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CS380: Computer Graphics Introduction Sung-Eui Yoon ( ) Course URL: http://sgvr.kaist.ac.kr/~sungeui/CG About the Instructor Notable recognitions Co-chairs at ACM Symp. on Interactive 3D Graphics and Games Test-of-time

  1. CS380: Computer Graphics Introduction Sung-Eui Yoon ( 윤성의 ) Course URL: http://sgvr.kaist.ac.kr/~sungeui/CG

  2. About the Instructor ● Notable recognitions ● Co-chairs at ACM Symp. on Interactive 3D Graphics and Games ● Test-of-time award at High Performance Graphics ● Interns/post.doc/collaborations at Disney, Adobe, AMD, Pixar ● Produced two professors on rendering (GIST) and related topics 2

  3. Research: Scalable Ray Tracing, Image Search, Motion Planning ● Designing scalable graphics and geometric algorithms to efficiently handle massive models on commodity hardware Image search Motion Photo-realistic planning rendering Paper and video: https://sgvr.kaist.ac.kr/category/papers/paper- international/ 3 YouTube videos: http://www.youtube.com/user/sglabkaist

  4. Course Information of CS380 Instructor: Sung-eui Yoon Email: sungeui@gmail.com Office: 3432 at CS building Office hours: Right after class time (or by appt.) KLMS discussion page: Use this one for sharing Q&A with other students, instead of personal communication (e.g., email) to TAs KLMS: homework submissions Course webpage: http://sglab.kaist.ac.kr/~sungeui/CG/ 4

  5. Class Time ● Date: every MW ● Time: 10:30am ~ 11:45am ● 4 credit course ● OpenGL courses will be given by TAs 5

  6. TAs ● TA email address: cs380ta@gmail.com ● Use KLMS board first ● InKyu Ahn ( 안인규 ), MinCheol Kang ( 강민철 ) ● Office: E3-1, 3439 호 ● HeeChan Shin ( 신희찬 ) ● Office: E3-1, 3446 호 ● InYoung Cho ( 조인영 ), JaeYoon Kim ( 김재윤 ) ● Office: E3-1, 3443 호 6

  7. Prerequisites ● Basic knowledge of linear algebra ● E.g., matrix multiplication and inversion ● Some level of programming skill ● Require you to know or self-study C-like language (e.g., C and C++) ● If you are unsure, consult the instructor at the end of this class ● You can check the programming assignments of the prior homepage 7

  8. Overview ● We will discuss various parts of computer graphics Simulation & Rendering Modelling Image Computer vision inverts the process Image processing deals with images 8

  9. Application of Computer Graphics ● Games ● Movies and film special effects ● Product design and analysis ● Medical applications ● Scientific visualization 9

  10. Games 2D game 3D shooting game 10

  11. Large-Scale Open World w/ High Quality Rendering ● Witcher 3 ● Used its own engine 11

  12. High Quality Mobile Games ● Big game industry at Korea ● Lineage 2 – Revolution ● Based on Unreal engine 12

  13. Movies and Film Special Effects Toy story Matrix 13

  14. 3D Movies Avatar 14

  15. 3D TV Samsung 3D TV 15

  16. Head-Mounted Display (HMD) for VR 16

  17. HoloLens for Augmented Reality (AR) MS 17

  18. Killer App. For AR 18

  19. Product Design and Analysis ● Computer-aided design (CAD) 19

  20. Medical Applications ● Visualizing data of CT, MRI, etc Rapidia homepage 20

  21. Medical Applications ● Visualizing data of CT, MRI, etc Wikipedia Mouse skull (CT) 21

  22. Medical Applications 벤처 성공으로 유명세 타 … 신 교수는 1990 년 대학원 학생들과 실험실 벤처 ‘3D 메드 ’ 를 창업했다 . 좋은 기술을 갖고 있었기 때문에 더 큰 벤처기업이 인수했고 , 몇 년 전에 인수한 벤처기업이 코스닥 주식시장에 상장됐다 . 당시 주식을 그대로 갖고 있었던 대학원생들은 꽤 돈을 벌었다고 한다 . 기자가 넉넉하게 잡아 “ 몇 천만 원쯤 벌었나요 ” 라고 물었더니 신 교수는 “ 집 한 채 샀지요 ” 라고 에둘러 답했다 … . 22

  23. Scientific Applications ● Weather visualization LLNL 23

  24. Sound Rendering 24

  25. Faithful Data Generation for Deep Learning ● Apply CG techniques for generating realistic data for deep learning, which require lots of data GPU Training data for learning Realistic modeling, rendering & simulation 25

  26. Topics ● Mathematical tools ● Ray tracing ● 3D models and ● Global illumination interaction ● Curves and surfaces ● Hidden surface ● Simplification and removal levels of detail ● Rasterization ● Collision detection ● Lighting and shading ● Graphics hardware, etc ● Shadows ● Texture mapping 26

  27. Mathematical Tools ● Homogeneous coordinates ● Vectors ● Planes ● Frames ● Transformations 27

  28. 3D Models and Interaction ● Loading and view models ● Picking and selection ● Modeling a trackball ● Virtual reality (VR) is all about interaction  a  b axis 28

  29. Hidden Surface Removal ● Classic problem ● BSP trees ● Ray casting ● Depth buffering 29

  30. Rasterization ● Clipping ● Scan conversion 30

  31. Lighting and Shading ● Flat, gouraud, and phong shading ● Empirical and physically- based illumination models ● BRDFs 31

  32. Shadows ● Shadow volumes ● Shadow maps Images courtesy of Stamminger and Drettakis 02 Umbra Penumbra 32

  33. Texture Mapping ● Surface parameterization ● Mipmaps and filtering ● Reflection and environment mapping 33

  34. Ray Tracing ● Object intersection ● Reflection and refraction ● Depth-of-field, motion blur, glossy reflections, soft shadows 34

  35. Global Illumination ● Rendering equation ● Path tracing, photon mapping, radiosity Images courtesy of Caligari (www.caligari.com) 35

  36. Curves and Surfaces ● Bezier curves and B- splines ● NURBS and subdivision surfaces ● Parametric solids 0-levels 1-level 2- 3- 4- 5- levels levels levels levels 36

  37. Simplification and LOD ● Levels of detail ● Progressive meshes 82 million triangles 37

  38. Graphics Hardware ● History ● Architecture ● Shading languages ● Future 38

  39. Animation ● Keyframing ● Parameteric splines ● Motion capture ● Simulation 39

  40. Textbook ● Rendering ● Sung-eui Yoon ● 1 st Edition, 2018 ● Freely available https://sgvr.kaist.ac.kr/~sungeui/render/ 40

  41. Reference – OpenGL ● OpenGL Programming Guide ● Addison-Wesley Professional ● Ver 4.3 is ordered to KAIST library ● Version 1.1 is available at internet and the course webpage ● Reference book is also available http://www.glprogramming.com/blue 41

  42. Reference ● Fundamentals of Computer Graphics ● Peter Shirley et al. ● AK Peters ● Available at the KAIST library 42

  43. Resource on Physically-based Rendering ● Reference ● Physically based renderig, Matt Pharr et al. ● Advanced Global Illumination, Philip Dutre et al. 2 nd edition ● Realistic Image Synthesis Using Photon Mapping, Henrik Jensen ● Realistic Ray Tracing, 2 nd edition, Peter Shirley et al. 43

  44. Other Reference ● Technical papers ● Graphics-related conference (SIGGRAPH, etc) ● http://kesen.huang.googlepages.com/ ● Course homepages ● Google or Google scholar 44

  45. Program Assignments (PAs) and Quiz ● 6 or 7 PAs ● Viewing and manipulating 3D models with OpenGL ● Rasterization and clipping ● Texture mapping and lighting ● Raytracing ● Their difficulty is growing! ● Require you to know or self-study C/C++ ● Quiz ● We will frequently have quiz sessions, which also serve as attendance check 45

  46. Homework for Each Class ● Go over the next lecture slides before the class ● Just 10 min ~ 20 min for this should be okay ● Two video summary submission every week ● Preparation for poster presentation ● Question submissions two times during the whole semester 46

  47. Poster Presentation ● Related to research activity, which is useful for your long-term career ● Make a team of 2 persons ● Identify a paper and present poster presentation near the end of the semester ● Discuss the paper among the team for better understanding 47

  48. Grading ● Mid-term: 20% Final-term: 30% Quiz and assignments: 40% Poster presentation: 10% ● Late policy ● No score for late submissions ● Submit your work before the deadline! 48

  49. Class Attendance Rule ● Late two times  count as one absence ● Every two absences  lower your grade (e.g., A-  B+) ● To check attendance, I’ll call your names or take pictures ● If you are in situations where you should be late, notify earlier w/ proper certificate or official documents 49

  50. Honor Code and Etiquette ● Collaboration encouraged, but assignments must be your own work ● Cite any other’s work if you use their codes ● If you copy someone else’s codes, you will get F ● We will use a code copy checking tool to find any copy ● Classroom etiquette ● Help you and your peer to focus on the class ● Turn off cell phones ● Arrive to the class on time ● Avoid private conversations ● Be attentive in class 50

  51. Official Language in Class ● English ● I’ll give lectures in English ● I may explain again in Korean if materials are unclear to you ● You are also recommended to use English, but not required 51

  52. Next Time... ● Screen & world space ● Basic OpenGL usage 52

  53. About You ● Name ● What is your major? ● Previous graphics experience ● Any questions? ● Online submission within today ● https://forms.gle/aHT8abgjaYAsV2wDA ● You can also find the link at the course homepage 53

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