Lid Angle Lab

θ 110.0° reference 110.0°

01

Keep one eye position fixed. Calibrate at the current lid angle, then move the lid slowly. The target is deliberately distorted on the LCD so it appears steadier from the calibrated viewpoint.

Input

MacBook lid sensor

Checks for Apple HID 05AC:8104 · report 1.

Current lid angle

110.0°

Manual simulator 1°179°

Calibration

Physical model

centimeters

Reference angle Screen width Screen height Eye X · right Eye Y · up Eye Z · toward you

Sensor smoothingExponential + low-latency tween α

Live geometry Plane valid

H · reference → physical

Coordinate system

Hinge center is the origin. +X points right, +Y points up, +Z points from the hinge toward you. At 0° the lid lies over the keyboard; at 90° it is vertical.