StackGL (http://stack.gl) is an open source WebGL project with an interesting approach to building WebGL applications. Instead of being bundled as a single library, it's an ecosystem, comprised of many small, lean modules, inspired by the Unix philosophy.
Unix philosophy
The Unix mindset is a philosophical approach to writing minimalist, modular software, often expressed with the mantra "do one thing, and do it well!". For more information, please visit the following URL: https://en.wikipedia.org/wiki/Unix_philosophy.
The Unix mindset is a philosophical approach to writing minimalist, modular software, often expressed with the mantra "do one thing, and do it well!". For more information, please visit the following URL: https://en.wikipedia.org/wiki/Unix_philosophy.
Unlike many 3D engines, StackGL emphasizes lean, modular code that is focused on writing shader code. That being said, be sure to visit their website, as it includes extensive documentation and demos that will help you master this approach.