Course Description

Programming advanced lighting using OpenGL and OpenGL Shading Language (GLSL). This includes per-pixel lighting, BRDFs, and multiple shadow rendering techniques.

The complete sylabus will be passed out on the first day of class.

Required Texts

Real-Time Rendering (2nd Ed.) by Tomas Akenine-Möller and Eric Haines. ISBN 1-56881-182-9. The book also has a website, http://www.realtimerendering.com/, that includes lots of additional references and sample code.

OpenGL Shading Language by Randi J. Rost. This book is optional, and either the 1st or 2nd edition should be sufficient. This book also has a web site, http://3dshaders.com/, that includes example shaders and some references. There will not be any readings assigned from this book.

OpenGL Programming Guide by Martin Ecker may also be useful. ISBN 0321335732. There will not be any readings assigned from this book. An older version of the book, which should be sufficient for this course, is available for download as a PDF from http://www.opengl.org/documentation/red_book/.

Programming Libraries

Last term we made heavy use of GLUT for the programming assigments. This term you are free to continue using GLUT, but I strongly recommend SDL instead. There are a number of tutorials available for SDL, though I think the two below will be the most useful.

• Using SDL with Visual Studio
• Using OpenGL with SDL

In addition, there is some image loading code available. To use this code you will need the following:

• Image loading routines
• lib PNG - You will need both libpng-1.2.8-bin.zip and libpng-1.2.8-lib.zip.
• zlib

There is also some glue to make interfacing with GLSL a bit easier.

• glsl_glue.h
• glsl_glue.cpp

OpenGL Shading Language Sample Code

• "Helloworld" Phong shading using GLSL.
• Texture mapping using GLSL..
• Utility drawing routines. Both of these files make use of the glsl_glue.cpp code.
• Draw a torus with tangents.
• Draw a sphere with tangents.
• Header file for the above code.

Course Calendar

Specific details of the course calendar are subject to change. Some details, such as term project and assignments for the last half of the course will be determined later.

Week 1 (January 8^th)

• Slides
• Introduction to course.
• OpenGL lighting refresher.
• How OpenGL performs lighting calculations.
• How OpenGL shades polygons, and what the pitfalls of this approach are.
• Phong shading and per-pixel lighting.
• Outline features of OpenGL 1.3 that allow true Phong shading.
• Homework assignments:
• Read:
• Chapter 3 and the first half of chapter 4 (sections 4.1, 4.2, and 4.3). We'll discuss quaternions (section 3.3) briefly next week.
• J. K autz, W. Heidrich, and H.-P. Seidel, Real-Time Bump Map Synthesis. In Proceedings of Graphics Hardware '01, 2001. http://www.cs.ubc.ca/~heidrich/Papers/
• M. Toksvig, Mipmapping Normal Maps. http://developer.nvidia.com/object/mipmapping_normal_maps.html
• Per-pixel lighting using DOT3 texture environment. (10 points)

Week 2 (January 15^th)

Martin Luther King Day. No class this week.

Week 3 (January 22^nd)

• Finish per-pixel lighting.

Week 4 (January 29^th)

• Slide set 1 and Slide set 2.
• Discuss last week's homework assignment.
• What is the main performance problem with our approach?
• Introduction to the OpenGL Shading Language.
• What fixed-function elements does GLSL replace?
• Overview of vertex and fragment shaders.
• GLSL sample.
• Sample presentation of reading assignment.
• Homework assignments:
• Solution to previous homework.
• Read:
• The first third of chapter 6 (sections 6.1, 6.2, and 6.3). You can safely skim section 6.2, but you'll probably want to read section 6.3 twice.
• W. Heidrich and H.-P. Seidel, Realistic, Hardware-accellerated Shading and Lighting. In SIGGRAPH '99 Conference Proceedings, 1999. http://www.cs.ubc.ca/~heidrich/Papers/
• M. Wloka, Fresnel Reflection. http://developer.nvidia.com/object/fresnel_wp.html
• Per-pixel bump mapping with GLSL. (10 points)

Week 5 (February 5^th)

• Slide set.
• BRDFs part 1
• Introduction to isotropic BRDFs
• Real-time generation of environment maps.
• Homework assignments:
• Read:
• Section 6.4.
• M. Ashikhim, S. Premoze, P. Shirley, A Micro-facet Based BRDF Generator. In SIGGRAPH 2000 Conference Proceedings, 2000. http://www.cs.utah.edu/vissim/papers/facets/
• K. Kautz, P. Vazquez, W. Heidrich, and H. Seidel, A Unified Approach to Prefiltered Environment Maps. In Proceedings of Eurographics Rendering Workshop. 2000. http://www.mpi-sb.mpg.de/~jnkautz/projects/unifiedenvmaps/

Week 6 (February 12^th)

• BRDFs part 2
• More isotropic BRDFs
• Homework assignments:
• Read:
• Dan B Goldman, Fake Fur Rendering, In SIGGRAPH 97 Conference Proceedings, pp. 127-134., 1997. http://www.cs.washington.edu/homes/dgoldman/fakefur/
• Implement Cook-Torrance BRDF. (10 points)
• Solution to previous homework.

Week 7 (February 19^th)

• Slide set.
• Wrap up isotropic BRDFs.
• Why doesn't Cook-Torrance work well for metal?
• How do metals reflect light?
• Introduce Lafortune BRDF.
• Homework assignments:
• Finish last week's assignment.

Week 8 (February 26^th)

• Slide set.
• Wrap up Lafortune BRDF.
• Anisotropic BRDFs
• Homework assignments:
• Read:
• Dan B Goldman, Fake Fur Rendering, In SIGGRAPH 97 Conference Proceedings, pp. 127-134., 1997. http://www.cs.washington.edu/homes/dgoldman/fakefur/
• Implement an additional BRDF with anisotropy. (10 points)

Week 9 (March 5^th)

• Environment maps + BRDFS = pretty
• Homework assignments:
• Read:
• TBD.
• Begin working on final project of the term. Due on day of final. (30 points)

Week 10 (March 12^th)

• Pre-test for final (5 points).
• Pretest answers.
• Homework assignments:
• Prepare for final.
• Continue working on project.

Week 11 (March 19^th)

• Final exam. 5:30PM - 7:30PM. Do not be late today!
• Present final projects.