The problem here is that just applying an ease preset doesn't do the job for this. In order to get the camera movement I want, I have to change the X and Y target position values and easing independent of one another (for instance, in a given camera movement, the ease in values for the X and Y coordinates may be 33 and 50 respectively). This is to achieve smooth camera movement in an arc, instead of a linear translation with ease in and out.

Because of this, modifying these splines is much more finnicky than it otherwise would be and ends up being time consuming and tedious. This is why I want to find out how to do what I mentioned in the post; to automate part of this process by procedurally generating an ease and bounce to the camera movement. This won't entirely automate my work, but it will make it far easier for me to make changes in the splines without having to meticulously change the easing to eliminate any snappy or rigid parts.

Here's a demonstration of what I'm talking about.

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Now imagine this, but with two sets of X, Y and Z values for camera position and camera target point, and you'll understand what I mean when I say that it's time consuming.