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Simulation and Animation

Simulation and Animation. Animation Process. Animation and Simulation. Animation. Anima (lat.) – Atem , Seele , Leben. Object- positioning (Motion Control). Environment (Light, Camera). The art of breathing life into something. Shape (Object model). Overview.

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Simulation and Animation

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  1. Simulation and Animation Animation Process

  2. Animation and Simulation Animation Anima (lat.) – Atem, Seele, Leben Object-positioning (Motion Control) Environment (Light, Camera) The art of breathing life into something Shape (Object model)

  3. Overview • Animation: motioncapturedby a sequenceofimages • Classes: • Traditional animation: Film, Cartoons (Disney etc.) • Computer aidedanimation: support in traditional animation • Computer animation • Entireproduction in thecomputer • Modeling andanimationsoftware (Maya, 3D Studio Max) Modellierung Rendering Animation

  4. Overview • Temporal changeof: • Objects (position, orientierung, size, shape, color, etc) • Camera (position, direction, angle, focus, etc) • Illumination (position, direction, brightness, color) • Applicationareas: • Advertisement • Film • Computer games • Simulation • Visualization

  5. Overview • Relation to modeling • Static modeling of geometry  „Modeling“ along time axis • Relation to simulation • Physics based, realistic animation • Fluids, Clothes

  6. History • 1824 „Persistenz des Sehens“ [Roget]Perception of a visual stimuli with latency(cf. Phi-Phenomenon[Wertheimer 1911]) • 1830 Animation machines

  7. History • 1870 Chronophotography[Muybridge] • 1880 Film projector (Kinetoscope) [Edison]

  8. History • 1900 Pioners of animation: • Melbourne-Cooper 1899: First film animation • Blackton 1906: „Humorous phases of funny faces“ • Simple Stop-Animation of table drawings

  9. History • 1912 „Gertie, the Trained Dinosaur“5 Min. Comic

  10. History • Walt Disney: • 1922 Disney Studios • 1928 „Steamboat Willy“

  11. History • 1932 Stop-Motion Animation„King Kong“

  12. History • First computeranimationen • 1950 Springing ball in „Whirlwind“ [Adams, MIT] • 1965 „Sketchpad“ [Sutherland] • Um 1975: Skeleton KeyframingScript-Languagesforanimation

  13. History • 1976 „ Futureworld“first time 3D Graphic „wireframe“ in film • 1982 „Tron“ (Disney):first time real 3D Graphic in film • 1986 „Luxo Jr.“ (Pixar) • 1987 „Rendevouz à Montreal“ (Thalmann) • 1997 „Geri‘s Game“ (Pixar), Oscar 1998

  14. History Present http://movies.gerardbutlerangels.com/300.html

  15. Literature • Watt, Watt: Advanced Animation and Rendering Techniques, Addison-Wesley, 1992 • Vince: 3D Computer Animation, Addison-Wesley, 1992 • SIGGRAPH 2001 Course„PhysicallyBased Modeling“ (Witkin et al.) • Parent: Computer Animation, Morgan Kaufman, 2002 • Zum Storytelling: Vogler: The Writer‘s Journey, Pan 1999

  16. Overview • Animation classes • Handpaintedimages • Movingpiecesofpaper • Handcraftedmodels • Computer assistedanimation • Computer animation

  17. Overview • Steps in theanimationprocess • Storyboard • Voice-recording • Shooting • Scanning • Modelling • Texturing • Animation • Shading / Lighting • Rendering • Compositing

  18. Storyboard • The idea • Treatment • B/W handpaintings • Action template • Characterdevelopment • First film version • Check oftimingandcomprehensibility • Loose colorpaintings • Visual impressionofset, clothes • Lightingthescene

  19. Voice-recording • Unscripted dialoges of laities • Voices of professional actors • Good voices of laities

  20. Shooting • Shooting the real scene • Motion capture • Recording lightconditions • Bluescreening • Recording relative sizesanddistances

  21. Scanning • Cementmodelsofcharacters • Laser scanner • Repräsentation aspointcloud • Different triangulations • Low-res, high-res

  22. Modelling • Decomposition in sub-objects • Generation ofnewobjectsfrombaseobjects • Objecthierarchies • Software • Amapi 3D www.eovia.com • Maya (Builder) www.aliaswavefront.com

  23. Texturing • Surfacecharacteristicsofobjects • Image: colorinformation • Bumpmap: structure • Specularmap: reflectionattributes

  24. Animation • Skeleton withjoints • Interactive model • Key-framing • Inverse kinematics • Motion capturing • Refinementofmovements

  25. Animation • Alternative techniques • Physical dynamics engine • Artificial intelligence

  26. Shading / Lighting • Shader • Representingsurfacecharcteristics • Simulation ofwood, glas, metal, etc. • Lighting • Lightingthesceneas in real film • Evtl. bymeansofrecordeddata • Key light • Ambientlight • Specularlight • Bouncelight

  27. Rendering • High qualityframes • Additional specialeffects • Motion blur, lensflares • 6-90 h computing time per frame • Speed-upby render farms • Software PixarRenderman • Oscar winner • Terminator 3, Jurassic Park 1-3, Toy Story 1+2,Star Wars: Episode I-III, The Matrix 1-3, Fight Club, Gladiator…

  28. Rendering High qualityrendering

  29. Compositing • Blending ofgraphicsand film • Blending effects • Post-production

  30. Compositing

  31. Compositing

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