WebGL2RenderingContext.isTransformFeedback()

The WebGL2RenderingContext.isTransformFeedback() method of the WebGL 2 API returns true if the passed object is a valid WebGLTransformFeedback object.

Syntax

GLboolean gl.isTransformFeedback(transformFeedback);

Parameters

transformFeedback: A WebGLTransformFeedback object to test.

Return value

A GLboolean indicating whether the given object is a valid WebGLTransformFeedback object (true) or not (false).

Examples

gl must be a WebGL2RenderingContext. WebGLTransformFeedback objects are not available in WebGL 1.

var transformFeedback = gl.createTransformFeedback();

// ...

gl.isTransformFeedback(transformFeedback);

Specifications

Specification
WebGL 2.0 Specification (WebGL 2.0) # 3.7.15

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`isTransformFeedback`	56	79	51	No	43	15	58	58	51	43	15	7.0