WebGLRenderingContext: uniformMatrix[234]fv() method

{{APIRef("WebGL")}}{{AvailableInWorkers}}

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 {{domxref("WebGLUniformLocation")}} object containing the location of the uniform attribute to modify. The location is obtained using {{domxref("WebGLRenderingContext.getUniformLocation", "getUniformLocation()")}}.
• transpose
  • : A {{domxref("WebGL_API/Types", "GLboolean")}} specifying whether to transpose the matrix. Must be false.
• value
  • : A {{jsxref("Float32Array")}} or sequence of GLfloat values. The values are assumed to be supplied in column major order.

Return value

None ({{jsxref("undefined")}}).

Examples

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

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("WebGLRenderingContext.uniform()")}}
• {{domxref("WebGL2RenderingContext.uniformMatrix()")}} – WebGL 2 versions of these methods.