This may be related to #1025. There are also mentions of reduced depth precision with GL in the source code, but I couldn't find anything mentioning this specific issue.

While implementing a custom viewport based on re_renderer, I noticed a strange behavior when lines and points have a depth offset value. There seems to be some sort of parallax effect when the objects are not centered in the view. The effect is more pronounced the larger the offset value is. In the video below, I used a value of 200 for the manipulator gizmos and 0 for the spiral objects.

To Reproduce
Steps to reproduce the behavior:

1. Create a viewport
2. Add points and lines to it with different depth offsets
3. Move the camera in the viewport
4. Run in (web)GL

Expected behavior
The depth offset does not cause any translation based on the camera position. In the video above that would mean that the gizmos stay centered on the spirals.

Rerun version
0.12.0

Additional context
Things look as expected with the vulkan backend.