I saw this example where the straight sections of a curve are represented by just 1 face, while curved sections have more subdivisions. How can I achieve this effect in Blender 3.4?
This group will return the unsigned edge-angle, on each point of an (evaluated) curve:
..By, for each point B of ABC, taking the dot-product of BA and BC. On acyclic curves, it preserves end-points.
It can be used like this to dissolve control-points at edges which meet at less than a threshold angle, given in degrees: