The WebGLRenderingContext.getActiveAttrib()
method of the WebGL API returns a WebGLActiveInfo
object containing size, type, and name of a vertex attribute. It is generally used when querying unknown attributes either for debugging or generic library creation.
Syntax
WebGLActiveInfo gl.getActiveAttrib(program,index);
Parameters
- program
- A
WebGLProgram
containing the vertex attribute. - index
- A
GLuint
specifying the index of the vertex attribute to get. This value is an index 0 to N - 1 as returned bygl.getProgramParameter(program, gl.ACTIVE_ATTRIBUTES)
.
Return value
A WebGLActiveInfo
object.
Examples
const numAttribs = gl.getProgramParameter(program, gl.ACTIVE_ATTRIBUTES);
for (let i = 0; i < numAttribs; ++i) {
const info = gl.getActiveAttrib(program, i);
console.log('name:', info.name, 'type:', info.type, 'size:', info.size);
}
Specifications
Specification | Status | Comment |
WebGL 1.0The definition of 'getActiveAttrib' in that specification. | Recommendation | Initial definition. |
OpenGL ES 2.0The definition of 'glGetActiveAttrib' in that specification. | Standard | Man page of the 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.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getActiveAttrib
|
Chrome
Full support 9 |
Edge
Full support 12 |
Firefox
Full support 4 |
IE
Full support 11 |
Opera
Full support 12 |
Safari
Full support 5.1 |
WebView Android
Full support Yes |
Chrome Android
Full support 25 |
Firefox Android
Full support Yes |
Opera Android
Full support 12 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
Legend
- Full support
- Full support
See also
WebGLRenderingContext.getActiveAttrib() by Mozilla Contributors is licensed under CC-BY-SA 2.5.