METHOD AND DEVICE FOR RENDING THREE-DIMENSIONAL GRAPHICS

摘要

A method for updating values of a depth buffer (16) comprising values for display blocks (102) of a display (2), and a device for implementing the method. The display is partitioned into a plurality of display regions (101), including a plurality of display blocks and having a minimum region depth value and a maximum region depth value. Each display region includes a plurality of display subregions. A minimum subregion depth value and a maximum subregion depth value are determined relative to at least one of the minimum region depth value and the maximum region depth value.