Math expression evaluation in Functions and Pixel Processors
When writing functions, or pixel processors.
It becomes rather cumbersome, hard to read, very prone to human error and pretty much breaks your flow when you have some mathematical expression and then need to break it apart into nodes.
Being able to outright write simple expressions would be incredibly beneficial (in a similar form to Nuke or Houdini).
sqrt(x*x + y*y) + min(x, y)/max(x, y)
Bonus points for a ternary operator:
(x < 1) ? (1 - x) : 0
Even if it was just limited to taking in explicit floats, and outputting a single float, that would be incredible.