Pencil Tracking Prototype v4.3

Model: not loaded
This is the whiteboard. Ink lands here, decoupled from the camera view. Point with your index finger (other fingers relaxed/curled) to draw. Open your palm (all fingers extended) to erase around your hand. Pick tool/size from the toolbar in the panel — that's the only way to change them now.
Camera (drag me)-
Point at each glowing target and hold still for ~1s
Status idle
Performance mode full

Tool & size

Size 4px

Board calibration

Maps your pointer onto the whiteboard plane so drawing stays accurate off-center or at an angle. Optional — works uncalibrated too.

Calibrationnot calibrated

Physical Pen Mode

Automatic (v4.4): tracking switches to a detected pencil/pen tip on its own when one is held in frame, and falls back to your fingertip when it isn't — no toggle needed. Experimental (may misfire in cluttered/low-contrast scenes, see README); the checkbox below is an optional manual override plus the HSV color-calibration accuracy boost.

Pencil detectedno
Advanced / debug
Handnone
Gesturehover
Hand shape-
Tracking sourcefingertip
Shaft confidence-
HSV pen calibrationnot calibrated
FPS-
Stroke count0

Stroke event stream

Waiting for camera…