WebGLRenderingContext.validateProgram

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

void gl.validateProgram(program);

Parameters

program

A WebGLProgram to validate.

Return value

None.

Examples

var 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) ) {
  var info = gl.getProgramInfoLog(program);
  throw 'Could not compile WebGL program. \n\n' + info;
}

gl.useProgram(program);

Specifications

Specification	Status	Comment
WebGL 1.0 The definition of 'validateProgram' in that specification.	Recommendation	Initial definition.
OpenGL ES 2.0 The definition of 'glValidateProgram' in that specification.	Standard	Man page of the OpenGL API.

Browser compatibility

See also

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