Neat! I remember contributing the expression parser code for the Knoll et. al 2009 work that you cited in your SIGGRAPH paper. That just rewrote a single user

Neat! I remember contributing the expression parser code for the Knoll et. al 2009 work that you cited in your SIGGRAPH paper. That just rewrote a single user-friendly expression into nested function calls to our IA library in GLSL, without any sort of optimization. You've clearly taken things waaay farther. Nicely done.