Graphics Graphics Lab @ Korea University Graphics Lab @ Korea University Introduction to Computer Graphics Graphics Laboratory

Graphics

Graphics Lab @ Korea Graphics Lab @ Korea UniversityUniversity

http://kucg.korea.ac.kr

Introduction to Computer Graphics

Graphics LaboratoryGraphics Laboratory

Korea UniversityKorea University

KUCG



Contents

What is computer graphics? Main themes Applications Graphics process

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Inspirational Video

Entirely computer-generated

"Geri's Game." (c) Pixar 1997

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Exercise: Video Analysis

What is modeled or simulated to produce this video? Representing (modeling) of objects Illumination

Light refraction Opacity Shadows

Textures Camera focus Animation

Physics Music Scenario

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What is Computer Graphics?

Producing pictures/images using a computer Algorithms for visual simulations

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Main Themes

Imaging Representing 2D images

Modeling Representing 3D objects

Rendering Constructing 2D images from 3D models

Animation Simulating changes over time

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Imaging

Generate an artistic image

<Image Modification><Image Modification> <Image Filtering><Image Filtering>

<Morphing><Morphing>

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Modeling

Shape description & design

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Rendering

Simulating behavior of lights & image formation

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Animation

Motion representation & control

<Motion Blur><Motion Blur>

<Motion Capture><Motion Capture>

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Animation Examples

Motion Capture-Motion Capture-BasedBased

Fluid Fluid SimulationSimulation

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Applications

Computer-Aided Design (CAD) Scientific Visualization Training & Education Computer Art Entertainment

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Computer-Aided Design

For engineering and architectural system Design of building, automobile, aircraft, etc.

Los Angeles Los Angeles Airport Airport (Billy Jepson, UCLA)(Billy Jepson, UCLA)

Boeing 777 Boeing 777 Airplane Airplane

(Boeing Corporation)(Boeing Corporation)

Gear Shaft Gear Shaft DesignDesign

(Intergraph (Intergraph Corporation)Corporation)

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Scientific Visualization

For scientific, engineering, and medical data

Airflow inside a Thunder StromAirflow inside a Thunder Strom((Bob Wilhelmson, Univ. of Illinois Bob Wilhelmson, Univ. of Illinois

at Urbana-Champaignat Urbana-Champaign))

Apo A-1Apo A-1((Theoretical Biophysics Group, Theoretical Biophysics Group,

Univ. of Illinois at Urbana-Univ. of Illinois at Urbana-ChampaignChampaign))

Visible HumanVisible Human((National Library of HumanNational Library of Human))

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Training

Computer-generated models of physical, financial and economic systems For educational aids

Flight Flight SimulationSimulation

(NASA)(NASA)

Driving Driving SimulationSimulation

(Evans & Sutherland)(Evans & Sutherland)

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Education

Human Human SkeletonSkeleton

(SGI)(SGI)

Forum of Forum of TrojanTrojan

(Bill Jepson, UCLA)(Bill Jepson, UCLA)

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E-Commerce

Virtual Phone Virtual Phone StoreStore

(Lucent Technology)(Lucent Technology)

Interactive Kitchen Interactive Kitchen PlannerPlanner

(Matsushita)(Matsushita)

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Computer Art

Graphics for artist

Blair Arch Blair Arch (Marissa Range (Marissa Range

’98)’98)

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Entertainment

Graphics for movies, games, VR etc.

World of Warcraft, 2004~2008World of Warcraft, 2004~2008Beowulf, 2007Beowulf, 2007

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Graphic Process

3D3DGeometricGeometric

ModelsModels

3D3DAnimationAnimationDefinitionDefinition

RenderingRenderingImageImage

Storage andStorage andDisplayDisplay

TextureTextureInformationInformation

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Graphics Process: Geometric Modeling


ModelsModelsRenderingRendering

3D Scanning3D Scanning

InteractivInteractivee

GeometriGeometricc

ModelingModelingModelingModelingLibrariesLibraries

DisplacementDisplacementMappingMapping

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Graphics Process: Geometric Modeling

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Geometric Process:3D Animation


RenderingRendering

Motion DesignMotion Design

MotionMotionComputatiComputati

onon

MotionMotionCaptureCapture

DynamicDynamicDeformationsDeformations

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Geometric Process:3D Animation

Ratatouille, 2007Ratatouille, 2007

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Graphics Process:Texturing

TextureTextureInformationInformation RenderingRendering

Scanned ImagesScanned Images

Painted ImagesPainted Images

CapturedCapturedImagesImages

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Graphics Process:Texturing

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Graphic Process :Rendering

TextureTextureInformationInformation



ModelsModelsRenderingRendering

Transformation,Transformation,Clipping,Clipping,

PerspectivePerspective

ImageImageGenerationGeneration

ImageImageStorageStorage

andandDisplayDisplay

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Graphic Process :Rendering

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Graphic Process:Image Storage and Display

HardwareHardwareFramebufferFramebuffer

RenderingRendering

DiskDiskFileFile

FilmFilmRecorderRecorder

VideoVideoRecorderRecorder

Documents

Graphics Graphics Lab @ Korea University Graphics Lab @ Korea University Introduction to Computer Graphics Graphics Laboratory