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I am compositing a model into a video, in which a mesh circles around an element that is depicted in the video.

Since there is a little bit of movement, it would be better to block the obscured half with an invisible object than to just cut the mesh, but I am not finding a way to do this elegantly.

Is there a way to approach the problem this way? An object that basically makes anything behind its silhouette transparent? Or is there a better way to approach?

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    $\begingroup$ Two basic ways to do it, one with a mesh that uses a holdout material, effectively creating an alpha channel. Or with a mask that you can use in the compositor. The second option can also be used in conjunction with trackers to automate motion, as in rotoscoping. $\endgroup$
    – susu
    Commented Dec 30, 2020 at 8:00
  • $\begingroup$ Perfect, thank you @susu $\endgroup$
    – tamago
    Commented Dec 30, 2020 at 20:53
  • $\begingroup$ blender.stackexchange.com/questions/117572/… $\endgroup$
    – susu
    Commented Dec 30, 2020 at 21:06
  • $\begingroup$ blender.stackexchange.com/questions/183081/… $\endgroup$
    – susu
    Commented Dec 30, 2020 at 21:09

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