W3C

The Web Real-Time Communications Working Group has published a First Public Working Draft of WebRTC Encoded Transform. The goal of this work is to define an API for processing encoded media in WebRTC, for example for voice processing, background removal, dynamic control of codec parameters, etc. This document specifies an API surface for manipulating the bits on MediaStreamTracks being sent via an RTCPeerConnection.

The Immersive Web Working Group has published a First Public Working Draft of WebXR Lighting Estimation API Level 1. This specification describes support for exposing estimates of environmental lighting conditions to WebXR sessions.

The Web Fonts Working Group has published a First Public Working Draft of Incremental Font Transfer. This specification defines two methods to incrementally transfer fonts from server to client. Incremental transfer allows clients to load only the portions of the font they actually need which speeds up font loads and reduces data transfer needed to load the fonts. A font can be loaded over multiple requests where each request incrementally adds additional data.

The Accessible Platform Architectures (APA) Working Group has published XR Accessibility User Requirements (XAUR) as a Working Group Note. XR refers to hardware, applications, and techniques used for virtual reality or immersive environments (VR), augmented or mixed reality (AR), and other related technologies. XAUR introduces technical accessibility challenges, such as the need for multi-modal support, synchronization of input and output devices, and customization. It describes accessibility user needs and suggests requirements. XAUR is for designers and developers involved in creating immersive and augmented experiences. It’s also useful for anyone who wants to better understand accessibility in a range of immersive or augmented environments.

The Web Payments Working Group has published a First Public Working Draft of Secure Payment Confirmation (SPC). SPC helps to streamline authentication during a payment transaction. Leveraging Web Authentication, it is designed to scale authentication across merchants, to be used within a wide range of authentication protocols, and to produce cryptographic evidence that the user has confirmed transaction details.

The Immersive Web Working Group has published the following three First Public Working Drafts:

• WebXR Depth Sensing Module is a module extending the capabilities of WebXR Device API. It enables apps to obtain depth information computed by supported XR devices in order to provide more immersive experiences. The example use cases of depth sensing API include (but are not limited to) simulating physical interactions of virtual objects with the real world, occlusion, and non-visual applications that can make use of increased awareness of users’ environment.
• WebXR Hit Test Module describes a method for performing hit tests against real world geometry to be used with the WebXR Device API.
• WebXR DOM Overlays Module expands the WebXR Device API with a mechanism for showing interactive 2D web content during an immersive WebXR session. When the feature is enabled, the user agent will display the content of a single DOM element as a transparent-background 2D rectangle.

The CSS Working Group has published a First Public Working Draft of CSS Nesting Module. This module introduces the ability to nest one style rule inside another, with the selector of the child rule relative to the selector of the parent rule. This increases the modularity and maintainability of CSS stylesheets.