# Volumetric Lights trick **URL:** \ **Category:** Tutorials & Guides\ **Created:** [November 18, 2012, 7:34pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232 "2012-11-18T19:34:03Z")\ **Posts on this page:** 14\ **Page:** 2
**Author:** ![correntes](https://avatars.discourse-cdn.com/v4/letter/c/edb3f5/32.png) [@correntes](https://forums.chaos.com/u/correntes)\ **Post date:** [October 13, 2013, 6:32pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/23 "2013-10-13T18:32:47Z")
Hi Polymax, Can you elaborate how you did it ? ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [October 13, 2013, 7:35pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/24 "2013-10-13T19:35:14Z")
Does it even make any difference whether you set the plane perpendicular to camera or lights or just in some random direction? ---
**Author:** ![Polymax\_1](https://avatars.discourse-cdn.com/v4/letter/p/9fc348/32.png) [@Polymax\_1](https://forums.chaos.com/u/Polymax_1)\ **Post date:** [October 13, 2013, 7:48pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/25 "2013-10-13T19:48:26Z")
plane must look at cam. And I use opacity for the planes. ---
**Author:** ![boumay\_1](https://avatars.discourse-cdn.com/v4/letter/b/e9bcb4/32.png) [@boumay\_1](https://forums.chaos.com/u/boumay_1)\ **Post date:** [February 10, 2014, 6:21pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/26 "2014-02-10T18:21:55Z")
Sorry for the noob question but can you expain the workflow, I didn’t get it. White plane animated, in which direction, planes dimensions, angle? thank you ---
**Author:** ![Tweekazoid](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@Tweekazoid](https://forums.chaos.com/u/Tweekazoid)\ **Post date:** [May 4, 2014, 2:01pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/27 "2014-05-04T14:01:56Z")
![stol_6_zpsdd656586.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/4/b4ebcc0f2c436864324748daf2c12631cf7c657a.jpeg) 522 passes … neat trick but not really that useful. and get this work for animation is impossible ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [May 4, 2014, 8:03pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/28 "2014-05-04T20:03:16Z")
> [@Tweekazoid](#): > > ![stol_6_zpsdd656586.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/4/b4ebcc0f2c436864324748daf2c12631cf7c657a.jpeg) > > 522 passes … neat trick but not really that useful. > and get this work for animation is impossible How long did it take? I bet you don’t need so many passes so you could try increasing GI samples. But yeah, it’s not very usable anyway. 😃 ---
**Author:** ![Tweekazoid](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@Tweekazoid](https://forums.chaos.com/u/Tweekazoid)\ **Post date:** [May 4, 2014, 8:50pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/29 "2014-05-04T20:50:58Z")
cca 20 minutes, yeah i think I had about 4 GI/aa. so that could be better ---
**Author:** ![melvin\_uspo](https://avatars.discourse-cdn.com/v4/letter/m/c5a1d2/32.png) [@melvin\_uspo](https://forums.chaos.com/u/melvin_uspo)\ **Post date:** [June 14, 2014, 9:43pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/30 "2014-06-14T21:43:37Z")
Hello, I’ve tried and tried and tried but I really cant figure out how this is done. Would someone please be so kind and give me a short step-by-step tutorial? best regards, melvin ---
**Author:** ![adi1](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@adi1](https://forums.chaos.com/u/adi1)\ **Post date:** [July 18, 2014, 6:21pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/31 "2014-07-18T18:21:22Z")
> [@melvin\_uspo](#): > > Hello, > I’ve tried and tried and tried but I really cant figure out how this is done. Would someone please be so kind and give me a short step-by-step tutorial? > > best regards, > melvin Hey melvin, try with my settings as attached. Really interesting techique , but slow render times and very noisy. Does anyone have any advice on that ? ![MB.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/2/b/2bd0b1f9e8707d4da0ec4d50eb3230b57d2358de.jpeg) ---
**Author:** ![RolandB](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/rolandb/32/235203_2.png) [@RolandB](https://forums.chaos.com/u/RolandB)\ **Post date:** [September 17, 2015, 12:14pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/32 "2015-09-17T12:14:52Z")
Here is my contribution; rendering time 4h (image is 3000pix large) ![classroom-web.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/1/8/182586c32272a535d601c0d4cadc83c96e8bf366.jpeg) ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [September 17, 2015, 12:57pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/33 "2015-09-17T12:57:18Z")
No wonder the teacher is pissed of as the students are a) staring through the window, b) browsing facebook, c) running across the classroom with their arms close to the body with the speed of light. btw, is this done with the moving plane trick? I wonder how this competes against the volumetric fog. ---
**Author:** ![RolandB](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/rolandb/32/235203_2.png) [@RolandB](https://forums.chaos.com/u/RolandB)\ **Post date:** [September 17, 2015, 1:12pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/34 "2015-09-17T13:12:09Z")
> [@maru](#): > > No wonder the teacher is pissed of as the students are a) staring through the window, b) browsing facebook, c) running across the classroom with their arms close to the body with the speed of light. > btw, is this done with the moving plane trick? I wonder how this competes against the volumetric fog. In fact the teacher did not look comfortable ! Well I only use a box with a CoronaVolumeMat and it’s so easy to render. I will test the technic with the plane ASAP… thanks Maru 😉 ---
**Author:** ![Ondra\_1](https://avatars.discourse-cdn.com/v4/letter/o/50afbb/32.png) [@Ondra\_1](https://forums.chaos.com/u/Ondra_1)\ **Post date:** [September 17, 2015, 2:52pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/35 "2015-09-17T14:52:24Z")
maru: interesting interpretation, I just see beginning of some porn 😃 ---
**Author:** ![Mr.Schorsch](https://avatars.discourse-cdn.com/v4/letter/m/e274bd/32.png) [@Mr.Schorsch](https://forums.chaos.com/u/Mr.Schorsch)\ **Post date:** [April 22, 2016, 12:05pm UTC](https://forums.chaos.com/t/volumetric-lights-trick/125232/36 "2016-04-22T12:05:28Z")
@ Ondra, best comment! [Previous page](https://forums.chaos.com/t/volumetric-lights-trick/125232.md?page=1)