The Möller–Trumbore ray-triangle intersection algorithm, named after its inventors Tomas Möller and Ben Trumbore, is a fast method for calculating the intersection of a ray and a triangle in three dimensions without needing precomputation of the plane equation of the plane containing the triangle.
>>> vertices = np.array([[0.0, 0.0, 0.0], [0.0, 10.0, 0.0], [10.0, 0.0, 0.0]]) >>> ray_origin = np.array([1.0, 1.0, 1.0]) >>> ray_direction = np.array([0.0, 0.0, -1.0]) >>> intersection = ray_triangle_intersection(vertices, ray_origin, ray_direction) (1.0, 0.1, 0.1)