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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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Dove

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?!

  • 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.


Dv clip

DV clip


Pigeons behaviors

Pigeons Behaviors


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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