This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The WebGL2RenderingContext.getUniformBlockIndex()
method of the WebGL 2 API retrieves the index of a uniform block within a WebGLProgram
.
Syntax
GLuint gl.getUniformBlockIndex(program, uniformBlockName);
Parameters
program
- A
WebGLProgram
containing the uniform block. uniformName
- A
DOMString
specifying the name of the uniform block to whose index to retrieve.
Return value
A GLuint
indicating the uniform block index.
Examples
// Assuming a shader with the following declaration: // uniform UBOData { // mat4 foo; // } instanceName; // use the block name, not the instance name: var blockIndex = gl.getUniformBlockIndex(program, 'UBOData');
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 2.0 The definition of 'getUniformBlockIndex' in that specification. |
Editor's Draft | Initial definition for WebGL. |
OpenGL ES 3.0 The definition of 'glGetUniformBlockIndex' in that specification. |
Standard | Man page of the (similar) OpenGL API. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getUniformBlockIndex | Chrome Full support 56 | Edge Full support 79 | Firefox Full support 51 | IE No support No | Opera Full support 43 | Safari No support No | WebView Android Full support 58 | Chrome Android Full support 58 | Firefox Android Full support 51 | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support