Returns the distance between two 3D points.
Replaced by: hou.Vector3
See also: pointdist, uvdist
distance(x1, y1, z1, x2, y2, z2)
A.K.A. sqrt((x2-x1)^2 + (y2-y1)^2 + (z2-z1)^2).
sqrt((x2-x1)^2 + (y2-y1)^2 + (z2-z1)^2)