W3cubDocs

/Web APIs

WebGLRenderingContext: uniformMatrix[234]fv() 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.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.

Syntax

uniformMatrix2fv(location, transpose, value)
uniformMatrix3fv(location, transpose, value)
uniformMatrix4fv(location, transpose, value)

Parameters

location: A WebGLUniformLocation object containing the location of the uniform attribute to modify. The location is obtained using getUniformLocation().
transpose: A GLboolean specifying whether to transpose the matrix. Must be false.
value: A Float32Array or sequence of GLfloat values. The values are assumed to be supplied in column major order.

Return value

None (undefined).

Examples

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

Specifications

Specification
WebGL Specification> # 5.14.10>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`uniformMatrix`	9	12	4	12	5.1	25	4	12	8	1.5	4.4.3	8