US 5,315,692 AGranted

Multiple object pipeline display system

AssigneeHughes Training, Inc.

InventorsDennis D. Hansen, Michael D. Sedlar, James N. Clay, Jr.

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Abstract

A computer-controlled imaging system for providing a realistic representation of a three-dimensional scene on a two-dimensional medium in which multiple objects, viewed from several aspects and which may be combined informing a scene, are stored in digital form on mass storage device is allocated amongst plural channels. A field-of-view computer controls the read out of the stored objects into a buffer memory where they become available for processing by a pipeline processor which is capable of warping the image in accordance with instructions from the field-of-view computer. These images in each channel are then arranged in an order of range from a viewer whereby more remote images are occluded by closer images. The images from all channels are then fed in raster scan format to a scene construction module where CGSI and special effects can be added to the composite scene prior to being fed to video display equipment.

A computer-controlled imaging system for providing a realistic three-dimensional scene on a two-dimensional medium comprising:

(a) a gaming area data base storage means (15) for storing coordinate locations and identifications of a plurality of objects comprising a scene;
(b) an object data base comprising a multiplicity of digital mass storage means (34, 36, 38, 40) for storing data representative of said objects as viewed for a multiplicity of aspect angles;
(c) master visual computer means (12) for determining position and orientation of an imaginary observer relative to said gaming area;
(d) field-of-view computing means (10) operatively coupled to said master visual computer means (12) and said gaming area data base storage means (15) for developing digital control words specifying identity, size, rotation and aspect of each object present in said observer's field-of-view;
(e) a plurality of channels (64), at least one channel for sequentially processing a plurality of objects one at a time within one video frame and providing predetermined translation and occlusion between said objects, said at least one channel including:
(i) predetermined ones of said digital mass storage means (34, 36, 38, 40) of said object data base;
(ii) multiple object memory means (52) for temporarily storing data representative of all selected objects required for said channel to compose an assigned portion of the resultant scene, and read from said object data base mass storage means;
(iii) means (42, 44, 48) for coupling said object data base mass storage means (34, 36, 38, 40) to said multiple object memory means (52), said coupling means (42, 44, 48) operating under control of said field-of-view computing means (10) to select and buffer data representative of objects identified by the FOV computer from the mass storage means for presentation to the multiple object memory;
(iv) pipeline processing means (54) operable at a video rate under control of said field-of-view computing means (10) for transforming said data representative of selected objects read from said multiple object memory means (52) so as to represent the same object but having a size and orientation as required for a constructed scene;
(v) scene memory means (16) and range memory means (18) for storing a raster representation of a current scene being constructed;
and
(vi) memory mapper means (58) coupled to said field-of-view computing means and coupling said scene memory means (16) for entering objects into said range memory means and scene memory means in a region corresponding to the coordinate location of said objects with predetermined translation and occlusion as determined by input data received from said field-of-view computing means.

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Abstract

Claims8