Wall grazing light on fair-faced concrete: Skimming across the surface

Close-up of a nighttime fair-faced concrete wall, with luminaires placed in a groove at the base of the wall, and light grazing almost perfectly parallel to the wall surface upwards. Every tiny irregularity on the concrete surface is magnified: formwork joint lines cast long, thin shadows, bolt holes become small circles with shadows, and subtle color variations and air bubbles from casting are all revealed. Brightness rapidly diminishes upwards from the base of the wall, becoming almost completely dark above two meters. The brightest part at the lower edge of the wall is warm white, with a texture like silk sanded with sandpaper. There are no other light sources in the surroundings; the ground in front of the wall has only a narrow light strip close to the wall. Avoid: using uniform wall-washing light, brightening the upper half of the wall, adding other light sources, making the concrete surface appear smooth and flawless.

Translated from Chinese by AI.

夜間的清水混凝土牆面近景,燈具設在牆腳的溝槽內,光幾乎完全平行牆面往上掠射。混凝土表面每一處微小的凹凸都被放大:模板的接縫線投出細長的陰影、螺栓孔成為一顆顆帶陰影的小圓、澆置時的細微色差與氣泡孔全部顯現。亮度從牆腳往上快速衰減,兩公尺以上已經接近全暗。牆面下緣最亮處呈暖白,質地像被砂紙磨過的絲。周邊完全沒有其他光源,牆前的地面只有一道貼牆的窄光帶。避免:使用洗牆式的均勻光、補亮牆面上半部、加入其他光源、讓混凝土表面看起來光滑無瑕。