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Image 1: The Physics panel for particles.

The movement of particles may be controlled in a multitude of ways:

  • With particles physics: there are four different systems:
    • None: It doesn’t give the particles any motion, which makes them belong to no physics system.
    • Newtonian: Movement according to physical laws.
    • Keyed: Dynamic or static particles where the (animated) targets are other particle systems.
    • Boids: Particles with limited artificial intelligence, including behavior and rules programming, ideal for flocks of birds or schools of fishes, or predators vs preys simulations.
  • By softbody animation (only for Hair particle systems).
  • By forcefields and along curves.
  • By lattices.

Here we will discuss only the particle physics in the narrower sense, i.e. the settings in the Physics panel.

Physics: None

At first a Physics type that makes the particles do nothing could seem a bit strange, but it can be very useful at times. None physics make the particles stick to their emitter their whole life time. The initial velocities here are for example used to give a velocity to particles that are effected (or affected?) by a harmonic effector with this physics type when the effect of the effector ends.

Moreover, it can be very convenient to have particles at disposal (whose both Unborn and Died are visible on render) to groom vegetation and/or ecosystems using Object, Group or Billboard types of visualization.




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