ENH: Return the distance to the center of the volume for the intersection distance if some opacity is accumulated. This allows the correct compositing of non-overlapping volumes.
ENH: Return the distance to the center of the volume for the intersection
distance if some opacity is accumulated. This allows the correct compositing
of non-overlapping volumes.

sgh/vtk,sgh/vtk,mspark93/VTK,keithroe/vtkoptix,sumedhasingla/VTK,demarle/VTK,demarle/VTK,gram526/VTK,arnaudgelas/VTK,gram526/VTK,keithroe/vtkoptix,cjh1/VTK,aashish24/VTK-old,sumedhasingla/VTK,SimVascular/VTK,sgh/vtk,cjh1/VTK,sankhesh/VTK,jmerkow/VTK,SimVascular/VTK,keithroe/vtkoptix,cjh1/VTK,ashray/VTK-EVM,daviddoria/PointGraphsPhase1,candy7393/VTK,collects/VTK,SimVascular/VTK,collects/VTK,ashray/VTK-EVM,SimVascular/VTK,sumedhasingla/VTK,sgh/vtk,msmolens/VTK,Wuteyan/VTK,keithroe/vtkoptix,aashish24/VTK-old,cjh1/VTK,SimVascular/VTK,keithroe/vtkoptix,demarle/VTK,spthaolt/VTK,candy7393/VTK,Wuteyan/VTK,jeffbaumes/jeffbaumes-vtk,spthaolt/VTK,johnkit/vtk-dev,sumedhasingla/VTK,sumedhasingla/VTK,berendkleinhaneveld/VTK,jmerkow/VTK,collects/VTK,sankhesh/VTK,jmerkow/VTK,Wuteyan/VTK,biddisco/VTK,ashray/VTK-EVM,demarle/VTK,biddisco/VTK,Wuteyan/VTK,sankhesh/VTK,hendradarwin/VTK,hendradarwin/VTK,naucoin/VTKSlicerWidgets,biddisco/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,johnkit/vtk-dev,johnkit/vtk-dev,ashray/VTK-EVM,arnaudgelas/VTK,hendradarwin/VTK,daviddoria/PointGraphsPhase1,msmolens/VTK,sumedhasingla/VTK,Wuteyan/VTK,cjh1/VTK,gram526/VTK,demarle/VTK,gram526/VTK,spthaolt/VTK,mspark93/VTK,sankhesh/VTK,arnaudgelas/VTK,mspark93/VTK,gram526/VTK,demarle/VTK,sumedhasingla/VTK,sankhesh/VTK,Wuteyan/VTK,keithroe/vtkoptix,msmolens/VTK,Wuteyan/VTK,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,collects/VTK,mspark93/VTK,jmerkow/VTK,candy7393/VTK,sankhesh/VTK,aashish24/VTK-old,collects/VTK,jeffbaumes/jeffbaumes-vtk,daviddoria/PointGraphsPhase1,hendradarwin/VTK,berendkleinhaneveld/VTK,demarle/VTK,candy7393/VTK,candy7393/VTK,mspark93/VTK,hendradarwin/VTK,arnaudgelas/VTK,ashray/VTK-EVM,candy7393/VTK,mspark93/VTK,collects/VTK,berendkleinhaneveld/VTK,jeffbaumes/jeffbaumes-vtk,biddisco/VTK,candy7393/VTK,sankhesh/VTK,msmolens/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,msmolens/VTK,johnkit/vtk-dev,biddisco/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,sumedhasingla/VTK,biddisco/VTK,spthaolt/VTK,gram526/VTK,jmerkow/VTK,mspark93/VTK,jeffbaumes/jeffbaumes-vtk,spthaolt/VTK,sankhesh/VTK,biddisco/VTK,jmerkow/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,aashish24/VTK-old,keithroe/vtkoptix,mspark93/VTK,candy7393/VTK,jmerkow/VTK,SimVascular/VTK,sgh/vtk,naucoin/VTKSlicerWidgets,daviddoria/PointGraphsPhase1,arnaudgelas/VTK,naucoin/VTKSlicerWidgets,SimVascular/VTK,ashray/VTK-EVM,cjh1/VTK,johnkit/vtk-dev,sgh/vtk,spthaolt/VTK,jmerkow/VTK,aashish24/VTK-old,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,daviddoria/PointGraphsPhase1,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,gram526/VTK,msmolens/VTK,arnaudgelas/VTK,SimVascular/VTK,hendradarwin/VTK,msmolens/VTK,hendradarwin/VTK,demarle/VTK,aashish24/VTK-old,naucoin/VTKSlicerWidgets,johnkit/vtk-dev