can anyone be so egocentric, selfish and conceited to publish such basic stuff, as material under such stupid license, as CC BY-NC-SA?

    Edited January 08, 2018
  • luid profile picture
    luid

    Totally agree!

    Edited January 08, 2018
  • sizzler profile picture
    sizzler

    Because they spent a lot of time on it and don't want people to steal it??

    Anyway if you read the description, they said only the node group is under license, but the output can be used for any purpose. What's wrong with that? You just can't sell this shader exactly, but you can certainly sell any renders made with it. What more do you want?

    Edited January 08, 2018
  • prutser profile picture
    prutser

    Yes, what a shame! It's available for free, someone worked hard on it and you can use it for any render purpose you can imagine. Horrible!

    /sarcasm

    Edited January 12, 2018
  • Someone profile picture
    Someone

    Are you serious?

    Written April 21, 2020
  • Juncando profile picture
    Juncando

    Amazing

    Edited January 08, 2018
  • benkl profile picture
    benkl

    Epic. This should be implemented in the main branch.

    Written January 08, 2018
  • prutser profile picture
    prutser

    Then take a look here:

    https://developer.blender.org/T49125

    :)

    Edited January 12, 2018
  • DBT profile picture
    DBT

    Oh man please, I hope they get it working. That would be fantastic!

    Written February 01, 2018
  • thesonofhendrix profile picture
    thesonofhendrix

    GENIUS! If only Cycles would update into a spectral renderer. It seems like these dispersion effects show up in the actual caustics as well, which im guessing cannot be faked... if you can fake them with another nodegroup thing, then you are the highest genius.

    Written January 11, 2018
  • Jean-Christophe Sekinger profile picture
    Jean-Christophe Sekinger

    !!!!

    Written January 12, 2018
  • dahray profile picture
    dahray

    Thanks for sharing.

    Written January 27, 2018
  • DBT profile picture
    DBT

    That's wonderful thank you! Interesting to look at this one and compare to the Universal one by Samsorov on Blendermarket. Is it possible to stack them? Does it work for wacky diffraction type effects?

    Written February 01, 2018
  • zappdust profile picture
    zappdust

    This is really fantastic, I'd been casually looking for a material pack like this for a long time, and the whole kettle of fish just drops into my lap. Folks like you are what makes the blender community one of the best on the 'net. Kudos aplenty sir.

    Written February 06, 2018
  • digtalzombie profile picture
    digtalzombie

    thank you

    Written March 30, 2019
  • enzoroa profile picture
    enzoroa

    niiiiiiiiiiiiice

    Written June 11, 2020
  • Mosawi profile picture
    Mosawi

    you are a star , thnks

    Written June 19, 2020
  • rove profile picture
    rove

    This is one of the best material I have ever seen on blender, thank you

    Written August 10, 2020
  • hamiandcheese profile picture
    hamiandcheese

    ok thanks but its hard to find the download button >:(

    Written October 13, 2020