Limited availability
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 depthUsage property of an immersive-ar XRSession describes which depth-sensing usage is used.
This property can return the following values:
cpu-optimized
The depth data is intended to be used on the CPU; see the XRCPUDepthInformation interface.
gpu-optimized
The depth data is intended to be used on the GPU; see the XRWebGLDepthInformation interface.
To request the desired usage method, you need to specify a usagePreference when requesting a session using XRSystem.requestSession(). Here, the caller is able to handle both CPU- and GPU-optimized usage. The order indicates preference for CPU:
navigator.xr.requestSession("immersive-ar", {
requiredFeatures: ["depth-sensing"],
depthSensing: {
usagePreference: ["cpu-optimized", "gpu-optimized"],
formatPreference: ["luminance-alpha", "float32"],
},
});
To check which usage was selected by the user agent, you can call the depthUsage property:
console.log(session.depthUsage); // either "cpu-optimized" or "gpu-optimized"
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