WebGLRenderingContext: getProgramInfoLog() 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.getProgramInfoLog returns the information
log for the specified WebGLProgram object. It contains errors that
occurred during failed linking or validation of WebGLProgram objects.
Syntax
js
getProgramInfoLog(program)
Parameters
program-
The
WebGLProgramto query.
Return value
A string 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
js
const program = gl.createProgram();
// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.getProgramInfoLog(program);
Specifications
| Specification |
|---|
| WebGL Specification # 5.14.9 |
Browser compatibility
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