阅读说明：本技术 基于元素的光线投射规则的切换 (Element-based ray casting rule switching ) 是由 欧文·佩德罗蒂 加扬·埃德里维拉 布兰登·富特旺勒 于 2021-05-28 设计创作，主要内容包括：本申请涉及基于元素的光线投射规则的切换。可以为人工现实环境中的元素(例如,对象或体积)分配不同的光线投射规则。响应于检测到相应的触发,例如用户进入体积或与对象交互,可以实现与该元素相关联的光线投射规则。实现光线投射规则可以控制光线的各个方面,例如光线的形状、大小、光线的效果、光线的来源、光线是否沿着特定平面定向或者光线如何被控制。在某些情况下,人工现实系统可以同时投射多条光线,这些光线由用户的同一特征控制。使用优先级规则(例如,加权因子、层级、过滤器等),人工现实系统可以确定哪一条光线是主要光线,这允许用户使用主要光线与元素进行交互。(The application relates to switching of element-based ray casting rules. Elements (e.g., objects or volumes) in an artificial reality environment may be assigned different ray casting rules. In response to detecting a corresponding trigger, such as a user entering a volume or interacting with an object, a ray casting rule associated with the element may be implemented. Implementing ray casting rules may control various aspects of the light, such as the shape, size, effect, source, whether or not the light is directed along a particular plane, or how the light is controlled. In some cases, the artificial reality system may project multiple rays simultaneously, which are controlled by the same feature of the user. Using priority rules (e.g., weighting factors, hierarchies, filters, etc.), the artificial reality system can determine which rays are chief rays, which allows the user to interact with the element using the chief rays.)