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Activity Forums DaVinci Resolve Export Alpha?

  • Duke Sweden

    February 5, 2018 at 2:22 pm

    The magic box magically appears but instead of exporting a clip with a solid black background it exports a clip with a desaturated green screen in the background.

    I think I have to step away from all this for a while. It’s not fun anymore.

    Dell XPS 8920
    Intel i7 core 7700 build
    GeForce GTX 1050ti
    32 Gigs of RAM
    3 7200 RPM SATA Drives
    Windows 10 64-bit
    DaVinci Resolve 14.2

  • Bruce Gaber

    February 5, 2018 at 5:48 pm

    I tried this with footage that had an alpha channel built with AE, rendered it out with a DNxHD 444, brought it into DR, did all the steps outlined above to render it with the alpha channel and just ended up with an enormous file that still had the black background. How the heck do we get footage with alpha channels into DR for editing and rendering?

    Photographer / Motion Graphics Artist
    Vision Rising

    vimeo.com/BodhiBruce
    visionrising.com

    Dance Without Reason

  • Duke Sweden

    February 5, 2018 at 6:15 pm

    You can create a clip with an alpha channel and put a background behind it within Resolve but not export just the character with an alpha background., but working with images and backgrounds is a major PITA within Resolve.

    Also, you can’t mask a portion of an image and make it invisible so that you can stick your greenscreen character in between. In other words, if I have an image of a desk, I would like to trace the desk and blank out the rest of the image. The full image would be on top, then the green screen character, then the desk only image, making it appear as if the character is sitting behind the desk. I can do this with my eyes closed in Premiere Pro. I really wish they would fix these major annoyances in Resolve. I get much better keys in Resolve and I just enjoy using it. Premiere Pro has gotten really slow with 400 All-I footage but for now I have to use it when I make my green screen comedies.

    Dell XPS 8920
    Intel i7 core 7700 build
    GeForce GTX 1050ti
    32 Gigs of RAM
    3 7200 RPM SATA Drives
    Windows 10 64-bit
    DaVinci Resolve 14.2

  • Bruce Gaber

    February 5, 2018 at 7:36 pm

    Ya’ as much as I like the feel of DR and Fusion, this might just might be the deal breaker that makes me stay with AE/Pr

    Photographer / Motion Graphics Artist
    Vision Rising

    vimeo.com/BodhiBruce
    visionrising.com

    Dance Without Reason

  • Tero Ahlfors

    February 6, 2018 at 9:49 am

    [Duke Sweden] “Also, you can’t mask a portion of an image and make it invisible so that you can stick your greenscreen character in between. In other words, if I have an image of a desk, I would like to trace the desk and blank out the rest of the image. The full image would be on top, then the green screen character, then the desk only image, making it appear as if the character is sitting behind the desk.”

    You can do all kinds of keying/masking in Resolve. Just layer your clips in the timeline in the correct order and then make sure you run the alpha from your key/mask to the alpha output.

  • Duke Sweden

    February 6, 2018 at 2:26 pm

    Tried that. It masked out what I wanted it to, but it doesn’t show the clip underneath it, or the bottom layer which is the unmasked image.

    Dell XPS 8920
    Intel i7 core 7700 build
    GeForce GTX 1050ti
    32 Gigs of RAM
    3 7200 RPM SATA Drives
    Windows 10 64-bit
    DaVinci Resolve 14.2

  • Tero Ahlfors

    February 6, 2018 at 2:35 pm

    Can you snip a similar screenshot from your color page?

  • Duke Sweden

    February 6, 2018 at 2:50 pm

    Is it the same with nodes, where the bottom node is actually the top layer? Because when I switched the two image layers I got the masking effect I was looking for. The masked image on Layer 1 and the unmasked image on Layer 3, with the keyed clip in between on Layer 2.

    Dell XPS 8920
    Intel i7 core 7700 build
    GeForce GTX 1050ti
    32 Gigs of RAM
    3 7200 RPM SATA Drives
    Windows 10 64-bit
    DaVinci Resolve 14.2

  • Tero Ahlfors

    February 6, 2018 at 3:07 pm

    I have no idea what you’ve actually done so I can’t comment on your particular mystery.

  • Duke Sweden

    February 6, 2018 at 3:47 pm

    I saw a tutorial or two that pointed out that when you create multiple nodes, instead of the last node being the top layer (in the Premiere Pro equivelant), it’s actually like the first, or bottom layer.

    I was just wondering if the same was true of the timeline. Example. When I had it like this:
    Layer 3: Masked image
    Layer 2: Keyed clip
    Layer 1: unmasked Image

    The unmasked image covered everything. You couldn’t see the other layers. When I changed it to this:
    Layer 3: unMasked Image
    Layer 2: Keyed clip
    Layer 1: Masked Image

    Then everything looked right. I could see the unmasked image as the background, my keyed clip in front of it, and the masked image showing only the desk in the image in the fore ground.

    Color Page

    Edit Page

    Dell XPS 8920
    Intel i7 core 7700 build
    GeForce GTX 1050ti
    32 Gigs of RAM
    3 7200 RPM SATA Drives
    Windows 10 64-bit
    DaVinci Resolve 14.2

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