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Multilight Colours
Posted: Tue Sep 25, 2007 4:30 pm
by w i l l
I'm trying out a few things with lighting. This is a multilight colouring setup (pretty simple so not sure if anyone has suggested this already).
You can't change light colours using multilight but you can create an emitter (make it hidden to camera or use a ghost layer - if you don't you'll get weird artefacts/overlapping geometry colours) and duplicate the emitter 3 times, then set each emitter to red, green and blue. That way you can alter the amount of red, green or blue in multilight to create any colour from what looks like one light source. I.e.
This emitter plane is actually 3 emitters in exactly the same position:
Red, Green, Blue and a combination of colours: (the colour shown is what is reflected from the studio floor from the setup above... i..e the colour that would light your subject).
Use:

Posted: Tue Sep 25, 2007 8:25 pm
by JCAddy
Have you tried animating this? I'd be interested to see how they blend in and out.
Posted: Tue Sep 25, 2007 8:59 pm
by w i l l
Oh yeah - thats what i forgot to add - you can do some cool multilight animations. I post something soon.
Posted: Tue Sep 25, 2007 10:46 pm
by Bubbaloo
What a great idea!
Posted: Wed Sep 26, 2007 9:36 am
by Tim Ellis
Nice trick Will.

Thanks for sharing.
Tim.
Posted: Wed Sep 26, 2007 2:59 pm
by w i l l
Weird artefacts from not making 3 sphere emitters hidden. Very 80's i think:

Posted: Wed Sep 26, 2007 3:01 pm
by w i l l
This is a top view of 3 sets of 3 invisible spheres intersecting with the ground plane which i'm about to animate to show changing colous. I was going to do a multilight animation of colours changing on a subject but i got sidetracked with the way the emitters look when you intersect them with a plane/studio floor.

Posted: Wed Sep 26, 2007 3:21 pm
by Bubbaloo
Will's going disco!

Posted: Wed Sep 26, 2007 3:28 pm
by w i l l
Will's going insane.
Posted: Wed Sep 26, 2007 3:30 pm
by djflod
now we now the next ministry-look

Posted: Wed Sep 26, 2007 3:32 pm
by w i l l
Ministry aren't this cool. The get the reject 5 minute jobs.
Posted: Wed Sep 26, 2007 3:37 pm
by djflod
Ministry aren't this cool. The get the reject 5 minute jobs.
muahahaha

Posted: Wed Sep 26, 2007 4:26 pm
by mashium123
Hi Will.
Cool multilight games that you're playing in the moment.
I never tried the multicolour-thingy on a directional emitting basis but I did try it with multi-color-hdr, with the more or less same technique.
Maybe you're interested so... here you can get a quite big ml animation (15mb):
http://www.divshare.com/download/5770437-1f1
It looks like this:

It all is just one render, only the diverse hdr sources are being animated via ml. (The camera is inside of a geometry on which a glass-ish mxm with bump is applied)
To show that the scene is really lit with different colours I put s.th. in it and did it again (smaller, 4mb):
http://www.divshare.com/download/5770457-f50
It looks like this:
So those two emitting options - mulit-hdri together with your directional multicolour emitters - altogether in just one render... that would make LOTS of completely different lighting&colour situations; in stills as well as animated.
That'd be not bad for just ONE SINGLE render, no?

Posted: Wed Sep 26, 2007 5:19 pm
by JCAddy
Holy crap I feel like I am on acid
Posted: Wed Sep 26, 2007 5:45 pm
by w i l l
Hyperballad wrote:Holy crap I feel like I am on acid
Ha ha - yeah that is so much like acid.
Mashium. Thats nice - what is the model though? How did you make that? I need to have a go at making something similar (on PC not via acid).