Warren Moore

so I was wondering, can u calculate the intersection point of a sphere wo/ using sqrt?

@0martint The ray params are the roots of a quadratic eq, but you could try replacing sqrt with an iteration or two of Newton-Raphson.

@warrenm thanks, I'll try that!

@0martint With the usual caveats of course! (loss of guaranteed convergence, premature optimization)

@warrenm yeah, well I guess I'd be better off with adding an octree or something like that, but I want to optimize the pure raytracing out