Hello I just tested the hellogl.py example from the latest PyQt-mac-gpl-4.8.6 package. I do get the same error on OS X Lion.
I have a PyQT app which worked nicely on OS X Snow Leopard. I changed to OS X Lion and made the latest macports update. Since then I get this error. I don't know if it's related to my latest macports update or the migration to Lion. Does anybody have an idea how to correct this problem ? Michka > Hi everybody! > > Since being on Lion, I have problems with my C++ Qt and PyQt OpenGL > applications. In basically every PyQt script that uses QGLWidget, I get this > error: > > PyQt-mac-gpl-4.8.5/examples/opengl $ ./hellogl.py > Traceback (most recent call last): > File "./hellogl.py", line 154, in paintGL > GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT) > File "errorchecker.pyx", line 50, in > OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError > (src/errorchecker.c:574) > OpenGL.error.GLError: GLError( > err = 1286, > description = 'invalid framebuffer operation', > baseOperation = glClear, > cArguments = (16640,) > ) > > This example is the hellogl example from the PyQt distribution. It seems that > the QGLWidget gets a paintGL event even when the framebuffer is not yet > complete. The same happens with some of my more complex C++ Qt applications, > which indicates that this might rather be a Qt problem. Did anyone else > notice this, and is there a fix / workaround? Problem is, that it might lead > to lots of problems further down the road, since some of my programs rely on > the first GL command actually working correctly. > > Cheers, > > Arne > > -- > Dipl.-Inform. Arne Schmitz Phone +49 (0)241 80-21817 > Computer Graphics Group Mobile +49 (0)151 29145947 > RWTH Aachen University Fax +49 (0)241 80-22899 > Ahornstrasse 55, 52074 Aachen, Germany http://www.rwth-graphics.de
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