Finding Apex of a Curve

x-posting here from the Jump / Fall mechanic post because I think its pretty neat and could be applied to other situations in which you have a curve and need to find the apex.

TL;DR: Sample two vectors along the curve comparing the computed normals to find where they differ; re-run with smaller and smaller step sizes depending on accuracy desired.

Critical Importance: Finding Jump Apex | ZeroCool Dev Wiki - Gameplay | Math | Unreal | C++docs.zerocooldevelopment.com