4. Why not solve every shot without rolling shutter compensation and turn it on only if there are rolling shutter related problems?
If a client prefers to avoid rolling shutter compensation in their pipeline when a matchmove of satisfactory quality can be found without it, such as when the amount of motion is small, or the effect is a bit more forgiving, Yannix will normally solve each shot both with and without rolling shutter compensation. If the effect on internal QC is not too noticeable, the client can either request that we deliver both versions, or just the “without rolling shutter compensation” version.
The biggest problem with this approach is about time delays. In VFX as in other industries, “time is money”. On average Yannix will deliver shots within about 3 working days of receiving the plates. (Assuming bid is approved rapidly.) 95% of these shots are approved on first delivery. Any kickback and discussion can easily add several more days if we consider the time for the client to review and generate notes, then Yannix needs to replicate the issue to confirm it wasn’t introduced at the clients facility (by using a modified BG plate, survey or adjusting camera parameters) and then any possible discussion that might become necessary if the issue is caused by inaccuracies in the survey or rolling shutter.
Any delays in delivering a full quality QC’d matchmove will delay the rest of the VFX pipeline, and our goal is to make sure that the matchmoving is as reliable as possible as quickly as possible so that there is more time for eventualities in other parts of the VFX pipeline.
Additionally, when a client asks us to attempt to address rolling shutter issues via other camera parameters, this often leads to several rounds of back-and-forth because those parameters are usually very imperfect solutions, and this introduces additional artifacts. This leads to even further delays and cost overruns.