Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The leftViewMatrix read-only property of the VRFrameData interface returns a Float32Array representing a 4x4 matrix that describes the view transform to be used for the left eye's rendering.
Note: This property was part of the old WebVR API. It has been superseded by the WebXR Device API.
This value may be passed directly to WebGL's uniformMatrix4fv function.
Warning: It is highly recommended that applications use this matrix when rendering.