My computer accidently restarted at the Publishing Synth stage.

Sadly, at this point, I believe that we have to recalculate the entire synth. Whatever uploading was completed before our computers restart doesn't repeat itself, as I'm sure you've heard by now, but the photo analysis is repeated even though it has been completed once already.

Blaise mentioned here that "...new synther work [is] needed to not continually redo calculations".

Whether or not this would address our problem with something that wasn't published the first time, I don't know, but it certainly seems to me that it speaks to having a completed synth log/point cloud model on your hard drive so that an updated synther could compare any new additional photos to the already completed work. As long as this new version of the synther was able to look in the temp/photosynther directory and find everything from before the reboot, theoretically you might be able to just add a new photo to that synth and recalculate just that one additional photo against all the calculations that your you completed before.

Somehow I suspect that even a new synther that is specifically designed to "resume", as it were, would only recognise synths that had made it to the server already, but I for one would certainly absolutely love it if it was able to resume the upload of a synth that was already completely calculated and waiting on my hard drive.