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Lighting In Art Week Ambient occlusion is a rendering technique mostly known in 3D art, but which has been also successfully implemented by 2D artists for quite some time. In computer graphics, ambient occlusion is sophisticated ray-tracing calculation, which allows you to simulate the soft shadows that happen in cracks, crevices and intersections of surfaces, where the ambient light is darker or even blocked. It's all about distance ... The farther the object surface from the light, the more occluded (and darker) the lighting becomes, and it is these soft shadows that help define the separation between objects in the composition, resulti