Qt Quick 3D Xr概述

Qt Quick 3D Xr Overview

Qt Quick 3D Xr概述

Qt Quick 3D Xr allows you to leverage the many features of the Qt framework while still being able to deploy a native application to a compatible VR or XR headset. Or run an application on a host that streams to a headset.

Qt Quick 3D Xr允许利用Qt框架的许多功能，同时仍然能够将本地应用程序部署到兼容的VR或Xr头显。或者在主机上运行流式传输到头显的应用程序。

Concepts and Technologies

概念和技术

There are many concepts and technologies in the fragmented XR technology landscape. This section will define and distinguish between key concepts essential to understanding Qt Quick 3D Xr.

在碎片化的XR技术格局中有许多概念和技术。本节将定义和区分对理解Qt Quick 3D Xr至关重要的关键概念。

Types of immersion

浸入式

Here, we talk about the different immersion levels that exist.

在这里，我们来谈谈存在的不同的沉浸水平。

Virtual Reality (VR)

虚拟现实（VR）

Perhaps the first and most ambitious level of immersion, replacing a person's visual and auditory input with a computer-generated environment that matches the motion of their head, eyes, or both.

也许这是第一个也是最雄心勃勃的沉浸水平，用计算机生成的环境来取代一个人的视觉和听觉输入，该环境与他们的头部、眼睛或两者的运动相匹配。

Extended Reality (XR)

扩展现实（XR）

Note: Sometimes referred to as Spatial Reality

注：有时被称为空间现实

Coined initially as augmented reality (AR), then mixed reality (MR), this type of immersion combines virtual information (either 2D or 3D content) with live visual information of the user's real-world environment. It can provide the information as an overlay on a translucent screen or onto a display that masks the real world entirely.

这种类型的沉浸感最初被称为增强现实（AR），然后是混合现实（MR），它将虚拟信息（2D或3D内容）与用户真实世界环境的实时视觉信息相结合。它可以在半透明屏幕上或在完全掩盖真实世界的显示器上提供叠加信息。

Head-mounted displays and degrees of freedom

头戴式显示器和自由度

Interaction Types

交互类型

Controllers

控制器

Hand tracking

手跟踪

Body tracking

身体跟踪

Marketing jargon

营销术语

Under the hood

It is essential that developers understand the API platform landscape in the XR world.

开发人员必须了解XR世界中的API平台环境。

Support

支持

The support case for devices in this area is evolving rapidly as the market expands, support is added when parity exists between two types of headsets.

随着市场的扩大，该领域设备的支持情况正在迅速发展，当两种类型的头显之间存在对等时，就会增加支持。

Currently, this is split between OpenXR, Apple, and Google/Samsung devices.

目前，这分为OpenXR、苹果和谷歌/三星设备。

Feature Matrix

特征矩阵

Feature 特殊	Apple	Meta	Samsung
Pass-through 移动	No	Yes	NA
Controller input 控制输入	No	No	NA
	No	No	NA
Haptic Feedback 触觉反馈	No	No	NA
Hand Interaction 手交互	No	No	NA
Body Tracking 身体跟踪	No	No	NA

The OpenXR SDK for your target headset and if developing a native application for an Android-based headset, you will need Qt for Android.

​用于目标头显的OpenXR SDK，如果为基于Android的头显开发本机应用程序，将需要用于Android的Qt。

Where to go from here?

从这里去哪里？

Head to the Qt Quick 3D Xr Quick Starter Guide, examples, or head back to the home page where you will find what's new and other important information in this version.

​前往Qt Quick 3D Xr Quick Starter Guide、示例，或返回主页，在那里可以找到此版本中的新增内容和其他重要信息。

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