[BUG] Open3d feature visualization

[21Ansh]

Describe the bug
While running the example teaser_python_3dsmooth visualize_correspondences function is not displaying the correspondences properly.

Have you run the unit tests?

• [ X] Yes

Installed Dependencies
Ubuntu20.04, no cuda, and opend3d 0.15.2 is installed.

To Reproduce
OMP_NUM_THREADS=12 python3 teaser_python_3dsmooth.py

[PANFEI-CHENG]

Describe the bug While running the example teaser_python_3dsmooth visualize_correspondences function is not displaying the correspondences properly.

Have you run the unit tests?

• [ X] Yes

Installed Dependencies Ubuntu20.04, no cuda, and opend3d 0.15.2 is installed.

To Reproduce OMP_NUM_THREADS=12 python3 teaser_python_3dsmooth.py

I have the same problem.Have you solved is?

[rayguan97]

Have you solved this?

[jingnanshi]

It is likely that the new Open3D version caused this issue. I originally tested with Open3D 0.9-0.10 I think. You should treat the example as a reference, and see at what point does the visualization fail.