Hi,
I’m getting confused with which types of vtkDataSets stored in composite datasets can be volume rendered. If I have a multiblock of vtkImageDatas the GUI doesn’t provide me with the volume representation. For a multiblock of vtkUnstructuredGrids though I do get the volume representation option but it doesn’t appear correct in the following image:
I’ve attached the state file from ParaView 5.6 volume_and_surface_representations.pvsm (681.8 KB) to help show the issue. For a multiblock of vtkStructuredGrids I also get the volume representation option but nothing is shown in the 3D render view and I get the following error when I try to use it:
ERROR: In /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release_superbuild/build/superbuild/paraview/src/VTK/Common/ExecutionModel/vtkCompositeDataPipeline.cxx, line 164
vtkPVDataRepresentationPipeline (0x6989ef0): Can not execute simple algorithm without output ports
ERROR: In /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release_superbuild/build/superbuild/paraview/src/VTK/Common/ExecutionModel/vtkExecutive.cxx, line 782
vtkPVCacheKeeperPipeline (0x65782f0): Algorithm vtkPVCacheKeeper(0xfc30e30) returned failure for request: vtkInformation (0x6578860)
Debug: Off
Modified Time: 9853171
Reference Count: 1
Registered Events: (none)
Request: REQUEST_DATA_OBJECT
ALGORITHM_AFTER_FORWARD: 1
FORWARD_DIRECTION: 0
I’m not sure if it matters or not but for the multiblock of vtkStructuredGrids the extents are nearly the same for each block even though the actual geometry of each block doesn’t overlap. This dataset is a probably a bit big to share here but I have a similar dataset that I need to get to @cory.quammen anyway that can be used to duplicate the issue.
Thanks,
Andy