Its a bit of a re-model to wrap one’s head around how the group “levels” of nodes are applied — almost as if there are three color correctors at work. It is equally true that the *overall* grade exists in three parts and each are stored separately and need to be applied one at a time to accomplish a “copy” to some other clip that might be part of the group, but might benefit from some part of the grade. At the same time, preserving the independence of each individual within the family allows for more flexibility for scene-matching within the group.
In telecine days, we had a certain amount of access to this approach because we could think of the telecine device and the control/grade system as two corrections. The Cintel URSA had a built-in correction system that was directly accessible by daVinci (in fact as I recall, there was a version called a “Leo” that only controlled the telecine and had no correction capability itself) that you could do a PEC-match (like a pre-amplifier balance) which could be passed forward to the daVinci color correction system itself — so if you were working with a “look”, you could keep it, in a similar way to a “post-clip” correction, while tweaking the values coming off the film directly from the telecine — like the “pre” or “clip” layer, filter, whatever so to speak. I know that’s not what it’s really called.
jPo
“I always pass on free advice — its never of any use to me” Oscar Wilde.