You’ll create a significant number of splines during your tenure as a roto artist. When and how you create these shapes can play a pivotal role in the speedy completion of a shot.
First, you want to create your shapes on a frame in which that particular focus object is clearly defined and completely in view. When you create shapes for focus objects when they are at their clearest, you’re extending the life of that shape’s use as it relates to the focus object.
If our job is to isolate the young woman’s screen left forearm, we would need to establish the initial contour of our spline on the frame where the focus object is clearly in frame and not being skewed by perspective. When you’re first getting started on a particular ...