* Sampling : 
 - https://cs.dartmouth.edu/~wjarosz/publications/jarosz19orthogonal.html 
 - http://www.geometry.caltech.edu/BlueNoise/
 
* Vector Fields : 
 - https://www.cs.cmu.edu/~kmcrane/Projects/GloballyOptimalDirectionFields/index.html
 
* Winding Numbers (january): 
 - https://www.dgp.toronto.edu/projects/fast-winding-numbers/