摘要:
http://www.devdiv.com/home.php?mod=space&uid=23234&do=blog&id=3310用openGL中的glClipPlanef方法达到效果一个相关的链接http://paulbourke.net/geometry/planeeq/写visit方法-(void)visit{[selfbeforeDraw];[supervisit];[selfafterDraw];}-(void)beforeDraw{float top =210.0f;;float bottom= -130.0f;float left = -180.0f;f 阅读全文