[vtkusers] IsRenderSupported method crash

[Sebastien Jourdain]

Hi Max,

I've seen some issue on windows when trying to cleanup the memory from
the vtkPanel. But I don't see the link between the first part of your
mail about "IsRenderSupported" and the "RemoveAllProps"...

Could you explain more that part about why you created a
"finalize/shutdown" code ?

Thanks,

Seb

On Fri, Jul 15, 2011 at 4:40 PM, EvilMax <maxim.privalov at gmail.com> wrote:
> Hello!
>
>
> I have a problem working with VTK rendering panel and ray cast mapping in
> Java application.  It runs once, but crashes on second attempt when getting
> render capablities. Code is following:
>
>
> //  Get rendering panel
>                RistorRenderWindowPanel rp = getRenderingPanel().getRenderWindowPanel(0);
>                vtkVolumeProperty volumeProperty = new vtkVolumeProperty();
> // Setup opacity/colo transfer functions
>                TransferFunctionPreset preset = model.getPreset().clone();
>                volumeProperty.SetScalarOpacity(preset
>                                .getScalarOpacityFunction().convertToVTK(model.getOffset()));
>                volumeProperty.SetColor(model.getPreset().getColorTransferFunction()
>                                .convertToVTK(model.getOffset()));
>                volumeProperty.ShadeOn();
>                volumeProperty.SetInterpolationTypeToLinear();
>
> // Add ray cast mapper to use OpenGL hardware accelerated ray casting
>                vtkVolumeMapper rayCastMapper;
>                vtkGPUVolumeRayCastMapper gpuMapper = new
> vtkOpenGLGPUVolumeRayCastMapper();
>
>
>                rayCastMapper = gpuMapper;
>                rayCastMapper.SetBlendModeToComposite();
>                rayCastMapper.SetInput(model.getVolume());
>
> // Create volume and add to it property and mapper
>                vtkVolume volume = getVolume();
>                volume.SetMapper(rayCastMapper);
>                volume.SetProperty(volumeProperty);
>
> // Bind to render panel
>                rp.GetRenderer().AddViewProp(volume);
>
> // Pre-render and test capabilities
>                rp.Render();
>                if(gpuMapper.IsRenderSupported(rp.GetRenderWindow(), volumeProperty)==0)
>                {
>                        rayCastMapper = new vtkVolumeRayCastMapper();
>                        ((vtkVolumeRayCastMapper)
> rayCastMapper).SetVolumeRayCastFunction(compositeFunction);
>                        rayCastMapper.SetBlendModeToComposite();
>                        rayCastMapper.SetInput(model.getVolume());
>                }
>
>
> After that resetCamera() and Render()  methods are called to perform clean
> render. Render window panel is embedded to Java Swing panel and pipeline
> creation and render are called upon showing it. But on second showing JVM
> crashed on *if(gpuMapper.IsRenderSupported(rp.GetRenderWindow(),
> volumeProperty)==0)* code. JVM complains on msvcr100.dll and stack trace to
> raycast mapper. In VTK log file I see following:
>
> *ERROR: In vtkWin32OpenGLRenderWindow.cxx, line 247
> vtkWin32OpenGLRenderWindow (0503DA78): wglMakeCurrent failed in
> MakeCurrent(), error: The handle is invalid.*
>
> I've searched this lilsts and found some proposals. So I've created
> 'finalizing' code:
>
>
> void shutdown()
>        {
>                RistorRenderWindowPanel rp = getRenderingPanel().getRenderWindowPanel(0);
>                if (rp !=null)
>                {
>                        if (rp.GetRenderer() != null)
>                        {
>                                rp.GetRenderer().RemoveAllViewProps();
>                                rp.GetRenderWindow().GetInteractor().SetRenderWindow(null);
>                                if (rp.GetRenderWindow().GetInteractor() != null)
>                                {
>                                        LOG.info("Delete interactor");
>                                        rp.GetRenderWindow().GetInteractor().Delete();
>                                }
>                                rp.GetRenderer().GetRenderWindow().Finalize();
>                                rp.GetRenderer().GetRenderWindow().Delete();
>                                rp.GetRenderer().Delete();
>                        }
>                }
>                System.gc();
> }
>
>
> It seems somehow redundant, but this is code from several experiments.
> Anyway it has no effect: crash on second pipeline building is inevitable.
>
> More experiments. If not to render, just build pipeline, second 'shutdown'
> crashes on rp.GetRenderer().RemoveAllViewProps();  In this time JVM complans
> to vtkFiltering.dll and removing viewprops method.
>
>
> Stack: [0x0a7d0000,0x0a820000],  sp=0x0a81e8a0,  free space=314k
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
> code)
> C  [vtkFiltering.dll+0x139293]
> j  vtk.vtkViewport.RemoveAllViewProps_6()V+0
> [..skip..]
>
>
> Need any help that VTK guru's can provide.
>
> P.S. Some more diagnostics data.
> VTK 5.6.1  (build with VS2010)
> JVM: 6.0_24 b07
>
> --
> View this message in context: http://vtk.1045678.n5.nabble.com/IsRenderSupported-method-crash-tp4592105p4592105.html
> Sent from the VTK - Users mailing list archive at Nabble.com.
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