WebGLRenderingContext.getExtension() - Web APIs 编辑

The WebGLRenderingContext.getExtension() method enables a WebGL extension.

Syntax

gl.getExtension(name);

A WebGL extension object, or null if name does not match (case-insensitive) to one of the strings in WebGLRenderingContext.getSupportedExtensions.

Once a WebGL extension is enabled, you are able to use the methods, properties or constants that this extension object provides.

var canvas = document.getElementById('canvas');
gl = canvas.getContext('webgl');

gl.getExtension('WEBGL_lose_context').loseContext();

Extensions for the WebGL API are registered in the WebGL Extension Registry. The current extensions are:

Specification	Status	Comment
WebGL 1.0 The definition of 'WebGLRenderingContext.getExtension' in that specification.	Recommendation	Initial definition.

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