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
WebGLTransformFeedbackobject 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
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