They also have been building a javascript version! A few years ago (as part of the GSOC program) I worked on parts of their webgl renderer, and ended up adding

They also have been building a javascript version! A few years ago (as part of the GSOC program) I worked on parts of their webgl renderer, and ended up adding a feature to threejs as a result! Sergey has done a great job with it. Try it in your browser: https://root.cern.ch/js/ https://root.cern.ch/js/