Hey Everybody,
I got a question regarding the use of transformation data in NUKE, and how to avoid multiple resampling of my footage to avoid unneccessary loss of sharpness (say, stabilize first =resample1, animate ontop = resample2, additional grade=resample3 and so on, of course usually I would grade first but track the original footage). Coming from Combustion, I used to work as folllows.
Let's say I got a clip which needs to be stabilized, and animated after that in a certain way, for example to focus on the actors face. In Combustion I would create a null object. Then track the background movement and apply this transform data onto my null object. Then I would reverse the Curves on the Null (to archive a stabilize) and parent the Footage as a Child to the stabilize-Null with the reversed transform data. To archive additional movement I would create a second null object and parent that as a Parent to the first stabilize-Null. This way I can add additional animation to the stabilized Footage WITHOUT resampling it twice. The Transform Data of the stabilize-null and the animation-null will be combined and only the combination of those will be applied ONCE onto the Footage --> ALOT sharper.
So how is something similar done in NUKE? First I stabilize my footage traditionally with a 2d track or with the help of a 3d track like explained in Franz Brandstaetters Tutorial http://franzbrandstaetter.com/?p=60 (thx so much for that one! great!). When I add an additional 2d transformation after the last stabilized reconcile3d node, I'm pretty sure the Material will be resampled TWICE. So is there a way to inject additional transform data into the curves which are created by the reconcile3d node? Or some way to animate an additional parented axis to the reconcile3d feature? And how would that be done traditionally with a 2d stabilize followed by a 2dTransform? Any suggestions?
Thx for your time, hope the explanations aren't too confusing
Louis