TERM 1, 2008/2009 INFOGR: Graphics Tuesdays, 11-13h, & Thursdays, 15-17h, AARD-Klein As last year, this course will be recorded. Below you find the slides and recordings of each lecture. Recordings are in QuickTime format and come in two resolutions: 640x480 for viewing on desktops and laptops and 320x240 which contain the same content but have been optimized for viewing on mobile devices such as the Apple iPod (hence the bigger data size). For the latter ones, there is also a blog where you can subscribe to an RSS feed or via iTunes in order to download the recordings (lower resolution) automatically to your iPod. Note: The blog is just for subscription but does not contain any additional material. Don't rely on the recordings as we can not guarantee to maintain this service throughout the whole semester (i.e. if for whatever reason we are not able to offer a recording for a particular talk, don't come complaining). Home · Schedule · Lecture · Tutorials · Practicals · Exams & grading

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INTRODUCTION AND RAY TRACING BASICS (Lecture 1, Thu, Sept 4): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (60MB) ] [ 320x240 (66MB) ] [online streaming] Part 2 [ quicktime 640x480 (28MB) ] [ 320x240 (36MB) ] [online streaming] Note: Sorry for the bad audio quality. Unfortunately, there have been some problems with the microphone during the recording. I was able to increase audio quality a little bit doing some postprocessing. People who have downloaded the file before Monday, Sept. 8, 9am, should replace it with this version. Recommended reading: Chapter 1 from the book gives a general introduction. Chapter 3.1 till 3.3 are not covered in the lecture directly, but worth reading in order to get more familiar with the topic and related terms, esp. chapter 3.2 which is relevant for the programming labs. For the programming labs it might also be worth browsing Chapter 10 till 10.3.1 (don't worry if you don't understand all details yet, but it might help understanding the basic ideas if you have a rough look at it). VECTORS AND CURVES (Lecture 2, Tue, Sept 9): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (51MB) ] [ 320x240 (64MB) ] [online streaming] Part 2 [ quicktime 640x480 (49MB) ] [ 320x240 (62MB) ] [online streaming] Recommended reading: Chapter 2 till 2.6 from the book. Note: Chapters 2.1-2.3 are not discussed in the lecture directly, but we assume that you are familiar with the content. You may skip chapter 2.5.1. CURVES, SURFACES, AND SHADING (Lecture 3, Thu, Sept 11): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (48MB) ] [ 320x240 (58MB) ] [online streaming] Part 2 [ quicktime 640x480 (41MB) ] [ 320x240 (51MB) ] [online streaming] Recommended reading: Chapter 2 from the book (esp. 2.7-2.9 and 2.11). For the ray tracing part, browsing chapter 10 till 10.3 again might be a good idea. Diffuse and Phong shading are explained in chapter 9.1 (esp. 9.1.1) and 9.2, respectively. MATRICES AND DETERMINANTS (Lecture 4, Tue, Sept 16): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (55MB) ] [ 320x240 (62MB) ] [online streaming] Part 2 [ quicktime 640x480 (39MB) ] [ 320x240 (46MB) ] [online streaming] Recommended reading: Although the material was presented differently in the lecture, it is recommended to read chapter 5 of the book, since the basics about matrices, etc. are very important and needed in the following lectures. (But you may skip 5.2.6 and 5.2.7) LINEAR AND AFFINE TRANSFORMATIONS (Lecture 5, Thu, Sept 18): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (48MB) ] [ 320x240 (60MB) ] [online streaming] Part 2 [ quicktime 640x480 (56MB) ] [ 320x240 (65MB) ] [online streaming] Recommended reading: Chapter 6 (Transformation matrices) from the book. Section 6.1.6 may be skipped. Information on how to construct a basis from a single vector can be found in section 2.4.6, which I assume all of you already read after the 2nd lecture :) PERSPECTIVE PROJECTION (Lecture 6, Thu, Sept 23): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (69MB) ] [ 320x240 (67MB) ] [online streaming] Part 2 [ quicktime 640x480 (50MB) ] [ 320x240 (55MB) ] [online streaming] Recommended reading: Chapter 7 (Viewing) from the textbook. HIDDEN SURFACE ELIMINATION (Lecture 7, Thu, Sept 25): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (83MB) ] [ 320x240 (82MB) ] [online streaming] Part 2 [ quicktime 640x480 (33MB) ] [ 320x240 (38MB) ] [online streaming] Recommended reading: This lecture is covered by Chapter 8 (Hidden Surface Elimination) in the textbook. For backface culling, please refer to the lecture notes since it is only marginally covered in the book (in chapter 12.4, page 265). TRIANGLE RASTERIZATION AND SHADING (Lecture 8, Tue, Sept 30): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (41MB) ] [ 320x240 (50MB) ] [online streaming] Part 2 [ quicktime 640x480 (30MB) ] [ 320x240 (37MB) ] [online streaming] Recommended reading: In the lecture, we addressed only polygone and triangle rasterization and used a different approach than covered in the book. Nevertheless, it doesn't hurt to browse chapter 3.5 (line drawing) and 3.6 (triangle rasterization). The latter one also contains a little bit of information about Gouraud shading. Linear interpolation is covered in chapter 2.10, diffuse shading and phong shading are discussed in chapter 9.1 and 9.2, respectively. Again, we discussed a different approach not covered in the book (cf. lecture notes). RAY TRACING (Lecture 9, Tue, Oct 7): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (50MB) ] [ 320x240 (60MB) ] [online streaming] Part 2 [ quicktime 640x480 (64MB) ] [ 320x240 (70MB) ] [online streaming] Recommended reading: This lecture basically completes some "loose ends" about Ray Tracing that haven't been covered in the lecture so far, in particular: Ray/triangle intersection (book, section 2.11 and 10.3.2), refraction (book, section 10.7), instancing (book, section 10.8), constructive solid geometry (book, section 10.10), faster ray tracing (book, section 10.9). For octrees, please refer to the lecture notes since they are not covered in the textbook. TEXTURE MAPPING (Lecture 10, Thu, Oct 9): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (46MB) ] [ 320x240 (54MB) ] [online streaming] Part 2 [ quicktime 640x480 (54MB) ] [ 320x240 (67MB) ] [online streaming] Recommended reading: This lecture is covered by chapter 11 of the book. The tutorial on "Teaching Texture Mapping Visually" (PDF, HTML) by Rosalee Wolfe from DePaul University contains some nice illustrations of different approaches. Not all of this is covered in the lecture, but the images might help understanding some of the techniques we discussed. RADIOSITY and SHADOWS (Lecture 11, Tue, Oct 14): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (48MB) ] [ 320x240 (58MB) ] [online streaming] Part 2 [ quicktime 640x480 (43MB) ] [ 320x240 (55MB) ] [online streaming] Recommended reading: Radiosity is hardly covered in the textbook, but the lecture notes and the tutorial that I mentioned at the beginning should be enough to understand the basic concepts. In addition, you can browse the Education Slide Set provided on the SIGGRAPH server. The same goes for Shadows, i.e. they are hardly covered in the textbook (although you find some information on shadow maps and soft shadows in chapter 11.8 and 10.11.2, respectively). The stencil buffer tutorial is recommended background reading (but try to focus on principles, and not on details/code, and don't worry if you don't understand it completely. Browse, don't memorize, the 50 pages). It also covers fake shadows in section 4 and 5 and contains little info on soft shadows in section 6.4. FULL GRAPHICS PIPELINE and CLOSING REMARKS (Lecture 12, Thu, Oct 16): Slides: [ slides ] [ slides with annotations ] Recordings: Part 1 [ quicktime 640x480 (41MB) ] [ 320x240 (51MB) ] [online streaming] Part 2 [ quicktime 640x480 (60MB) ] [ 320x240 (60MB) ] [online streaming] Recommended reading: Chapter 12 in the textbook. The Sutherland-Hodgman and the Weiler-Atherton algorithm are not covered in the book, but the lecture notes should be sufficient to understand them.

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(c) Wolfgang Hürst