公开(公告)号：US07697006B2

公开(公告)日：2010-04-13

申请号：US10427618

申请日：2003-04-30

Applicant: Kevin T. Lefebvre ,  Don B Hoffman ,  Michael T Hamilton

Inventor： Kevin T. Lefebvre ,  Don B Hoffman ,  Michael T Hamilton

IPC: G06T1/00 ,  G06T15/40

CPC classification number: G06T15/005

Abstract: A modified display list contains a series of n nested bounding volumes. The first bounding volume in the series contains the remaining n-1 bounding volumes the series. The second bounding volume contains the remaining n-2 bounding volumes in the series, and so on. Upon invocation, the graphics display system processes the modified list sequentially and tests the bounding volumes as they are encountered. As soon as a bounding volume is encountered whose coordinates define a region that should not be rendered, further sequential processing of rendering commands in the list may be halted. If any state commands remain in the list, those commands or an equivalent set of state commands may be executed, and then processing of the list is complete. Alternatively, if push/pop state commands exist on either side of the list, then processing of the list may be halted without more.

Abstract translation: 修改的显示列表包含一系列嵌套的嵌套卷。 系列中的第一个包围卷包含剩余的n-1个界限卷。 第二个界限卷包含系列中剩余的n-2个界限卷，依此类推。 在调用时，图形显示系统按顺序处理修改的列表，并在遇到遇到的范围内测试边界卷。 一旦遇到其坐标定义不应该呈现的区域的边界体积，则可能停止列表中渲染命令的进一步顺序处理。 如果列表中有任何状态命令，则可以执行这些命令或等效的状态命令集，然后完成列表的处理。 或者，如果在列表的任一侧上存在push / pop状态命令，则可以停止列表的处理。