fake caustis glass material with dispersion
- January 15, 2017
- 1,531 Downloads
- 26 Likes
- Blender 2.7x
- Render: Cycles
- Creator: PixlFX
- License: CC-0
Description:
Hi. I made a simple material with fake caustic hope you will enjoy it. Using this material, turn off the refraction and reflective (like in this file) There's no point wasting render time creating noisy real caustics! https://www.youtube.com/watch?v=APJaOa70LPE&feature=youtu.be
Comments:
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PixlFX
Edited January 16, 2017Thanks! Now I'm a little optimized material and added option to adjust the brightness of the caustic
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mramshaw
Written January 17, 2017Nice! For my money Roughness of 0.005 and Caustics of 2 look a lot better.
Then double the render samples to 256 and things look a lot cleaner.
Looks amazing with galileo_probe.hdr (Mirror Ball) set to Strength 0.10.
[I still have to downvote as the HDR cannot be redistributed.]
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Copperplate
Written January 03, 2018WOW... this is a fantastic setup!!! It looks way better than real caustics at a fraction of the cost... and no noise! Incredible. Thank you PixlFX for this amazing gift!
-Adam
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IAMCUBEMAN
Written January 18, 2018I currently making a Master Glas Shader for myself, do you think I could incorporate your caustics implementation to the file I post on BlenSwap?
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iogames
Written March 15, 2026This is a great and practical approach to creating fake caustics without the hassle of noisy renders. Thanks for sharing the tutorial! For more creative inspirations, visit https://www.bouncepath.org/ bounce path , your gateway to endless creativity!
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monkaW1
Written March 17, 2026Περίμενα στην ουρά για την τράπεζα στην Αθήνα και η καθυστέρηση ήταν εκνευριστική για όλους. Για να μη χάνω τον χρόνο μου, άνοιξα το ivybet και άρχισα να παίζω μερικά σπιν στο κινητό μου. Εντελώς ξαφνικά, η οθόνη γέμισε με κέρδη και χτύπησα μια απίστευτη νίκη που μου έφτιαξε τη μέρα. Η αναμονή στην ουρά έγινε ξαφνικά η πιο τυχερή στιγμή της εβδομάδας μου
The included HDRi is from a free pack by Maxime Roz and probably copyright.
There seem to be lots of unnecessary Combine RGB nodes but I might be wrong on this.
Likewise HSV and Multiply nodes. And the whole thing could be a lot more organized.
That said, the results look really good.
I think the refractive caustics are much too strong. Energy conservation means that they should be less bright than highlights but brighter than shadows.
Usage note: if you are FAKING caustics, leave Refractive and Reflective UNCHECKED (like in this file). There's no point wasting render time creating noisy real caustics!