This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The WebGL2RenderingContext.getInternalformatParameter()
method of the WebGL 2 API returns information about implementation-dependent support for internal formats.
Syntax
any gl.getInternalformatParameter(target, internalformat, pname);
Parameters
target
- A
Glenum
specifying the target renderbuffer object. Possible values:gl.RENDERBUFFER
: Buffer data storage for single images in a renderable internal format.
internalformat
- A
GLenum
specifying the internal format about which to retrieve information (must be a color-renderable, depth-renderable or stencil-renderable format). pname
- A
GLenum
specifying the type of information to query. Possible values:gl.SAMPLES
: Returns aInt32Array
containing sample counts supported forinternalformat
in descending order.
Return value
Depends on the requested information (as specified with pname
). It is an Int32Array
if pname
is gl.SAMPLES
.
Examples
var samples = gl.getInternalformatParameter(gl.RENDERBUFFER, gl.RGBA8, gl.SAMPLES);
Specifications
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
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | No support [2] | Nightly build [1] | No support | No support | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | No support | No support | No support | No support | No support | No support |
[1] WebGL 2 is enabled by default in Firefox Nightly. To enable it in a release version of Firefox, set the preference webgl.enable-prototype-webgl2
to true
in about:config.
[2] To use an experimental implementation of WebGL 2 in Chrome, you have to start Chrome with the runtime flag --enable-unsafe-es3-apis
.