# dichroic glass

**URL:** <https://forums.chaos.com/t/dichroic-glass/54640>\
**Category:** Issues\
**Tags:** glass, refraction, dichroic, light\
**Created:** [July 21, 2015, 12:27pm UTC](https://forums.chaos.com/t/dichroic-glass/54640 "2015-07-21T12:27:55Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![javieroryan](https://avatars.discourse-cdn.com/v4/letter/j/d2c977/32.png) [@javieroryan](https://forums.chaos.com/u/javieroryan)\
**Post date:** [July 21, 2015, 12:27pm UTC](https://forums.chaos.com/t/dichroic-glass/54640/1 "2015-07-21T12:27:55Z")

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Hi

Is it possible to create the same effect that the dichroic glass produce with the light?

\*The Dichroic glass is glass which displays two different colors by undergoing a color change in certain lighting conditions.

Thanks

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**Author:** ![\_Lele](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/_lele/32/49986_2.png) [@\_Lele](https://forums.chaos.com/u/_Lele)\
**Post date:** [July 21, 2015, 6:21pm UTC](https://forums.chaos.com/t/dichroic-glass/54640/2 "2015-07-21T18:21:28Z")

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It’s actually pretty easy, yes.  
This is what i got in three minutes of playtime.  
In order: on the side of the light, on the other side, and from the top.

The shader (base concept only!) is attached as material library.  
Notice you will have to choose the light you want the glass to react to, in the (twice instanced) falloff map.  
Let me know if something isn’t quite clear.

 ![frontlit.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/5/3/53b320edac76d387e1c58adc4b1164f156255095.jpeg)  
 ![backlit.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/5/4/54f6fa89c058a5090fa50c6435d265fa99311e79.jpeg)  
 ![top.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/a/ba3255f6e2c973f78b4d5ec8c9c57b2ffab8adb9.jpeg)  
[dichroic\_glass\_base.zip](https://forums.chaos.com/uploads/short-url/vWRCLVJF1BFyX32WLCk8RV9kvfJ.zip) (2.56 KB)

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**Author:** ![javieroryan](https://avatars.discourse-cdn.com/v4/letter/j/d2c977/32.png) [@javieroryan](https://forums.chaos.com/u/javieroryan)\
**Post date:** [July 21, 2015, 6:57pm UTC](https://forums.chaos.com/t/dichroic-glass/54640/3 "2015-07-21T18:57:06Z")

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Thanks!!! I will check that out as soon as possible.

🙂

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**Author:** ![javieroryan](https://avatars.discourse-cdn.com/v4/letter/j/d2c977/32.png) [@javieroryan](https://forums.chaos.com/u/javieroryan)\
**Post date:** [July 23, 2015, 3:29am UTC](https://forums.chaos.com/t/dichroic-glass/54640/4 "2015-07-23T03:29:30Z")

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i was trying to reach this effect (image). Its a project from james carpenter, and he uses the dichroic glass to achieve a color. And this color changes thanks to the direction of the natural light.

 ![IMG_0444.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/d/8/d894f4e41584be41b5da0eff490e5be7915671e8.jpeg)

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**Author:** ![3LP](https://avatars.discourse-cdn.com/v4/letter/3/5f8ce5/32.png) [@3LP](https://forums.chaos.com/u/3LP)\
**Post date:** [July 23, 2015, 9:49am UTC](https://forums.chaos.com/t/dichroic-glass/54640/5 "2015-07-23T09:49:37Z")

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off topic but just wanted to share this :

> **[Geometric Dichroic Glass Installations by Chris Wood](https://www.thisiscolossal.com/2014/09/geometric-dichroic-glass-installations-by-chris-wood/)**
>
> Artist Chris Wood works with colored glass to create colorful, prism-like mazes and mandalas of light installed vertically on walls. Her most common material is dichroic (meaning ‘two color’) glass, a material invented by NASA in the 1950s that has a...

This is so cool! 😛  
Stan

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**Author:** ![javieroryan](https://avatars.discourse-cdn.com/v4/letter/j/d2c977/32.png) [@javieroryan](https://forums.chaos.com/u/javieroryan)\
**Post date:** [July 23, 2015, 11:18am UTC](https://forums.chaos.com/t/dichroic-glass/54640/6 "2015-07-23T11:18:35Z")

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:o thats amazing!!!

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**Author:** ![Neilg](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/neilg/32/7044_2.png) [@Neilg](https://forums.chaos.com/u/Neilg)\
**Post date:** [July 23, 2015, 2:48pm UTC](https://forums.chaos.com/t/dichroic-glass/54640/7 "2015-07-23T14:48:51Z")

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There’s a huge one a few blocks from where I live by tom patti

https://www.google.com/maps/embed?pb=%213m2%212sen%214v0%216m8%211m7%211sY6e2vd9lTr8wwEO-lyvr2g%212m2%211d25.785266%212d-80.190647%213f86.3%214f13.584%215f0.416

Cant find any good shots of it at night though

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**Author:** ![crazy\_homeless\_guy](https://avatars.discourse-cdn.com/v4/letter/c/59ef9b/32.png) [@crazy\_homeless\_guy](https://forums.chaos.com/u/crazy_homeless_guy)\
**Post date:** [July 27, 2015, 3:42pm UTC](https://forums.chaos.com/t/dichroic-glass/54640/8 "2015-07-27T15:42:36Z")

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The chances you are going to be able to render the effect into the scene in a way that looks good is very low. It will be much faster to start thinking about how you can do this effect by rendering several passes and painting in post.
