This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WebGL2RenderingContext.beginTransformFeedback()
method of the WebGL 2 API starts a transform feedback operation.
Syntax
void gl.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.
Examples
var transformFeedback = gl.createTransformFeedback(); gl.bindTransformFeedback(gl.TRANSFORM_FEEDBACK, transformFeedback); gl.beginTransformFeedback(gl.TRIANGLES); gl.drawArrays(gl.TRIANGLES, 0, 3);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 2.0 The definition of 'beginTransformFeedback' in that specification. |
Editor's Draft | Initial definition for WebGL. |
OpenGL ES 3.0 The definition of 'glBeginTransformFeedback' in that specification. |
Standard | Man page of the (similar) OpenGL API. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
beginTransformFeedback | Chrome Full support 56 | Edge Full support 79 | Firefox Full support 51 | IE No support No | Opera Full support 43 | Safari No support No | WebView Android Full support 58 | Chrome Android Full support 58 | Firefox Android Full support 51 | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support