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Presented By: Aleissia Laidacker Nicolas Barbeau

Presented By: Aleissia Laidacker Nicolas Barbeau. Living Crowds AI & Animation in : Assassin’s Creed: Brotherhood. Assassin’s Creed Brotherhood. PIPELINE - AI. AI TEAM. Core AI. Missions. Behavior. Fight. Crowd. Assassin’s Creed Brotherhood. PIPELINE – CORE AI TEAM.

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Presented By: Aleissia Laidacker Nicolas Barbeau

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  1. Presented By: AleissiaLaidacker Nicolas Barbeau

  2. Living CrowdsAI & Animation in:Assassin’s Creed: Brotherhood

  3. Assassin’s Creed Brotherhood PIPELINE - AI AI TEAM Core AI Missions Behavior Fight Crowd

  4. Assassin’s Creed Brotherhood PIPELINE – CORE AI TEAM • Core Mechanics • Spawning • Save System, Replay System

  5. Assassin’s Creed Brotherhood PIPELINE – MISSIONS TEAM • Mission Design Tech • Exotic Gameplay

  6. Assassin’s Creed Brotherhood PIPELINE – BEHAVIOR TEAM • Physical State and Actions • Main Character – “3C”: (Character, Camera, Controls) • Animation Gameplay

  7. Assassin’s Creed Brotherhood PIPELINE – FIGHT TEAM • Fight Behavior • Fight AI • Fight Animators

  8. Assassin’s Creed Brotherhood PIPELINE – CROWD TEAM • NPC AI • Gameplay Systems • Navigation

  9. Assassin’s Creed Brotherhood CROWD PROGRESSION

  10. Assassin’s Creed Brotherhood THE CHALLENGE • More Missions and Reactions • + • Day and Night Cycle • + • Rome Upgrade System • = 3X more Crowd Life content than AC2. In 10 Months Time!

  11. Assassin’s Creed Brotherhood STARTING POINT • Behaviors = Programmer Centric: Problem for simple needs • Programmer vs Animator Control • Need new tools! • How to create a simple behavior?

  12. Assassin’s Creed Brotherhood DATA DRIVEN BEHAVIORS

  13. Assassin’s Creed Brotherhood CUSTOM ACTIONS What is it? • Body Part Transferring • Look-at • Transitions • Loops • Variety • Weights

  14. Assassin’s Creed Brotherhood CUSTOM ACTIONS Orientation Settings • Idle: Turn to Target • Move: Oriented Move

  15. Assassin’s Creed Brotherhood CUSTOM ACTIONS Blended Animations

  16. Assassin’s Creed Brotherhood CUSTOM ACTIONS Random Look-At • Systemic • Moods

  17. Assassin’s Creed Brotherhood OASIS Reactions Using Oasis and custom actions for sound and NPC reactions. • Mix and match thousands of speech lines with generic or specific animations. • Fast creation based on a template system. • Managing the Data

  18. Assassin’s Creed Brotherhood CROWD LIFE COORDINATOR What is it? • Gameplay Object • No Scripted Scenes for each Character • Drag and Drop – Static Object • It makes creating a unique ambiance fast and easy.

  19. Assassin’s Creed Brotherhood CROWD LIFE COORDINATOR What it does • Plays Custom Actions • Prop Spawning information • Loads animation data dynamically • Manages character interruptions and reactivity.

  20. Assassin’s Creed Brotherhood BREAKING THE CYCLE • Break the robotic feel • Making walk uneven and asymmetrical • Making characters feel more human

  21. Assassin’s Creed Brotherhood BREAKING THE CYCLE

  22. Assassin’s Creed Brotherhood NPCG: How to make a character with a wait and a walk animation How it was done before… GENERIC WAIT TRANSITION a WALK a UNIQUE WALK WAIT TRANSITION b WALK b

  23. Assassin’s Creed Brotherhood NPCG: How to make a character with a wait and a walk animation We call it… Transblend! GENERIC WAIT TRANSITION WALK a UNIQUE WALK WALK b WALK b

  24. Assassin’s Creed Brotherhood NPCG: How to make a character with a wait and a walk animation Fame

  25. Assassin’s Creed Brotherhood ANIMATION BUDGET Doing More with Less • NPCG • Reuse Animations • Dividing Rome into distinct areas • Loading Animations dynamically • Memory Limitations!

  26. Assassin’s Creed Brotherhood What a Challenge! RECAP

  27. Assassin’s Creed Brotherhood Thank You!Q&A Q&A aleissia.laidacker@ubisoft.com nicolas.barbeau@ubisoft.com

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