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WebGLRenderingContext.getShaderInfoLog()

The WebGLRenderingContext.getShaderInfoLog returns the information log for the specified WebGLShader object. It contains warnings, debugging and compile information.

Syntax

getShaderInfoLog(shader)

Parameters

shader

A WebGLShader to query.

Return value

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

Examples

Checking compilation messages

/* load shader source code. */
gl.shaderSource(shader, shaderCode);

/* compile shader source code. */
gl.compileShader(shader);

var message = gl.getShaderInfoLog(shader);

if (message.length > 0) {
  /* message may be an error or a warning */
  throw message;
}

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
getShaderInfoLog
9
12
4
11
12
5.1
4.4.3
25
4
12
8
1.5

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/getShaderInfoLog