Composition Layers

Composition Layers allow application developers to define areas in a scene or view that are composited separately from the normal 3D rendering. Rendering to a composition layer can provide sharper rendering compared to normal scene rendering. Device makers can also provide their own composition layers to support features like pass-through video or hardware-accelerated video.

The Composition Layers package defines a few common layer types and provides extension mechanisms that allow plug-in authors to add new layer types or add custom extensions to support their specific needs or features.

Refer to the following topics to get started with the Composition Layers package:

Topic	Description
What's new	Learn about the latest features, improvements, and fixes.
Get started	Get started with the Composition Layers package.
Overview	Understand the core concepts behind composition layers.
Use composition layers	Add, configure, and manage composition layers in a Scene.
Composition layer components	Understand the components and extensions used to define composition layers.
Mirror View Renderer	Render composition layers to the Main Display when running in XR mode.
Provider implementation guidelines	Implement Composition Layers support for a specific hardware API.
Known Issues	Review known limitations and issues in this package.