Cmsc 427 computer graphics
Download
1 / 40

CMSC 427: Computer Graphics - PowerPoint PPT Presentation


  • 434 Views
  • Uploaded on

CMSC 427: Computer Graphics David Jacobs Today’s Class Whirlwind intro to graphics What problems does graphics deal with? Examples of leading edge work. Applications What we’ll cover Fundamental issues underlying these. Class structure and logistics

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'CMSC 427: Computer Graphics' - paul


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Today s class l.jpg
Today’s Class

  • Whirlwind intro to graphics

    • What problems does graphics deal with?

    • Examples of leading edge work.

    • Applications

  • What we’ll cover

    • Fundamental issues underlying these.

  • Class structure and logistics


Computer graphics possible definitions l.jpg
Computer Graphics: Possible Definitions

  • Using computers to create images?

  • Creating realistic images of the world

  • Also creating semi-realistic images

  • Information visualization


Realistic images l.jpg
Realistic Images

  • Geometry

  • Lighting/Intensities

  • Motion


Geometry l.jpg
Geometry

  • 3D Models

  • Projection

  • Visibility


3d models scanning l.jpg
3D Models - Scanning

(http://graphics.stanford.edu/projects/mich/).


Scanned model l.jpg
Scanned Model

On the left is a photograph of Michelangelo's David.

On the right is a computer rendering made from a geometric model.

(http://graphics.stanford.edu/projects/mich/).


3d models generated l.jpg
3D models - Generated

Realistic modeling and rendering of plant ecosystems: Oliver Deussen1 Pat Hanrahan2 Bernd Lintermann3 Radom´ır Mˇech4

Matt Pharr2 Przemyslaw Prusinkiewicz4

http://graphics.stanford.edu/papers/ecosys/ecosys.pdf


Geometry projection visibility l.jpg
Geometry – Projection, Visibility

The Walkthru Project

http://www.cs.unc.edu/~walk/


Lighting l.jpg
Lighting

  • Modeling Lighting

  • Reflectance

  • Texture

  • Shadows (visibility)

  • Interreflections


Lighting11 l.jpg
Lighting

(from Debevec)


Light l.jpg
Light

Source emits photons

And then some reach the eye/camera.

Photons travel in a straight line

  • When they hit an object they:

  • bounce off in a new direction

  • or are absorbed

  • (exceptions later).




Skin reflectance l.jpg
Skin Reflectance

BRDF

BSSRDF

http://graphics.stanford.edu/papers/bssrdf/

(Jensen, Marschner, Levoy, Hanrahan)


Slide16 l.jpg
Hair

http://graphics.stanford.edu/papers/hair/hair-sg03final.pdf


Texture l.jpg
Texture

Photo

Pattern Repeated


Texture18 l.jpg
Texture

Photo

Computer Generated


Shadows l.jpg
Shadows

(from Langer and Zucker)


Interreflections l.jpg
Interreflections

Falling Water model, Bruce Walter thesis.

http://www.graphics.cornell.edu/%7Ebjw/bwthesis.pdf


Motion capture l.jpg
Motion Capture

http://mocap.cs.cmu.edu/search.php?subjectnumber=%&motion=%





Images based on realism l.jpg
Images based on realism

(De Carlo and Santella)



Slide27 l.jpg

Membrane Ion Channels

Picture Omitted

Nicotinic Acetylcholine Receptor in Membrane mimetic Slab

(77K atoms)

(Prof. Varshney)


Modern applications slides courtesy of prof varshney l.jpg
Modern Applications(slides courtesy of Prof. Varshney)

  • Computer-Aided Design/Manufacturing

  • Medicine

  • Biochemistry

  • Simulation

  • Cartography

  • Electronic publishing

  • Computer Animation / Film Production

  • Art

  • Games


Computer aided design l.jpg
Computer-Aided Design

Picture Omitted

Virtual Car

Images courtesy Mercedes-Benz


Drug design l.jpg
Drug Design

Picture Omitted

Complementarity of

Transthyretin Domains


Architectural walkthroughs l.jpg
Architectural Walkthroughs

Picture Omitted

Image Courtesy

Lightscape


Medical imaging l.jpg
Medical Imaging

Picture Omitted

CT Volume Rendering

Image courtesy: GE CRD Labs

Volume Rendering with Reflections

Image courtesy: Arie Kaufman, SUNY SB


Computational simulations l.jpg
Computational Simulations

Picture Omitted

Flow Fields for Space Shuttle Launch Vehicle

Image Courtesy: Fred Martin et al., NASA Johnson Space Center


Film production l.jpg
Film Production

Picture Omitted

Finding Nemo, Pixar Animation Studios


Computer games l.jpg
Computer Games

Picture Omitted


What we ll learn l.jpg
What we’ll learn

  • Fundamental principles/math

    • Geometry

    • Reflectance modeling

  • Algorithms

  • Programming – C++, OpenGL, GLUT


Slide37 l.jpg

  • Introduction

  • Graphics displays and Open GL

  • Geometric Objects

  • Geometric Transformations

  • Projection

  • Display – Scan Conversion

  • Texture

  • Color and Transparency

  • Sampling and Filtering

  • Midterm

  • Midterm recap

  • Culling, Depth cues and Collisions

  • Visibility Determination

  • Illumination, Shading

  • Ray Tracing

  • Shadows

  • Global Illumination

  • Modeling

  • Interpolation and approximation

  • Rendering

  • Image-Based Rendering

  • Animation

  • Conclusions

Outline


Slide38 l.jpg
Text

  • Required: Computer Graphics with OpenGL, Third Edition by Donald Hearn and M. Pauline Baker ISBN 0-13-015390-7, Prentice Hall

  • Recommended: OpenGL 1.4 Programming Guide, Fourth Edition: The Official Guide to Learning OpenGL, Version 1.4 by OpenGL Architecture Review Board, Dave Shreiner, Mason Woo, Jackie Neider, Tom Davis ISBN 0-321-17348-1, Addison-Wesley You can download OpenGL 1.1 Programming Guide


Course requirements l.jpg
Course Requirements

  • Prerequisites

    • Linear Algebra

    • CMSC 420 (programming experience)

  • Assignments

    • Reading (Today, Chapter 1, Tuesday, Chapter 2)

    • Problem Sets (5)

      • Programming in OpenGL

      • Pencil and paper problems.

      • Challenge problems

    • Midterm, final


Logistics l.jpg
Logistics

  • Questions: WebCT

  • Teacher–David Jacobs [email protected]

    • Office hours, Tu, W 2-3

  • TA – Derek Juba [email protected]

    • Office hours, M 2:30-3:30, Th 12:30-1:30

  • Assignments

    • Handing in - WebCT

    • Late policy - Homework due start of class.   Due Thursday, late penalty of 10% if 24 hours late.  30% penalty if 11am next Monday. Not accepted later. Due Tuesday, late penalty 10% for 24 hours, 20% for 48 hours, no later.


ad