Actually there are 10x more OBJ formatted files than STL files. I created a Chrome extension to visualize these on GitHub as well: https://github.com/danielribe

Actually there are 10x more OBJ formatted files than STL files. I created a Chrome extension to visualize these on GitHub as well: https://github.com/danielribeiro/three-hub https://github.com/danielribeiro/three-hub Collada format is also very popular, particular with WebGL guys. The problem with diffing these is that you start diffing animations as well. Which literally adds a new dimension to the problem. If you take textures and materials into account, then the problem soon becomes really hard to visualize