Voxygen is a generator plugin.
You can select from the main plugins menu and add it to your scene.
Insert one or more polygon objects, under the voxygen object. Voxygen then converts the surface of your objects into voxels.
You can replace the standard Voxel cubes , with any polygon object you like, via the geometry link.
It is possible to use both Mograph effectors and Standard modifiers to change the position,rotation and scale of the resulting voxels.
There is a render multiplier, which you can use to increase the voxel count at render time only, making working in the editor smoother and faster, but giving you super high voxel counts at render time.