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DOVE. Shuen-Huei Guan, Sheng-Yao Cho, Yu-Te Shen, Ping-Chun Kuo Final Project of Virtual Reality Computer Science and Information Engineering National Taiwan University June, 2003. Dove?!. Dove is . Dove is Our Virtual Experience. Dove is Dove Simulation. Introduction.

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slide1

DOVE

Shuen-Huei Guan, Sheng-Yao Cho,

Yu-Te Shen, Ping-Chun Kuo

Final Project of Virtual Reality

Computer Science and Information Engineering

National Taiwan University

June, 2003

slide2
Dove?!
  • Dove is .
  • Dove is Our Virtual Experience.
  • Dove is Dove Simulation.
introduction
Introduction
  • A simulation of pigeons on the square.
    • Flying in the sky.
    • Looking for food.
  • Feed interactively by a tracker.
  • Display by Vision Station.
how to make dove
How to make Dove
  • Understand more about pigeons.
  • Analyze behaviors of pigeons.
  • Find the model to do simulation.
  • Do programming.
pigeons behaviors1
Pigeons Behaviors

Eating

Know where food is

Don’t know where food is

Approach to people/doves

Approach to food

當跟屁蟲

idle

cleaning

Grouping behavior

Lovable dove

Slowly wandering

Feather-cleaning

To leader

pigeons behaviors cont
Pigeons Behaviors cont.

Approach

In air

On the ground

I am in the air

I am on the ground

I am in the air

I am on the ground

Fly + land

fly

Takeoff + fly

near

far

middle

Takeoff + fly + land

hungry

Not hungry

Fast approach

Slow approach

Not hungry

hungry

Fast approach

Takeoff+ fly + land

related works
Related Works
  • Animating bird flight using aerodynamics.
  • Realistic Modeling of Bird Animations.
  • Stanley and Stella in: Breaking the Ice.
flocking
Flocking
  • Flocking simulates movements of autonomous characters.

Character {

mass [scalar]

position [vector]

orientation [N basis vectors]

velocity [vector]

max speed [scalar]

max force [scalar]

}

flocking cont
Flocking cont.
  • The behavior of an autonomous character can be better understood by dividing it into several layers.

Action Selection: strategy, goals, planning

Steering: path determination

Locomotion: animation, articulation

flocking of pigeons
Flocking of Pigeons
  • Action Selection (strategy, goal, planning)
    • (behavior/desire :
    • 1.root for food 2.wander 3.defense or offense)
  • Steering (path determination)
    • (individual dove’s movement : following, avoiding…)
  • Locomotion (animation, articulation)
    • (animation : walking, flying…)
demo program boids
Demo Program: Boids
  • Separation
  • Alignment
  • Cohesion
what has done
What has done
  • Reference: flocking, pigeon’s animation.
  • Movie:
    • DV in Chiang Kai-Shek Memorial Hall.
    • Discovery & National Geometry in NTU Lib.
  • Pigeon 3D model & animation.
  • Pigeons’ behaviors.
  • Demo program.
what has not done
What has not done
  • Animation set for pigeons.
  • Vision station & tracker.
  • We need cute children involved.
  • Sound & graphical effects.
members
Members
  • Shuen-Huei Guan(官順暉)
  • Sheng-Yao Cho(卓聖堯)
  • Yu-Te Shen(沈育德)
  • Ping-Chun Kuo(郭秉鈞)

Special Thanks

  • Wei-Chih Liao(廖偉智)
reference
Reference
  • Jia-Chi Wu and Zoran Popvic, Realistic Modeling of Bird Animations, SIGGRAPH 2003.
  • Balajee Ramakrishnananda and Kok Cheong Wong, Animating bird flight using aerodynamics, The Visual Computer, 1999.
  • Celine Loscos, Franco Tecchia, and Yiorgos Chrysanthou, Real-Time Shadows for Animated Crowds in Virtual Cities, ACM Symposium on Virtual Reality Software & Technology, 2001.
  • Craig Reynolds, http://www.red3d.com.
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