CS 381 Fall 2009: Computer Graphics

CS 381 Fall 2009
Computer Graphics

Department: Computer Science, UAF
Instructor: Glenn G. Chappell
Office: 201B Chapman
Office Hours: 10–12 MWF, or by appointment
Office phone: (474-)5736
E-mail: ffggc@uaf.edu
Paper mailbox: Inside the CS Department office, 202 Chapman

Announcements

[11/19] Student Presentations
All students are expected to do an in-class presentation on some aspect of computer graphics. These will be given during the last week of class (12/8 & 12/10). I plan to begin scheduling these on Tuesday, November 24.
- Presentations may be done individually or in groups of two. (But we do not have time for everyone to do an individual presentation; groups are a Good Thing.)
- Presentations should be 20–30 minutes long.
- A presentation will typically cover some algorithm, structure, technique, or feature of OpenGL/GLSL that we have not covered in class. Study the concept, implement/use it, and then do show & tell in class.
- Some possible topics:
  - A method for generating shadows.
  - A geometry-based HSR method (Depth Sort algorithm, BSP Trees, etc.)
  - OpenGL buffer objects and their uses.
  - Jittering and the accumulation buffer.
  - Bump mapping.
  - Geometry shaders.
  - Simulating some interesting surface or substance: fur, water, fire, brushed metal, a grassy field, etc.
  - A data structure that is useful in CG: Octree, kd-tree, scene graph, etc.
- Topics vary in difficulty. This should be taken into account when planning your presentation. If your topic was easy to implement, then there should be additional material, multiple implementations, etc. If it was difficult, then just show us the implementation and talk about it.
[11/5] Installing GLEW under MacOS
GLEW installation instructions for MacOS [RTF file]. Thanks to Kevin Layer.

Course Materials

Materials are listed with the most recent at the top.

Week	Class Meetings	Readings & Homework	Handouts, Sample Code, Etc.
Week 11 11/16–11/20	11/19: Reflection mapping (cont’d); environment maps Lecture notes 11/17: Textures & lighting; reflection mapping Lecture notes		`spheremap_shaders.zip` [ZIP archive] Shaders for use with `trytexture.cpp` Sphere mapping Posted Tue 11/17 `reflmap_shaders.zip` [ZIP archive] Shaders for use with `trytexture.cpp` Simple (too simple) reflection mapping Posted Tue 11/17 `texlight_shaders.zip` [ZIP archive] Shaders for use with `trytexture.cpp` Texture mapping with per-fragment lighting Posted Tue 11/17
Week 10 11/9–11/13	11/12: Introduction to textures (cont’d) 11/10: Lighting details; communicating with shaders; introduction to textures		`simpletex_shaders.zip` [ZIP archive] Shaders for use with `trytexture.cpp` Basic texture mapping Posted Thu 11/12 `trytexture.cpp` [C++ source] Program for testing texture shaders Requres GLEW, shader source code Posted Thu 11/12 `attenuate_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Quadratic lighting attenuation Posted Tue 11/10
Week 9 11/2–11/6	11/5: Computing normals; fancy lighting Lecture notes 11/3: Reflection models (cont’d) Lecture notes	Assignment 4 Due Tue 11/17 Posted Sat 11/7 Revised Tues 11/10	`spotlight_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Per-fragment spotlight using Blinn-Phong reflection model Posted Thu 11/5 `mytorus_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Computes vertex positions, normals, and per-fragment lighting Posted Thu 11/5 `facetnorm.cpp` [C++ source] Facet-normal demo Requres GLEW, shader source code Can use same shaders as those for `tryshader.cpp` Posted Thu 11/5 `perfrag_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Per-fragment lighting using Blinn-Phong reflection model Posted Tue 11/3 `blinnphong_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Per-vertex lighting using Blinn-Phong reflection model Posted Tue 11/3 Quiz 4 Solutions [PDF] Posted Tue 11/3
Week 8 10/26–10/30	10/29: Reflection models Lecture notes 10/27: Where are we?; introduction to shaders; the basics of GLSL Lecture notes		`phong1_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Per-vertex lighting using Phong reflection model Posted Thu 10/29 `lambert_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` Per-vertex lighting using Lambertian reflection model Posted Thu 10/29 `plain_shaders.zip` [ZIP archive] Shaders for use with `tryshader.cpp` “Plain” shaders: no lighting Posted Thu 10/29 `tryshader.cpp` [C++ source] Program for testing various shaders Requres GLEW, shader source code Posted Thu 10/29 Revised Sun 11/1 `shadercheck.cpp` [C++ source] Simple shader demo Requres GLEW Posted Tue 10/27
Week 7 10/19–10/23	10/22: Midterm Exam 10/20: HSR (cont’d); general review Lecture notes
Week 6 10/12–10/16	10/15: HSR Lecture notes 10/13: Class canceled	Assignment 3 Due Tue 10/20 Posted Wed 10/14
Week 5 10/5–10/9	10/8: 3-D viewing (cont’d); hierarchical objects Lecture notes 10/6: 3-D viewing (cont’d)		`arm.cpp` [C++ source] Hierarchical object demo Posted Thu 10/8 `flyer2.cpp` [C++ source] Simple flight simulator (improved) Posted Tue 10/6 Revised Thu 10/8
Week 4 9/28–10/2	10/1: 3-D viewing Lecture notes 9/29: The details of transformations	Assignment 2 Due Wed 10/7 Posted Mon 9/28	`flyer1.cpp` [C++ source] Simple flight simulator Posted Tue 10/6 `view3d_2.cpp` [C++ source] Simple 3-D viewing (improved) Posted Thu 10/1 `view3d_1.cpp` [C++ source] Simple 3-D viewing Posted Thu 10/1
Week 3 9/21–9/25	9/24: Picking (cont’d); introduction to 3-D; vectors & matrices 9/22: Picking		`selectionmode.cpp` [C++ source] OpenGL selection mode demo Posted Thu 10/1 `readpixel.cpp` [C++ source] Pixel reading Posted Thu 10/1 `extent.cpp` [C++ source] Extent testing Posted Thu 10/1
Week 2 9/14–9/18	9/17: Linear interpolation; the mouse in GLUT Lecture notes 9/15: Animation Lecture notes		`follow.cpp` [C++ source] Simple mouse usage Posted Thu 9/17 `bounce.cpp` [C++ source] Animation demo Posted Tue 9/15
Week 1 9/8–9/11	9/10: OpenGL primitives; events; the keyboard in GLUT; a little about transformations Lecture notes 9/8: Introduction to OpenGL; GLUT programs Lecture notes	Assignment 1 Due Thu 9/17 Posted Wed 9/9	`interact.cpp` [C++ source] Demo of simple interaction & transformations Posted Thu 9/10 Distributed in class Tue 9/15 `tryme.cpp` [C++ source] An OpenGL/GLUT program to compile and execute Used in Assignment 1, Exercise A Posted Wed 9/9 `sample3d.cpp` [C++ source] Sample 3-D OpenGL/GLUT program Posted Tue 9/8 Distributed in class Tue 9/8 `sample2d.cpp` [C++ source] Sample 2-D OpenGL/GLUT program Posted Tue 9/8 Distributed in class Tue 9/8
Week 0 9/3–9/4	9/3: Course overview; introduction to computer graphics Lecture notes		Syllabus Posted Thu 9/3 Distributed in class Thu 9/3 Revised Fri 9/4

Links

External links last checked September 10, 2009.

OpenGL, GLUT, & GLSL Resources

Running GLUT Programs: This is my page about installing GLUT and compiling GLUT programs under various operating systems. It includes a downloadable version of the “freeglut” package for Windows.
GLEW: The OpenGL Extension Wrangler Library: A package for managing OpenGL extensions. Required for compiling and executing any of the shader code used in this course.
GLSL Tutorial: A nice tutorial on GLSL, at Lighthouse 3D (“a Resource for 3D Programmers on OpenGL, VRML, and Shockwave 3D”). I have found this tutorial useful for filling in gaps in my own knowledge. Recommended.

CS 381 Fall 2009 Computer Graphics

Announcements

Course Materials

Links

OpenGL, GLUT, & GLSL Resources

Other Links

CS 381 Fall 2009
Computer Graphics