I’ve posted the following in another topic earlier and I just found out this topic, so I’m copying the content here as well. I’ve tried to find a good example and I’ve prepared some material to show.
NB: these are shots with a camera on the unscaled VR view displaying on the monitor (they are not screen captures) and they are exactly representing what I can see through the lenses.
First case: shimmering on buildings:
You can clearly see in this video the shimmering on small buildings. What you can’t see much, because I had to cut the video for posting, is that the shimmering is showing a pattern repeating in a cycle.
Also worth noting, near the group of buildings located 1/4th of the frame from the left, and 1/2 of the frame from the top, is that only the smallest buildings edges are shimmering but not so much on the larger buildings.
Second case: shimmering specular/reflections:
NB: Please pay attention to these two specific locations:
Besides the same shimmering on the buildings like in the previous video, you can also clearly see how the specular and/or reflection is showing a pattern repeating in a cycle too.
Hope this helps!