WebGLRenderingContext: attachShader() method

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