Fast z buffer initialize and update method

Details Fast z buffer initialize and update method Fast z buffer initialize and update method

G - Physics

06

F

G06F 3/14 (2006.01) G06T 15/40 (2006.01)

Patent

CA 2055057

AT9-90-029 FAST Z BUFFER INITIALIZE AND UPDATE METHOD ABSTRACT A method is provided for initializing and updating a group of pixels contained on a display in blocks. A group of pixels is considered as a block and has a status word associated therewith. This status word maintains a running total of the maximum z value of any pixel contained within a group, or block of pixels. In this manner, once a block of pixels is rendered on to the display screen a comparison can be made between the current pixels being displayed and a group of pixels which are to be displayed. The minimum z value of the group of pixels to be displayed is compared with the maximum z value for the group of pixels currently being displayed. If the current maximum z value, as stored in the status word, is less than the minimum z value for the pixels to be displayed, then the group of pixels currently being displayed will all "win" when compared to the pixels in the group to be displayed. Thus, a full block bypass of the group of pixels to be displayed is implemented, thereby saving considerable time and overhead when compared to conventional z buffer systems that compare z values for each individual pixel.

Affiliated with

Also associated with

Rating

Fast z buffer initialize and update method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fast z buffer initialize and update method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast z buffer initialize and update method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1355663