The WebGLRenderingContext.uniformMatrix[234]fv() methods of the WebGL API specify matrix values for uniform variables.

The three versions of this method (uniformMatrix2fv(), uniformMatrix3fv(), and uniformMatrix4fv()) take as the input value 2-component, 3-component, and 4-component square matrices, respectively.  They are expected to have 4, 9 or 16 floats.


WebGLRenderingContext.uniformMatrix2fv(location, transpose, value);
WebGLRenderingContext.uniformMatrix3fv(location, transpose, value);
WebGLRenderingContext.uniformMatrix4fv(location, transpose, value); 


A WebGLUniformLocation object containing the location of the uniform attribute to modify. The location is obtained using getUniformLocation().
A GLboolean specifying whether to transpose the matrix. Must be false.

A Float32Array or sequence of GLfloat values. The values are assumed to be supplied in column major order.

Return value



gl.uniformMatrix2fv(loc, false, [2,1, 2,2]);


Specification Status Comment
WebGL 1.0
The definition of 'uniformMatrix' in that specification.
Recommendation Initial definition.
OpenGL ES 2.0
The definition of 'glUniform' in that specification.
Standard Man page of the OpenGL API.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
uniformMatrix2fvChrome Full support 9Edge Full support 12Firefox Full support 4IE Full support 11Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support 25Firefox Android Full support YesOpera Android Full support 12Safari iOS Full support 8Samsung Internet Android Full support 1.5
WebGL2Chrome Full support 56Edge Full support 79Firefox 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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See also