Quad Tree

• source: examples/src/04-space/quadtree.ts

Sparse tree

{    objectNum: 20;    maxObjectsInLeaf: 5;    maxTreeLevels: 2;}

Aggressive split

{    objectNum: 50;    maxObjectsInLeaf: 2;    maxTreeLevels: 4;}

Dense tree

{    objectNum: 500;    maxObjectsInLeaf: 20;    maxTreeLevels: 4;}