| 词条 | Antiportal |
| 释义 |
In computer-generated imagery and real-time 3D computer graphics, antiportal rendering is a way to reduce overdraw (the rendering of detail which will not be in the final image), and in this way to optimize draw speed. Antiportals are related to portals, and are the inverse. An antiportal (or occluder) works by defining a plane or volume which can never be seen through, normally by placing it within an opaque object. The renderer uses this to quickly calculate which objects/faces/vertices lie behind the antiportal, and so are out of line of sight, so do not need to be rendered.[1] Many video games and 3D graphics programs use this technique for speed rendering. Unreal Tournament 2004, among many other games, uses this technique.[1] See also
References1. ^1 {{cite book |title=Game Level Design |last=Byrne |first=Edward |authorlink= |coauthors= |year=2005 |publisher=Cengage Learning |location= |isbn= 1-58450-369-6 |page=231 |pages= |url= |accessdate=}} {{Compu-graphics-stub}} 2 : Computer graphics|Unreal (video game series) |
| 随便看 |
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。