In Advanced workflow mode MLP can work in three different fill modes. Separate Filling, Vertical Duplicate, and Full Filling.
In the “Separate Filling” mode, the volume will be divided into sub-volumes. This is a fully automatic mode that takes into account contrast areas (shadows, color changes, changes in light intensity, unlit areas, range and angles of light sources).
In the "Vertical Duplication" mode, the probes will be located along the geometry and then duplicated to the specified height with the specified step.
In the "Full Filling" mode, the probes will be located evenly throughout the volume. All probes inside the geometry will be automatically deleted.