OptionalcolorContact point colour. Defaults to DEBUG_DRAW_DEFAULT_COLORS.
OptionalincludeAlso mark pointOnB. Defaults to false: the two points coincide except
while the surfaces interpenetrate or a contact is speculative (§31), so the
second cross is usually a duplicate — worth turning on precisely when
penetration is what you are looking at.
OptionalnormalNormal colour. Defaults to DEBUG_DRAW_DEFAULT_COLORS.
OptionalnormalLength of the drawn normal, in world units (the normal is unit length, so
this is the whole segment length). Defaults to 0.25; 0 draws no
normals.
OptionalsizeCross arm half-length for each contact point. Defaults to 0.05.
Options for collectContactPoints.