Particle system

• Particle : element at a given position + extra parameters (mass, life time, etc)

• Called particles systems in opposition to
• • - Rigid bodies - Solid objects with static shape
  • - Deformable bodies - Continuum material that can deforms

• Pro
• • (+) Lightweight representation (both CPU+memory)
  • (+) Generic flexible model (spatial deformation, no connectivity, etc)
  • \(\Rightarrow\) highly used in CG

• Cons
• • (-) Simple model from physics point of view