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- The
WebGLProgramto 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
| 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 compatibility
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