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.uniform[1234][uif][v]() methods of the WebGL API specify values of uniform variables.
ui stands for unsigned integer, i for integer, f for float, and v for vector.
Not all combination are valid: ui can be combined with v, but not i or f. See the syntax table below.
Syntax
void gl.uniform1ui(location, v0); void gl.uniform2ui(location, v0, v1); void gl.uniform3ui(location, v0, v1, v2); void gl.uniform4ui(location, v0, v1, v2, v3); void gl.uniform1fv(location, data, optional srcOffset, optional srcLength); void gl.uniform2fv(location, data, optional srcOffset, optional srcLength); void gl.uniform3fv(location, data, optional srcOffset, optional srcLength); void gl.uniform4fv(location, data, optional srcOffset, optional srcLength); void gl.uniform1iv(location, data, optional srcOffset, optional srcLength); void gl.uniform2iv(location, data, optional srcOffset, optional srcLength); void gl.uniform3iv(location, data, optional srcOffset, optional srcLength); void gl.uniform4iv(location, data, optional srcOffset, optional srcLength); void gl.uniform1uiv(location, data, optional srcOffset, optional srcLength); void gl.uniform2uiv(location, data, optional srcOffset, optional srcLength); void gl.uniform3uiv(location, data, optional srcOffset, optional srcLength); void gl.uniform4uiv(location, data, optional srcOffset, optional srcLength);
Parameters
- location
- A
WebGLUniformLocationobject containing the location of the uniform attribute to modify. value, v0, v1, v2, v3- A new value to be used for the uniform variable. Possible types:
- A
Numberfor unsigned integer values (methods withui), for integer values (methods withi), or for floats (methods withf). - A
Uint32Arrayfor unsigned integer vector methods (methods withuiv).
- A
Return value
None.
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebGL 2.0 The definition of 'uniform' in that specification. |
Editor's Draft | Initial definition for WebGL. |
| OpenGL ES 3.0 The definition of 'glUniform' 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.
| Feature | Chrome | Firefox | Edge | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic Support | 56 | 51.0 | (No) | (No) | 43 | (No) |
| Feature | Android | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
|---|---|---|---|---|---|---|---|
| Basic Support | (No) | (No) | (No) | (No) | (No) | (No) | (No) |