ohnePixel booted up Five Hearts Under One Roof on stream with an eye tracker running, and the overlay did exactly what you’d expect.
The Korean live-action romance game threw up a scene with all five of its main women in swimwear. On screen, a small marker showed viewers roughly where ohnePixel was looking in real time.
The marker didn’t stay still. It moved across the lineup, drifted down the frame more than once, and kept coming back to the woman in white, the character viewers identified as Gran. Chat clocked his pick long before the game asked him to make one, and Gran appeared to be his selection anyway.
For anyone who missed it, Five Hearts Under One Roof is an FMV dating game. No 3D models, no anime art, but real actors, prerecorded scenes, and branching choices. The player lives under one roof with five women, and each one is a separate romance route.
That format is built for streaming. Every choice turns into a chat argument, and character rankings keep going long after the stream ends. Gran seems to be the clear crowd favorite, with Mal-sook usually named second.
Eye trackers themselves are simple enough. A camera and infrared lights watch your eyes, software finds your pupils and the reflections on them, and a quick calibration maps eye position to screen position. After that, the software estimates your point of gaze and draws it as a dot or trail.
It’s not perfect. Lighting, glasses, head movement, and screen distance all affect accuracy, and the marker can lag behind fast eye movements. Subtitles sitting at the bottom of the frame can also make innocent reading look like something else entirely, a defense a few viewers offered on his behalf.
So the overlay showed where he was looking, roughly. It didn’t prove anything about what he was thinking.
