在计算机图形学中，有三种方式表示三维物体：线框图、消隐图和真实感图。其中真实感图形的生成也要在消隐基础上进行光照处理。所谓消隐就是给定一组三维对象及投影方式(视见约束)，判定线、面或体的可见性的过程。-In computer graphics, the suppression of the display of one or more display elements or display groups.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001963s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.089436s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002352s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001940s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002377s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004508s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002078s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004074s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016951s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002614s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 298288 [ RunTime:0.001257s ]
