That's mah fork: https://github.com/gameofbombs/
This branch is also known as dev-experimental-geometry and pixi v4.1. It is the bleeding edge, and only about 5% of it was discussed as PRs in main pixi.js (like https://github.com/pixijs/pixi.js/pull/2465 )
Demos: http://gameofbombs.github.io/pixi-bin/
Best demo is outdated, though it will be converted to pixiv4 soon: http://monsterisland.chimeracompanygames.com/lux-demo/index.html (use mouse and QE)
Changes:
1. 3d