This document discusses the past, present, and future of WebGL. In the past (2011-2015), WebGL support was limited and performance was low. Today, full browser support exists including mobile, performance has improved, and many frameworks like Three.js have been developed. Looking forward, WebGL 2.0 will provide more features but has a way to go for full support, while WebAssembly may provide a new way to use WebGL beyond asm.js.