The Face Fracture operator allows you to fracture particle mesh faces.
Each fracture mesh will be turned into a new particle.
Triangles: triangles will be treated as single faces.
Polygons: polygons (adjacent triangles that share a hidden edge) will be treated as single faces.
Material IDs: faces will be split up by shared adjacent material IDs.
Smoothing Groups: faces will be split up by shared adjacent smoothing groups.
Attach elements with matching values: when enabled, non-contiguous groups of faces with the same material ID value will be attached together. By default they are not attached, so non-contiguous groups of faces with the same material ID will be fractured into separate particles.
Min/Max: the target min/max combined face area per fracture group.