This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
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 | Servo |
|---|---|---|---|---|---|---|---|
| Basic Support | 56 | No support | 51.0 | No support | 43 | No support | No support |
| Feature | Android | Chrome for Android | Edge Mobile | Firefox for Android | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic Support | No support | No support | No support | No support | No support | No support | No support |
WebGLRenderingContext.createProgram()WebGLRenderingContext.deleteProgram()WebGLRenderingContext.isProgram()WebGLRenderingContext.linkProgram()WebGLRenderingContext.useProgram()WebGLRenderingContext.validateProgram()WebGLRenderingContext.getProgramParameter()WebGLRenderingContext.getProgramInfoLog()
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https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/getFragDataLocation