Light matters, a monthly column on light and space, is written by Thomas Schielke. Based in Germany, he is fascinated by architectural lighting, has published numerous articles and co-authored the book „Light Perspectives“. Does shadow have the power to give form to architecture? The increasing number of transparent buildings and LED installations would enforce the impression that light has eliminated the relevance of shadow. But to answer that question, let’s look back to a master of light whose architecture was shaped by shadow: Louis Kahn. More Light Matters, after the break… As identified by Leonardo da Vinci, we often encounter three types of shadows: Attached shadow, shading and cast shadow. The attached shadow falls on the body itself – like a cantilever roof causing a shadow on the façade. The second type belongs to bright and dark contrasts, which are inherent to the form and depend only on the source of light, e.g. a ball shaped pavilion, which even under a cast sky shows a darker zone in the lower part. The third, cast shadow, could be the result of a high house generating shadow on the street due to the projection of the building outline.
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