3 color layers (the Technicolor threat)

Home Page forums Applications Fusion 3 color layers (the Technicolor threat)

Viewing 11 posts - 1 through 11 (of 11 total)
  • Author
    Posts
  • #199899
    Anonymous
    Inactive

    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?

    #209311
    softer_vb
    Participant

    hey 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.

    #209314
    Anonymous
    Inactive

    thanks a lot… 😉

    #209317
    Anonymous
    Inactive

    can 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 😥

    #209312
    softer_vb
    Participant

    Here are some videos of the process:

    http://aviatorvfx.com/index.php?cmd=frontendScreeningRoom

    #209318
    Anonymous
    Inactive

    yeah, 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

    #209313
    softer_vb
    Participant

    Hmm… 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.

    #209315
    Anonymous
    Inactive

    hey guys, you can look at my flow to checkout… 😉

    http://www.inkietos.com/X/3_Technicolor.flw

    😉

    #209319
    Anonymous
    Inactive

    yo

    10x a lot 🙂

    #209310
    Keyser_Soze
    Participant
    _joro wrote:
    yeah, 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

    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.

    #209316
    Anonymous
    Inactive

    Interesting 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… 😉 )

Viewing 11 posts - 1 through 11 (of 11 total)
  • You must be logged in to reply to this topic.
Copy link
Powered by Social Snap