This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WebGL2RenderingContext.getFragDataLocation()
method of the WebGL 2 API returns the binding of color numbers to user-defined varying out variables.
Syntax
GLint gl.getFragDataLocation(program, name);
Parameters
- program
- A
WebGLProgram
to query. - name
- A
DOMString
specifying the name of the user-defined varying out variable.
Return value
A GLint
indicating the assigned color number binding, or -1
otherwise.
Examples
// program is a linked WebGLProgram gl.getFragDataLocation(program, 'fragColor');
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 2.0 The definition of 'getFragDataLocation' in that specification. |
Editor's Draft | Initial definition. |
OpenGL ES 3.0 The definition of 'glGetFragDataLocation' 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.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 56 | No | 51 | No | 43 | No |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | 58 | 58 | No | 51 | No | 43 | No |
See also
WebGLRenderingContext.createProgram()
WebGLRenderingContext.deleteProgram()
WebGLRenderingContext.isProgram()
WebGLRenderingContext.linkProgram()
WebGLRenderingContext.useProgram()
WebGLRenderingContext.validateProgram()
WebGLRenderingContext.getProgramParameter()
WebGLRenderingContext.getProgramInfoLog()