Make sure most voxels are rendered for timing test
Make sure most voxels are rendered for timing test

Change-Id: Ic0572dc4decd0b386ee76aaa531da7ba80c561b4

sumedhasingla/VTK,SimVascular/VTK,keithroe/vtkoptix,mspark93/VTK,gram526/VTK,keithroe/vtkoptix,candy7393/VTK,sankhesh/VTK,msmolens/VTK,candy7393/VTK,mspark93/VTK,jmerkow/VTK,keithroe/vtkoptix,candy7393/VTK,gram526/VTK,sumedhasingla/VTK,sumedhasingla/VTK,SimVascular/VTK,demarle/VTK,SimVascular/VTK,SimVascular/VTK,demarle/VTK,msmolens/VTK,sumedhasingla/VTK,candy7393/VTK,msmolens/VTK,sumedhasingla/VTK,sankhesh/VTK,SimVascular/VTK,jmerkow/VTK,sankhesh/VTK,sumedhasingla/VTK,SimVascular/VTK,mspark93/VTK,jmerkow/VTK,SimVascular/VTK,msmolens/VTK,keithroe/vtkoptix,keithroe/vtkoptix,demarle/VTK,mspark93/VTK,candy7393/VTK,sankhesh/VTK,sankhesh/VTK,keithroe/vtkoptix,jmerkow/VTK,gram526/VTK,msmolens/VTK,gram526/VTK,msmolens/VTK,SimVascular/VTK,keithroe/vtkoptix,demarle/VTK,demarle/VTK,jmerkow/VTK,msmolens/VTK,jmerkow/VTK,demarle/VTK,sumedhasingla/VTK,gram526/VTK,msmolens/VTK,sankhesh/VTK,jmerkow/VTK,gram526/VTK,sumedhasingla/VTK,candy7393/VTK,keithroe/vtkoptix,jmerkow/VTK,gram526/VTK,sankhesh/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,mspark93/VTK,mspark93/VTK,sankhesh/VTK,mspark93/VTK,gram526/VTK,demarle/VTK,candy7393/VTK