color differance "Wright" style in MK Flame

[spetz]

Heya All!
I am trying to figure out Steve Wright’s color differance matte equations (Digi’ Comp’ for Film and Video), and had some doubts about the way I impliment them in MK Flame. here goes: he is talking about substracting the blue/green Channel, (BS or GS) by the red (usually), and by that pulling a cool looking matte. it works up to a certain level, but I wonder what is the best way of deviding the RGB in MK. I have tried rewiring them in CC nodes, and also MONO nodes, but is that the best way?? besides if I need to recombine them, let say after a despill equation, how do I do it?? with hopes that I was clear enough, I will be happy to get some answers here… 😉

spetz

[loops]

If you do it in Batch instead of inside the MK, you can use the Seperate and Combine nodes to split out / put back together the RGB channels. Have you seen this tip: http://www.fxguide.com/fxtips-28.html?

[spetz]

thank you very much, that was very helpful!

if only I could use Batch pros. without worring about my sleeping hours… 😉

thanks again, Spetz

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