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QuickTime VR
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==Overview== ===Panoramas=== 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 types of panoramas: * Single row panoramas, with a single horizontal row of photographs. * Multi-row panoramas, with several rows of photographs taken at different tilt angles. 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. [[File:Panorama-RainyCourtyard.jpg|thumb|600px|center|This cylindrical panorama was shot with a [[Nikon Coolpix 5000]] and stitched with [[Apple Inc.]]'s [[QuickTime]] Authoring Studio.]] 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 360Β° image wrapped around the viewer * cubic, consisting of a [[Skybox (video games)|cube of six 90Β° Γ 90Β° 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. [[File:Pyramid Peak Desolation02.jpg|thumb|600px|center|This cylindrical panorama was shot with a [[Canon Digital Rebel XT]].]] ===Objects=== In contrast to panoramas, which are captured from one location looking out at various angles, objects are captured from many locations pointing in toward the same central object. The simplest type of objects to capture are single row, typically captured around the equator of an object. This is normally facilitated by a rotating turntable. The object is placed on the turntable, and photographed at equal angular increments (usually 10Β°) from a camera mounted on a [[Tripod (photography)|tripod]]. Capturing a multi-row object movie requires a more elaborate setup for capturing images, because the camera must be tilted above and below the equator of the object at several tilt angles.
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