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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.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

FeatureChromeFirefoxEdgeInternet ExplorerOperaSafari
Basic Support5651.0(No)(No)43(No)
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support(No)(No)(No)(No)(No)(No)(No)

See also

Document Tags and Contributors

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