WebGLTransformFeedback

The WebGLTransformFeedback interface is part of the WebGL 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 with WebGLTransformFeedback objects, the following methods of the WebGL2RenderingContext are useful:

• WebGL2RenderingContext.createTransformFeedback()
• WebGL2RenderingContext.deleteTransformFeedback()
• WebGL2RenderingContext.isTransformFeedback()
• WebGL2RenderingContext.bindTransformFeedback()
• WebGL2RenderingContext.beginTransformFeedback()
• WebGL2RenderingContext.endTransformFeedback()
• WebGL2RenderingContext.pauseTransformFeedback()
• WebGL2RenderingContext.resumeTransformFeedback()
• WebGL2RenderingContext.transformFeedbackVaryings()
• WebGL2RenderingContext.getTransformFeedbackVarying()

Examples

Creating a WebGLTransformFeedback object

in this example, gl must be a WebGL2RenderingContext. WebGLTransformFeedback objects are not available in WebGL 1.

var transformFeedback = gl.createTransformFeedback();

Specifications

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.