Chapter 1_3d Comp Graphic

8/12/2019 Chapter 1_3d Comp Graphic

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3 D C O M P U T E R G R A P H I C S

BTMA 4023- Chapter 1: 3D Computer Graphics

Chapter 1:1

Lecturer: Hailrudin Jaafar


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At the end of this topic, you will be able to:

Review 3D world and the flow of 3D development

Define the principal concepts involved in 3Dgraphics

IMD2214 - Chapter 1: 3D Computer Graphics

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Introduction


Animation is an art form created and cultivated overthe last century.

Through animation, new worlds can be imagined.

This modern art form evokes emotion through themovement of a sequence of drawings, paintings,photographs or rendered images.

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Introduction


Digital characters and sets can now be built andanimated, then presented in different media formatssuch as film, video and interactive games.

Characters and visual effects can even be seamlesslyintegrated into live-action footage.

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3D Computer Animation


The use of 3D graphic tools is now an important partof many television, film and multimedia projects.

The way objects appear in perspective, the way a

surface bends and twists, or the way a lightilluminates a spaceall of these complex 3D effectscan now be recreated on the computer.

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3D Computer Animation


Broadcast

Animated Short Films

Feature Films

Visual Effects Interactive Video Games

Visualization and Web

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Broadcast


3D computer graphics has had to animate a flyinglogo as a new and dynamic way of getting themessage across.

Flying logos are now integrated into more complete3D environments where a product is advertised or acorporate message introduced.

Character animation is also used more to bring

objects to life and help sell the message.

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Animated Short Films


This animated short films were able to tell acompelling story about the influences of our societyon the average person.

Short films provide a fertile ground forexperimentation that help drive innovation in thecomputer graphics industry.

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Feature Films


Before this, many films have integrated 3D intoexisting live-action scenes.

Pixars Toy Story became the firstfeature-lengthanimationthat used 3D exclusively for characters

and sets. ImageworksStuart Little took this one step

further and made a digital mouse the star of a live-action movie.

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Visual Effects


Film sets can be partially built andthen extended with detailed 3Ddigital sets.

smoke, fire and exploding objects

can now be simulated within thesafety of a computer screen.

The best effects make it impossible tofind the line between reality and

where computer graphics are used.

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Interactive Video Games


Video games have developed from black and whitepixels to real-time virtual environments built with3D characters and sets.

Game artwork is becoming more sophisticated withcomplex 3D models, texture maps, lighting and evendynamics.

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Visualization and Web


Digital content creation tools are used in a number offields including fine arts, architecture,design,education and scientific research.

With advances in the webs ability to present graphic

and 3D information, visualization on the internet isemerging as an important tool for many companies.

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The Animation Pipeline


The animation pipeline can be summarized in 7stages: modeling;

characters;

animation; materials and textures;

lights and cameras;

effects;

Rendering and compositing.

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1. Modeling


This is the stage where you build geometry torepresent objects and characters.

This geometry describes

the position and shape of

your models and can be

manipulated in the 3D

workspace.

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2. Characters


Characters are models that use special controls suchas skeleton joints and inverse kinematics foranimation.

These controls make it possible to create the complexmechanics required by characters.

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3. Animation


Once a model has been setup for animation, you canbegin to animate it.

By changing its position or shape over time, you

bring it to life. The timing can then be tweaked to create very

specific motion.

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4. Materials and Textures


In order for geometry to be rendered, it must begiven material attributes that define how it will beshaded by light.

Texture can also be added to bring detail and visualrichness to the surfaces.

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5. Lights and Cameras


As you would on a movie set, you must set up lightsand cameras to illuminate and frame objects.

You can then animate both the lights and the camera

to further mimic Hollywood effects.

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6. Effects


There are many effects such as fire, fields of grassand glowing lights that cant be easily representedusing models and textures.

Tools such as particles and Maya Paint Effects can beused to add effects.

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7. Rendering and Compositing


Once all the scenes parts are ready, you can render asingle image or a sequence of images.

You can also render objects separately, then bring

them back together in 2D using a compositingsystem.

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Production Pipelines


Single Artist

Small Production House

Large Production House

Gaming Company School/Student

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