glsl infinity constant

Question

Does GLSL have any pre-defined constants for +/-infinity or NaN? I\'m doing this as a workaround but I wonder if there is a cleaner way:

// GLSL FRAGMENT SHA         


        

Answer 1

There are no pre-defined constants for it, but there is the isinf function to test if something is infinity.

While I'm at it, are there constants for other things like FLT_MAX FLT_EPSILON etc the way there are in C?

No, there are not.