[Josh Mannis]

John – thank you SO MUCH for putting this together! This is really above and beyond the call of duty. Once again I am swamped with other things but I will try this out sometime in the next couple of week hopefully. I’m not that experienced with AI so I might have some annoying questions at that point. Again I really appreciate the effort you put in here….

Best,

-j

[Josh Mannis]

Hi John –

Thanks for replying – and so sorry to leave you hanging! I got taken off the project where I was tracking this knife, and had to deal with a stack of other things, and now I’m back on it.

We don’t have any stock footage like that – but the problem is basically the same as the one outlined here at around 6:37 –

https://www.youtube.com/watch?v=fwHeHQ3Ea-c

However, the shot this lady is working on has tracking marker crosses on the surface. She also tracks using a portion of a thin frame going around the edge of the shiny table surface. The problem is that my shot is just a reflective knife moving around and turning in space – basically nothing but reflection, so I don’t know what to grab onto.

I’m attaching a simple iphone video that emulates what the knife is doing in our shot…

Thanks in advance for any help!!

-j

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KnifeMotion.mov 17 MB Quicktime - Click to view

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[Josh Mannis]

Yes – it is RGB. Is that right or wrong?

[Josh Mannis]

Hi Hector,

restarting AE / ending task doesn’t work, but thanks for the suggestion. In terms of problems in the file format – what should I be looking for?

Thanks,

-j

[Josh Mannis]

Thanks Eric – this is how I had it formatted:

Screenshot-2024-04-26-at-10.49.00 AM.png 272 KB Image File - Click to view

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[Josh Mannis]

Getting mocked at work is an important part of the process!

[Josh Mannis]

Thanks Andy! Unticking the perspective did it. I also was tracking a wall unnecessarily which might have been confusing the situation…

[Josh Mannis]

Hi Hector –

Thanks for your response! It actually turned out to be two things: 1. I found that there was an overlapping occlusion mask right over the object I was removing, and 2. turning off “perspective” on my floor and wall tracks got the planar movement under control.

Thanks again,

-Josh

[Josh Mannis]

Thanks Graham –

I’m actually not allowed to post it – BUT – the issue turned out to be a mesh expansion issue after all. I had it at the default value – the object being puppeted in the original clip has some movement of its own, and the mesh was getting confused about what was inside and what was outside. I set the expansion to 72 and that gave it enough elbow room.

Thanks again!

-j

[Josh Mannis]

Thanks – turns out it was problem with the track after all – it was picking up objects that confused it and made it jump around….