warp.closest\_point\_edge\_edge
===============================

.. function:: warp._src.lang.closest_point_edge_edge(p1: vec3f, q1: vec3f, p2: vec3f, q2: vec3f, epsilon: float32) -> vec3f

   .. hlist::
      :columns: 8

      * Kernel
      * Differentiable

   Find the closest points between two edges.
   
   :param p1: First point of first edge
   :param q1: Second point of first edge
   :param p2: First point of second edge
   :param q2: Second point of second edge
   :param epsilon: Zero tolerance for determining if points in an edge are degenerate.
   :param out: vec3 output containing (s,t,d), where ``s`` in [0,1] is the barycentric weight for the first edge, ``t`` is the barycentric weight for the second edge, and ``d`` is the distance between the two edges at these two closest points.
   
   :returns: Barycentric weights to the points on each edge, as well as the closest distance between the edges.