CS 457 / 557 -- Computer Graphics Shaders

Winter Quarter 2022

http://cs.oregonstate.edu/~mjb/cs557

Resources Page

Projects	Handouts	PB Zoom

This page was last updated: March 13, 2022

"Don't wake me for the end of the world unless it has very good special effects."

-- Roger Zelazny (science fiction writer)

Coronavirus Information

• OSU Updates
• OSU Graduate School updates
• Benton County Covid Information (including vaccines)
• US State Department
• US Centers for Disease Control and Prevention
• Johns Hopkins World Map
• ESRI Oregon and World Map
• Benny Beaver's advice.

OSU requires the use of face coverings in indoor spaces. Face coverings are defined as an item affixed to the face to help prevent the spread of the COVID-19 virus, including cloth garments that cover the nose and mouth and medical-grade disposable masks. This definition and policy exclude face coverings that incorporate a valve to facilitate easy exhalation, mesh masks, lace masks, face shields or other coverings with openings, holes, or visible gaps in the design, material or vents.

Stuff You Should Be Interested In:

• Wow! Great visualization from NASA here. It's not shader-based, but it does show how knowing graphics programming can really help in visual communication.

• My Zoom Office Hours during Finals Week will be:

  Monday	March 14	11:00 - 1:00
  Tuesday	March 15	11:00 - 1:00
  Wednesday	March 16	11:00 - 12:00

  After noon Wednesday, I have to stop answering test-ish questions because, for all I know, someone has the test open and is asking questions from it.
  Use the usual Zoom-room.
  Here is the Test #2 Review.

• Please go here and fill out a very short CS 457/557-specific survey. This really, really helps me evolve the course for next year. Thanks!

• The Student Learning Experience survey (replaces the eSETs) is out now through Sunday, March 13. Go to: https://beav.es/Student-Learning-Survey.

• Click here to see a video of the GPU particle system demo. This one was written using OpenCL, but the GPU code and the appearance on the screen is identical to the compute shader version.

• Click here to see the article on the making of Dune from this month's Computer Graphics World.

• Thanks to Andrew Price's Blender Guru newsletter, here is a link to a 2-hour long video on the visual effects in the movie Dune. According to the newsletter, here are the most important pieces:

  24:07	How they created the "shimmering" effect of the personal shield
  27:37	Why they used "Sand Screens" instead of greenscreens
  34:15	The thousands of explosions used in the night ambush
  42:26	Why dragonflies were the key to making the ornithopters feel real
  59:12	Solving the complex animation of the sandworm

• This CS 457/557 shader, find, helps you identify key parts of objects by their (s,t) or (x,y,z) coordinates: find.glib, find.vert, find.frag. It's useful to isolate certain parts of objects in order to do some effect on them without affecting the rest of the object.

• Here is the shadow demo video I had made for CS 450/550. I would have shown this program live in class if our classroom computer had been able to handle it.

• Because our classroom computer won't handle render-to-texture, I made a video of the demo I was going to show you. Here it is.

• In response to a question in class, I mentioned that there is a web site to help you pick color sequences that are colorblind-friendly. It is: http://colorbrewer2.org

• At the opening ceremonies for the 2022 Winter Olympics, they used a block of ice as a refractive rear-projection screen. See it here!

• The latest trailer for Pixar's new movie Lightyear is available here. The movie comes out June 17.

• Alert student Phillip Renaud-Tussey found this great VFX behind-the-scenes video. The really fun (and somewhat disturbing...) morphing of a human into a robot from the Transformers: Revenge of the Fallen movie is pretty amazing. It starts soon after the 9:00 minute mark.

• Remember I told you that we were trying to setup a Q&A session with the people who put the implosion together? Well, here it is! (It's about 35 minutes.)

• I have created a feedback page that allows you to send me anonymous comments (presumably on the class, but really anything). Click here to get into it.

• You can find a few shader source files here in Jan07.zip.

• In case you missed the stadium implosion, or if you want to see it over and over again (like I am doing), go to: https://oregonstate.edu/implosion. and play the video. The good stuff starts around the 52:00 minute mark. It's really fun to play it back at slow speed.

• Interviewing this year?
  There is a great book called: Programming Interviews Exposed: Secrets to Landing Your Next Job
  It prepares you for CS interview questions by revealing strategies and giving a nice review of data structures, recursion, and other programming information you might be asked about.
  Best of all, the OSU library has it in electronic form. Click here and then click on "Read Online".
  (I have a paper copy of it if you'd like to see it. Also, it's under $30 on Amazon

• Here are a couple of articles about job opportunities in 3D graphics entitled Realtime Skills Wanted and Visualizing the Future. However, know that these were co-sponsored by Unreal Engine, so clearly the conclusions are self-serving. However, they are interesting anyway.

  Also, here is a Podcast about How to Make Money doing 3D. The part about How to Apply for a 3D Job comes in at 15:32.

• Way cool demo of Unreal Engine's new MetaHuman Creator. (To get the full effect, put the video into Full Screen mode.) I would guess that they have a skin shader that takes in a ton of uniform variables.

• Our "signature object" this quarter is a tiger, in honor of this being the Year of the Tiger in the Chinese New Year calendar starting February 1. Get the OBJ files here:

  Vertices	Triangles	File
  1,178	2,113	tigerstsL.obj
  4,359	8,452	tigerstsM.obj
  25,541	50,712	tigerstsH.obj

  These OBJ files each have normals and texture coordnates.

  Just in case you've forgotten what a real tiger looks like, click here. (I took this picture at the Oregon Zoo.)

• Some museums have been photoscanning items in their collections and then have uploaded them to Sketchfab here. Check them out! They're free.

• Click here to see a Wired Magazine article on how virtual sets and the Unreal Game Engine were used on The Mandalorian.

• Click here to see the calendar of student events.

• For those of you interested in Pixar's production process, click here.

• Here is one of the most amazing cat animations I've ever seen!

• Here is a great source of texture images: https://3dtextures.me/

• Here are the shaders to perform A-D-S lighting: LightingForClass.zip.

• The magazine Computer Graphics World had an interesting article on Looking for a Job in CG.

• The OpenGL 4.6/GLSL 4.60 Reference Card can be found here.
  This isn't absolutely essential to print out, but it is really handy to have around.
  

• Check out these optical illusions. Very cool!

• Here is an Online 3D Model Converter, which you might find handy to convert 3D model files into different formats for your own use.

• Here is a Online Image-to-BMP file converter, which you might find handy to convert images you find into BMP files for use as textures.

What We Will Be Doing

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

CS 457/557 topics include:

• A more advanced look at the graphics pipeline
• A more advanced look at transformations, including non-linear
• Lighting
• Color
• Opacity
• 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
• GLSL Tessellation shaders
• GLSL Compute shaders
• Shaders for image manipulation
• Shaders for displacement and bump mapping
• Using shaders in visualization
• Hiding data in textures

Graphics Card Levels

If you are wondering what types of shaders your own graphics card supports, check this table. You can tell what shaders the card supports by looking at the Shader Model (or Shader Level) or what DirectX / OpenGL version it supports:

Shader Model	OpenGL	DirectX	Supports
3.0	2.x	9	Vertex, Fragment
4.0	3.x	10	Geometry
5.0	4.x	11	Tessellation, Compute

We will cover all of these different types of shaders.

Prerequisites

If you don't have any of these under your belt, I suggest that you look over the CS 450/550 class notes, which can be found here.

Professor

Office:	Kelley 2117 (2nd floor, south side)
Phone:	541-737-2542
Email:	mjb@cs.oregonstate.edu

Prof. Bailey's Zoom Office Hours:

Optional Textbook

Other Good References

Handouts and Recorded Videos

All required course materials for this class will cost you $0.00 (i.e., free)

LV = Lecture Video ; DV = Demo Video ; CS = Coming Soon

Week #	Topic
1	Introduction to CS 457/557	1pp	2pp	4pp	6pp	LV
1	Our Class Resources Page	HTML				LV
1	Project Notes for CS 457/557	1pp	2pp	4pp	6pp	LV
1	Teach Doesn't Work the Way You Think It Does	1pp	2pp	4pp	6pp	LV
1	History of Shaders	1pp	2pp	4pp	6pp	LV
1	Homogeneous Coordinates	1pp	2pp	4pp	6pp	LV
1	Shaders Notes from CS 450/550	1pp	2pp	4pp	6pp	LV-A	LV-B	LV-C	DV
1	Model vs. Eye/World Coordinates	--	--	--	--	--	--	--	DV
1	GLSL API	1pp	2pp	4pp	6pp	LV
2	Glman	PDF							DV
2	Mixing	1pp	2pp	4pp	6pp	LV
2	Morphing	1pp	2pp	4pp	6pp	LV			DV
2	Stripes, Rings, and Dots	1pp	2pp	4pp	6pp	LV-1	LV-2		DV
2	Texturing in GLSL	1pp	2pp	4pp	6pp	LV			DV
2	Displacement Textures	1pp	2pp	4pp	6pp	LV			DV
2	Noise	1pp	2pp	4pp	6pp	LV-1	LV-2	LV-3	DV
2	Noise Terrain	1pp	2pp	4pp	6pp	LV			DV
3	Bump Mapping	1pp	2pp	4pp	6pp	LV-1	LV-2		DV
3	Disco-ball Lighting	1pp	2pp	4pp	6pp	LV			DV
3	Dome Projection	1pp	2pp	4pp	6pp	LV			DV
3	Hyperbolic Geometry	1pp	2pp	4pp	6pp	LV			DV
4	Timer	1pp	2pp	4pp	6pp	LV
4	Lighting	1pp	2pp	4pp	6pp	LV
4	Screen Space Ambient Occlusion (SSAO)	1pp	2pp	4pp	6pp	LV			DV
4	Cube Mapping	1pp	2pp	4pp	6pp	LV			DV
5	Red-Cyan Stereographics	1pp	2pp	4pp	6pp	LV			DV
5	Test #1	HTML				LV
6	Image Manipulation	1pp	2pp	4pp	6pp	LV			DV
6	Render-to-Texture	1pp	2pp	4pp	6pp	LV			DV
6	Spectral Effects	1pp	2pp	4pp	6pp	LV			DV
6	Lens Effects	1pp	2pp	4pp	6pp	LV			DV
7	Geometry Shaders	1pp	2pp	4pp	6pp	LV-1	LV-2		DV
7	GLM	1pp	2pp	4pp	6pp	LV
7	A short GLM Primer	HTML
7	Shadows	1pp	2pp	4pp	6pp	LV			DV
7	The Science Behind Pixar	1pp	2pp	4pp	6pp	LV
8	Tessellation Shaders	1pp	2pp	4pp	6pp	LV-1	LV-2		DV
8	Modeling Wave Motion	1pp	2pp	4pp	6pp	LV			DV
8	Scientific Visualization using Shaders	1pp	2pp	4pp	6pp	LV-1	LV-2	LV-3	DV
8	The SuperQuad	1pp	2pp	4pp	6pp	LV			DV
9	GPU 101 (from the CS 475/575 notes)	1pp	2pp	4pp	6pp
9	Compute Shaders	1pp	2pp	4pp	6pp	LV			DV
9	Bump Mapping with Surface Local Coordinates	1pp	2pp	4pp	6pp	LV			DV
9	Advanced Bump Mapping: Normal Mapping	1pp	2pp	4pp	6pp	LV			DV
9	Advanced Bump Mapping: Parallax Mapping	1pp	2pp	4pp	6pp	LV			DV
10	Introduction to Vulkan	1pp	2pp	4pp	6pp	LV
10	Vulkan GLSL	1pp	2pp	4pp	6pp	LV
10	Vulkan Ray Tracing	1pp	2pp	4pp	6pp	LV
10	Efficient Ray-Triangle Intersections	1pp	2pp	4pp	6pp
10	Algorithmic Art	1pp	2pp	4pp	6pp	LV			DV
10	Introduction to RenderMan for GLSLers	1pp	2pp	4pp	6pp	LV
10	More Information	PDF				LV
10	Test #2 Review	HTML
--	Creating a Video Demo of a Graphics Project	1pp	2pp	4pp	6pp

---

Class Schedule

To see an Academic Year calendar, click here.

Class time is: Mondays and Wednesdays, 10:00 - 11:50.

Unless otherwise specified, all of our classes will be in LiNC 228.

No class on: January 17.

Note: this schedule is my best guess at where we will be when. It is only approximate.

Week #	Starting Date	Topics
1	Jan 3	Introductions. General course information. History of Shaders The graphics pipeline -- how it really works. Homogeneous coordinates. Coordinate systems: Model, World, Eye, NDC, Clip, Screen. Introduction to the OpenGL Shading Language (GLSL) Attribute, Uniform, and Varying variables GLSL built-in functions and variables glman The GLSL API The GLSLProgram C++ class Vertex shaders
2	Jan 10	Stripes in model vs. world coordinates The smoothstep( ) function Checkers Z-buffer pollution Geometry Morphing GLSL Textures: unsigned byte, floating point, 2D, 3D, parameters, binding, texture units, multitextures, sampler functions Using textures in the vertex shader: displacement maps Noise: Positional, Gradient. Cubic and quintic interpolation. Fractional Brownian Motion (FBM, 1/f), turbulence. glman Noise Reading a noise texture Using noise to create terrain
3	Jan 17	No class on January 17: Martin Luther King holiday. More noise Lighting Disco-ball Lighting Bump mapping
4	Jan 24	SSAO Morphing Timer Noise Terrain
5	Jan 31	Cube mapping Reflection, Refraction More fun with vertex shaders: Dome projection, Hyperbolic geometry. Test #1 Review Test #1 goes live at 12:01 PM on Wednesday, February 2 (Happy Groundhog's Day!). It closes at 23:59 on Sunday, February 6. It wil consist of 40 questions, on Canvas, multiple choice, open-notes.
6	Feb 7	Discuss the Final Project. Image Manipulation Render to Texture A Public Service Announcement: Valentine's Day is next week!
7	Feb 14	Happy Valentines's Day! The optics of rainbows The optics of diffraction The optics of lenses Geometry Shaders A one-page PDF project proposal is due to me by 23:59:59 on Wednesday, February 16. Turn it in on Teach.
8	Feb 21	Geometry Shaders Tessellation shaders Scientific Visualization using shaders
9	Feb 28	Compute Shaders Click here to see the Compute Shader particle system from the class notes. Advanced Bump Mapping: Surface Local Coordinates Advanced Bump Mapping: Normal Mapping Advanced Bump Mapping: Parallax Mapping
10	March 7	Algorithmic Art Vulkan and its GLSL Shaders Test #2 review. Test #2 goes live at 12:01 PM on Wednesday, March 16. It closes at 23:59 on Sunday, March 20. It wil consist of 40 questions, on Canvas, multiple choice, open-notes. More Information

Live Lectures

Every Friday, 12:00-2:00, I will be hosting a Live Lecture. We will go over some current materials and see live demos. It will be a time for you to also ask live questions. Attendance at the live session is optional. These sessions will be recorded (see below) in case you missed them.

Here is my Zoom-room.
If you need a passcode, use ZeldaDog

LLV = Live Lecture Video

Week #	Video
1	LLV
2	LLV
3	LLV
4	LLV
5	LLV
6	LLV
7	LLV
8	LLV
9	LLV
10	LLV

Projects

Project Turn-In Procedures

• Your project turnins will be electronic.

• Your electronic turnin will be done at http://engr.oregonstate.edu/teach and will consist of:
  
  1. A PDF report. The PDF file should include:
     • A cover page (name, email address, project name)
     • Images
     • Key snippets of code
     • The link to a Kaltura video or YouTube video or Loom video (or something else that I can open and view), demonstrating that your project does what the requirements ask for. Narrate your video so that you can tell me what it is doing.
  2. Source files of everything (.cpp, .glib, .vert, .frag, .geom, .tcs, .tes).

• You can zip up all the files you are turning in except the PDF. Please turn it in separately so I can run my gather-up-all-the-PDFs script.

• If you need to re-upload your prject to Teach, re-upload everything. Teach treats each upload as a brand new submission. It does not accumulate things that you have previously uploaded.

• Submissions are due at 23:59:59 on the listed due date.

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

• Your project will be graded and the score posted to your Canvas Grades If you lost any points, there will be a comment about it.

Bonus Days and Late Assignments

Projects are due at 23:59:59 on the listed due date, with the following exception:

Each of you has been granted 5 Bonus Days, which are no-questions-asked one-day extensions which may be applied to any project, subject to the following rules:

1. No more than 2 Bonus Days may be applied to any one project
2. Bonus Days cannot be applied to tests or quizzes
3. Bonus Days cannot be applied to the Final Project Proposal, the Final Project, or the CS 557 Paper Project

If you turn in a project three or more days late, your score is a zero.

If you turn in a project late and you don't have enough Bonus Days left to spend on it, your score is a zero.

You don't need to ask me, or even tell me, that you are using Bonus Days. Just turn your project in two-or-less days late. I have a script that will check your turn-in date and deduct the Bonus Days.

It is up to you to track how many Bonus Days you have used up. However, I also keep a spreadsheet of all of your Bonus Days. If you lose track, send me an email and ask.

Grading

Downloadable Files

Here is a folder with some of my favorite OBJ files.

Opening up the Sample2019.zip or SampleLinux.tar file will produce a folder full of all the other files you need. You do not need to go hunt the internet for any other files. Use the ones that have been given to you.

Windows Visual Studio 2019 Sample Program	Sample2019.zip	Un-zip and double-click on the .sln file, then select Build→Clean Solution, then select Build→Build Sample, then select Debug→Start Without Debugging
Linux Sample Program	SampleLinux.tar	Un-tar (tar xvf SampleLinux.tar), then cd SampleLinux, then make sample, then ./sample
Windows Visual Studio 2019 Sample Shaders Program	ShaderIntro2019.zip	Un-zip and double-click on the .sln file, then select Build→Clean Solution, then select Build→Build Sample, then select Debug→Start Without Debugging
Windows Visual Studio 2019 Shadows Program	Shadows2019.zip	Un-zip and double-click on the .sln file, then select Build→Clean Solution, then select Build→Build Sample, then select Debug→Start Without Debugging
Windows Visual Studio 2019 Vertex Buffer Object sample Program	VBO.zip	Un-zip and double-click on the .sln file, then select Build→Clean Solution, then select Build→Build Sample, then select Debug→Start Without Debugging
A color-picker program	ColorPicker.exe
Our own version of the sphere-drawing function	osusphere.cpp
C++ class to use GLSL shaders	glslprogram.h, glslprogram.cpp
Code to load an OBJ file	loadobjfile.cpp
glm Folder	glm.zip	Un-zip into your VS project folder
Keytime Animation C++ class	keytime.h, keytime.cpp
2D Noise Texture	noise2d.064.tex
3D Noise Texture	noise3d.064.tex
Kelley Engineering Center test image	kec.bmp
The find shader	find.glib, find.vert, find.frag
Shader code to produce the rainbow and heated-object color scales	colorscales.txt
Mars Panoram	MarsPanoram.zip

If you want to load a .obj file as part of one of your projects, incorporate the file loadobjfile.cpp into your own code. I usually use this by placing the .obj object into a display list:

// a global variable:
GLuint DL;

. . .

// do this in InitGraphics( ):
DL = glGenLists( 1 );
glNewList( DL, GL_COMPILE );
LoadObjFile( "spaceship.obj" );
glEndList( );

. . .

// do this in Display( ):
glCallList( DL );

Other Files

1. OpenGL/GLSL-related files
2. .obj files

3. Want to use the Nvidia Lobby in a cube map? Here are the files:
   nvposx.bmp
   nvnegx.bmp
   nvposy.bmp
   nvnegy.bmp
   nvposz.bmp
   nvnegz.bmp

4. Want to use the Kelley Engineering Center Atrium in a cube map? Here are the files:
   kec.posx.bmp
   kec.negx.bmp
   kec.posy.bmp
   kec.negy.bmp
   kec.posz.bmp
   kec.negz.bmp

Downloadable Executables

These executables are all loaded on the CGEL machines, but you can also get them here in case you want to run them on other Windows machines.

1. noisegraph.exe
2. glman.exe

You might also need these dlls:

1. glew32.dll
2. glut32.dll
3. libcd.lib
4. libcid.lib
5. msvcr71d.dll

Class Rules

It is important you feel safe and welcome in this course. If somebody is making discriminatory comments against you, sexually harassing you, or excluding you in other ways, contact the professor, your academic advisor, and/or report what happened at https://studentlife.oregonstate.edu/studentconduct/ reporting so we can connect you with resources.

Students With Disabilities

Accommodations for students with disabilities are determined and approved by Disability Access Services (DAS). If you, as a student, believe you are eligible for accommodations, but have not yet obtained approval, please contact DAS immediately at 541-737-4098 or at http://ds.oregonstate.edu. DAS notifies students and faculty members of approved academic accommodations and coordinates implementation of those accommodations. While not required, students and faculty members are encouraged to discuss details of the implementation of individual accommodations.

Link to the Code of Student Conduct

https://beav.es/codeofconduct

Student Bill of Rights

OSU has twelve established student rights. They include due process in all university disciplinary processes, an equal opportunity to learn, and grading in accordance with the course syllabus. See: https://asosu.oregonstate.edu/advocacy/rights

Religious Holidays

Oregon State University strives to respect all religious practices. If you have religious holidays that are in conflict with any of the requirements of this class, please see me immediately so that we can make alternative arrangements.

Life Events

As {John Lennon? Allen Saunders?} has said: "Life is what happens to you while you're busy making other plans". I care about you as a person. When life happens to you, send me an email and come see me. I might be able to help. But I surely can listen. You are not alone.

Reach Out for Success

University students encounter setbacks from time to time. If you encounter difficulties and need assistance, it's important to reach out. Consider discussing the situation with me or an academic advisor. Learn about resources that assist with wellness and academic success at http://oregonstate.edu/ReachOut. If you are in immediate crisis, please contact the Crisis Text Line by texting OREGON to 741-741 or call the National Suicide Prevention Lifeline at 1-800-273-TALK (8255)

Basic Needs

Any student who has difficulty affording groceries or accessing sufficient food to eat every day, or who lacks a safe and stable place to live, is urged to contact the Human Services Resource Center (HSRC) for support: hsrc@oregonstate.edu, 541-737-3747. The HSRC has a food pantry, a textbook lending program, and other resources to help. Furthermore, if you are comfortable doing so, please come talk with me. I will do everything I can do to help you.

University Housing & Dining Services has been piloting a meal program called Food for Thought. Using the extra food generated by campus dining locations, they create pre-packaged, balanced meal options available at no cost to Oregon State students who meet eligibility criteria determined by the Human Services Resource Center. For others, these packages are available for purchase at a reduced price.

Other Notes You Might Enjoy!

Grades 2-12 Outreach
	Scratch (including Scratch Jr.)
	TinkerCad
	Blender
	Processing
	SketchUp

Other Useful Online Graphics and Shader Information

• 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
  • Free OpenGL textbook rscfullbook.pdf
  • Another free OpenGL textbook http://openglbook.com/
  • The OpenGL 4.6 Reference Card can be found here.
    This is not absolutely essential to print out, but it can be really handy to have around.
  • OpenGL Man Pages: https://www.khronos.org/registry/OpenGL-Refpages/gl4/

• The GLUT Library:
  • PDF GLUT Documentation: https://www.opengl.org/resources/libraries/glut/glut-3.spec.pdf

• The GLUI Library:
  • OpenGL User Interface (GLUI) Documentation https://master.dl.sourceforge.net/project/glui/Documentation/GLUI%202/glui_manual_v2_beta.pdf?viasf=1

• GLSL:
  • The OpenGL 4.6 Reference Card, which includes a lot about GLSL, can be found here.
    This is not absolutely essential to print out, but they can be really handy to have around.

• WebGL:
  • Khronos group's WebGL Page: http://khronos.org/webgl
  • OSU WebGL site: http://cs.oregonstate.edu/~mjb/webgl
  • three.js: http://threejs.org/
  • JQuery user interface: http://api.jqueryui.com/
  • Ed Angel's WebGL site for his book examples: http://www.cs.unm.edu/~angel/BOOK/INTERACTIVE_COMPUTER_GRAPHICS/SIXTH_EDITION/CODE/WebGL/

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

• SIGGRAPH Online Computer Graphics Bibliography Database: https://liinwww.ira.uka.de/bibliography/Graphics/siggraph/index.html

• Game Information:
  • Game Developer: http://www.gamedev.net
  • Gamasutra: http://www.gamasutra.com

• 3D Models you can download:
  • Free 3D Models: http://thefree3dmodels.com
  • Level of Detail book support (free): http://lodbook.com/models
  • Florida State (free): http://people.sc.fsu.edu/~jburkardt/data/data.html
  • TurboSquid: http://www.turbosquid.com/Search/3D-Models/free/obj
  • Digimation (costs money): http://www.digimation.com

• Interesting visualization of the world's intercontinental networks https://www.infrapedia.com/

• WebGL isosurface of low-frequency 3D noise function http://kirox.de/test/Surface.html