– This parameter is common to Newtonian, Keyed and Boids sections.
– Mass: simply the particle mass.
– In this example a wind force field (the grey sphere) is influencing the path of the falling particles. The bigger the (inertial) mass the less the deflection. If someone is asking himself why I did not use two bodies of different mass falling remember: bodies of different masses fall at the same rate in absence of other forces!