Struct Ray

Example

Ray r = Ray(Vector3f(0, 0, 0), Vector3f(10, 0, 0));
Sphere s = Sphere(Vector3f(3, 0, 0), 1);
Vector3f intersectionPoint;
assert(r.intersectSphere(s, intersectionPoint));
assert(isAlmostZero(intersectionPoint - Vector3f(2, 0, 0)));

Triangle tri;
tri.v[0] = Vector3f(5, -1, 1);
tri.v[1] = Vector3f(5, -1, -1);
tri.v[2] = Vector3f(5, 1, 0);
assert(r.intersectTriangle(tri, intersectionPoint));
assert(isAlmostZero(intersectionPoint - Vector3f(5, 0, 0)));