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.
GLint gl.getFragDataLocation(program, name);
WebGLProgram to query.DOMString specifying the name of the user-defined varying out variable.A GLint indicating the assigned color number binding, or -1 otherwise.
// program is a linked WebGLProgram gl.getFragDataLocation(program, 'fragColor');
| 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. |
| 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 |
WebGLRenderingContext.createProgram()WebGLRenderingContext.deleteProgram()WebGLRenderingContext.isProgram()WebGLRenderingContext.linkProgram()WebGLRenderingContext.useProgram()WebGLRenderingContext.validateProgram()WebGLRenderingContext.getProgramParameter()WebGLRenderingContext.getProgramInfoLog()
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/getFragDataLocation