[Qt-interest] paintGL and qDebug()

Sajjad dosto.walla at gmail.com
Sun Sep 12 16:20:32 CEST 2010


Hello forum,


I am having a  strage behavior using the QGLWidget . In the paintGL() i have
the following code snippet:


****************************************************************************************************
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    M3DMatrix33f  transformationMatrix;

    qDebug() << "So far fine here";

    //build the rotation matrix

m3dRotationMatrix44(transformationMatrix,m3dDegToRad(yRot),0.0f,1.0f,0.0f);

    transformationMatrix[12] = 0.0f;
    transformationMatrix[13] = 0.0f;
    transformationMatrix[14] = -2.5f;

    drawTorus(transformationMatrix);



****************************************************************************************************


It runs fine and show the torus in the wired frame mode. But it crashes if i
comment the above qDebug() line.


Any idea why it is happening?


Regards
Sajjad
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