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ID | Project | Category | View Status | Date Submitted | Last Update | ||||
0011912 | VTK | (No Category) | public | 2011-03-01 08:11 | 2013-06-05 16:10 | ||||
Reporter | Sergey Slyadnev | ||||||||
Assigned To | Jean-Christophe Fillion-Robin | ||||||||
Priority | normal | Severity | minor | Reproducibility | always | ||||
Status | closed | Resolution | fixed | ||||||
Platform | OS | OS Version | |||||||
Product Version | |||||||||
Target Version | Fixed in Version | 5.10.1 | |||||||
Summary | 0011912: vtkXOpenGLRenderWindow: blank window appears in off-screen rendering mode | ||||||||
Description | Tests were performed on Red Hat 5.5 (64bit) with VTK 5.6.1. I've tried to enable the off-screen rendering mode on both Windows & Linux platforms with vtkRenderWindow::SetOffScreenRendering() method. While it works properly on Windows, the blank rendering window is surprisingly displayed on Linux. Here is my sample code: ========================================================================== vtkSmartPointer<vtkRenderWindow> aRenderWindow = vtkSmartPointer<vtkRenderWindow>::New(); vtkSmartPointer<vtkRenderer> aRenderer = vtkSmartPointer<vtkRenderer>::New(); aRenderWindow->AddRenderer(aRenderer); aRenderWindow->SetOffScreenRendering(1); aRenderWindow->SetSize(600, 600); vtkSmartPointer<vtkCamera> aCamera = aRenderer->GetActiveCamera(); aCamera->ParallelProjectionOn(); aCamera->SetPosition(1.0, 1.0, 1.0); aRenderer->ResetCamera(); vtkSmartPointer<vtkActor> anActor = vtkSmartPointer<vtkActor>::New(); vtkSmartPointer<vtkPolyDataMapper> aMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); vtkSmartPointer<vtkSphereSource> aSphereSource = vtkSmartPointer<vtkSphereSource>::New(); aMapper->SetInput( aSphereSource->GetOutput() ); anActor->SetMapper(aMapper); aRenderer->AddActor(anActor); vtkSmartPointer<vtkPNGWriter> aPNGWriter = vtkSmartPointer<vtkPNGWriter>::New(); vtkSmartPointer<vtkWindowToImageFilter> aWinToImageFilter = vtkSmartPointer<vtkWindowToImageFilter>::New(); aWinToImageFilter->SetInput(aRenderWindow); aWinToImageFilter->SetInputBufferTypeToRGB(); aWinToImageFilter->SetMagnification(1); aWinToImageFilter->ShouldRerenderOn(); aWinToImageFilter->Update(); aPNGWriter->SetInput( aWinToImageFilter->GetOutput() ); aPNGWriter->SetFileName("sphere_output.png"); aPNGWriter->Write(); ========================================================================== It seems like there is a problem in vtkXOpenGLRenderWindow, line 0000643: ================================================= if(this->OwnWindow) { ... XMapWindow(this->DisplayId, this->WindowId); ... ================================================= This code is executed even in the off-screen rendering mode. I've used the following patch to prevent the window from mapping: ================================================= if(this->OwnWindow !this->OffScreenRendering) { ... XMapWindow(this->DisplayId, this->WindowId); ... ================================================= I resolves the problem with the blank window. Do you think it is possible to apply that patch on future versions of VTK? | ||||||||
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Notes | |
(0030919) Jean-Christophe Fillion-Robin (manager) 2013-06-05 16:09 |
Updated test case: http://www.vtk.org/Bug/view.php?id=11911#c30917 [^] |
(0030920) Jean-Christophe Fillion-Robin (manager) 2013-06-05 16:10 |
Off screen rendering has been tested using VTK 6 (384636ec) and VTK 5.10.1 on Ubuntu 10.04 using the provided testcase and it works as expected. |
Notes |
Issue History | |||
Date Modified | Username | Field | Change |
2011-03-01 08:11 | Sergey Slyadnev | New Issue | |
2013-06-05 16:08 | Jean-Christophe Fillion-Robin | Relationship added | related to 0011911 |
2013-06-05 16:09 | Jean-Christophe Fillion-Robin | Assigned To | => Jean-Christophe Fillion-Robin |
2013-06-05 16:09 | Jean-Christophe Fillion-Robin | Status | backlog => tabled |
2013-06-05 16:09 | Jean-Christophe Fillion-Robin | Note Added: 0030919 | |
2013-06-05 16:10 | Jean-Christophe Fillion-Robin | Note Added: 0030920 | |
2013-06-05 16:10 | Jean-Christophe Fillion-Robin | Status | tabled => closed |
2013-06-05 16:10 | Jean-Christophe Fillion-Robin | Resolution | open => fixed |
2013-06-05 16:10 | Jean-Christophe Fillion-Robin | Fixed in Version | => 5.10.1 |
Issue History |
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