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
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See also
WebGLRenderingContext.getShaderParameter()
โ used withgl.COMPILE_STATUS
to check for a failed compile.WebGLRenderingContext.getError()