CS 519 -- RenderMan and OpenGL Shaders

Spring 2008

http://eecs.oregonstate.edu/~mjb/cs519

IM	Lectures	Projects	Handouts	Grades	VHR

This page was last updated: March 12, 2008

Under Construction:
This content is not final until you see this message go away!

Announcements:

• Welcome to CS 519 -- the fun starts now!

• Project #1, the class web form, is due at 23:59:59 on Tuesday, April 1. (no fooling...)

What We Will Be Doing This Quarter

The goals of this course are to leave you "career-ready" (i.e., both work-ready and research-ready) for tasks, both GPU and RenderMan, that require the implementation of graphics algorithms in the form of shaders.

You will have access to the graphics systems in OSU's Computer Graphics Education Lab (CGEL) in Batcheller Hall 244. This is likely the only place around OSU where you can get access to RenderMan. It is also a place to get access to the OpenGL Shading Language (GLSL), although you might have it if you've bought a good graphics card lately.

Speaking of graphics cards, you can tell if a card will support vertex and fragment shaders by looking for the phrase Shader Model 3.0 compliant in its specifications. A card will support vertex, fragment, and geometry shaders if it is Shader Model 4.0 compliant.

CS 519 topics include:

• A more advanced look at the graphics pipeline
• A more advanced look at transformations
• RenderMan
• The RenderMan Interface Bytestream
• RenderMan Surface shaders
• RenderMan Displacement shaders
• Light interaction
• Color interaction
• Opacity interaction
• Step boundaries
• Smooth step boundaries
• Positional and gradient noise
• Fractional Brownian Motion (FBM, 1/f, octave) noise
• The OpenGL Shading Language (GLSL)
• GLSL Vertex shaders
• GLSL Fragment shaders
• GLSL Geometry shaders
• Hiding data in textures
• Enter the "Dino Poster Challenge"
• Enter the "Shader Olympics"

Prerequisites

Professor

The Virtual Hand Raise (VHR)

I recognize that it sometimes takes a certain amount of courage to ask a question in class. But, the worst thing of all is to not ask! So, this class also offers a feature called the Virtual Hand Raise. Click here to get into it. It will allow you to send me a question or comment, completely anonymously. I will answer all questions submitted this way at the start of the next class.

Textbook

Other Good References

Lecture Schedule

To see a Spring Quarter calendar, click here.

Class lecture time is: Monday, Wednesday, and Friday, 1:00 - 1:50.

Be sure to check the class room in the table below to see what days we will be in Kelley Engineering Center room 1003 and what days we will be in the Computer Graphics Education Lab (CGEL -- Batcheller 244).

	Date	Room	Topics
1	March 31	1003	Introductions. General course information. Project #1. The graphics pipeline -- how it really works. Homogeneous coordinates. Coordinate systems: Model, World, Eye, NDC, Clip, Screen.
2	April 2	1003	The graphics pipeline -- how it really works, continued. Transformations, Viewing volumes, Normals. Uniform, Varying, and Attribute variables History of RenderMan
3	April 4	CGEL	Introduction to RenderMan: Shader coordinate system, RIB, shaders, built-in functions and variables bvrman.
4	April 7	CGEL	RenderMan surface and displacement shaders
5	April 9	1003	Noise: Positional, Gradient. Cubic and quintic interpolation.
6	April 11	CGEL	Noise: Fractional Brownian Motion (FBM, 1/f), turbulence.
7	April 14	CGEL	Introduction to the OpenGL Shading Language (GLSL) How GLSL is similar to, and different from, RenderMan shaders Built-in functions and variables Attribute, Uniform, and Varying variables glman
8	April 16	CGEL	Fragment Shaders: Working in Model Coordinates versus Eye Coordinates GLSL Noise
9	April 18	CGEL	GLSL Textures I: unsigned byte, floating point, 2D, 3D, parameters, binding, texture units, multitextures, sampler functions
10	April 21	CGEL	GLSL Textures II: Cube maps. Reflection, refraction.
11	April 23	CGEL	Bump mapping, I
12	April 25	CGEL	Bump mapping, II
13	April 28	CGEL	More fun with vertex shaders: Dome projection, Hyperbolic projection, Geometry Morphing
14	April 30	CGEL	Test #1 review. The optics of rainbows and diffraction The optics of lenses
15	May 2	1003	Test #1
16	May 5	CGEL	Image manipulation in shaders, I
17	May 7	CGEL	Image manipulation in shaders, II
18	May 9	CGEL	Discuss the Shader Olympics Final Project. Look at some examples from last year. Go see the Engineering Expo after class!
19	May 12	1003	Dino Poster class presentations, I
20	May 14	1003	Dino Poster class presentations, II
21	May 16	1003	Written Shader Challenge proposals due at the start of class. Geometry Shaders, I
22	May 19	CGEL	Geometry Shaders, II
23	May 21	1003	The GLSL API, I
24	May 23	1003	The GLSL API, II
25	May 26	----	OSU Holiday -- No Class Today
26	May 28	CGEL	Visualization using shaders.
27	May 30	CGEL	No class today. Work on your projects! Prof. Bailey will be in the CGEL to discuss your projects and answer questions.
28	June 2	1003	Class Evaluations Test #2 review. More Information
29	June 4	CGEL	Shader Olympics Presentations
30	June 6	CGEL	Shader Olympics Presentations
*	June 11?	1003	Test #2 Wednesday, June 11, 9:30 - 11:00 AM, Kelley 1003.

Projects

Grading

Click here to see the current grade posting.

CS 519 will be graded on a fill-the-bucket basis. There will be 9 projects and two tests. You get to keep all the points you earn.

Your final grade will be based on your overall class point total. Based on an available point total of 1040, grade cutoffs will be no higher than:

Files Used in Class

1. Images Shown in Class
2. .rib and .sl files used in class
3. .glib, .vert., and .frag files used in class
4. .obj files used in class

Handouts

1. OpenGL-GLUT-GLUI
2. Homogeneous Coordinates
3. Graphics Pipeline System
4. List of RIB Commands
5. RenderMan shader global variables
6. RenderMan shader functions
7. RenderMan Quadrics
8. Bvrman documentation
9. Glman documentation
10. GLSL Introduction
11. Bump-mapping
12. Ripple Info
13. Rainbows
14. Diffraction
15. Lenses.
16. The GLSL API.
17. Imaging notes.
18. Vis shader notes
19. Geometry shader notes
20. CUDA notes

Executables

These executables are all loaded on the CGEL machines, but you can also get them here in case (1) you want to run them on other machines, or (2) there are newer versions than what are on the CGEL machines.

1. bvrman.exe
2. glman.exe
3. noisegraph.exe

You might also need these dlls:

1. glew32d.dll
2. glut32.dll
3. msvcr71d.dll

Project Turn-In Procedures

• Your project turnins will be both paper and electronic.

• Your electronic turnin will be done at http://engr.oregonstate.edu/teach and will consist of:
  
  1. One or more image files showing what you did
  2. Source files of everything (.rib, .sl, .glib, .vert, .frag, .geom)
  3. A Windows .exe file if needed. This file must be able to run on the CGEL machines.

  Electronic submissions are due at 23:59:59 on the listed due date.

• Your paper turnin will be a stapled bundle consisting of:
  
  1. A cover page (name, project name)
  2. One or more images showing what you did (color preferred, grayscale accepted)
  3. A prose explanation of what you did and why it worked. Your submission will not be considered valid unless you can explain why it works.

  The paper turnin is due the class period following the electronic copy due date (although you are welcome to turn it in early).

• I know some of you know the Cg and HLSL languagexs for shaders, but all GPU assignments must be done in GLSL.

• Your project will be graded and the score posted to the class web page.
  If you disagree with the score, or want to know why you did not receive full credit, then turn in a note to me along with a listing of your program.
  You have one week after the grades are posted to do this!

Class Rules

• Lab Rules: No propping the CGEL doors open, no food in the lab, drinks only in closed containers. (I am not being a mindless jerk about the no-food requirement -- ask me to see my exhibit of the cockroaches that once inhabited the CGEL. Their friends are no doubt waiting for a reason to come back.)

• Keep the air conditioning running -- we have had problems with systems in that room failing because the temperature gets too high.

• Computer Security: We take computer security very seriously. Please use intelligently-chosen passwords and protect them. Anyone caught abusing the system or causing deliberate damage will be asked to drop the class and the matter will be turned over to the Dean's Office.

• Working Together: It is OK to work together by sharing information, but each person's projects must be original work with no sharing of code.

• Cheating: You are expected to do your own work. Sharing code, except for explicit team projects, is considered cheating. Anyone caught cheating will fail this class, and the matter will be turned over to the Dean's Office.

• Academic Dishonesty: You are expected to read and understand the Computer Science department's Academic Dishonesty Policy. You can find it here. If you do not understand some part of it, ask me!

• The only address I will ever use to email you will be mjb at some Oregon State domain. If you get an email from a different address claiming to be me, do not respond to it, and let me know right away.

Students With Disabilities

Accommodations are collaborative efforts between students, faculty and Services for Students with Disabilities (SSD). Students with accommodations approved through SSD are responsible for contacting the faculty member in charge of the course prior to or during the first week of the term to discuss accommodations. Students who believe they are eligible for accommodations, but who have not yet obtained approval through SSD, should contact SSD immediately at 737-4098.

Other Useful Online Graphics and Shader Information

• RenderMan:
  • Central source for RenderMan information: http://renderman.org/
  • RIB Specification: https://renderman.pixar.com/products/rispec/rispec_pdf/RISpec3_2.pdf
  • Main Hall of the RenderMan Academy: http://rendermanacademy.com/docs/MainHall.html
  • Archives of RIB files (including a teapot!) and Shaders: http://renderman.org/RMR/Examples
  • RenderMan Documents: http://giga.cps.unizar.es/prman/Toolkit/index.html
  • Shader-Writing Tutorial: http://www.fundza.com/rman_shaders
  • Using RenderMan in Animation Production: http://www.renderman.org/RMR/Publications/sig95.course04.pdf
  • A stained glass shader: http://www.cs.unc.edu/~debug/238/shader.html
  • Pixie -- an open source RenderMan-compatible renderer: http://www.cs.utexas.edu/~okan/Pixie/pixie.htm

• OpenGL:
  • Industry-wide OpenGL Information: http://www.opengl.org
  • The OpenGL 1.1 State machine Diagram http://www.opengl.org/documentation/specs/version1.1/state.pdf
  • OpenGL Man Pages: http://www.cs.rutgers.edu/~decarlo/428/glman.html
  • CodeMonsters's great collection of environment cube maps: http://www.codemonsters.de/html/textures_cubemaps.html

• The GLUT Library:
  • HTML GLUT Documentation: http://www.opengl.org/documentation/specs/glut/spec3/spec3.html
  • PDF GLUT Documentation: http://www.opengl.org/documentation/specs/glut/glut-3.spec.pdf

• The GLUI Library:
  • OpenGL User Interface (GLUI) Documentation http://www.cs.unc.edu/~rademach/glui/src/release/glui_manual_v2_beta.pdf
  • General GLUI Information http://www.cs.unc.edu/~rademach/glui

• GLSL:
  • GLSL Orange Book reference site http://www.3dshaders.com

• SIGGRAPH (The Special Interest Group on Computer Graphics): http://www.siggraph.org

• SIGGRAPH Online Computer Graphics Bibliography Database: http://www.siggraph.org/publications/bibliography

• Game Information:
  • Game Developer: http://www.gamedev.net
  • Gamasutra: http://www.gamasutra.com
  • Select Parks Game Development Information: http://www.selectparks.net

• 3D Models you can download:
  • Level of Detail book support (free): http://lodbook.com/models
  • Amazing 3D Graphics (that's the name of the company) (free) http://www.amazing3d.com/free/free.shtml
  • Ohio State (free): http://sampl.ece.ohio-state.edu/data/3DDB/Models/index.htm
  • Digimation (costs money): http://www.digimation.com