WEBGL_debug_renderer_info

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WEBGL_debug_renderer_info 扩展属于 WebGL API and exposes two constants with information about the graphics driver for debugging purposes.

Depending on the privacy settings of the browser, this extension might only be available to privileged contexts. Generally, the graphics driver information should only be used in edge cases to optimize your WebGL content or to debug GPU problems. The WebGLRenderingContext.getParameter() method can help you to detect which features are supported and the failIfMajorPerformanceCaveat context attribute lets you control if a context should be returned at all, if the performance would be dramatically slow.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also 使用扩展在 WebGL 教程 .

可用性： Depending on the privacy settings of the browser, this extension might only be available to privileged contexts or not work at all. In Firefox, if privacy.resistFingerprinting 被设为 true , this extensions is disabled.

This extension is available to both, WebGL1 and WebGL2 上下文。

常量

ext.UNMASKED_VENDOR_WEBGL
ext.UNMASKED_RENDERER_WEBGL

范例

With the help of this extension, privileged contexts are able to retrieve debugging information about about the user's graphic driver:

var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
var debugInfo = gl.getExtension('WEBGL_debug_renderer_info');
var vendor = gl.getParameter(debugInfo.UNMASKED_VENDOR_WEBGL);
var renderer = gl.getParameter(debugInfo.UNMASKED_RENDERER_WEBGL);
console.log(vendor);
console.log(renderer);

规范

规范	状态	注释
WEBGL_debug_renderer_info The definition of 'WEBGL_debug_renderer_info' in that specification.	推荐	初始定义。

浏览器兼容性

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
`WEBGL_debug_renderer_info`	Chrome 33	Edge ≤18	Firefox 53 53 不支持 ? — 53 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari Yes	WebView Android 37	Chrome Android 33	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 2.0

图例

完整支持
不支持
兼容性未知 ?
用户必须明确启用此特征。

另请参阅

WebGLRenderingContext.getExtension()

元数据

最后修改： 2019 年 3 月 23 日

在此页

常量

范例

规范

浏览器兼容性

图例

另请参阅

相关话题