====== Physics ======

==== Physics.CapsuleCast ====
==== Physics.CapsuleCastAll ====
CapsuleCast may sometimes return invalid an 'invalid hit', where ''hit.distance == 0'' and ''hit.point == (0,0,0)'' ((It's not documented for all casts, but it is documented for SphereCastAll: https://docs.unity3d.com/ScriptReference/Physics.SphereCastAll.html)). By the documentation, this should only happen when the starting cast position already overlaps a target geometry. 

Occasionally, however, CapsuleCast may return an invalid hit in certain uncommon but valid cases. For example, hitting a triangle mesh exactly edge on((ie. ''ray.direction == colliderTriangle.normal'')). Adding a small fudge value to the cast direction can alleviate this.