Show HN: Interactive 3D Function Grapher Using GLSL

I've been working on and off on this project for the past few years, but finally found the time to get it into a publishable state. It allows the user to input a 3D mathematical equation in the form 0 = f(x, y, z), and will visualize it in real-time using glsl shaders. I've also added controls to manipulate and explore the equation interactively.

I wrote up a blog post explaining it in more detail as well, which can be found here: http://blog.mfirmin.ca/glsl-function-grapher/

Any feedback on the app or blog would be highly appreciated. Thanks!