One place a ray segment crosses the surface of a solid, as manifold.evaluate.rayCast reports
it: the triangle's original face, how far along the segment it lies as a fraction of the
segment's length (0 at the origin, 1 at the endpoint), the point and the surface normal there.
One place a ray segment crosses the surface of a solid, as
manifold.evaluate.rayCastreports it: the triangle's original face, how far along the segment it lies as a fraction of the segment's length (0 at the origin, 1 at the endpoint), the point and the surface normal there.