WebGL2RenderingContext: beginTransformFeedback() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
The WebGL2RenderingContext.beginTransformFeedback()
method of the WebGL 2 API starts a transform
feedback operation.
Syntax
js
beginTransformFeedback(primitiveMode)
Parameters
primitiveMode
-
A
GLenum
specifying the output type of the primitives that will be recorded into the buffer objects that are bound for transform feedback. Possible values:gl.POINTS
gl.LINES
gl.TRIANGLES
Return value
None (undefined
).
Examples
js
const transformFeedback = gl.createTransformFeedback();
gl.bindTransformFeedback(gl.TRANSFORM_FEEDBACK, transformFeedback);
gl.beginTransformFeedback(gl.TRIANGLES);
gl.drawArrays(gl.TRIANGLES, 0, 3);
Specifications
Specification |
---|
WebGL 2.0 Specification # 3.7.15 |
Browser compatibility
BCD tables only load in the browser