[Martin Brennand]

3108_mbtest.aep.zip

Try this. The steps I took were:

1. Drag the footage into a new comp
2. Drag the insert on top
3. In mocha Select “rough track” and hit Align Surface.
3. Export the track as a CP with motion blur
4. Paste the track data onto the insert in AE
5. Go back to mocha, export all visible shapes
6. Create a new solid and paste the mocha mask data
7. On the footage layer, set track matte to the alpha of the above layer.

Martin Brennand | Product Specialist | Imagineer Systems

[Martin Brennand]

Ok, I think I can see what is going on here.
When you paste an animated mask onto the existing tracked layer, you’re actually getting two tracked items (the layer and the mask), so the animate shape is going to shift at twice the rate of the tracked layer. For this kind of thing you can do one of the following:

1. Just use the tracking data on the colour layer and then draw a static mask. Since the tracking is moving the inserts you don’t need to animate the shape.
2. Apply the masking and the tracking to separate layers and use the masking layer as a track matte. This way if you’ve done manual changes to your roto in mocha you’ve got the flexibility of being able to use both the shape and track data.

The add/multiply thing is for handling multiple roto shapes for heavy roto. This is a fallback from the shape effect (as opposed to using the AE masks). If there is a preferred workflow you’d like to see, let us know

I hope this helps!

Martin Brennand | Product Specialist | Imagineer Systems

[Martin Brennand]

Thanks Matt, i’ll take a look now.

Martin Brennand | Product Specialist | Imagineer Systems

[Martin Brennand]

Are you using a corner pin or a transform track?

If you are using corner pin, is the insert layer the same size as the composition? If not you will have to adjust it with a manual corner pin first, precompose it and then use Align Surface in mocha before you export.

Martin Brennand | Product Specialist | Imagineer Systems