XRWebGLLayerInit.alpha

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句法
范例
规范
浏览器兼容性
另请参阅
相关话题

安全上下文
此特征只可用于安全上下文 (HTTPS)，在某些或所有支持浏览器 .

alpha property is a Boolean value which, if present and set to true 在 XRWebGLLayerInit dictionary passed into the XRWebGLLayer() constructor, specifies that the new layer's color buffer is to include an alpha channel . Otherwise, the color buffer won't have an alpha channel. The default is true .

句法

let layerInit = {
  alpha: boolValue
};
let glLayer = new XRWebGLLayer(xrSession, gl, layerInit);
let glLayer = new XRWebGLLayer(xrSession, gl, { alpha: boolValue });

值

A Boolean which can be set to true to request that the new WebGL layer for rendering the WebXR scene is to have an alpha channel.

范例

In this example, a new XRWebGLLayer is created for a WebXR session, xrSession , without an alpha channel.

xrSession.updateRenderState({
  baseLayer: new XRWebGLLayer(xrSession, gl, {
     alpha: false
  });
});

规范

规范	状态	注释
WebXR 设备 API The definition of 'XRWebGLLayerInit.alpha' in that specification.	工作草案	初始定义。

浏览器兼容性

The compatibility table in 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
`alpha`	Chrome 79	Edge 79	Firefox No	IE No	Opera No	Safari No	WebView Android 79	Chrome Android 79	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 11.2

图例

完整支持
不支持

另请参阅

元数据

最后修改： Dec 17, 2019

WebXR 设备 API
XRWebGLLayerInit
特性
1. alpha
2. antialias
3. depth
4. framebufferScaleFactor
5. ignoreDepthValues
6. stencil
Related pages for WebXR Device API

在此页

句法

值

范例

规范

浏览器兼容性

图例

另请参阅

相关话题