Volume data can be visualized drawing an isosurface for a given value inside the volume. The initial inputs for the volume dialog are the dimensions of the data.
Parameters of the surface, such are the relaxation (rounding of the Marching Cubes algorithm), and the value of the surface are set in the "volume" tab in the volume dialog.
For a given data set, different choosing of the isosurface value may produce varying results in the visualization. Future implementations will permit the display of multiple isosurfaces with the option of transparency between them in order to appreciate the degree of likeness or differences between values of the isosurface.