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 errors
/* load shader source code. */
gl.shaderSource(shader, shaderCode);
/* compile shader source code. */
gl.compileShader(shader);
var error = gl.getShaderInfoLog(shader);
if(error.length > 0) {
throw error;
}
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
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 9 | 12 | 4.0 (2.0) | 11 | 12 | 5.1 |
See also
WebGLRenderingContext.getShaderParameter()
– used withgl.COMPILE_STATUS
to check for a failed compile.WebGLRenderingContext.getError()