H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 13/00 (2006.01) G06T 15/70 (2006.01) H04N 13/02 (2006.01)
Patent
CA 2300529
A system and method for generating and playing back three-dimensional (3D) movies are disclosed. The system is capable of partially rendering frames without relying upon exact viewpoint information. The partially rendered frames may be rendered to the extent possible without performing viewpoint-dependent processes, and then compressed and stored to a carrier medium. To reduce the amount of data to be stored, the viewer's possible viewpoints may be restricted (e.g., by defining a viewpoint-limiting volume or region). The resulting partially-rendered geometry data may be compressed using geometry compression. During playback, the compressed frames are read as a stream, and decompressed. Any final viewpoint-dependent rendering operations may then be performed (e.g., some lighting calculations and atmospheric effects, some fogging, specular highlighting, and reflections). A sensor such as a head-tracker may provide real-time viewpoint information that may be used by the playback system. After rendering, the frames are rasterized and then displayed in stereo.
Goudreau Gage Dubuc
Sun Microsystems Inc.
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