Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The read-only preferredReflectionFormat property of the XRSession interface returns this session's preferred reflection format used for lighting estimation texture data.
A string representing the reflection format. Possible values:XRReflectionFormat WebGL Format WebGL Internal Format WebGPU Format HDR "srgba8" RGBA SRGB8_ALPHA8 "rgba8unorm-srgb" "rgba16f" RGBA RGBA16F "rgba16float" ✓
You can request a light probe with XRSession.requestLightProbe() and specify the system's preferred format by setting the reflectionFormat option equal to XRSession.preferredReflectionFormat.
const lightProbe = await xrSession.requestLightProbe({
reflectionFormat: xrSession.preferredReflectionFormat,
});