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Blending colours with DMX encoded files

Posted: Mon Oct 18, 2010 13:37
by nickharambee
Hi

I am trying to work out how to blend colours in Resolume so that the colours on each layer blend together to make the colours that would be made if you mixed the same paint colours together, e.g. red and green make brown, etc. So I have a clip of a cloud effect, which you can see here:



This is a mov file of essentially just white on black. So I thought the best thing to do would be to transform the black background to transparent, and I did this using the Unmult plugin in After Effects, rendering using DMX codec with transparency preserved. I then added an instance of the resulting file to four different layers in resolume, and after playing about with rotating and positioning and colorizing I got the following:



This looks pretty good, but the colours aren't blending in the way that I'd like, as described above. For this example I have used screen blend mode for each layer. I have tried a few other blends but can't work out which one I need.

If anyone could let me know how best to achieve this effect I'd be grateful.

Thanks

Nick

Re: Blending colours with DMX encoded files

Posted: Mon Oct 18, 2010 18:03
by Joris
Hey Nick

When you are working on a computer, you are working in an RGB colour space. And as strange as it may sound, in an RGB colour space, the colours do not mix like they would in paint. For instance, we all learn in kindergarten that yellow and blue make green, whereas on a computer cyan and yellow make green, and red and green make yellow. Go figure!

So in short, I don't think there is a blend mode or effect that will allow the mixing of colours like you describe. Would be cool if it existed though!

Joris

Re: Blending colours with DMX encoded files

Posted: Tue Oct 19, 2010 02:30
by nickharambee
Ah, thanks for the explanation Joris. I will play around the various blend modes and see what interesting RGB colour combinations I can come up with.

Nick