Cat and optical effect

Dora the cat disappears into the trees. This unusual optical effect occurs in cases where there is no direct sunlight and video shooting is done at an angle to the window.

In other cases, the result is a regular video.

Video: "Guard cat Dora on duty"
https://rumble.com/v3uhc1g-guard-cat-dora-on-duty.html?mref=6zof&mrefc=55