Physically based metals for Cycles

  • July 06, 2012
  • 3,698 Downloads
  • 3 Likes
  • Blender 2.6x
  • Render: Cycles
  • Creator: BroadStu
  • License: CC-0
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Description:

In this .blend file I have created a blendgroup node that calculates the conductive fresnel terms in cycles, that includes absorption. This group has then been used to calculate the reflectance for approximate red, green and blue light wavelengths based on recorded data and the incoming ray angle. The file does this for 23 different metals and substances including Gold, Silver, Copper, Iron, Nickel, Zinc, Iridium, Osmium, Aluminium and Chromium. It actually worked much better than I was expecting and gave reasonable results for most of the metals, although a few look a little off. It's questionable whether this physically based method is much better than a coloured glossy shader. I have also included a fake brushed metal effect.

Note: The conductive fresnel term actually already exists in the cycles source code although there's no node for it and it does not seem to be used anywhere(I may be wrong about this). Perhaps in the future it will be incorporated and the complex nodegroup can be removed.

Comments:

  • elbrujodelatribu profile picture
    elbrujodelatribu

    Great nodes!

    Edited July 07, 2012
  • BroadStu profile picture
    BroadStu

    Thanks!

    Edited July 17, 2012
  • nova1996 profile picture
    nova1996

    Absolutely realistic. Stunning.

    Edited July 25, 2012
  • Warcos profile picture
    Warcos

    amazing....

    Written July 30, 2012
  • gnurbs profile picture
    gnurbs

    Excellent work! Exactly what I was looking for! Thank you.

    Written November 14, 2012
  • dentonartist profile picture
    dentonartist

    Holy $#!+ you are awesome...

    Written January 11, 2013
  • sinus159 profile picture
    sinus159

    How to increase the roughness (for iron) ?

    Written January 16, 2013
  • BroadStu profile picture
    BroadStu

    Each metal has a glossy bsdf in its setup. To change the roughness you change the roughness setting on this shader and ensure that it isn't using `Sharp'.

    Edited January 20, 2013
  • Kryptonian8077 profile picture
    Kryptonian8077

    Amazing! Thank you so much for uploading them :D

    Written February 04, 2013
  • elvetos profile picture
    elvetos

    This is extremely useful - thank you very much for sharing!

    Written July 04, 2013
  • gneders profile picture
    gneders

    Beautiful textures, thank you!:D

    Written July 21, 2013
  • JDHaller profile picture
    JDHaller

    Yes Please!
    Thank you for sharing Amazing selection.

    Written April 26, 2014
  • flaken369 profile picture
    flaken369

    This is awesome! Nice work

    Written July 25, 2014
  • sendinthejagdpanther profile picture
    sendinthejagdpanther

    Is this for cycles or internal? Thanks

    Written December 28, 2014
  • Kr8vKhan profile picture
    Kr8vKhan

    Thank u very much! Inspirational asset for a newbie like me!

    Written April 14, 2016
  • Zombiewoof profile picture
    Zombiewoof

    These are great shaders! Thanks for the good work!

    Written September 05, 2016
  • inbaloz profile picture
    inbaloz

    Beautiful work! Thank you for sharing.

    Written October 23, 2016
  • fxswan profile picture
    fxswan

    Nice....I love that you did so many different metals.....this will make a great shader asset for my work flow.....Great work and thanks

    Written March 09, 2017