Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1998-06-12
2000-07-18
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
G06F 1500
Patent
active
06091422&
ABSTRACT:
An authoring system provides a realistic rendering that may be updated and displayed continuously while simultaneously allowing full access to all authoring tools. The system is an enhancement to an authoring environment for 3D modeling. The rendering is incorporated in the authoring environment in a way that avoids conflicting with the abstract images and tools useful for working with 3D models such as would obtain in a WYSIWYG implementation. The computational burden of rendering is handled by rendering in an asynchronous parallel thread with respect to that supporting the authoring UI. The number of pixels that must be ray-traced is reduced by several mechanisms including: limiting the number of objects, limiting the resolution of the display, tailoring the size of the field-of-view window (while providing orientation context by placing the rendering on top of a wire-frame view). Also, only portions of the scene that are affected in a visible way by updates are re-rendered. The rendering fits into the authoring context by forming it in a selectable-size region in a wire-frame or other type of view. Also, the authoring UI thread is executed at a higher priority than the rendering thread (or some other control means) to insure the UI is not slowed down. The rendering is placed on top of a wire frame so that it fits into and takes advantage of the wire-frame view without interfering with it substantially. The rendering window can be tailored to show precisely the part of the scene the author is working on.
REFERENCES:
patent: 5307449 (1994-04-01), Kelley et al.
patent: 5557711 (1996-09-01), Malzbender
patent: 5761401 (1998-06-01), Kobayashi et al.
Krattli Jean-Marc
Ouaknine Alain
Smirnov Alexis
Avid Technology Inc.
Milik Kenneth L.
Monks Lawrence E.
Nguyen Phu K.
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