Build warning in vtkSurfaceLICPainter on Windows
D:\buildbot\894462a7\source\VTK\Rendering\LIC\vtkSurfaceLICPainter.cxx(786) : warning C4267: 'initializing' : conversion from 'size_t' to 'unsigned long', possible loss of data
https://open.cdash.org/viewBuildError.php?type=1&buildid=4509766