You can try that. If it does not work, its a very minor change, hopefully you can find the file and change it manually.
Thanks, On Mon, Dec 7, 2015 at 8:58 PM, Thomas Oliveira <thomas.olive...@gmail.com> wrote: > Dear Aashish, > > I tried to build ParaView from master, but I get an error that is the > subject of another discussion on the list ("Error while building, > H5_SIZEOF_SIZE_T is undefined"). Could I try to apply the patch on some > version available from http://www.paraview.org/download/, maybe a nightly > build? > > Best wishes, > > Thomas > > On Thu, Dec 3, 2015 at 5:31 AM, Aashish Chaudhary < > aashish.chaudh...@kitware.com> wrote: > >> Dear Thomas, >> >> If it is possible for you to build ParaView from master (as of today) >> with OpenGL2 backend, then apply this patch (attached) and see if this >> works for you. This might work on older version or OpenGL1 backend but I >> haven't tested it, so use at your risk. Once applied and build, you can >> find for "Interpolation" option in advance search box. It will show >> "Nearest, Linear, and Cubic". >> >> Thanks, >> >> >> On Wed, Dec 2, 2015 at 11:59 AM, Aashish Chaudhary < >> aashish.chaudh...@kitware.com> wrote: >> >>> Hi Thomas, >>> >>> Please find the attached image which I rendered using VTK code and in >>> there I used nearest interpolation. Please let me know if this is what you >>> expect. I will see if we can push a change to ParaView to expose this >>> feature. >>> >>> Thanks, >>> >>> >>> int TestGPURayCastVolumeUpdate(int argc, char *argv[]) >>> >>> { >>> >>> cout << "CTEST_FULL_OUTPUT (Avoid ctest truncation of output)" << endl; >>> >>> >>> double scalarRange[2]; >>> >>> >>> vtkNew<vtkActor> outlineActor; >>> >>> vtkNew<vtkPolyDataMapper> outlineMapper; >>> >>> vtkNew<vtkGPUVolumeRayCastMapper> volumeMapper; >>> >>> >>> vtkNew<vtkImageReader2> reader; >>> >>> >>> reader->SetFilePrefix("/home/chaudhary/tools/paraview_main/Image/Berea.raw"); >>> >>> reader->SetFilePattern("%s"); >>> >>> reader->SetFileDimensionality(3); >>> >>> reader->SetDataByteOrderToLittleEndian(); >>> >>> reader->SetDataScalarTypeToUnsignedChar(); >>> >>> reader->SetDataExtent(0, 399, 0, 399, 0, 399); >>> >>> reader->SetFileLowerLeft(1); >>> >>> reader->SetDataOrigin(0, 0, 0); >>> >>> reader->SetDataSpacing(1.0, 1.0, 1.0); >>> >>> reader->SetInputArrayToProcess(0, 0, 0, >>> vtkDataObject::FIELD_ASSOCIATION_POINTS, "ImageFile"); >>> >>> reader->Update(); >>> >>> >>> volumeMapper->SetInputConnection(reader->GetOutputPort()); >>> >>> >>> // Add outline filter >>> >>> vtkNew<vtkOutlineFilter> outlineFilter; >>> >>> outlineFilter->SetInputConnection(reader->GetOutputPort()); >>> >>> outlineMapper->SetInputConnection(outlineFilter->GetOutputPort()); >>> >>> outlineActor->SetMapper(outlineMapper.GetPointer()); >>> >>> >>> volumeMapper->GetInput()->GetScalarRange(scalarRange); >>> >>> volumeMapper->SetAutoAdjustSampleDistances(0); >>> >>> volumeMapper->SetBlendModeToComposite(); >>> >>> >>> vtkNew<vtkRenderWindow> renWin; >>> >>> renWin->SetMultiSamples(0); >>> >>> renWin->SetSize(400, 400); >>> >>> >>> vtkNew<vtkRenderWindowInteractor> iren; >>> >>> iren->SetRenderWindow(renWin.GetPointer()); >>> >>> vtkNew<vtkInteractorStyleTrackballCamera> style; >>> >>> iren->SetInteractorStyle(style.GetPointer()); >>> >>> >>> renWin->Render(); // make sure we have an OpenGL context. >>> >>> >>> vtkNew<vtkRenderer> ren; >>> >>> ren->SetBackground(0.2, 0.2, 0.5); >>> >>> renWin->AddRenderer(ren.GetPointer()); >>> >>> >>> vtkNew<vtkPiecewiseFunction> scalarOpacity; >>> >>> scalarOpacity->AddPoint(0.0, 0.0); >>> >>> scalarOpacity->AddPoint(0.4, 0.0); >>> >>> scalarOpacity->AddPoint(0.4, 0.1); >>> >>> scalarOpacity->AddPoint(1.0, 0.2); >>> >>> >>> vtkNew<vtkVolumeProperty> volumeProperty; >>> >>> * volumeProperty->SetInterpolationType(VTK_NEAREST_INTERPOLATION);* >>> >>> volumeProperty->SetScalarOpacity(scalarOpacity.GetPointer()); >>> >>> volumeProperty->ShadeOn(); >>> >>> >>> vtkNew<vtkColorTransferFunction> colorTransferFunction; >>> >>> colorTransferFunction->RemoveAllPoints(); >>> >>> colorTransferFunction->AddRGBPoint(scalarRange[0], 0.6, 0.4, 0.4); >>> >>> colorTransferFunction->AddRGBPoint(scalarRange[1], 1.0, 1.0, 0.4); >>> >>> volumeProperty->SetColor(colorTransferFunction.GetPointer()); >>> >>> >>> vtkNew<vtkVolume> volume; >>> >>> volume->SetMapper(volumeMapper.GetPointer()); >>> >>> volume->SetProperty(volumeProperty.GetPointer()); >>> >>> >>> /// Add sphere in the center of volume >>> >>> int dims[3]; >>> >>> double spacing[3], center[3], origin[3]; >>> >>> reader->Update(); >>> >>> vtkSmartPointer<vtkImageData> im = reader->GetOutput(); >>> >>> im->GetDimensions(dims); >>> >>> im->GetOrigin(origin); >>> >>> im->GetSpacing(spacing); >>> >>> >>> center[0] = origin[0] + spacing[0]*dims[0]/2.0; >>> >>> center[1] = origin[1] + spacing[1]*dims[1]/2.0; >>> >>> center[2] = origin[2] + spacing[2]*dims[2]/2.0; >>> >>> >>> ren->AddVolume(volume.GetPointer()); >>> >>> ren->AddActor(outlineActor.GetPointer()); >>> >>> ren->ResetCamera(); >>> >>> renWin->Render(); >>> >>> >>> iren->Initialize(); >>> >>> iren->Start(); >>> >>> } >>> >>> >>> On Wed, Dec 2, 2015 at 10:13 AM, Aashish Chaudhary < >>> aashish.chaudh...@kitware.com> wrote: >>> >>>> Thomas, >>>> >>>> I am looking at your data in VTK. I will report back. In ParaView, you >>>> cannot choose linear or nearest as of now. We have a plan to expose all of >>>> the volume property parameters in ParaView (hopefully soon). >>>> >>>> Thanks, >>>> >>>> >>>> On Mon, Nov 30, 2015 at 3:06 PM, Thomas Oliveira < >>>> thomas.olive...@gmail.com> wrote: >>>> >>>>> Dear Aashish, >>>>> >>>>> Can I choose the interpolation (linear vs nearest) or is it hard-coded >>>>> on the call of VTK from Paraview? >>>>> >>>>> A dataset can be downloaded from >>>>> http://www3.imperial.ac.uk/pls/portallive/docs/1/33505696.ZIP . >>>>> Please extract the Berea.raw file from the zip. >>>>> I loaded it using: >>>>> """ >>>>> Raw (binary) Files >>>>> Data Scalar Type: unsigned char >>>>> Data Byte Order: Little Endian >>>>> Data Extent: 0-399, 0-399, 0-399 >>>>> """ >>>>> >>>>> Thank you for your attention, >>>>> >>>>> Thomas Oliveira >>>>> >>>>> >>>>> On Mon, Nov 30, 2015 at 4:31 PM, Aashish Chaudhary < >>>>> aashish.chaudh...@kitware.com> wrote: >>>>> >>>>>> Thomas, >>>>>> >>>>>> >>>>>> >>>>>> On Mon, Nov 30, 2015 at 10:34 AM, Thomas Oliveira < >>>>>> thomas.olive...@gmail.com> wrote: >>>>>> >>>>>>> Dear Aashish, >>>>>>> >>>>>>> >>>>>>> I'm using Paraview 4.4.0 64-bit , OpenGL Version 4.5.0 NVIDIA >>>>>>> 352.55, OpenGL Renderer Quadro K600/PCIe/SSE2. >>>>>>> >>>>>>> Tweaking the transfer function improved the result, but the corners >>>>>>> are rendererd rounded, whereas in the original file I have only cubic >>>>>>> voxels. >>>>>>> >>>>>> >>>>>> I am wondering if that would be because of the interpolation (linear >>>>>> vs nearest) since linear will smooth out the edges just a bit. Is there a >>>>>> sample dataset you can send my way? >>>>>> >>>>>> >>>>>>> I though that unsetting "Properties > Scalar Coloring > Interpolate >>>>>>> Scalars Before Mapping" would improve the image, but I saw no change. >>>>>>> >>>>>>> You suggested to enable shading, but I couldn't find it. Where is it? >>>>>>> >>>>>> >>>>>> Its on the same panel (left side), scroll to the bottom or search for >>>>>> "shade" you should be see it. >>>>>> >>>>>> - aashish >>>>>> >>>>>>> >>>>>>> >>>>>>> Thank you for your help, >>>>>>> >>>>>>> Thomas Oliveira >>>>>>> >>>>>>> >>>>>>> On Mon, Nov 30, 2015 at 3:07 PM, Aashish Chaudhary < >>>>>>> aashish.chaudh...@kitware.com> wrote: >>>>>>> >>>>>>>> Hi Thomas, >>>>>>>> >>>>>>>> On Mon, Nov 30, 2015 at 8:54 AM, Thomas Oliveira < >>>>>>>> thomas.olive...@gmail.com> wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> The Sample.png file attached is an image of a pore medium. Each >>>>>>>>> voxel in the image is a cube that is either solid or void. >>>>>>>>> >>>>>>>>> The Zoom.png file attached is a zoom of it, where it can be seen >>>>>>>>> that the curved interior solid walls are approximated by a staircase >>>>>>>>> discretization. >>>>>>>>> >>>>>>>>> How can I render this staircase geometry more clearly? >>>>>>>>> >>>>>>>> >>>>>>>> Did you try to tweak the transfer function? Also, you can enable >>>>>>>> shading to have a look of a solid surface. >>>>>>>> >>>>>>>> >>>>>>>>> I have tried tweaking many properties on ParaView but I still get >>>>>>>>> it blurred. >>>>>>>>> >>>>>>>> >>>>>>>> Just to be sure, what version of ParaView you are using and what >>>>>>>> OpenGL backend? >>>>>>>> >>>>>>>>> >>>>>>>>> Thank you for your help, >>>>>>>>> >>>>>>>>> Thomas Oliveira >>>>>>>>> >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Powered by www.kitware.com >>>>>>>>> >>>>>>>>> Visit other Kitware open-source projects at >>>>>>>>> http://www.kitware.com/opensource/opensource.html >>>>>>>>> >>>>>>>>> Please keep messages on-topic and check the ParaView Wiki at: >>>>>>>>> http://paraview.org/Wiki/ParaView >>>>>>>>> >>>>>>>>> Search the list archives at: >>>>>>>>> http://markmail.org/search/?q=ParaView >>>>>>>>> >>>>>>>>> Follow this link to subscribe/unsubscribe: >>>>>>>>> http://public.kitware.com/mailman/listinfo/paraview >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >>>>>>>> * >>>>>>>> *| http://www.kitware.com/company/team/chaudhary.html >>>>>>>> <http://www.kitware.com/company/team/chaudhary.html>* >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>> >>>>>> >>>>>> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >>>>>> * >>>>>> *| http://www.kitware.com/company/team/chaudhary.html >>>>>> <http://www.kitware.com/company/team/chaudhary.html>* >>>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> >>>> >>>> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >>>> * >>>> *| http://www.kitware.com/company/team/chaudhary.html >>>> <http://www.kitware.com/company/team/chaudhary.html>* >>>> >>> >>> >>> >>> -- >>> >>> >>> >>> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >>> * >>> *| http://www.kitware.com/company/team/chaudhary.html >>> <http://www.kitware.com/company/team/chaudhary.html>* >>> >> >> >> >> -- >> >> >> >> *| Aashish Chaudhary | Technical Leader | Kitware Inc. >> * >> *| http://www.kitware.com/company/team/chaudhary.html >> <http://www.kitware.com/company/team/chaudhary.html>* >> > > -- *| Aashish Chaudhary | Technical Leader | Kitware Inc. * *| http://www.kitware.com/company/team/chaudhary.html <http://www.kitware.com/company/team/chaudhary.html>*
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