Simple query. I am trying to get access to the GL_MAX_RENDERBUFFER_SIZE
value using pyOpengl using the following:
size= glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE)
But I get the following error
File c:\Python\Miniconda3\envs\opengl\Lib\site-packages\OpenGL\error.py:230, in _ErrorChecker.glCheckError(self, result, baseOperation, cArguments, *args)
228 err = self._currentChecker()
229 if err != self._noErrorResult:
--> 230 raise self._errorClass(
231 err,
232 result,
233 cArguments = cArguments,
234 baseOperation = baseOperation,
235 )
236 return result
GLError: GLError(
err = 1282,
description = b'invalid operation',
baseOperation = glGetIntegerv,
pyArgs = (
GL_MAX_RENDERBUFFER_SIZE,
,
),
cArgs = (
GL_MAX_RENDERBUFFER_SIZE,
array([0], dtype=int32),
),
cArguments = (
GL_MAX_RENDERBUFFER_SIZE,
array([0], dtype=int32),
)
)
What is the correct way of retrieving this information?
'invalid operation' indicates that you are trying to retrieve the parameter before the OpenGL Context has been created. Usually, the OpenGL Context is created along with the OpenGL window. You cannot use any OpenGL API function until this is done.