The layer component renders images, videos or cubemaps into a WebXR compositor layer on supported browsers.
The benefits of layers are:
- Performance and judder: Once the layer is submitted, the compositor is in charge of render it at a fixed refresh rate (72Hz, 90Hz… depending on device). Even if the application cannot keep up with the compositor refresh rate the layer won’t drop any frames resulting in a smoother experience.
- Visual fidelity: The images in a layer will be sampled only once by the compositor. Regular WebGL content is sampled twice: Once one rendering to the eye buffer and a second time when copied to the compositor. This results in a loss of details.
- Battery life: No double sampling results in less memory copies reducing operations and battery consumption.
- Latency: Headset pose sampling for layers takes place at the end of the frame using the most recent HMD pose. This paired with reprojection techniques reduce the effective latency.
|src||Image or video loaded in the layer.|
|rotateCubemap||Rotates the cubemap 180 degrees in the y-axis.|