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

The WebGL2RenderingContext.getInternalformatParameter() method of the WebGL 2 API returns information about implementation-dependent support for internal formats.


any gl.getInternalformatParameter(target, internalformat, pname);


A Glenum specifying the target renderbuffer object. Possible values:
  • gl.RENDERBUFFER: Buffer data storage for single images in a renderable internal format.
A GLenum specifying the internal format about which to retrieve information (must be a color-renderable, depth-renderable or stencil-renderable format).
A GLenum specifying the type of information to query. Possible values:
  • gl.SAMPLES: Returns a Int32Array containing sample counts supported for internalformat in descending order.

Return value

Depends on the requested information (as specified with pname). It is an Int32Array if pname is gl.SAMPLES.


var samples = gl.getInternalformatParameter(gl.RENDERBUFFER, 
                                            gl.RGBA8, gl.SAMPLES);


Specification Status Comment
WebGL 2.0
The definition of 'getInternalFormatParameter' in that specification.
Editor's Draft Initial definition for WebGL.
OpenGL ES 3.0
The definition of 'glGetInternalformativ' 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
getInternalformatParameterChrome 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