Every kind of frame.
Worth a closer look.

Hair · skin · fabric

Inspect separation between strands, skin texture and fabric folds. Play the video to see how they change in motion.

Windows · edges · reflections

Compare bright windows with shadowed contours. Look for natural light edges and continuous architectural lines.

Foliage · rock · river

Follow branches, rock surfaces and flowing water. Check for repeated details and flicker as the scene moves.