This is a technical paper, but it has a quite conversational abstract and introduction that is easy enough to follow if you have some experience with mesh model

This is a technical paper, but it has a quite conversational abstract and introduction that is easy enough to follow if you have some experience with mesh modelling: https://www.graphics.rwth-aachen.de/media/papers/337/learning_direction_fields_lowres.pdf https://www.graphics.rwth-aachen.de/media/papers/337/learnin...