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== Dimension == {{Unsourced-section|date=March 2025}}[[File: Fog shadow of GGB.jpg|thumb|Fog shadow of the south tower of the [[Golden Gate Bridge]]]] A shadow occupies a three-dimensional volume of space, but this is usually not visible until it projects onto a reflective surface. A light [[fog]], mist, or dust cloud can reveal the 3D presence of volumetric patterns in light and shadow. Fog shadows may look odd to viewers who are not used to seeing shadows in three dimensions. A thin fog is just dense enough to be illuminated by the light that passes through the gaps in a structure or in a tree. As a result, the path of an object's shadow through the fog becomes visible as a darkened volume. In a sense, these shadow lanes are the inverse of [[crepuscular rays]] caused by beams of light, they're caused by the shadows of solid objects. [[Theatrical fog]] and strong beams of light are sometimes used by lighting designers and visual artists who seek to highlight three-dimensional aspects of their work.
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