No masking before tracking 3D Cam?

Hi Imagineer,
Just wondering why there isn’t an option to EXCLUDE any moving areas in the 3D calculations with V3?
For example, it seems a little counter-intutive to wait for it to render, THEN start deleting points where you don’t want them, …then wait for it to Recalculate,…then delete more points, etc…
So my other question is:
Should I be concerned about moving objects that should NOT be tracked?
Does it effects the areas (3D cam) that i need tracking data on?
Just some thoughts,
Lou

Hi Imagineer,

Just wondering why there isn’t an option to EXCLUDE any moving areas in the 3D calculations with V3?

For example, it seems a little counter-intutive to wait for it to render, THEN start deleting points where you don’t want them, …then wait for it to Recalculate,…then delete more points, etc…

So my other question is:
Should I be concerned about moving objects that should NOT be tracked?
Does it effects the areas (3D cam) that i need tracking data on?

Just some thoughts,
Lou

Ok, I did something REALLY, REALLY ,REALLY STUPID.
Are you ready for this?..
I was using the new After Effects cs6 3D tracker tool. I was wondering why I could draw a mask around an object i wanted to exclude.
It seems that everyone now has a 3D camera tracker & I lost count of which one I was using at the time. :rolleyes: Sorry about that…
I should forward mt post to Adobe :smiley:

Ok, I did something REALLY, REALLY ,REALLY STUPID.

Are you ready for this?..

I was using the new After Effects cs6 3D tracker tool. I was wondering why I could draw a mask around an object i wanted to exclude.

It seems that everyone now has a 3D camera tracker & I lost count of which one I was using at the time. :rolleyes: Sorry about that…

I should forward mt post to Adobe :smiley:

:stuck_out_tongue: Hilarious.
Yeah, if you’re seeing markers, you’re not in mocha. We’re not that kind of tracker!
Have a great day.
Mary

Hi Lou,
I recommend you watch our videos about planar tracking on our website or check the documentation on the tracker itself. Steve Wright’s “learn mocha” is a great place to start. http://www.imagineersystems.com/learn-mocha
Our documentation on the tracker is here: http://www.imagineersystems.com/support/Documentation/tracking-basics
All our solves for every module are based on the planar tracker, so if you understand how that works you’re 90% there. We also have a video about how mocha thinks here: http://www.imagineersystems.com/videos/how-mocha-thinks/view
But basically the thing you need to know to hold out shapes from one another is that mocha holds layers at the top of the layer pile out of layers beneath them automatically as part of our workflow. So garbage matte out FG occlusions.
What do you mean render and delete points? We don’t render when we track. That sounds like you’re using a camera tracker based on features. Or something? Can you be a little bit more specific? Where are you getting that workflow from?
Cheers,
Mary

Hi Lou,

I recommend you watch our videos about planar tracking on our website or check the documentation on the tracker itself. Steve Wright’s “learn mocha” is a great place to start. http://www.imagineersystems.com/learn-mocha

Our documentation on the tracker is here: http://www.imagineersystems.com/support/Documentation/tracking-basics

All our solves for every module are based on the planar tracker, so if you understand how that works you’re 90% there. We also have a video about how mocha thinks here: http://www.imagineersystems.com/videos/how-mocha-thinks/view

But basically the thing you need to know to hold out shapes from one another is that mocha holds layers at the top of the layer pile out of layers beneath them automatically as part of our workflow. So garbage matte out FG occlusions.

What do you mean render and delete points? We don’t render when we track. That sounds like you’re using a camera tracker based on features. Or something? Can you be a little bit more specific? Where are you getting that workflow from?

Cheers,
Mary

:stuck_out_tongue: Hilarious.

Yeah, if you’re seeing markers, you’re not in mocha. We’re not that kind of tracker!

Have a great day.
Mary

mocha v3’s solver uses planar tracking and the layer system, so you should be setting up your layers and shapes properly to avoid the moving areas that you mention.
This of this: if you have a back wall a floor and an actor in front. One layer would track the wall, one for floor and the the layer on top would be the actor. This stack should be set up closest to camera first.
View the surface and grid to make sure your tracks are good.
Then when you select the layers for camera solve, do not select the moving shape (actor in my example). Only solve for the plane that you have selected.
Hoepfully this makes sense, there are many videos on Imagineer’s site that explains how to avoid moving areas including Mary’s new video:
http://www.imagineersystems.com/videos/mocha-pro-v3-tutorial-difficult-3d-camera-solves/view

mocha v3’s solver uses planar tracking and the layer system, so you should be setting up your layers and shapes properly to avoid the moving areas that you mention.

This of this: if you have a back wall a floor and an actor in front. One layer would track the wall, one for floor and the the layer on top would be the actor. This stack should be set up closest to camera first.

View the surface and grid to make sure your tracks are good.

Then when you select the layers for camera solve, do not select the moving shape (actor in my example). Only solve for the plane that you have selected.

Hoepfully this makes sense, there are many videos on Imagineer’s site that explains how to avoid moving areas including Mary’s new video:
http://www.imagineersystems.com/videos/mocha-pro-v3-tutorial-difficult-3d-camera-solves/view