WebGLRenderingContext: validateProgram() 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.

Note: This feature is available in Web 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);