WebGLRenderingContext.attachShader()

The WebGLRenderingContext.attachShader() method of the WebGL API attaches either a fragment or vertex WebGLShader to a WebGLProgram.

Syntax

void gl.attachShader(program, shader);

Parameters

program
A WebGLProgram.
shader
A fragment or vertex WebGLShader.

Examples

The following code attaches pre-existing shaders to a WebGLProgram.

var program = gl.createProgram();

// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);

gl.linkProgram(program);

if ( !gl.getProgramParameter( program, gl.LINK_STATUS) ) {
  var info = gl.getProgramInfoLog(program);
  throw 'Could not compile WebGL program. \n\n' + info;
}

Specifications

Specification Status Comment
WebGL 1.0
The definition of 'attachShader' in that specification.
Recommendation Initial definition.
OpenGL ES 2.0
The definition of 'glAttachShader' in that specification.
Standard OpenGL man page.

Browser compatibility

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See also