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QuickTime VR (also known as QuickTime Virtual Reality or QTVR) is an image file format developed by Apple Inc. for QuickTime. It allows the creation and viewing of photographically-captured panoramas and the exploration of objects through images taken at multiple viewing angles. It functions as a plugin for the standalone QuickTime Player, as well as working as a plugin for the QuickTime Web browser plugin. ==Panoramas== VR Panoramas are panoramic images which ''surround'' the viewer with an environment (inside, looking out), yielding a sense of place. They can be "stitched" together from several normal photographs or 2 images taken with a circular fisheye lens, or captured with specialized panoramic cameras, or rendered from 3D-modeled scenes. There are two type of VR Panorama: * ''Single row panoramas'', with a single horizontal row of photographs. * ''multi-row panoramas'', with several rows of photographs taken at different tilt angles. VR Panoramas are further divided into those that include the top and bottom, called ''cubic'' or ''spherical'' panoramas, and those that do not, usually called ''cylindrical''. A single panorama, or ''node'' is captured from a single point in space. Several nodes and object movies can be linked together to allow a viewer to move from one location to another. Such ''multinode'' QuickTime VR movies are called ''scenes''. Apple's QuickTime VR file format has two representations for panoramic nodes: * ''cylindrical'' (consisting of one 360° image wrapped around the viewer) * ''cubic'' (consisting of a cube of six 90°x 90° images surrounding the viewer). Each of these are typically subdivided or ''tiled'' into several smaller images, and stored in a special kind of QuickTime movie file, which requires the QuickTime plugin. ''Hot spots'' can be embedded into the panorama, which when selected can invoke some action, for example moving to another panorama node. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「QuickTime VR」の詳細全文を読む スポンサード リンク
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