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Activity Forums DaVinci Resolve 8.2 Alpha channel

  • 8.2 Alpha channel

    Posted by Andrew Sableton on August 23, 2012 at 7:34 pm

    I have a ProResHQ FCP7 sequence with ProResHQ media except for some FX material that is in animation codec with alpha channels. Should I bake these animation codec clips as ProResHQ and then somehow extract a matte from them to import into a node in DAVINCI? Will this then work in a round trip?

    I’m a little confused as to how to get this to work…..

    S

    Eric Johnson replied 13 years, 8 months ago 4 Members · 5 Replies
  • 5 Replies
  • Andrew Sableton

    August 23, 2012 at 7:36 pm

    Also Davinci seems to refuse to see the animation codec QTs at all – I look in the folders where they should be through the DAVINCI browse page and these clips do not appear, although they are in the OSX finder….

  • Joseph Owens

    August 23, 2012 at 9:07 pm

    So, a couple of things.

    First of all, if you go looking at the https://www.blackmagicdesign.com/media/2588311/davinci_resolve_8.2_supported_codec_list.pdf

    you won’t find the Animation codec. It won’t appear on a lot of lists.

    Its a bit long in the tooth as a “lossless” codec, its only adavantage now being that it is one of the few that can carry an alpha channel, but then there’s ProRes 444.

    Resolve 9 can use alpha channels for matte purposes, but not 8.2. You will have to extract the alpha channel somehow and export that (exact length of the original clip) as a recognized codec and attach it to the source clip as an external matte. You cannot export an alpha out of Resolve.

    jPo

    “I always pass on free advice — its never of any use to me” Oscar Wilde.

  • Andrew Sableton

    August 23, 2012 at 9:20 pm

    Ok thanks JPO – what would your process with FCP be to ‘extract’ the alpha?

    S

  • Sascha Haber

    August 24, 2012 at 6:15 am

    Please just upgrade, you will love it and need to learn a cumbersome workaround .

    A slice of color…

    DaVinci 9b3 OSX 10.8
    MacPro 5.1 2×2,4 24GB
    RAID0 8TB
    GTX 470 / Quadro 4000
    Extreme 3D+

    Colorist / Aerial footage nerd
    https://vimeo.com/saschahaber

  • Eric Johnson

    August 24, 2012 at 8:32 pm

    For a luma matte, you can load your clips in the viewer, change your view from RGB to ALPHA. You should see a B+W of what your alpha should be… and export.

    I’m sure there are other ways. That’s the way I know of.

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