Compiz
Some Demonstration Scenes
What is Demonstration Scene?
 Non-interactive presentation with video and
audio run in real-time.
 Demonstration of programming skill, arts, and,
music editing.
Demonstration Scene
 Usually, CPU/GPU power and storage are
essential to generate beautiful real-time scene.
(not video, I mean…)
 For example, the computer games you play…
Before 1995, most games can be easily stored into a
CD-ROM. (They are just tens of MB)
Some games nowadays cannot be stored simply with a
DVD-ROM.
 A criticized game “Grand Theft Auto 4” requires a blu-ray
disc to be effectively stored. Hence, it took some efforts to
make it playable on XBOX 360 since it still use DVD!
Demonstration Scene
Some demo scenes have very tiny size
(several ~ tens of kB).
3D objects, visual effects, text, and music
are all combined in demo scenes.
Some demo scenes requires hardware
acceleration.
Some Other Variation…
 A 96 kB first-person shooting
game: .kkrieger
Program Skill
 Coding for audio. Consider a CD-quality music
compressed to several kB.
 Godlike skill of programming and algorithm.
 Concept of art also plays an important role.
Conclusion
A tiny executive file may contain great
amount of contents.
Think of your homework. Almost all of
them have larger size.
Similarly, please don’t open unknown file
from the Internet even if their size is very
tiny.