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Difficult Mocha Track
Hi there,
Let me start by saying that I am still pretty much a novice when it comes to Mocha. I have dipped my toes a couple time and understand the basic functions, but I have yet to throw myself into a heavy duty tracking project… until now.
I recently competed in a 48 hour film project and bit off a little more than I could chew as far as vfx goes. We submitted what we submitted and it suffices for the competitions purposes, but as any neurotic filmmaker would, I’d like to finish this thing the proper way. I’m willing to put in some (or a lot of) hours as I know it will be required, but I’m hoping that I might be able to pull some tips and tricks from you folks before I end up pulling my hair out of the course of 80+ hours of frame by frame tracking.
Below is a link to the project file, but please tell me if you all need additional information:
https://drive.google.com/drive/folders/1RgmFMSgtgUoYdEJ6KwJa6ngIuXihQ9l3?usp=sharing
Essentially, I’m trying to create a portal pass-through effect. I filmed a plate of the background and then the same frame of our character going through a “portal”. It’s not perfect and we 10000000% should have filmed him in front of a green screen to make this a LOT easier, but what can I say? We were on 2 hours of sleep and a tight deadline.
You’ll see that I’ve begun some tracking of the thighs but it feels like a never ending hill. Maybe that is the case and I just have to tough it out, but I’m hoping you geniuses can make it a little smaller of a hill to climb.
Thank you in advance for any help!
-Zack
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4 Replies
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Do you have a finished example to review?
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No, this is as far as I’ve gotten while using Mocha. There is a very rough example done with Ae masks only (what we ended up submitting for the 48 hour film competition) if that’ll help get the point across…
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Basically when you roto there should be as little points as possible and you would want to roto in smaller parts eg. thigh-leg-foot and those might even be split in smaller parts to get more detail. Tracking a body part with Mocha might save a few keyframes, but unless the movement is really basic (no 3D rotation and no overlaps etc.) then I’d just roto manually from the start.
It’s kinda easy when you get into it but it’s time consuming.
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If anyone follows this thread, you might want to check out this 7hr Mocha training series. Its free 😉
https://borisfx.com/free-training/mocha-essentials/
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