Home Page › forums › Applications › Fusion › 3 color layers (the Technicolor threat)
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January 31, 2005 at 2:39 pm #199899AnonymousInactive
Well, hello guys, i’m triying to do the same 3-strip technicolor color correction like The Aviator movie (http://www.aviatorvfx.com/ great site here), and i have at last 3 layers, with the 3 color layers, but, when i try to recompose this 3 layers (r.g.b.) to one colored image, using merges, something work wrong, and don’t looks like in the movie… what do you use to perfom this re-compose?
January 31, 2005 at 4:10 pm #209311softer_vbParticipanthey man, merge is not the tool for this, use channel boolean, plug the red channel plate into the background input and the green channel plate into the forground input then use a copy operation and set the the red channel to red bg and the green channel to green fg, leave the blue channel as default, now connect another channel boolean and connect the previous channel boolean the bg input and connect the blue channel plate to the fg input, use the copy operation and in the red channel choose red bg and in the green channel choose green bg and finally in the blue channel choose blue fg, u now have recomped the channel. Channel boolean is a very powerfull tool and is ofcourse easy to use for seperating the channels as well.
January 31, 2005 at 5:58 pm #209314AnonymousInactivethanks a lot… 😉
February 2, 2005 at 9:55 pm #209317AnonymousInactivecan you pls explain the whole process of creating the 2-strip and 3-strip technicolor in digital fusion
it looks very easy but i really can’t create the mattes. i tried luma and ultra keyers but they don’t produce what is shown. i’m really stuck. pls help 😥
February 3, 2005 at 10:15 am #209312softer_vbParticipantHere are some videos of the process:
February 3, 2005 at 5:43 pm #209318AnonymousInactiveyeah, i’ve seen this – that’s why i’m asking
the problem is that i can’t make the mattes
i tried difference keyer, lumakeyer, ultrakeyer, but not of them produces the mattes shown in the movie
pls tell me what tool to use and how to combine them in pairs for creating the new RGB plates
10x
February 3, 2005 at 8:35 pm #209313softer_vbParticipantHmm… mattes? The answer i gave above makes a mattes for each channel which u then recombine into a new rgb image. I was replicating the process as its describe in the videos on the aviatorvfx.com site and it came out a little too funky i thought, so i am pretty sure that they are using some specific comp operation (add, multiply, lighten, over and so on) to produce the new RGB channels but they dont mention it in the video.
February 3, 2005 at 9:48 pm #209315AnonymousInactivehey guys, you can look at my flow to checkout… 😉
http://www.inkietos.com/X/3_Technicolor.flw
😉
February 3, 2005 at 10:12 pm #209319AnonymousInactiveyo
10x a lot 🙂
February 3, 2005 at 11:22 pm #209310Keyser_SozeParticipant_joro wrote:yeah, i’ve seen this – that’s why i’m askingthe problem is that i can’t make the mattes
i tried difference keyer, lumakeyer, ultrakeyer, but not of them produces the mattes shown in the movie
pls tell me what tool to use and how to combine them in pairs for creating the new RGB plates
10x
This is how i think it works… if you read the text at AviatorVFX:
“In short, natural skin tone was achieved by filming two black and white strips of film (with a red and green filter on the lens) … By digitally re-filtering the layers using a version of a primary color matte.” … If you picture a density matte of the blue areas of the film only (grey in the blue area and white in the non blue)”What you will need to digitally emulate is those red, green and blue filters to get the “density matte” of the RGB channels. That result you will later combine. I’m not exactly sure how the actual analog colour filter works but I guess you could simulate it through a keyer by keying your original footage on pure red, green and blue respectively. You will probably need to go back and tweak your key to get a nice result. Then multiply the color filter mattes that you get with your original r/g/b channels as described on the VFX site.
Maybe that’s what was in Deepray’s flow but I cannot say because I’m not using DF. So you might have the answer already. Good luck anyways.February 9, 2005 at 10:31 am #209316AnonymousInactiveInteresting and revelator tread here… 😉
http://www.vfxtalk.com/forum/showthread.php?t=3515
😉 (custom tool is the answer… it performs the matematical operations betwen channels… 😉 )
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