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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 uniforms 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 1.0 The definition of 'getActiveAttrib' in that specification. |
Recommendation | Initial definition. |
OpenGL ES 2.0 The 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.
Desktop | Mobile | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic support | 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 | Edge Mobile Full support Yes | Firefox Android Full support Yes | Opera Android Full support 12 | Safari iOS Full support 8.1 | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support