WebGLRenderingContext: attachShader() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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

Syntax

js
attachShader(program, shader)

Parameters

program

A WebGLProgram.

shader

A fragment or vertex WebGLShader.

Examples

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

js
const 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)) {
  const info = gl.getProgramInfoLog(program);
  throw `Could not compile WebGL program. \n\n${info}`;
}

Specifications

Specification
WebGL Specification
# 5.14.9

Browser compatibility

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See also