WebGLRenderingContext.uniform

The WebGLRenderingContext.uniform[1234][fi][v]() methods of the WebGL API specify values of uniform variables.

Syntax

void gl.uniform1f(location, v0);
void gl.uniform1fv(location, value);
void gl.uniform1i(location, v0);
void gl.uniform1iv(location, value);

void gl.uniform2f(location, v0, v1);
void gl.uniform2fv(location, value);
void gl.uniform2i(location, v0, v1);
void gl.uniform2iv(location, value);

void gl.uniform3f(location, v0, v1, v2);
void gl.uniform3fv(location, value);
void gl.uniform3i(location, v0, v1, v2);
void gl.uniform3iv(location, value);

void gl.uniform4f(location, v0, v1, v2, v3);
void gl.uniform4fv(location, value);
void gl.uniform4i(location, v0, v1, v2, v3);
void gl.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 Float32Array 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

None.

Examples

gl.uniform1f(u_alpha, 0.8);

Specifications

Specification	Status	Comment
WebGL 1.0 The definition of 'uniform' in that specification.	Recommendation	Initial definition.
OpenGL ES 2.0 The definition of 'glUniform' in that specification.	Standard	Man page of the OpenGL API.

Browser compatibility

See also

• WebGLRenderingContext.uniformMatrix()