WebGLTransformFeedback
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.
Note: This feature is available inWeb Workers.
TheWebGLTransformFeedback interface is part of theWebGL 2 API and enables transform feedback, which is the process of capturing primitives generated by vertex processing. It allows to preserve the post-transform rendering state of an object and resubmit this data multiple times.
When working withWebGLTransformFeedback objects, the following methods of theWebGL2RenderingContext are useful:
WebGL2RenderingContext.createTransformFeedback()WebGL2RenderingContext.deleteTransformFeedback()WebGL2RenderingContext.isTransformFeedback()WebGL2RenderingContext.bindTransformFeedback()WebGL2RenderingContext.beginTransformFeedback()WebGL2RenderingContext.endTransformFeedback()WebGL2RenderingContext.pauseTransformFeedback()WebGL2RenderingContext.resumeTransformFeedback()WebGL2RenderingContext.transformFeedbackVaryings()WebGL2RenderingContext.getTransformFeedbackVarying()
Examples
Creating aWebGLTransformFeedback object
in this example,gl must be aWebGL2RenderingContext.WebGLTransformFeedback objects are not available in WebGL 1.
js
const transformFeedback = gl.createTransformFeedback();Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.5 |