WebGLRenderingContext: createProgram() method

The WebGLRenderingContext.createProgram() method of the WebGL API creates and initializes a WebGLProgram object.

Syntax

createProgram()

Parameters

None.

Return value

A WebGLProgram object that is a combination of two compiled WebGLShaders consisting of a vertex shader and a fragment shader (both written in GLSL). These are then linked into a usable program.

Examples

Creating a WebGL program

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 new Error(`Could not compile WebGL program. \n\n${info}`);
}

See WebGLShader for information on creating the vertexShader and fragmentShader in the above example.

Specifications

Browser compatibility

See also

• WebGLRenderingContext.deleteProgram()
• WebGLRenderingContext.isProgram()
• WebGLRenderingContext.linkProgram()
• WebGLRenderingContext.useProgram()
• WebGLRenderingContext.validateProgram()
• WebGLRenderingContext.getProgramParameter()
• WebGLRenderingContext.getProgramInfoLog()