BulletMass Modeling

1
Bullet-Mass Modeling

• Scott Barber
• Computer Science Intern

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Jaleco Entertainment(Game Company)

• Previously VR-1
• Located In Boulder
• Extensive Range of Games
• NightCaster
• PulseRacer
• Extensive Range of Platforms
• Playstation
• XBOX
• PC

3
Project Introduction

• The Problem
• A Proposed Look
• The Matlab Model
• Advantages
• Disadvantages
• Results
• Future Enhancements
• Conclusion

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The ProblemRealistic Games

• Increasing Reality of Games
• Current Realism of Games
• First-Person Shooters

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Shooting an Object

• Current Way of Handling
• Predefined Objects
• Some Random Elements
• Need for Additional Realism
• Fully Dynamic Shooting

6
The Matlab Model

• Set of NN Cells
• Interaction of Spring Forces
• Springs Repel if Close
• Springs Attract if Far Away
• Each Cell has a Velocity and Position
• Breaking of Springs between Cells
• Defined Maximum Spring Length

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Model Advantages

• Fully Dynamic
• Object Breaks Differently, Based Upon Inputs
• Maximum Expandability

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Model Disadvantages

• At This Point, Must be NN
• Additional complexity for non square matricies
• Not typical of game models
• Need Many Points to Accurately Simulate
• Most current game Models
• Have minimized vertex and polygon counts.
• Only have Exterior Points. Wasteful
• Additional Computational Speed
• Done In Matlab. Not C

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Model Results

• Chaos
• Very Hard to Define Parameters Going In
• Unstable
• Moving the entry point vastly affects how the
  model reacts
• Model Realism vs Unrealism
• Material Density
• Stress Points

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Model Results

• Demonstration of Project
• Does not match Real World
• Would not be effective for in-game computations
• Well. Not yet at least
• Would have to be ported to a game language
• Helpful, currently, for determining pre-defined
  break patterns

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Future Enhancements

• Simulating Points, not specifically representing
  them
• Addition of Springs possibly make it more
  realistic
• Make Each Spring Different, not Uniform

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Conclusion

• May have helpful visualization techniques
• A future version, might be game usuable
• Great Expandability
• Other Applications