Volumetric effects pixel processing

Details Volumetric effects pixel processing Volumetric effects pixel processing

1991-08-08

1994-08-16

Bayerl, Raymond J.

395121, 395135, 395120, G06F 1572, G06F 1562

Patent

active

053393864

ABSTRACT:
In a real time image generation system opaque or planar object pixels are defined by at least a color attribute and a depth value and volumetric pixels are defined by at least a color attribute, a depth value and an opacity gradient value. A volumetric data buffer is provided for storing attributes and values associated with volumetric pixels and the volumetric items are processed first to load that buffer. Successive object pixel definitions are then read and the depth value of each current object pixel definition is compared with the depth value in the buffer and a relative weight for the volumetric effect is calculated as a function of the relative depth values and the corresponding volume gradient value. The color attributes of the object pixel and the volumetric data are then mixed as a function of the relative weighting to obtain a result color attribute which is output as the color for the respective pixel.

REFERENCES:
patent: 4679040 (1987-07-01), Yan
patent: 4684990 (1987-08-01), Oxley
patent: 4821210 (1989-04-01), Rumbaugh
patent: 4835712 (1989-05-01), Drebin et al.
patent: 4918625 (1990-04-01), Yan
patent: 4992780 (1991-02-01), Penna et al.
patent: 5123085 (1992-06-01), Wells et al.
Turner Whitted-"Processing Requirements For Hidden Surface Elimination And Realistic Shading"-Digest of Papers Spring Compcon '82 22-Feb., 1982, New York, U.S.-pp. 245-250.
A. Mammen-"Transparency and Antialiasing Algorithms Implemented With the Virtual Pixel Maps Technique"-IEEE Computer Graphics And Applications, vol. 9, No. 4, Jul. 1989, New York, US-pp. 43-55.

Affiliated with

Also associated with

Rating

Volumetric effects pixel processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Volumetric effects pixel processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Volumetric effects pixel processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-959400