Hi David,
Can you please share the Mocha project? If possible please share the first frame of the shot as well for reference.
Instead of Apply Matte, do you get the same result if you “convert splines to native AE masks”? Also curious if the same issue happens if you render and export your mattes externally out of Mocha? (Export rendered shapes).
Here’s confirmation of the bug with Apply Matte. I converted the splines to AE masks in the plugin and they are correct in the right eye. Here’s a screen grab with the AE masks visible and the matte applied. The right eye matte is getting data from the left eye splines for the left leg and foot:
Thanks for that confirmation. I would suspect that your best available workaround will be to render these out of Mocha as mattes. I will see if I can recreate on my end.
I tried rolling back all the way to version 6.0.3 and still had the same problem. I’m wondering if it might be due to an AE update? I’m using AE version 16.1.2.
I know this has worked fine before so something’s changed somewhere.
Please keep me posted and let me know if you still want to see my project.
I just did a test with both Mocha Pro 6.1.1 and 6.1.2 inside Adobe AE 16.1.1 and could not reproduce the problem. I am updating AE now and will let you know.
Motion blur is keyframed on many of the splines. I’ll do a test on a small section and see if that helps with the motion blur artifacts. I’m not sure it will help with the stereo spline issue but maybe it will. Will test and let you know.
I’ve just done a base test and it’s definitely a problem with the motion blur settings in Mocha not working in stereo. Turning them on only renders the left matte as far as I can tell, while turning them off renders correctly. I’ll try to regress this if you think this was working correctly before.
I just confirmed that yes, turning off motion blur fixes both the stereo spline issue and the artifacts. My mattes are now rendering properly with motion blur off.
I must not have been using motion blur on previous stereo roto sessions.
There’s a lot of motion blur in this project and it would be very useful to have it working for this job.
Is there any previous Mocha version where motion blur works properly in stereo?
Ok: The bad news is it doesn’t look like motion blur works in stereo even as far back as v5.6.0.
This means you’ll have to either:
a) Manually feather the blur with edge width
b) Use third-party motion blur in your comp.
We’ll investigate the problem, but unfortunately I don’t have a short-term solution for you at present