[osg-users] porting from osg-3.4.0 to osg-3.6.3

[Herman Varma]

Hi,
Hi Robert



I down down further to this statement

m_pOsgViewer->frame();//
      
In 3.4.0 it executes and in 3.6.3 it bombs here


The full code is posted below
void vtScene::UpdateWindow(vtWindow *pWindow)
{
       if (!m_bInitialized) return;

       // window background color
       osg::Vec4 color2;
       v2s(pWindow->GetBgColor(), color2);
       m_pOsgViewer->getCamera()->setClearColor(color2);

       // window size
       IPoint2 winsize = pWindow->GetSize();
       if (winsize.x == 0 || winsize.y == 0)
       {
              VTLOG("Warning: winsize %d %d\n", winsize.x, winsize.y);
              return;
       }
       m_pOsgViewer->getCamera()->setViewport(0, 0, winsize.x, winsize.y);

       // As of OSG 0.9.5, we need to store our own camera params and recreate
       //  the projection matrix each frame.
       float aspect;
       if (winsize.x == 0 || winsize.y == 0)           // safety
              aspect = 1.0;
       else
              aspect = (float) winsize.x / winsize.y;

       if (m_pCamera->IsOrtho())
       {
              // Arguments are left, right, bottom, top, zNear, zFar
              float w2 = m_pCamera->GetWidth() /2;
              float h2 = w2 / aspect;
              m_pOsgViewer->getCamera()->setProjectionMatrixAsOrtho(-w2, w2, -h2, h2,
                     m_pCamera->GetHither(), m_pCamera->GetYon());
       }
       else
       {
              float fov_x = m_pCamera->GetFOV();
              float a = tan (fov_x/2);
              float b = a / aspect;
              float fov_y_div2 = atan(b);
              float fov_y_deg = osg::RadiansToDegrees(fov_y_div2 * 2);

              m_pOsgViewer->getCamera()->setProjectionMatrixAsPerspective(fov_y_deg,
                     aspect, m_pCamera->GetHither(), m_pCamera->GetYon());
       }


       // And apply the rotation and translation of the camera itself
       const osg::Matrix &mat2 = m_pCamera->getMatrix();
       osg::Matrix imat;


       imat.invert(mat2);

       m_pOsgViewer->getCamera()->setViewMatrix(imat);
       m_pOsgViewer->getCamera()->setCullMask(0x3);
       // Also set the mask for the case of split-screen stereo
       m_pOsgViewer->getCamera()->setCullMaskLeft(0x3);
       m_pOsgViewer->getCamera()->setCullMaskRight(0x3);

       m_pOsgViewer->frame();// ***************************It bombs on this statement

       
}

I also ran it in debug mode and posted a diagnostic.jpg of the resulting
debug screen

Thank you!

Cheers,
Herman

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=75049#75049




Attachments: 
http://forum.openscenegraph.org//files/diagnostic_569.jpg