BUG: fix for blank pixels when ray direction lines up with axis - hopefully also a fix for the floating point exception since the problem leading to the blank pixels was a potential divide by zero
BUG: fix for blank pixels when ray direction lines up with axis - hopefully also a fix for the floating point exception since the problem leading to the blank pixels was a potential divide by zero

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