VRPose

这是 实验性技术
检查 浏览器兼容性表格 在生产中使用这之前。

VRPose interface of the WebVR API represents the state of a VR sensor at a given timestamp (which includes orientation, position, velocity, and acceleration information.)

This interface is accessible through the VRDisplay.getPose() and VRDisplay.getFrameData() 方法。 VRDisplay.getPose() is deprecated.

特性

VRPose.position 只读
Returns the position of the VRDisplay 在当前 VRPose.timestamp as a 3D vector
VRPose.linearVelocity 只读
Returns the linear velocity of the VRDisplay 在当前 VRPose.timestamp , in meters per second.
VRPose.linearAcceleration 只读
Returns the linear acceleration of the VRDisplay 在当前 VRPose.timestamp , in meters per second per second.
VRPose.orientation 只读
Returns the orientation of the sensor at the current VRPose.timestamp , as a quarternion value.
VRPose.angularVelocity 只读
Returns the angular velocity of the VRDisplay 在当前 VRPose.timestamp , in radians per second.
VRPose.angularAcceleration 只读
Returns the angular acceleration of the VRDisplay 在当前 VRPose.timestamp , in meters per second per second.

过时特性

VRPose.timeStamp 只读
Returns the current time stamp of the system — a monotonically increasing value useful for determining if position data has been updated, and what order updates have occured in. This version of timestamp has been removed from the spec — instead, timestamps are now returned when VRDisplay.getFrameData() is called — see VRFrameData.timestamp .

范例

var frameData = new VRFrameData();
var vrDisplay;
navigator.getVRDisplays().then(function(displays) {
  vrDisplay = displays[0];
  console.log('Display found');
  // Starting the presentation when the button is clicked: It can only be called in response to a user gesture
  btn.addEventListener('click', function() {
    vrDisplay.requestPresent([{ source: canvas }]).then(function() {
      drawVRScene();
    });
  });
});
// WebVR: Draw the scene for the WebVR display.
function drawVRScene() {
  // WebVR: Request the next frame of the animation
  vrSceneFrame = vrDisplay.requestAnimationFrame(drawVRScene);
  // Populate frameData with the data of the next frame to display
  vrDisplay.getFrameData(frameData);
  // You can get the position, orientation, etc. of the display from the current frame's pose
  // curFramePose is a VRPose object
  var curFramePose = frameData.pose;
  var curPos = curFramePose.position;
  var curOrient = curFramePose.orientation;
  // Clear the canvas before we start drawing on it.
  gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
  // WebVR: Create the required projection and view matrix locations needed
  // for passing into the uniformMatrix4fv methods below
  var projectionMatrixLocation = gl.getUniformLocation(shaderProgram, "projMatrix");
  var viewMatrixLocation = gl.getUniformLocation(shaderProgram, "viewMatrix");
  // WebVR: Render the left eye’s view to the left half of the canvas
  gl.viewport(0, 0, canvas.width * 0.5, canvas.height);
  gl.uniformMatrix4fv(projectionMatrixLocation, false, frameData.leftProjectionMatrix);
  gl.uniformMatrix4fv(viewMatrixLocation, false, frameData.leftViewMatrix);
  drawGeometry();
  // WebVR: Render the right eye’s view to the right half of the canvas
  gl.viewport(canvas.width * 0.5, 0, canvas.width * 0.5, canvas.height);
  gl.uniformMatrix4fv(projectionMatrixLocation, false, frameData.rightProjectionMatrix);
  gl.uniformMatrix4fv(viewMatrixLocation, false, frameData.rightViewMatrix);
  drawGeometry();
  function drawGeometry() {
    // draw the view for each eye
  }
    ...
  // WebVR: Indicate that we are ready to present the rendered frame to the VR display
  vrDisplay.submitFrame();
}
					

注意 : You can see this complete code at raw-webgl-example .

规范

规范 状态 Comment
WebVR 1.1
The definition of 'VRPose' in that specification.
草案 初始定义

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
VRPose
弃用
Chrome No Edge ≤18 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
angularAcceleration
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
angularVelocity
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
hasOrientation
弃用 非标
Chrome No Edge No Firefox No IE No Opera ? Safari No WebView Android No Chrome Android No Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android No
hasPosition
弃用 非标
Chrome No Edge No Firefox No IE No Opera ? Safari No WebView Android No Chrome Android No Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android No
linearAcceleration
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
linearVelocity
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
orientation
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
position
弃用
Chrome No Edge 15 — 79 Firefox 55
55
Windows support was enabled in Firefox 55.
64
macOS support was enabled in Firefox 64.
IE No Opera ? Safari No WebView Android No Chrome Android 56 — 80
Disabled
不支持 56 — 80
Disabled
Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)
Daydream View supported in Chrome 56.
Google Cardboard supported in Chrome 57.
Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.
Firefox Android 55 Opera Android ? Safari iOS ? Samsung Internet Android 6.0
6.0
Google Cardboard supported in Samsung Internet 7.0.
timestamp
弃用 非标
Chrome No Edge 15 — 79 Firefox No IE No Opera ? Safari No WebView Android No Chrome Android No Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android No

图例

完整支持
完整支持
不支持
不支持
兼容性未知
兼容性未知
实验。期望将来行为有所改变。
实验。期望将来行为有所改变。
非标。预期跨浏览器支持较差。
非标。预期跨浏览器支持较差。
弃用。不要用于新网站。
弃用。不要用于新网站。
见实现注意事项。
用户必须明确启用此特征。
用户必须明确启用此特征。

另请参阅