WebGLRenderingContext: uniform[1234][fi][v]() method
The WebGLRenderingContext.uniform[1234][fi][v]() methods of the WebGL API specify values of uniform variables. All active uniform variables defined in a program object are initialized to 0 when the program object is linked successfully. They retain the values assigned to them by a call to this method until the next successful link operation occurs on the program object, when they are once again initialized to 0.
Syntax
uniform1f(location, v0)
uniform1fv(location, value)
uniform1i(location, v0)
uniform1iv(location, value)
uniform2f(location, v0, v1)
uniform2fv(location, value)
uniform2i(location, v0, v1)
uniform2iv(location, value)
uniform3f(location, v0, v1, v2)
uniform3fv(location, value)
uniform3i(location, v0, v1, v2)
uniform3iv(location, value)
uniform4f(location, v0, v1, v2, v3)
uniform4fv(location, value)
uniform4i(location, v0, v1, v2, v3)
uniform4iv(location, value)
Parameters
-
location
-
A WebGLUniformLocation object 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 floating point
Number for floating point values (methods with "f").
- A sequence of floating point numbers (for example a
Float32Array or an Array of numbers) for floating point vector methods (methods with "fv").
- An integer
Number for integer values (methods with "i").
- An
Int32Array for integer vector methods (methods with "iv").
Return value
Examples
gl.uniform1f(u_alpha, 0.8);
Specifications
Browser compatibility
|
Desktop |
Mobile |
|
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
WebView Android |
Chrome Android |
Firefox for Android |
Opera Android |
Safari on IOS |
Samsung Internet |
uniform |
9 |
12 |
4 |
11 |
12 |
5.1 |
4.4.3 |
25 |
4 |
12 |
8 |
1.5 |
See also