On 9/12/2008 1:32 PM, V. Armando Sole wrote:
At 12:17 12/09/2008 +0200, Giovanni Bajo wrote:
On 9/12/2008 12:12 PM, V. Armando Sole wrote:
Hello,
QGLWidget.renderText gives me an OpenGL error for Qt versions >=
4.3.0 that prevents any further OpenGL output.
Those are Qt bugs, not PyQt nor PyOpenGL bugs. Some of them have
already been fixed and are in the process of being released. Check
Trolltech's task tracker about it.
Wrong. It is the new implementation of QGLWidget.renderText() confusing
PyOpenGL error checking:
http://pyopengl.sourceforge.net/ctypes/using.html
Just adding a method to the previous code solves the problem.
if qt.qVersion() >= '4.3.0':
def renderText(self, x, y, z, text, font):
GL.glGetError()
qt.QGLWidget.renderText(self, x, y, z, text, font)
GL.glGetError()
This shows exactly that I am right and that this is a Qt bug. And it's
already been fixed, as I said. I know because I have fixed myself this
and other OpenGL compatibility bugs in Qt (specifically related to
renderText).
renderText() (like any other Qt function) shouldn't return and leave a
GL error pending; this is the symptom you're seeing. The bug lies within
the renderText() implementation which does a mistake so that it
generates a GL error on specific video cards.
--
Giovanni Bajo
Develer S.r.l.
http://www.develer.com
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