Interactive explorer of the log-polar foveated sensor: a square raster on the left, the cone of directions it covers on the right, linked by hover or tap, with sliders for E2, the field half-angle and the profile.

2°
45°
Profile
Raster N × N
253
Rays per eye
50,269
Uniform at s₀ needs
2.4 M
Samples within 5°
16%

What the sensor stores: the square raster

What it covers: directions around the gaze, true angles

Purple lines are every 16th raster row and column; orange circles are eccentricity 2°, 5°, 10°, 20° and the rim. Hover or tap either picture.

Spacing between neighbouring samples against eccentricity: radial (purple) grows linearly, as the spacing law asks; tangential (teal) grows more slowly, so peripheral pixels are long and thin.