The WebGLRenderingContext.getShaderInfoLog returns the information log for the specified WebGLShader
object. It contains warnings, debugging and compile information.
Syntax
gl.getShaderInfoLog(shader);
Parameters
- shader
- A
WebGLShader
to query.
Return value
A DOMString
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
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'getShaderInfoLog' in that specification. |
Recommendation | Initial definition. |
OpenGL ES 2.0 The definition of 'glGetShaderInfoLog' in that specification. |
Standard | Man page of the OpenGL API. |
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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getShaderInfoLog | Chrome Full support 9 | Edge Full support 12 | Firefox Full support 4 | IE Full support 11 | Opera Full support 12 | Safari Full support 5.1 | WebView Android Full support Yes | Chrome Android Full support 25 | Firefox Android Full support Yes | Opera Android Full support 12 | Safari iOS Full support 8 | Samsung Internet Android Full support 1.5 |
Legend
- Full support
- Full support
See also
WebGLRenderingContext.getShaderParameter()
– used withgl.COMPILE_STATUS
to check for a failed compile.WebGLRenderingContext.getError()