WebGLRenderingContext: validateProgram() method

Available in workers

The WebGLRenderingContext.validateProgram() method of the WebGL API validates a WebGLProgram. It checks if it is successfully linked and if it can be used in the current WebGL state.

Syntax

validateProgram(program)

Parameters

• program
  • : A WebGLProgram to validate.

Return value

None (undefined).

Examples

const program = gl.createProgram();

// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);

gl.linkProgram(program);
gl.validateProgram(program);

if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
  const info = gl.getProgramInfoLog(program);
  throw new Error(`Could not compile WebGL program. \n\n${info}`);
}

gl.useProgram(program);

Specifications

Browser compatibility

See also

• createProgram()
• deleteProgram()
• isProgram()
• linkProgram()
• useProgram()
• getProgramParameter()
• getProgramInfoLog()