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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

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 9 12 4 11 12 5.1
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support Yes 25 Yes Yes 11 12 8.1

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/attachShader