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Previsualization (also known as previsualisation, previs, previz, pre-rendering, preview or wireframe windows) is the visualizing of scenes or sequences in a movie, prior to filming. It is also a concept in various creative practices, including animation, performing arts, video game design, and still photography. Previsualization is typically used to describe techniques such as storyboarding, either in the form of sketches (using traditional and/or digital drawing tools) or in digital technology, in the planning and conceptualization of movie scenes.