Introduction to MultimediaIntroduction to Multimedia

Faculty: Mehak Vaswani DMSR G.S College of Commerce & Economics

Chapter Outline

Components of MultiMediaIntroduction Graphics , Audio & Animation Using MultiMedia at Home,

Business , Education And Entertainment

Applications in Games & Animation Industry

Multimedia

Multimedia is media and content that uses a combination of different content forms.

Multimedia is usually recorded and played, displayed or accessed by information content processing devices, such as computerized and electronic devices, but can also be part of a live performance.

MultiMedia: Introduction

• MultimediaMultimedia also describes also describes electronic media devices used to store and experience multimedia content.

• Multimedia includes a combination Multimedia includes a combination of of text, audio, still images, animation, video, and interactivity content forms

MultiMedia : IntroductionMultiMedia : Introduction

• Multimedia is a computer-based interactive communications process that incorporates text, graphics, sound, animation, and video

• Multimedia also describes electronic media devices used to store and experience multimedia content.

• Interactive• Key feature of multimedia• User determines what content is

delivered, when it is delivered and how

Multimedia

When the end user ie the viewer of multimedia project control what and when the elements are delivered it is called as Interactive MultimediaWhen they provide a structure of linked element through which the user can navigate , interactive multimedia becomes hypermedia

Multimedia Advantages• Engrossing –

deep involvement• Multi-sensory• Creates

knowledge connections

• Individualized

• Entertainment

• Education

• Corporate communications

• Reference

MultiMedia Components

Sound Still Images

Interactive Animation Video Footage

Computer Graphics

• There are basically two types of computer graphic, bitmapped and vector/structured.

• Bitmapped graphics are images that are mapped to the monitor or screen. The screen is made up of tiny dots called pixels. These dots can display various colours depending on the type of computer hardware and software you have.

Computer Graphics

• Using shades of red, green and blue (RGB) an image can be displayed on the screen by mapping different colours to the screen in different sequences.

• Vector graphics use objects created from mathematical formulas to represent things like lines, curves, fills, line thickness, etc. to create the image.

Computer Graphics

• Some of the structured formats are .ai, .cmx, .eps, .wpg, .cgm and a host of others.

• Bitmapped graphics can be created and modified in a paint program and vector or structured graphics can be created and modified in a draw program.

• The main tools in a graphics program allow you to select a section of a picture, erase part of a picture, fill a defined area, select a colour, magnify a section, draw free hand, draw with various tools such as a straight line; a curved line; a rectangle; an oval; and a polygon. You can also modify a drawing by changing the size, colour, placement, and, depending on the program, hundreds of other modification.

Graphic Images, Sounds & Animation

• Graphics

• Computer graphics are anything that can be displayed on the screen except the text and sometimes even text falls into the graphics category if it is save in a graphics format.

Corel PhotoPaint  

Corel Draw

Macromedia Fireworka

Adobe

Illustrator

Adobe Photoshop

L View

U Lead

Computer Graphics

• Each type of graphic has it's own advantages and disadvantages.

• Older versions of HTML were only able to recognizes bitmapped graphics so most graphics created for the Internet, using standard HTML, are created or converted to a bitmap format.

• The newest version of HTML or XHTML is able to display vector graphics but not all browsers are able to display these graphics.

Graphic Images

• Within each of the two main types there are dozens of different formats.

• Graphics formats are distinguished by their filename extensions.

• The three main bitmapped format graphics used on the Internet are .gif, .jpeg (.jpg) and .png. There are many others including .bmp, .tiff (.tif), .pcx, .ppm, .tga and a host of others.

Sound

• Other formats are Audio Visual Interleave's .avi, the before mentioned mpg, Microsoft's Media Player .wmv, Apple's Quick Time .qt, .aif(*) & .mov, RealNetwork's RealVideo .rm(*), Macromedia's Flash creates Shockwave .swf, and JavaScript as well as various others.

Sound• Moving Picture Experts Group (MPEG)

or .mpg is multimedia format that is an attempt to create a standardization among the various formats available. MPEG has made it possible to place audio content on the website without having it sound tiny and hollow or taking an extreme amount of time to download. There are many different formats for sound including; Microsoft's .wav, Sun's .au & .snd, RealNetwork's RealAudio , .ra(*), and various others.

Sound • You may have heard .mid files play when visiting

various websites. Musical Instruments Digital Interface (MIDI) files are basically sound tracks which use a collection of sounds contained in the .mid file to play a tune.

• To create a sound file you will need an audio program. You can then record with a microphone or off of a prerecorded medium. Your computer will need to have a sound card properly installed and a speaker to hear your recording. You can save the sound file to play back later.

Using MultiMedia at Business• Exciting presentations are used to grab

and keep attention in advertising. Business to business, and interoffice communications are often developed by creative services firms for advanced multimedia presentations beyond simple slide shows to sell ideas or liven-up training.

• Commercial multimedia developers may be hired to design for governmental services and nonprofit services applications as well.

Using MutiMedia in Education

• In Education, multimedia is used to produce computer-based training courses (popularly called CBTs) and reference books like encyclopedia

• A CBT lets the user go through a series of presentations, text about a particular topic, and associated illustrations in various information formats.

• Edutainment is an informal term used to describe combining education with entertainment, especially multimedia entertainment

• Media convergence

Using MutiMedia in Entertainment

• In addition, multimedia is heavily used in the entertainment industry, especially to develop special effects in movies and animations

• Multimedia games are a popular pastime and are software programs available either as CD-ROMs or online. Some video games also use multimedia features.

• Multimedia applications that allow users to actively participate instead of just sitting by as passive recipients of information are called Interactive Multimedia

Animation

• With the advent of faster computers comes animation.

• A GIF animation is a series of separate images or frames that display one after the other to give the impression of movement.

Animation-Real World Mimic

• 1sec=24 frames • Pipeline –Pre Production• IDEA • Story • Script • 2D Character Design• Story Board • Animatics

Production

3D Modelling (on a Gray Scale)

Texturing

Rigging (Organising)

Rendering

Lighting

Post Production

Compositing

Editing