Returns the information log for a shader object
Signature
Parameters
| Variables | Description |
|---|---|
| shader |
Specifies the shader object whose information
log is to be queried.
|
| maxLength |
Specifies the size of the character buffer for
storing the returned information log.
|
| length |
Returns the length of the string returned in
infoLog
(excluding the null
terminator).
|
| infoLog |
Specifies an array of characters that is used
to return the information log.
|
Description
glGetShaderInfoLog
returns the
information log for the specified shader object. The information
log for a shader object is modified when the shader is compiled.
The string that is returned will be null terminated.
glGetShaderInfoLog
returns in
infoLog
as much of the information log as
it can, up to a maximum of
maxLength
characters. The number of characters actually returned,
excluding the null termination character, is specified by
length
. If the length of the returned
string is not required, a value of
NULL
can
be passed in the
length
argument. The
size of the buffer required to store the returned information
log can be obtained by calling
glGetShader
with the value
GL_INFO_LOG_LENGTH
.
The information log for a shader object is a string that
may contain diagnostic messages, warning messages, and other
information about the last compile operation. When a shader
object is created, its information log will be a string of
length 0.
Notes
The information log for a shader object is the OpenGL
implementer's primary mechanism for conveying information about
the compilation process. Therefore, the information log can be
helpful to application developers during the development
process, even when compilation is successful. Application
developers should not expect different OpenGL implementations to
produce identical information logs.
Errors
GL_INVALID_VALUE
is generated if
shader
is not a value generated by
OpenGL.
GL_INVALID_OPERATION
is generated if
shader
is not a shader object.
GL_INVALID_VALUE
is generated if
maxLength
is less than 0.
See Also
Copyright
Copyright
2003-2005 3Dlabs Inc. Ltd.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
http://opencontent.org/openpub/
.
Sample Code References
The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.
glGetShaderInfoLog