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CMPT 361

CMPT 361. Week 1. Prerequisites. Good programming skills in C (or C++) Basic Data Structures Linked lists Arrays Geometry Simple Linear Algebra. Applications of Graphics. Entertainment Visualization HCI Virtual Reality Computer Aided Design. What is Computer Graphics.

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CMPT 361

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  1. CMPT 361 Week 1

  2. Prerequisites • Good programming skills in C (or C++) • Basic Data Structures • Linked lists • Arrays • Geometry • Simple Linear Algebra

  3. Applications of Graphics • Entertainment • Visualization • HCI • Virtual Reality • Computer Aided Design

  4. What is Computer Graphics • Uses a computer as a rendering toolfor • Generation of images from models • Manipulation of images

  5. Goals of CG • Simulate (or rather fake) Physics! • We need techniques that are • Fast ... Real time? • Practical • Elegant

  6. First imaging algorithm

  7. Ray tracing

  8. Ray tracing

  9. Raytracing

  10. Modeling • Interactive • CAD • Scanning (3D scanners) • Procedural • Fractals • Can be mixed...

  11. CMPT 361

  12. Modeling in CMPT 361 • Concentrate on polygonal models for geometry • 2D: points, lines, and polygons • 3D polygonal meshes • A little bit of parametric curves and surfaces • OK, we have a geometric model, what now? • Rendering...

  13. Rendering in CMPT 361 • Add in viewing information: • Transformation: transform our geometric model • depending on position and orientation of camera • Visibility: determine what can be seen (do not draw what cannot been seen) • Add in light: illumination and shading • Add in texture: texture mapping • Add in color: some coverage on color models/representations

  14. Animation • Temporal change of images...

  15. Topics • Image formation • Programming with OpenGL • 2D and 3D geometric transformations • rotation, • translation, • use of homogenous coordinates, etc.

  16. Topics • Hidden surface removal, clipping • Illumination and shading • Rasterization • Curves and surfaces • TBA

  17. CMPT 361

  18. What is expected... • Good programming background • C/C++ • OpenGL? • Data structures, algorithms • Basic math • Numerical integration • Linear algebra, system of Linear Eqns • Vectors, matrices

  19. I am not going to... • Teach C/C++ • Teach data structures • Teach linear algebra and basic numerical methods • Questions about C/C++ are low priority • Lab procedures are your responsibility

  20. Break

  21. Overview of a Graphics System

  22. Input devices

  23. Display devices : CRT

  24. Raster display basics • Pixels! • 1080p = how many pixels? • Bit depth

  25. Synthetic Camera Model

  26. Synthetic Camera Model • How to see 3D?

  27. OpenGL

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