Volumetric effects pixel processing

Details Volumetric effects pixel processing Volumetric effects pixel processing

G - Physics

06

T

G06T 15/50 (2006.01) G06F 15/72 (1990.01)

Patent

CA 2075448

-22- Abstract of the Disclosure In the real time image generation system disclosed herein, opaque or planal 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.

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