Creating seams On the OpenGL Camera

Does anyone know how to create seams on an OpenGL camera (similar to the black vertical lines on the attached photo).

I have a 3D scene wherein the camera navigates and I need to display the viewed output with seams/bevels similar to the image below.

Does anyone have any idea?

Doesn’t look like the adjacent pieces are even contiguous, just that you’ve got some bars drawn on top of the scene. So just draw some bars on top of the scene.

If they were contiguous, you could do some off-axis (assymetric) perspective to render the left and right.