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View Full Version : Preparing for stereoscopic editing: Mirrored Right Eye?


Wouter Jansen
10-14-2009, 03:38 AM
Hi All,

I'm a total newbie with regard to Stereoscopic editing, and currently I'm in the process of transcoding R3D material in Avid MetaFuze for offline in MediaComposer.

One thing strikes me, and has me a little worried. The 'Right Eye' camera images are all flipped (like looking into a mirror), which results in an over/under stream in Avid of which the top half is mirrored to the bottom half. I do not (yet) have a 3D-monitor in my studio so I have no way of checking whether this is correct or not, and the Avid forums could also not (yet) provide me with an answer to this question.

If anybody here could shine some light on this, that would be greatly appreciated. And of course, the producer wants a first cut by friday ;-)

Thanks,
Wouter
Wouter Jansen
10-14-2009, 05:01 AM
Okay, so with a little browsing around, my guess is that the material was shot using a beamsplitter which causes one of the images (eyes) to be flipped.

So my steps probably are:
1. correcting the flipped image
2. transcoding both 'eyes' in MetaFuze

Please correct me if I'm wrong.
Anybody know what the best way is to flip the one eye back to the correct perspective?
Markus Lanxinger
10-19-2009, 04:05 PM
Hey wouter,

I have not worked with Avid in 3d yet but when I ingest material to the quantel pablo I have to go through and flip the eye before laying it off onto a stereo timeline. I wish the pablo would have an option to automatically flip the eye on the ingest.

As for Avid I am sure you will go through the same procedure. I doubt there is a built in auto-flip function for footage acquired with a beam splitter rig in Metafuze. So transcode first, then flip, then transcode again? I've only seen demos of the Avid 3d functions but it seemed to not offer a lot of options.

There are ways to flip the image during your shoot if you use a 3ality stereo image processor, that way you don't have to do it in post.

edit: to be precise we should use the term "flop" which means vertical flip :)

hope that helps a little bit :)