WebGLRenderingContext: getShaderInfoLog() 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.getShaderInfoLog returns the information log
for the specified WebGLShader object. It contains warnings, debugging and
compile information.
Syntax
js
getShaderInfoLog(shader)
Parameters
shader-
A
WebGLShaderto query.
Return value
A string 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
js
/* load shader source code. */
gl.shaderSource(shader, shaderCode);
/* compile shader source code. */
gl.compileShader(shader);
const message = gl.getShaderInfoLog(shader);
if (message.length > 0) {
/* message may be an error or a warning */
throw message;
}
Specifications
| Specification |
|---|
| WebGL Specification # 5.14.9 |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
getShaderInfoLog | ||||||||||||
See also
WebGLRenderingContext.getShaderParameter()– used withgl.COMPILE_STATUSto check for a failed compile.WebGLRenderingContext.getError()