Hemicube is a method for rendering geometry in computer graphics, particularly used in the context of global illumination and rendering techniques. The hemicube method is primarily associated with the computation of soft shadows and is a form of radiosity rendering. In essence, a hemicube is a half-cube that is used to project light from the surfaces in a scene onto the hemisphere above it. This technique can be employed to gather information about how light interacts with surfaces and produce more realistic lighting effects.
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