这是
实验性技术
检查
浏览器兼容性表格
要小心谨慎在生产中使用这之前。
linearVelocity
只读特性在
VRPose
interface returns an array representing the linear velocity vector of the
VRDisplay
在当前
VRPose.timestamp
, in meters per second.
In other words, the current velocity at which the sensor is moving along the
x
,
y
，和
z
axes.
var myLinearVelocity = VRPose.linearVelocity;
A
Float32Array
，或
null
if the VR sensor is not able to provide linear velocity data.
// rendering loop for a VR scene
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);
// Retrieve the linear velocity values for use in rendering
// curFramePose is a VRPose object
var curFramePose = frameData.pose;
var linVel = curFramePose.linearVelocity;
var lvx = linVel[0];
var lvy = linVel[1];
var lvz = linVel[2];
// render the scene
...
// WebVR: submit the rendered frame to the VR display
vrDisplay.submitFrame();
}
| 规范 | 状态 | 注释 |
|---|---|---|
|
WebVR 1.1
The definition of 'linearVelocity' in that specification. |
草案 | 初始定义 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
linearVelocity
弃用
|
Chrome No | Edge 15 — 79 |
Firefox
55
|
IE No | Opera ? | Safari No | WebView Android No |
Chrome Android
56 — 80
Disabled
|
Firefox Android 55 | Opera Android ? | Safari iOS ? |
Samsung Internet Android
6.0
|
完整支持
不支持
兼容性未知
实验。期望将来行为有所改变。
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。