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
WebGLProgramto query. - name
- A
DOMStringspecifying 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.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
getFragDataLocation | 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
See also
WebGLRenderingContext.createProgram()WebGLRenderingContext.deleteProgram()WebGLRenderingContext.isProgram()WebGLRenderingContext.linkProgram()WebGLRenderingContext.useProgram()WebGLRenderingContext.validateProgram()WebGLRenderingContext.getProgramParameter()WebGLRenderingContext.getProgramInfoLog()