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 Status Comment
WebGL 2.0
The definition of 'isTransformFeedback' in that specification.
Editor's Draft Initial definition for WebGL.
OpenGL ES 3.0
The definition of 'glIsTransformFeedback' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

BCD tables only load in the browser

See also