Multimedia Authoring: Scripting, Slide Show, Hierarchical, Iconic/Flow-control, Slides of Multimedia Applications

Download Multimedia Authoring: Scripting, Slide Show, Hierarchical, Iconic/Flow-control and more Slides Multimedia Applications in PDF only on Docsity!

Multimedia Authoring and Tools

Multimedia Authoring

• Multimedia authoring : creation of multimedia

productions, sometimes called “movies” or

“presentations”.

• In this lecture, we take a look at:
  • Multimedia Authoring Metaphors
  • Multimedia Production
  • Multimedia Presentation
  • Automatic Authoring

Scripting Language Metaphor

Multimedia Authoring Metaphors

• Slide Show Metaphor : A linear presentation by default, although tools exist to perform jumps in slide shows - Example: PowerPoint
• Hierarchical Metaphor : User-controllable elements are organized into a tree structure - often used in menu-driven applications.
• Iconic/Flow-control Metaphor : Graphical icons are available in a toolbox, and authoring proceeds by creating a flowchart with icons attached

Iconic/flow-control Metaphor

Frames Metaphor

• Frames Metaphor : Like Iconic/Flow-control Metaphor; however links between icons are more conceptual, rather than representing the actual flow of the program

Cast/Score/Scripting Metaphor

• Time is shown horizontally; like a spreadsheet: rows, or tracks , represent instantiations of characters in a multimedia production.
• Multimedia elements are drawn from a cast of characters, and scripts are basically event- procedures or procedures that are triggered by timer events.
• Director, by Macromedia, is the chief example of this metaphor. Director uses the Lingo scripting language, an object-oriented event-driven language.

Developing Multimedia Presentations

• Phases for MM presentations development:
  • Storyboarding
  • Flowcharting
  • Prototyping
  • User testing
  • Media Production
  • Programming
  • Debugging
  • Distribution

Elements of Multimedia Presentations

• Fonts : For effective visual communication in a presentation, it is best to use large fonts (i.e., 18 to 36 points), and no more than 6 to 8 lines per screen.

Elements of Multimedia Presentations

• Fonts : For effective visual

communication in a presentation, it is best to use large fonts (i.e., 18 to 36 points), and no more than 6 to 8 lines per screen.

• Sans-serif fonts fonts work better than

serif fonts.

Sprite Animation

Sprite Animation

• We can overlay the sprite on a colored background B , as in Fig. 2.8 (a) by first ANDing B and M , and then ORing the result with S , with final result as in Fig. 2.8 (e).

Video Transitions

• Wipe : a replacement of the pixels in a region

of the viewport with those from another

video. Wipes can be left-to-right, right-to-left,

vertical, horizontal, swept out like the hands

of a clock, etc.

Video Transitions

• Example wipe