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Presented By: Aleissia Laidacker Nicolas Barbeau.

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1 Presented By: Aleissia Laidacker Nicolas Barbeau

2 Living Crowds AI & Animation in : Assassin’s Creed: Brotherhood

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

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 AC1 AC2ACB Crowd Flow TechnologyMemorable MomentsReal World Ambiance CROWD PROGRESSION

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

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 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. Assassin’s Creed Brotherhood CROWD LIFE COORDINATOR

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

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

21 BREAKING THE CYCLE Assassin’s Creed Brotherhood Step 1Step 2Step 1Step 2Step 1Step … Step 1Step 2Step 3Step 4Step 5Step 6Step 1Step 2Step 3Step …

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

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

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

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

26 Assassin’s Creed Brotherhood RECAP What a Challenge!

27 Thank You! Q&A Assassin’s Creed Brotherhood Q&A

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