My question regards the difference of relative and absolute shape keys.
As it stands, relative keys are great for easy shapes and are measured on 0-1. Absolute keys are measured in frames and are used for deforming mesh in more complex ways than relative keys. If you want to use relative and absolute shape keys in the model, it has been suggested to use mask modifier and two overlapping shapes to differentiate the shape keys. This leaves a definite sharp line on the edge of masked parts.
Has anyone seen any examples or videos where someone has used the absolute keys?
I'm interested in this topic, but have not found any material so far in the internet.