Character Interactions

  • Due Oct 13, 2016 at 8:59am
  • Points 2
  • Questions 2
  • Available until Oct 13, 2016 at 8:59am
  • Time Limit None
  • Allowed Attempts Unlimited


Watch the following video tutorial on how the Principle of Action / Reaction applies to character interactions, such as pushing and fighting.

[PDF of Slides]


• Jumping and walking rely on reaction forces produced by the action forces of the character.
• When a character pushes an object forward they exert at least as much force with their feet as with their hands (if not then character slips).
• Realistic fight scenes have believable reaction forces matching the action forces.
• Using wires to pull a character gives an action force without an on-screen reaction.
• Action-Reaction can be used for Phys-Dev.
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