WebGLRenderingContext: getActiveAttrib() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is available in Web Workers.
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
getActiveAttrib(program, index)
Parameters
program-
A
WebGLProgramcontaining the vertex attribute. index-
A
GLuintspecifying 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 |
|---|
| WebGL Specification # 5.14.10 |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
getActiveAttrib
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support