Backlighting for louvered facades: Light seeping through the gaps

The outer layer of a nighttime building is a continuous vertical metal grille, with all luminaires hidden in the cavity between the grille and the main structure, illuminating the inner wall. From the outside, light seeps out from every gap in the grille, forming dense vertical fine lines of light. The grille itself appears as a dark silhouette, with only its edges subtly highlighted. The entire building resembles a lightbox that glows from within, enveloped externally. As one approaches, the illuminated inner wall and the depth of the cavity can be seen through the gaps. Variations in the density of the gaps create a gradient of brightness on the facade. Color temperature is warm white. Avoid: directly illuminating the grille surface, exposing the luminaires, adding colored light, depicting the light from the gaps as a continuous surface.

Translated from Chinese by AI.

夜間建築的外層是一整片垂直金屬格柵,燈具全部藏在格柵與主結構之間的空腔內,朝內牆打光。從外面看,光線從格柵的每一道縫隙中滲出,形成密集的垂直細光線,格柵本身呈現為深色的剪影,只有邊緣被輕微勾亮。整棟建築像一個內部發光、外部包覆的燈箱。人走近時,可以透過縫隙看見內部被照亮的牆面與空腔的深度。縫隙的疏密變化讓立面出現亮度的漸層。色溫暖白。避免:直接照亮格柵表面、讓燈具外露、加入彩色光、把縫隙的光畫成連續面。