在此页

• 句法
• 范例
• 浏览器兼容性
• 另请参阅
• 相关话题

过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

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。

setFieldOfView() 方法在 HMDVRDevice interface can be used to set the field of view for one eye, or both eyes simultaneously.

句法

HMDVRDevice.setFieldOfView(leftFOV,rightFOV,zNear,zFar);
					

参数

leftFOV 可选

A VRFieldOfView object that defines the new field of view for the left eye. If not specified, the left eye field of view does not change.

rightFOV 可选

A VRFieldOfView object that defines the new field of view for the right eye. If not specified, the right eye field of view does not change.

zNear 可选

The distance from the eyes of the nearest point of the view. The closest things can be and still be in the view. If not specified, the default is used — 0.01 .

zFar 可选

The distance from the eyes of the farthest point of the view. The furthest away things can be and still be in the view. If not specified, the default is used — 10000.0 .

返回

Void.

范例

The following simple example shows a function that can be used to set a custom field of view with four specified degree values for up, right, down and left. The VRFieldOfView() constructor is used to create a VRFieldOfView object from the supplied values, which is then fed into the setFieldOfView() method (the default zNear and zFar values are always used, in this case.)

function setCustomFOV(up,right,down,left) {
  var testFOV = new VRFieldOfView(up,right,down,left);
  gHMD.setFieldOfView(testFOV,testFOV,0.01,10000.0);
  var lEye = gHMD.getEyeParameters('left');
  var rEye = gHMD.getEyeParameters('right');
  console.log(lEye.currentFieldOfView);
  console.log(rEye.currentFieldOfView);
}
					

注意 : When testing, setting a weird/tiny field of view can really mess up your view. It is a good idea to grab the current field of view first (using VREyeParameters.currentFieldOfView ) before making any drastic changes, so you can reset it afterwards if needed.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
setFieldOfView 弃用 非标	Chrome No	Edge No	Firefox 39 Disabled 39 Disabled The support for this feature is currently disabled by default in Firefox. To enable WebVR support in Firefox Nightly/Developer Edition, you can go to about:config and enable the dom.vr* prefs. A better option however is to install the WebVR Enabler Add-on , which does this for you and sets up other necessary parts of the environment Disabled From version 39: this feature is behind the dom.vr* preference. To change preferences in Firefox, visit about:config.	IE No	Opera No	Safari No	WebView Android No	Chrome Android 62 62 The support in Chrome is currently experimental. To find information on Chrome's WebVR implementation status including supporting builds, check out Bringing VR to Chrome by Brandon Jones.	Firefox Android 44 44 dom.vr* prefs are enabled by default at this point, in Nightly/Aurora editions. 不支持 39 — 44 Disabled The support for this feature is currently disabled by default in Firefox. To enable WebVR support in Firefox Nightly/Developer Edition, you can go to about:config and enable the dom.vr* prefs. A better option however is to install the WebVR Enabler Add-on , which does this for you and sets up other necessary parts of the environment . Disabled From version 39 until version 44 (exclusive): this feature is behind the dom.vr* preference. To change preferences in Firefox, visit about:config.	Opera Android No	Safari iOS No	Samsung Internet Android 8.0

图例

完整支持

完整支持

不支持

不支持

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

• WebVR API homepage .
• MozVr.com — demos, downloads, and other resources from the Mozilla VR team.

元数据

• 最后修改： Dec 23, 2019

相关话题

1. WebVR API
2. HMDVRDevice
3. 方法

   1. getEyeParameters()
   2. setFieldOfView()
4. 继承：

   1. VRDevice
5. Related pages for WebVR API

   1. Gamepad.displayId
   2. Navigator.activeVRDisplays
   3. Navigator.getVRDisplays()
   4. VRDisplay
   5. VRDisplayCapabilities
   6. VRDisplayEvent
   7. VREyeParameters
   8. VRFieldOfView
   9. VRFrameData
   10. VRLayerInit
   11. VRPose
   12. VRStageParameters