Texture-mapped Incandescence for Cycles Staff Pick

  • September 29, 2013
  • Blender 2.6x
  • Render: Cycles
  • Creator: ata4
  • License: CC-0
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A simple iron rod and glass tube with an incandescence gradient using the new blackbody node for Cycles in the upcoming version of Blender 2.69. It helps you to use black & white textures literally as heat maps to apply realistic incandescence on any object. Unlike the blackbody node, the custom incandescence node group also does the lighting for you.

May be useful for smithing scenes or glowing fantasy weapons, for example.

Note: the blend requires version 2.69 or higher to work properly! It has been created with blender-2.69-testbuild1, but it should also work with the upcoming final builds.


  • matpiet profile picture

    I spent a good amount of time in a welding shop and this looks great

    Edited September 30, 2013
  • glassdog profile picture

    Thanks ata4, I am a glass blower. And have been using blender to make glass blowing tutorials. Showing the temperature of the hot glass has not been good. This is perfect. I look forward to 2.69 coming out so I can use it. Thanks again, Mike (the Glassdog)

    Edited September 30, 2013
  • ata4 profile picture

    I'm pretty sure this should work on glass or other transparent materials, too. I'll see if the current node setup is flexible enough for that.

    Edited September 30, 2013
  • ata4 profile picture

    I updated the example scene and added a glass tube and I think it looks as expected. What do you think? :)

    Edited October 01, 2013
  • glassdog profile picture

    Yes ata4. Thats great, Cant wait to start using it. Thanks again.

    Edited October 06, 2013
  • ephebox profile picture

    The color and details are pretty cool! Fantastic job!

    Written October 31, 2013
  • freeborough profile picture

    I absolutely love this for some reason - it just looks so nice. It reminds me of those amazing heat effects that Blizzard animators use in the CG movies for Warcraft and Diablo 3. Thanks for sharing.

    Written November 02, 2013
  • minglelove profile picture

    Oh this is goood. Thanx for sharing :) I have one question though. I've looked at the node setup and there was this node group (condFresnel) full of math nodes that I don't understand. I disconnected "Combine RBG" node from "Gloss" node and there was no difference. What does it do? Ok, now I have two questions :) Would you please give me some info on where to learn how to use math node and make node groups like u? Thanx again for this share.

    Written December 05, 2013
  • Meiun profile picture

    this is actually quite useful in the creation of eyes similar to older works by あさぎり and some works by gia. in pictures this is fairly simple shading and lighting, but it was hard to replicate this well in 3D works.

    it's a niche use though granted. theres probably 5 or 6 other people who work in this style even if you include gia and あさぎり and the latter has grown away from it and broadened the range of colours they use.

    here is a less complex and not fully lighted example of the effect from a work that started as concepting and became a graffiti stencil http://puu.sh/6yHam.png

    Written January 26, 2014
  • benu profile picture

    Beautiful shader. Thank you!

    Written August 19, 2014
  • mischa96 profile picture

    when i apply it to my mesh its just the color of the heated metall and now at the other end still black

    Written November 15, 2014
  • Murnis profile picture

    Thank you very much!

    Written December 06, 2014
  • Collwolf profile picture


    Written June 23, 2016
  • andyanos42 profile picture

    thank you for sharing it!!! add ColorRamp...wohohoho...

    Written October 18, 2016
  • kutaybs profile picture

    Thank you! I used this material to visualize a molecular structure about my research and it was featured on the cover of a peer-reviewed Chemistry journal [here] (https://pubs.acs.org/toc/cmatex/30/7).

    Written July 31, 2018
  • DIONIZIOLOPES profile picture

    Thank you very much for sharing this material !!!! Its helps me a lot !!!

    Written April 23, 2019