def test__look_at(self):
from core.transform import Transform
from maths.point3d import Point3d
from maths.vector3d import Vector3d
pos = Point3d(1.0, 0.0, 0.0)
at = Point3d(1.0, 0.0, 1.0)
up = Vector3d.get_up()
t = Transform.create_look_at(pos, at, up)
foo = Vector3d(1.0, 0.0, 0.0)
self.assertEqual(foo * t, Vector3d(0.0, 0.0, 0.0))
def pbrtLookAt(e: Vector3d, l: Vector3d, u: Vector3d):
global curTransform
for i in range(len(curTransform)):
curTransform[i] = curTransform[i] * Transform.create_look_at(e, l, u)
