eEducation, eBusiness & eArts

My VRML 2.0 Practice

Coded in 1999-2002; Based on The Bible of VRML: VRML 2.0: sourcebook by A. L. Ames et al

Note: You can also find many useful online example in the sorcebook by clicking here

Contents

1. Atlas II A (a static model, use VRML browser tools to play with)
2. Physics in Virtual Reality
   • Cosmology: Black Hole, Worm Hole and Multiverse (static models and animations)
   • An Circling Airplane (animation with sound effect)
3. Two Airplanes Engaged In Dogfight (animation with sound effect)
4. Mouse-Controlled Dogfight of One Plane
5. Mouse-Controlled Dogfight of Two Planes
6. A Wiggling Snake
7. Three vessels acting as three buttons

I. Stable Models (use VRML browser tools to play with)

• Missile: Atlas II A
  

  Atlas IIA

Cosmology: Black Hole, Wormhole and Multierse (Physics/Gravitation) According to Eistein's general relativity, a gravitational filed is just a curved 4D space-time caused by the existing matter. A black hole is a very dense object with such a deep twisted space that is looks like a funnel in a 3D space-time. Two black holes may form a Wormhole. I always wonder what if the two black holes belong to different Universes (a naive thought of Multiverse)? Here are two static models for you to play with In our animated model of the Oscillatory Universe, there is a standing wave, whose wave length is increasing (red-shift) when the Universe is expanding, decreasing (blue-shift) if the Universe is collapsing. Because we do see the red-shift, our Universe currently is expanding. Note thst the size of black holes (and galaxies) does not change with the universe. Because this model assumes our unverse is closed and periodically expands and shrinks, it is different from the Cyclic Model. The Oscillatory Universe seems to be invalidated, because recent data show that our universe will keep expanding to a deadly cold end (Big Freeze), although scientists are still looking for the source of dark matter and dark energy...
A Black Hole and a Falling Star (animation)	A Wormhole (static model)	An Oscillatory Universe: its expanding and collapsing (animation)

Three Universes, Connected By Wormholes... (static model)

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An Circling Airplane (Physics/Kinematics; Animation with sound effect)


A circling airplane

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III. Others:

1. Two Airplanes Engaged In Dogfight (animation with sound effect)
   

   Two Airplanes Engaged In Dogfight

2. Mouse-Controlled Dogfight of Jet-fighters (with both rotation and translation)
   Mouse-over: rotating the plane; Mouse-click-drag: translating the plane
   
   • Mouse-Controlled Dogfight of One Plane
     Mouse-Controlled Dogfight of One Plane

   • Mouse-Controlled Dogfight of Two Planes
     Mouse-Controlled Dogfight of Two Planes

3. A Wiggling Snake
   A Wiggling Snake

4. Three vessels acting as three buttons
   

   Three vessels acting as three buttons, controlling background color and sound

Enjoy VRML!