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V-Ray Caustics

By Ricardo Eloy
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| 13 Comments
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Date Added: 25th August 2011
Software used:
3ds Max, V-Ray
1039_tid_main.jpg
Here's a quick 10-minute tutorial on how to create good looking caustics using V-Ray without spending hours in calculations. The whole concept is pretty simple and the final setup should not take long nor stand on one's way while working on a scene.

First, we have to understand why the heck caustics take so long to calculate (if you want something that looks remotely good). And there's only one word to explain it: waste. What most people do is to try to generate caustics using the same lights that light the scene, and that causes a huge waste oftime. Simply because you don't need V-Ray to calculate every single photon a light emits. You only need those that actually cause the caustic effect (which are the minority, of course).

Then, what if you could calculate just those photons? What if you could simply forget about all the waste and complicate settings and use your system's resources to calculate only those few to maximum effect? That's the objective of this tutorial.

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Readers Comments (Newest on Top)
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(ID: 232824, pid: 0) Fernando on Sun, 10 November 2013 11:23pm
What a brutal improvement. I thought I would never have caustics in video. Brilliant.
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(ID: 209292, pid: 0) Sergio.goroshko on Mon, 29 July 2013 12:26pm
very good tutorial, thanks a lot!
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(ID: 127277, pid: 0) TreborXam on Fri, 22 June 2012 7:47am
Thank you very much Ricardo. This is cunning and very useful. PS It works in Maya as well.
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(ID: 116541, pid: 915700) Willsonlynn (Forums) on Sat, 12 May 2012 10:24am
great controle in your scene..________________________________[url=http://www.mmolive.com/]Cheap WOW Gold[/url]
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(ID: 116124, pid: 0) Krysia on Thu, 10 May 2012 9:33pm
It's not working for me in Vray 2. Any ideas?
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(ID: 91315, pid: 0) RogerDTC on Wed, 07 March 2012 6:34am
"Really really really..." nice tutorial, it's gonna "really really really" help me out in the near future, just kiddin'. That was awesome, thanx a lot Ricardo!
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(ID: 80768, pid: 0) Clovis on Sat, 21 January 2012 3:58pm
Ricardo - Nice tutorial. Thanks. Clovis - (Illuminata)
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(ID: 48871, pid: 0) Polycarbon on Mon, 29 August 2011 1:42pm
genius.... hate the combination of long rendertimes and fiddeling around with v-ray caustics parmaters.... great controle in your scene..
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(ID: 48821, pid: 0) Eyeursealm on Sat, 27 August 2011 3:48pm
i like animation,but i can't do.is there anybody who can help me?
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(ID: 48797, pid: 0) Suren on Fri, 26 August 2011 8:39pm
Thank you very much for sharing,.. it is really useful!
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(ID: 48784, pid: 0) Biniyam Negash on Fri, 26 August 2011 10:48am
animation is a big art and i like it. 3dtotal is my feverit web and it is nice
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(ID: 48759, pid: 871157) NinthJake (Forums) on Thu, 25 August 2011 11:15am
That's a very good tutorial, I'm sure it will help me a lot in the future :D
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(ID: 165394, pid: 871157) NinthJake (Forums) on Thu, 25 August 2011 11:15am
That's a very good tutorial, I'm sure it will help me a lot in the future :D
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