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Computer Graphics S S 2014

Computer Graphics S S 2014. Rüdiger Westermann Lehrstuhl für Computer Graphik und Visualisierung. Schedule. Lecture : Mon . 2 pm – 3.30 pm , Interims HS2 Thu . 2 pm – 3.30 pm , Interims HS2

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Computer Graphics S S 2014

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  1. Computer Graphics SS 2014 Rüdiger Westermann Lehrstuhl für Computer Graphik und Visualisierung

  2. Schedule • Lecture: Mon. 2 pm – 3.30 pm, Interims HS2Thu. 2pm – 3.30 pm, Interims HS2 • Lectureslides online athttp://wwwcg.in.tum.de/teaching/teaching/summer-term-14/computer-graphics/material.html • Password secured .zipfiles (passwd: ‘cg2014‘) • Nolecture on 10.4.2014 • Writtenexam: 75-90 minutes

  3. Computer graphics - general infos • Lecture slides • Lecture slides available beforehand • Contain links to additional material • Lecture attendance is highly recommended • On-board examples, sometimes similar to what is asked in the exam • Answers to specific questions increase understanding • Hints on “important” sub-topics • Discussion of previous exams throughout the lecture

  4. Computer graphics - general infos • Check the library and the web for literature • Recommended books: • Foley, Van Dam, Feiner, Hughes: Computer Graphics: Principles and Practice, Addison-Wesley, 3rd edition • Watt, Watt: Computer Graphics, Addison-Wesley • Glassner: Principles of digital image synthesis, Morgan Kaufman • Encarnaçao, Klein, Strasser: GraphischeDatenverarbeitung, 4. Auflage, Oldenburg Verlag • Griebel, Bungartz, Zenger: Computer Graphik, Vieweg+Teubner Verlag

  5. Animation Modelling Imaging Visualization Computer graphics – areas GeometricModelling The representation and efficient modification of geometric shape on a computer Animation and simulation The generation and representation of dynamic imagery on a computer (Rendering) Image Synthesis The display of models and scenes on a computer Visualization Methods to visually represent the information content within large-scale multi-dimensional and/or multi-modality data sets Imaging and computer vision The manipulation of images and the extraction of object specific information from images

  6. Photorealistic image synthesis • Algorithmsforimage synthesis, i.e. rendering algorithms:Given a digital model on thecomputer, whatkindofoperationshavetobeperformedtogenerate a photorealisticimageofthismodel • A photorealisticimageisonethatcannotbedistinguishedfrom a photographofthereal object

  7. Real or CG? • http://area.autodesk.com/fakeorfoto

  8. Realtime CG? • http://www.youtube.com/watch?v=dNuIzOxOfn8

  9. Photorealistic image synthesis • Ingredients and prerequisitesforimagesynthesis • Scene description • Objects‘ shape • Objects‘ appearance • Color andtexture • Reflectionproperties • Light sourceproperties • Intensity • Color • Direction • Physicsof light interaction

  10. Image synthesis – thewireframe

  11. Image synthesis – dephculling/attenuation

  12. Image synthesis – colorvectors

  13. Image synthesis – hiddenlineremoval

  14. Image synthesis – constantshading

  15. Image synthesis – flat shading

  16. Image synthesis – Phong-shading

  17. Image synthesis – bicubicmodels, advancedillumination

  18. Image synthesis – texturemapping

  19. Image synthesis – bumpmapping

  20. Image synthesis – reflectionmapping

  21. Computer graphics – this course • Algorithmsforimagesynthesis • Given a model on thecomputer, whicharethealgorithmswecanusetogenerate a realisticimageofthis model. • Problems discussedrangefrommodel representationsanddatastructurestolightsimulationandgraphicshardware.

  22. Part 1: imagesynthesis – fundamentals • Modeling • Polygonal objects • Color • Whatis? • Light interaction • Illumination • Reflection • Refraction

  23. Part 2: imagesynthesis – ray-tracing • Ray-tracing • Concept & technique • Transformations • Lighting/Shading • Optimization • Sampling

  24. Part 3: imagesynthesis - graphics APIs • Rasterizationbasedrendering • Rendering pipeline • Projectivetransforms • Rasterization • Programmabilityand GPUs

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