TyFlow Venation

Simple but effective algorithm for creation venation patterns (trees, veins etc). Idea is simple - each particle is affected by two forces - it's attracted to closest neighbor (target) and it's attracted to some attractor object (point helper). Algorithm is described in the "Modeling and visualization of leaf venation patterns" Siggraph paper. You can control the pattern by adjusting ratio between these two forces. If attracted to each other particles are too close (within some die radius) - one particle is deleted (particle with a smaller ID). "Size" script is deleting particles within die radius range and accumulating particle sizes (also it has sizeLimit parameter). "Vel" script calculates particle velocity - you can set forces ratio and particle speed here. Also you have to pick attractor helper as script accesible object in this script. File: https://rman197.gumroad.com/l/pyzdoj