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.
SyntaxEdit
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.
ExamplesEdit
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);
SpecificationsEdit
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'getProgramInfoLog' in that specification. |
Recommendation | Initial definition. |
OpenGL ES 2.0 The definition of 'glGetProgramInfoLog' in that specification. |
Standard | Man page of the OpenGL API. |
Browser compatibilityEdit
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 9 | 12 | 4.0 (2.0) | 11 | 12 | 5.1 |