def test_projection_matrix_updates_when_assigning_new_projection():
cam = Camera()
assert (cam.projection_matrix == cam.projection.projection_matrix).all()
old_projmat = cam.projection_matrix.copy()
cam.projection = OrthoProjection()
assert (cam.projection_matrix == cam.projection.projection_matrix).all()
assert not (cam.projection_matrix == old_projmat).all()
assert not (cam.projection.projection_matrix == old_projmat).all()
cam.projection = PerspectiveProjection()
assert (cam.projection_matrix == old_projmat).all()
def test_projection_attributes_change_cameras_projection_matrix_uniform():
cam = Camera()
for proj in [(), PerspectiveProjection(), PerspectiveProjection()]:
if isinstance(proj, int):
cam, proj = Camera(name='Early'), PerspectiveProjection()
cam.projection = proj
elif proj:
cam = Camera(projection=proj)
old_projmat = cam.projection_matrix.copy()
old_pm_uni = cam.uniforms['projection_matrix'].copy()
assert np.all(old_projmat == old_pm_uni)
cam.projection.aspect = np.random.random()
assert np.any(cam.projection_matrix != old_projmat)
assert np.any(cam.uniforms['projection_matrix'] != old_pm_uni)
assert np.all(
cam.projection_matrix == cam.uniforms['projection_matrix'])
assert np.all(
cam.projection.projection_matrix == cam.projection_matrix)
assert np.all(cam.uniforms['projection_matrix'] ==
cam.projection.projection_matrix)