GAME TOOLS | VOXELMESH
The Voxel Mesh SOP is a shortcut for the common VDB from Polygons > Convert VDB workflow. It also has some extra features like projecting to the original mesh and dilating/eroding the volume.
Houdini 16.5 Update
Added Sharpen Features to the Voxel Mesh SOP, Which allows users to get better hard edge models.