Use material mask as value for debugging purposes
Use material mask as value for debugging purposes

Change-Id: Iaa924f56b406fb0156b1f7d79d3a5b794e032282

mspark93/VTK,sumedhasingla/VTK,demarle/VTK,jmerkow/VTK,collects/VTK,mspark93/VTK,demarle/VTK,sumedhasingla/VTK,sankhesh/VTK,biddisco/VTK,hendradarwin/VTK,jmerkow/VTK,gram526/VTK,demarle/VTK,keithroe/vtkoptix,demarle/VTK,candy7393/VTK,msmolens/VTK,biddisco/VTK,SimVascular/VTK,msmolens/VTK,hendradarwin/VTK,ashray/VTK-EVM,hendradarwin/VTK,jmerkow/VTK,jmerkow/VTK,mspark93/VTK,demarle/VTK,biddisco/VTK,SimVascular/VTK,ashray/VTK-EVM,mspark93/VTK,candy7393/VTK,sankhesh/VTK,msmolens/VTK,keithroe/vtkoptix,candy7393/VTK,johnkit/vtk-dev,candy7393/VTK,ashray/VTK-EVM,hendradarwin/VTK,sankhesh/VTK,ashray/VTK-EVM,biddisco/VTK,jmerkow/VTK,jmerkow/VTK,sankhesh/VTK,sumedhasingla/VTK,hendradarwin/VTK,mspark93/VTK,SimVascular/VTK,berendkleinhaneveld/VTK,msmolens/VTK,SimVascular/VTK,sumedhasingla/VTK,johnkit/vtk-dev,gram526/VTK,gram526/VTK,berendkleinhaneveld/VTK,collects/VTK,biddisco/VTK,SimVascular/VTK,demarle/VTK,collects/VTK,demarle/VTK,berendkleinhaneveld/VTK,collects/VTK,sumedhasingla/VTK,gram526/VTK,ashray/VTK-EVM,johnkit/vtk-dev,johnkit/vtk-dev,jmerkow/VTK,sankhesh/VTK,candy7393/VTK,candy7393/VTK,mspark93/VTK,biddisco/VTK,SimVascular/VTK,gram526/VTK,sankhesh/VTK,sumedhasingla/VTK,gram526/VTK,keithroe/vtkoptix,sumedhasingla/VTK,johnkit/vtk-dev,ashray/VTK-EVM,jmerkow/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,sankhesh/VTK,mspark93/VTK,collects/VTK,demarle/VTK,SimVascular/VTK,ashray/VTK-EVM,johnkit/vtk-dev,berendkleinhaneveld/VTK,mspark93/VTK,msmolens/VTK,candy7393/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,johnkit/vtk-dev,msmolens/VTK,keithroe/vtkoptix,SimVascular/VTK,gram526/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,biddisco/VTK,ashray/VTK-EVM,msmolens/VTK,candy7393/VTK,keithroe/vtkoptix,hendradarwin/VTK,collects/VTK,msmolens/VTK,sumedhasingla/VTK,hendradarwin/VTK,gram526/VTK,sankhesh/VTK