苹果发布 visionOS 26.4 Beta 1：携手英伟达解锁“云端外挂”

IT之家02-18

IT之家 2 月 18 日消息，苹果公司昨日发布 visionOS 26.4 Beta 1 更新，引入支持英伟达 CloudXR 及“注视点流传输”（Foveated Streaming）技术。支持英伟达 CloudXRIT之家注：英伟达 CloudXR 是基于 NVIDIA RTX 技术的流媒体解决方案，支持将高保真的虚拟现实（VR）和增强现实（AR）内容从远程服务器流式传输到便携式设备上。更...

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visionOS 26.4 Beta 1 更新，引入支持英伟达 CloudXR 及“注视点流传输”（Foveated Streaming）技术。支持英伟达 CloudXRIT之家注：英伟达 CloudXR 是基于 NVIDIA RTX 技术的流媒体解决方案，支持将高保真的虚拟现实（VR）和增强现实（AR）内容从远程服务器流式传输到便携式设备上。更通俗解释就是一种让头显“借用”远程电脑显卡的技术，就像是用手机玩云游戏，复杂的画面由远处的超级电脑算好，直接发视频给你的头显看。visionOS 26.4 进一步打破生态壁垒，由于 NVIDIA CloudXR 是目前 VR 领域广泛采用的第三方流媒体技术，原生支持该协议意味着现有的海量 PC VR 游戏和高算力工业软件，将能以更低的成本、更优的体验移植到 Apple Vision Pro 平台。引入支持“注视点流传输”技术“注视点流传输”核心逻辑在于智能分配算力与带宽。系统会实时调用 Apple Vision Pro 的眼球追踪数据，精准判定用户的视线焦点。在用户注视的区域，系统会传输最高质量的画面；而在视线周边的余光区域，则适当降低画质。这种策略在用户几乎无法察觉差异的前提下，极大减轻了数据传输压力，确保了云端串流体验的流畅性。此次更新最令人兴奋的特性在于支持“混合图层渲染”。根据苹果开发者文档，开发者可以叠加本地生成的空间内容与远程流式传输的内容。苹果为了展示这一技术的潜力，官方举了两个具体案例：赛车游戏与飞行模拟器：在开发一款赛车游戏时，车内的仪表盘、方向盘等近景细节可由设备本地的 RealityKit 实时渲染，以保证交互的瞬时响应；而窗外极度消耗显卡性能的动态风景、光影效果，则由远程高性能电脑或云服务器运算后流式传输至头显。在飞行模拟应用中，复杂的驾驶舱仪表盘由 Apple Vision Pro 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