This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The WebGL2RenderingContext.vertexAttribI4[u]i[v]() methods of the WebGL 2 API specify integer values for generic vertex attributes.


void gl.vertexAttribI4i(index, v0, v1, v2, v3);
void gl.vertexAttribI4ui(index, v0, v1, v2, v3);

void gl.vertexAttribI4iv(index, value);
void gl.vertexAttribI4uiv(index, value);


A GLuint specifying the position of the vertex attribute to be modified.
v0, v1, v2, v3
An integer Number for the vertex attribute value.

Uint32Array/Int32Array or sequences of GLuint/ GLint for integer vector vertex attribute values.

Return value



gl.vertexAttribI4i(a_foobar, 10);


Specification Status Comment
WebGL 2.0
The definition of 'vertexAttribI' in that specification.
Editor's Draft Initial definition for WebGL.
OpenGL ES 3.0
The definition of 'glVertexAttribI' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support56 No51 No43 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic support5858 No51 No43 No

See also

Document Tags and Contributors

 Contributors to this page: fscholz, teoli
 Last updated by: fscholz,