CS 481/681 - Topics in Computer Graphics

Meeting time: 11:30-1:00pm
Room 104 Chapman Building
University of Alaska Fairbanks

UAF CS F481/F681
3.0 Credits, Spring 2010
Prerequisite: CS 381 (Graphics)

Instructor: Dr. Orion Lawlor
lawlor@alaska.edu, 474-7678
Office: 201E Chapman
Hours: 2-3 TR (or whenever!)

Optional Textbooks: Computer Graphics: Principles and Practice in C, Foley & van Dam
and
GPU Gems vols 1-3.

I've posted course grades, and comments on your project 2 final code on NetRun. You did an immense amount of work on those projects--thank you!

Lecture Notes	Example Code	Homework
05_04_blurring: Blurring: How and Why, 2010-05-05 04_27_illumination: Global Illumination Terminology: Radiology & Radiometry, 2010-04-26 04_20_shadow_maps: Shadow Maps, 2010-04-19	radiosity2--Interactive global illumination, by just rendering the world from each vertex. .zip or .tgz (2010-04-29) radiosity1--Compute actual radiance integral, with conetraced shadows. .zip or .tgz (2010-04-26) shadowvolumes--Stencil-based shadow volumes, with and without the reversing trick. .zip or .tgz (2010-04-22) shadowmap5--Multisample soft shadow maps with distance-dependent size, by using an occluder search. .zip or .tgz (2010-04-22) shadowmap4--Soft shadows using a depth image with GL_TEXTURE_COMPARE filtering, and multiple shadow samples per pixel. .zip or .tgz (2010-04-21) shadowmap3--Render local shadow map, using a perspective shadow matrix. .zip or .tgz (2010-04-20) shadowmap2--Render shadow map pixels using a shadow matrix and a framebuffer object. .zip or .tgz (2010-04-19) shadow1--Draw polygon shadows using a very simple shadow map. .zip or .tgz (2010-04-15)	proj2d: Turn in your final project 2 code on Blackboard by midnight Wendesday, May 12. (modified 2010-05-07) proj2c: Be ready to give a 10-minute in class presentation this Tuesday, May 4! (modified 2010-04-29) proj2b: Turn in your rough draft project 2 code on Blackboard by midnight Thursday, April 22. (modified 2010-04-15)
04_13_procedural: Procedural Solid Texturing, 2010-04-14 04_01_geometryfiles: Reading Triangles from Files, and Vertex Buffer Objects, 2010-03-31 03_30_imagefiles: Image File Formats: Image Input and Output, 2010-03-29	perlin_purloin--Perlin noise, purloined for the GPU. .zip or .tgz (2010-04-15) mandelbrot--A GPU Mandelbrot set renderer. .zip or .tgz (2010-04-14) fur2--Render fur, from a 3D procedural texture underneath. .zip or .tgz (2010-04-13) spritelib--Simple 2D game demo, with image input and game "physics". .zip or .tgz (2010-04-08) fur1--Render fur, by drawing a set of extruded shell layers around geometry. .zip or .tgz (2010-04-08) obj_io--Read vertices and faces from a Blender-created .obj file. .zip or .tgz (2010-04-01) triangle_io--Read triangles from a Blender-created .raw file. .zip or .tgz (2010-03-31) image_io--Read images using SOIL, GLT, and libjpeg; write images in PPM. .zip or .tgz (2010-03-29) steep_parallax_mapping--Demonstrates step-by-step steep parallax mapping in a raytracer. .zip or .tgz (2010-03-25) parallax_mapping--Demonstrates parallax mapping in a raytracer. .zip or .tgz (2010-03-24)	proj2: Be ready to describe your project 2 topic in class on Thursday, April 15. (modified 2010-04-14) HW4: Turn in a 3D model and 2D image on Blackboard by midnight Thursday, April 8. (modified 2010-04-01) proj1d: Turn in your final project 1 code on Blackboard by midnight Tuesday, March 30. (modified 2010-03-24)
03_16_review: Course Review for the Midterm, 2010-03-15 03_04_textures: Textures and Framebuffer Objects , 2010-03-04 03_02_IFS: Bounding Volume Hierarchies and Iterated Function Systems, 2010-03-03 02_23_planet: Raytracing a Planet's Atmosphere, 2010-02-24 02_18_atmospheric: Atmospheric Scattering Effects, 2010-02-18 02_16_refraction: Refracted Rays, Snell's Law, and Fresnel, 2010-02-18 02_11_recursive: Recursive Raytracing, on GPU Hardware without Recursion, 2010-02-11	bvh_raytrace--Builds a Bounding Volume Hierarchy, which allows a large IFS to be raytraced efficiently. .zip or .tgz (2010-03-24) deferred_raytrace--A deferred shading raytracer: render to an intermediate buffer, and read back. .zip or .tgz (2010-03-04) ifs_raytrace--Iterated function system raytracing, via macro-expanded recursion. .zip or .tgz (2010-03-03) multisample_raytrace--Raytracer taking multiple samples per output pixel. .zip or .tgz (2010-02-25) planetary_raytrace--Raytrace a planet, with an exponential-in-height atmosphere. .zip or .tgz (2010-02-23) atmospheric_raytrace--Raytrace with atmospheric effects, with different fog constant underwater. .zip or .tgz (2010-02-18) refract_raytrace--Raytrace with reflection or refraction, determined per-object. .zip or .tgz (2010-02-16) reflect_raytrace--Classic recursive raytracing scene: mirror spheres floating over a checkerboard. .zip or .tgz (2010-02-11)	proj1c: Give a 10-minute presentation on your project in class on Tuesday, 2010-03-23. This is a chance to talk about your approach, as well as show us your pretty pictures and/or code. PowerPoint is not required, but having a few illustrations prepared is an excellent idea. (modified 2010-03-18) proj1b: Turn in your project 1 rough draft code on Blackboard by midnight Tuesday, March 16. (modified 2010-03-18) proj1: First project topic due in class Tuesday, March 2. (modified 2010-03-18) HW3: Turn in a bumped-reflection GPU raytracer on Blackboard by midnight Thursday, 2010-02-18. (modified 2010-02-13)
02_09_textures: Storing Raytraced Geometry in Textures, 2010-02-08 02_04_quadric: Raytracing Quadric Surfaces, 2010-02-03 02_02_multiple: Raytracing Multiple Objects, 2010-02-01 01_28_lighting: Local Diffuse & Specular Lighting Model, 2010-01-28 01_26_raytracing: Parametric Object Geometry: Raytrace Intersection Tests, 2012-01-13 01_21_approach: The Modern Approach to OpenGL, 2010-01-22	geomtex_raytrace--Store raytraced object geometry in a texture rectangle, allowing an arbitrary number of objects. .zip or .tgz (2010-02-09) singlepass_raytrace--Raytrace several objects in one pass, allowing object-object shadows. .zip or .tgz (2010-02-05) quadric_raytrace--Raytrace an arbitrary quadric object, including the modelview transform. .zip or .tgz (2010-02-03) multipass_raytrace--Raytrace with Z-buffer and multipass multi-object support. .zip or .tgz (2010-02-01) shadow_raytrace--Raytrace with shadow ray, and handles both roots. .zip or .tgz (2010-02-01) specular_raytrace--Raytrace with specular and diffuse per-pixel lighting. .zip or .tgz (2010-02-01) parabola_raytrace--Raytrace a not-quite-parabola of revolution (first hit only). .zip or .tgz (2010-01-25) plane_raytrace--Raytrace a plane, with decent camera control. .zip or .tgz (2010-01-22) vbo_simple--Use vertex buffer objects for higher performance geometry. .zip or .tgz (2010-01-22)	HW2: Turn in a multiple-ellipse GPU raytracer on Blackboard by midnight Thursday, 2010-02-11. (modified 2010-02-05) HW1: Turn in a simple GPU raytracer using GLSL shaders. Turn in on Blackboard by midnight Tuesday, 2010-02-02. (modified 2010-01-22)

Reference Material

Course syllabus includes dates to remember, the grading policy, and a course outline.
There are tons of example programs linked off my last 2009 CS480, 2008 CS481 and 2007 CS481 and 2006 CS381 homepages.
For GLSL, the main shading language we'll use on the graphics card, the Quick Reference (Cheat Sheet) gives an excellent summary. For more detail on the language, read the OpenGL Shader Language Specification. The C interface is described in the ARB_shader_objects spec. The actual underlying hardware operations are described in the ARB_vertex_program and ARB_fragment_program specs.
The official OpenGL 1.4 Specification is almost unreadable legalese, but sometimes is the only way to tell what a given OpenGL call really does.
Getting OpenGL running fast is my little guide to fast graphics hardware and software.
NeHe has the definitive set of OpenGL tutorial code. He doesn't cover programmable shaders very heavily, though--it's mostly fixed-function OpenGL.
OpenGL.org has a good compendium of documentation and links for OpenGL. Also see Steve Baker's notes.
gpgpu.org, a research news site for new and interesting uses of graphics hardware. Also see shadertech.
OpenGL utilities:
- GLUT or FreeGLUT, for cross-platform OpenGL startup and basic interface utility routines.
- GLEW, for managing OpenGL extensions like ARB_FRAGMENT_PROGRAM.
- Apple's MacOS X OpenGL Profiler, for determining OpenGL performance bottlenecks.