This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The WebGL2RenderingContext.getUniformIndices() method of the WebGL 2 API retrieves the indices of a number of uniforms within a WebGLProgram.


sequence<GLuint> gl.getUniformIndices(program, uniformNames);


A WebGLProgram containing uniforms whose indices to query.
An Array of DOMString specifying the names of the uniforms to query.

Return value

An Array of GLuint containing the uniform indices.


var uniformIndices = gl.getUniformIndices(program, ['UBORed', 'UBOGreen', 'UBOBlue']);


Specification Status Comment
WebGL 2.0
The definition of 'getUniformIndices' in that specification.
Editor's Draft Initial definition for WebGL.
OpenGL ES 3.0
The definition of 'glGetUniformIndices' 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
getUniformIndicesChrome 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


Full support  
Full support
No support  
No support

See also