Latest post Sat, Oct 14 2017 8:11 AM by Bruno M. 2 replies.
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  • Wed, Oct 11 2017 5:17 PM

    • jimmy23
    • Not Ranked
    • Joined on Fri, Mar 28 2014
    • Posts 41
    • Points 505

    Four corner tracking

    Hi all,

    I am trying to comp a video of a weather report onto a TV in a non-static shot using the Four Corner Tracking method with 3DWarp. No issue in regarding to it tracking however during the shot the TV goes out of focus, bluring the video isn't an issue but the edges of the image are still very hard and I can't seem to find a way to feather the outside. I am turning up the "softness" in the Boarder category but it isn't doing very much. I'm aware that there are feather options in other effects such as AniMatte so is there a way to apply it to the image we are tracking to the TV? I hope that makes sense...

    Cheers,

  • Fri, Oct 13 2017 10:03 AM In reply to

    • jimmy23
    • Not Ranked
    • Joined on Fri, Mar 28 2014
    • Posts 41
    • Points 505

    Re: Four corner tracking

    Anyone able to help?

  • Sat, Oct 14 2017 8:11 AM In reply to

    • Bruno M
    • Top 500 Contributor
    • Joined on Thu, Feb 11 2010
    • London, UK
    • Posts 358
    • Points 4,415

    Re: Four corner tracking

    You're coming up against the limitations of the Avid effects - OK for very basic effects but severely lacking for any more advanced work. As you mentioned, it is possible to use the Animatte effect to further soften your edges, but you'd need to separately animate the matte to follow your original track, so it becomes a painful process.

    If you have Boris effects you can use their corner pin and match move tools, where you'll find better edge softening.

    It's worth remembering that softening is not the same as defocusing, and an experienced eye will spot it straight away. You really need to use a proper camera defocus or bokeh effect to achieve convincing edge defocus.

    The answer is really to use more specialised effects software (such as After Effects) to achieve what you want. This will of course mean getting into round-tripping between MC and AE, which is less convenient than having everything within one application. If you're feeling adventurous you could install Blackmagic's Fusion software and the associated AVX Connect plugin, which will allow you to send clips on your Avid timeline over to Fusion for compositing.

     

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