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
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