WebGL2RenderingContext: getUniformBlockIndex() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
The WebGL2RenderingContext.getUniformBlockIndex() method
of the WebGL 2 API retrieves the index of
a uniform block within a WebGLProgram.
Syntax
js
getUniformBlockIndex(program, uniformBlockName)
Parameters
program-
A
WebGLProgramcontaining the uniform block. uniformName-
A string specifying the name of the uniform block to whose index to retrieve.
Return value
A GLuint indicating the uniform block index.
Examples
js
// Assuming a shader with the following declaration:
// uniform UBOData {
// mat4 foo;
// } instanceName;
// use the block name, not the instance name:
const blockIndex = gl.getUniformBlockIndex(program, "UBOData");
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.16 |
Browser compatibility
BCD tables only load in the browser