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

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
vertexAttribI4iChrome Full support 56Edge No support NoFirefox Full support 51IE No support NoOpera Full support 43Safari No support NoWebView Android Full support 58Chrome Android Full support 58Firefox Android Full support 51Opera Android Full support 43Safari iOS No support NoSamsung Internet Android Full support 7.0


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