[Unity 组件参考手册]组件：渲染组件之遮挡入口

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This group contains all Components that have to do with rendering in-game and user interface elements. Lighting and special effects are also included in this group.这个组包括在游戏中渲染和界面元素的所有组件。光照和特定效果也包含在这个组。
下面介绍遮挡入口。 In order to create occlusion primitive which are openable and closable at&nbsp***ntime, Unity uses Occlusion Portals.为了创建实时可开启关闭的遮挡，Unity使用遮挡入口（Occlusion Portals）。 Occlusion Portals----------------------------------------------------------------------------------    Open打开
    Indicates if the portal is open (scriptable)
    表示入口是否打开（可编写脚本）
    Center中心
    Sets the center of the Occlusion Area. By default this is 0,0,0 and is located in the center of the box.
    设定遮挡区域的中心. 默认0,0,0 并位于盒子的中心。
    Size大小
    Defines the size of the Occlusion Area.
    定义遮挡区域大小 ----------------------------------------------------------------------------------【来源：互联网】
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