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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 is . Dove is Our Virtual Experience. Dove is Dove Simulation. Introduction.

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DOVE

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  1. 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

  2. Dove?! • Dove is . • Dove is Our Virtual Experience. • Dove is Dove Simulation.

  3. Introduction • A simulation of pigeons on the square. • Flying in the sky. • Looking for food. • Feed interactively by a tracker. • Display by Vision Station.

  4. How to make Dove • Understand more about pigeons. • Analyze behaviors of pigeons. • Find the model to do simulation. • Do programming.

  5. DV clip

  6. Pigeons Behaviors

  7. 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

  8. 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

  9. Related Works • Animating bird flight using aerodynamics. • Realistic Modeling of Bird Animations. • Stanley and Stella in: Breaking the Ice.

  10. Flocking • Flocking simulates movements of autonomous characters. Character { mass [scalar] position [vector] orientation [N basis vectors] velocity [vector] max speed [scalar] max force [scalar] }

  11. 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

  12. 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…)

  13. Demo Program: Boids • Separation • Alignment • Cohesion

  14. 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.

  15. What has not done • Animation set for pigeons. • Vision station & tracker. • We need cute children involved. • Sound & graphical effects.

  16. 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）

  17. 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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