Final Review
CS 445: Computer Graphics

The final will be held Saturday, 2-5pm, Dec 20, 2008. It will be cumulative over the entire semester.

Review class notes, online notes, labs, and relevant sections in textbook.

Topics

• See Midterm review.

• Shading

  • OpenGL: defining lights and materials.
  • Phong Reflection Model: ambient, diffuse, specular
  • Computing normals for different surface representations.
  • Shading Models: flat, Gouraud, Phong
  • Spotlights.

• Textures

  • Frame Buffers
  • Setting texture coordinates in OpenGL
  • Setting texture paramters and modes in OpenGL
  • Reading in textures in OpenGL
  • Mapping 2D images onto 2D surfaces embedded in 3D space.
  • Procedural textures vs image maps
  • Convolution
  • Misc
    • Bitmaps, masks, bitwise logic operations.
    • Cube mapping (environment mapping)
    • Mipmapping - multum in parvo (many things in a small place)
    • Noise and tubulence

• Blending and transparency with the alpha component. How does it work? Why is it difficult to do transparency correctly?

• Scanline Rendering vs Ray Tracing: What is the difference? What are the advantages/disadvantages?

• How do vertex and fragment shaders fit in the OpenGL pipeline? You should review the pipeline in any case! Why can't the OpenGL fixed pipeline implement the Phong Lighting Model?

• Dynamical Systems: Physically Based Modeling

  • Six degrees of freedom: v and p.
  • First order differential equation representing a particle motion.
  • Solution using Euler's equation.
  • Resulting equations and solutions for constant motion (f=0), gravity, and springs.