WebGLRenderingContext.getProgramInfoLog()

The WebGLRenderingContext.getProgramInfoLog returns the information log for the specified WebGLProgram object. It contains errors that occurred during failed linking or validation of WebGLProgram objects.

Syntax

gl.getProgramInfoLog(program);

Parameters

program

A WebGLProgram to query.

Return value

A DOMString that contains diagnostic messages, warning messages, and other information about the last linking or validation operation. When a WebGLProgram object is initially created, its information log will be a string of length 0.

Examples

Checking program errors

var program = gl.createProgram();
// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.getProgramInfoLog(program);

Specifications

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

See also

• WebGLRenderingContext.getShaderInfoLog()
• WebGLRenderingContext.getError()