Abstract
Recently, the development of 3D graphics technology has led to various technologies being combined with reality, where a new reality is defined or studied; they are typically named by combining the name of the technology with “reality”. Representative “reality” includes Augmented Reality, Virtual Reality, Mixed Reality, and eXtended Reality (XR). In particular, research on XR in the web environment is actively being conducted. The Web eXtended Reality Device Application Programming Interface (WebXR Device API), released in 2018, allows instant deployment of XR services to any XR platform requiring only an active web browser. However, the currently released tentative version has poor stability. Therefore, in this study, the performance evaluation of WebXR Device API is performed using three experiments. A camera trajectory experiment is analyzed using ground truth, we checked the standard deviation between the ground truth and WebXR for the X, Y, and Z axes. The difference image experiment is conducted for the front, left, and right directions, which resulted in a visible difference image for each image of ground truth and WebXR, small mean absolute error, and high match rate. In the experiment for measuring the 3D rendering speed, a frame rate similar to that of real-time is obtained.
Highlights
Web eXtended Reality (WebXR) is a standard used to support the rendering of a 3D scene with appropriate hardware to present a virtual environment in a web environment or to add graphic images to the real environment
We aimed to evaluate the performance of the WebXR Device application programming interface (API) and conducted a performance evaluation study
In order to experiment with the camera trajectory along each axis, a comparative experiment between ground truth and WebXR was performed for each of the X, Y, and Z axes
Summary
Web eXtended Reality (WebXR) is a standard used to support the rendering of a 3D scene with appropriate hardware to present a virtual environment in a web environment or to add graphic images to the real environment. It is used to provide extended reality in a web environment. Extensive studies for supporting virtual environments in a web environment have been performed, such as WebVR application programming interface (API) and WebAR API [1,2]. Because these APIs were developed to service a particular virtual environment, supporting other virtual environments became difficult and modifications were time-consuming. At this time, the difference between Virtual Reality, Mixed Reality, and Augmented Reality will be explained.
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