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Retopology (or retopo) is a step in the 3D modeling process where an object's polygonal mesh is modified or recreated to obtain a cleaner layout while maintaining nearly the same physical shape of the model. Owing to its complexity, retopology is currently a mostly manual process but tools exist to assist 3D artists with the workflow. Automated and semi-automated retopology algorithms are an active field of research; state-of-the-art

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