WebGLRenderingContext.attachShader()

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

Syntax

JavaScript

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void <var>gl.attach</var>Shader<var>(program, shader);</var>

Parameters

program: A WebGLProgram.
shader: A fragment or vertex WebGLShader.

Examples

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

JavaScript

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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.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	9	4.0 (2.0)	11	12	5.1

Feature	Android	Chrome for Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	25	(Yes)	?	12	8.1

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/webglrenderingcontext/attachshader

Method WebGL