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

Browser compatibility

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See also

• WebGLTransformFeedback