Animation Programming Techniques
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The document discusses various techniques for implementing animation in computer games. It begins by outlining the goals of animation and then describes different technical approaches like cel animation, billboards with animated textures, rigid hierarchical animation, vertex animation, and skinned animation. It also covers related topics like using animation for data compression, blending animations, physics-based animation, and the role of animation in artificial intelligence for games.
Animation Programming Techniques
- 3. انواعروشهایپیادهسازیانیمیشندربازی • Cel Animation • Billboards with animated textures • Rigid Hierarchical • Vertex Animation • Skinned Animation
- 6. 3D Animation Rigid Hierarchical Animation
- 7. Per Vertex Animation / Morph Target
- 8. Facial Morph Demo Video
- 10. Skinned Animation • Software Skinning • Hardware Skinning (GPU shaders)
- 12. زماندرانیمیشن • Pose Interpolation / Continuous Time • Time unit (seconds/frames) • Frame/Sample ttt = 0.2 ttt = 0.8 ttt = 1.3 Keyframe 1 Keyframe 2 Keyframe 3
- 13. قالبدادهایبرایانیمیشن • Joint 1 o Keyframe 1 Translation • x, y, z Orientation • x, y, z, w Scale • x, y, z o Keyframe 2 Translation • ..... o .... • Joint 2 o ....
- 15. Animation Retargeting • Real-time motion retargetting to highly varied user created morphologies (Spore) • http://chrishecker.com/Real-time_motion_retargeting_to_highly_varied_user-created_morphologies • Feature points based facial animation retargetting • http://dl.acm.org/citation.cfm?id=1450621
- 16. Havok Animation Retargeting Video
- 17. Metachannels • Events o Time = 0.5 footstep left o Time = 1.5 footstep right o ... • ...
- 18. Animation Blending LERP Blending • Temporal Interpolation • Motion Continuity (Cross Fading) • Directional Locomotion o Targeted Movement o Pivotal Movement • Complex LERP Blend o Generalized one dimensional o Simple Two dimensional o Triangular Two dimensional o Generalized Two dimensional
- 19. Blending • Partial skeleton blending • Additive blending o Stance variation o Locomotion noise o Aim and look at o Overloading time axis
- 22. Blend Trees
- 23. Blend Tree
- 24. UDK Blend Tree Video
- 25. Post Processing • Procedural Animation • Inverse Kinematics • Ragdolls
- 26. Ragdolls Ragdolls in Diablo 3 (box2d.googlecode.com/files/GDC2012_ErinCatto_Ragdolls.pdf)
- 27. Leg IK
- 28. Animation Pipeline • Clip decompression and pose extraction • Pose blending • Global pose generation • Post-processing • Recalculation of global poses • Matrix palette generation
- 30. کمتر حافظه از استفاده–سازی فشرده • Channel Omission • Quantization o Scalar Quantization (Jonathan Blow: http://number- none.com/product/Scalar%20Quantization/index.html) • Sample Frequency and Key Omission • Curve Based Compression (B-Splines, Granny) • Selective Loading and Streaming
- 31. Curve Based Compression (B-Splines) 30fps -> 90 frames -> 90 * 32bits = 27180 bits Curve Fitting -> 7 data points -> 7 * 32bits = 224 bits t = 3 sec q
- 32. CPU Cache Bitsquid Engine (Low Level Animation System) http://bitsquid.blogspot.com/2009/11/bitsquid-low-level-animation-system.html http://bitsquid.blogspot.com/2011/10/low-level-animation-part-2.html
- 33. Multithreaded Animation • Intel Horsepower demo: http://software.intel.com/en-us/articles/horsepower-source-code-download/
- 34. Intel Horsepower Demo Single Threaded Animation
- 35. Intel Horsepower Demo Multithreaded Animation
- 36. Animation Layering Face Layer - Partial Hand Layer - Partial Hair Layer - Partial Base Layer - Full Body Run Randomness Layer - Additive Weapon Layer - Partial Breathing Layer - Additive Animation and Player Control in Uncharted 1 & 2, Travis McIntosh, GDC 2010
- 38. Dynamic, data-driven character control with adjustable balance, Dynamo http://graphics.cs.williams.edu/papers/DynamoVGS06
- 39. Dynamo Video - Adaptation
- 40. Dynamo Video - Balance
- 41. Dynamo - Boxing
- 42. Dynamo - Failure
- 43. Dynamic Response for Motion Capture Animation http://graphics.cs.ucr.edu/projects/dynResp/mocsim2.html
- 44. Dynamic Response
- 45. Dynamic Motion Synthesis • Natural Motion (Endorphin, Euphoria) http://naturalmotion.com • Games o Read Dead Redemption o GTA IV o Star Wars: The Force Unleashed
- 46. Natural Motion - Euphoria
- 47. پایهفناوری
- 49. Dynamic Motion Synthesis – Read Dead Redemption
- 50. Dynamic Motion Synthesis – GTA IV
- 51. Dynamic Motion Synthesis – Star Wars, Force Unleashed
- 52. Parametric Motion Graphs •ذخیرهدادههایحرکتی،عمدتاازMotion Capture •آنالیزدادههاوساختMotion Graph •انجامجستجویreal-timeدرهنگاماجرایبازی
- 53. Motion Graphs Research Motion Graphs http://research.cs.wisc.edu/graphics/Papers/Gleicher/Mocap/mograph.pdf Parametric Motion Graphs http://pages.cs.wisc.edu/~heckr/Papers/PMGFullPaper.pdf
- 54. Parametric Motion Graphs Demo Video
- 56. Animation-Driven Locomotion Animation Driven Locomotion for Smoother Navigation (GDC 2012) Bobby Anguelov AI Programmer IO Interactive Gabriel Leblanc AI Programmer, Eidos Shawn Harris Senior Programmer, Big Huge Games
- 57. میانافزارهایانیمیشن • Natural Motion, Morpheme • Autodesk, HumanIK • RAD Game Tools, Granny • Havok Animation/Behavior • Chemical Games, Alienmotion
- 58. Animation Middleware - Alienmotion
- 59. • Game Engine Architecture, Jason Gregory • Bisquid.se • Game Programming Gems Series • AI Game Programming Wisdom Series • gamasutra.com سایرمنابع