🪟 Lattice Screen: Porosity, Sun Shading, Daylight and Airflow (2D)

Section and front view of a carved wooden lattice screen over a window, with sun rays passing or stopped by the bars and a strip showing the air flowing through two screens. Set the bar width, the gap, the depth, the height and direction of the sun, the wind and the height between openings, and see the open area, the share of direct sun and sky light that gets through, the sun power entering and the air velocity. The direct sun and sky light by random rays, the open area and the airflow balance are checked numerically, with four in-page numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install