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Computer Animation Rick Parent Computer Animation Algorithms and Techniques Figure Animation.

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Presentation on theme: "Computer Animation Rick Parent Computer Animation Algorithms and Techniques Figure Animation."— Presentation transcript:

1 Computer Animation Rick Parent Computer Animation Algorithms and Techniques Figure Animation

2 Computer Animation Rick Parent Vitrual Human Representation Body Modeling Geometric representation level of detail DoFs accessories: hair, clothes rigid v. flexible Activities upper body tasks: reaching, grasping locomotion: walking, running body language: stance, gestures Secondary motion upper body tasks: reaching, grasping locomotion: walking, running body language: stance, gestures

3 Computer Animation Rick Parent Body Modeling - Geometry Polygonal representations

4 Computer Animation Rick Parent Body Modeling - Geometry

5 Computer Animation Rick Parent Body Modeling - Geometry Subdivision surfaces

6 Computer Animation Rick Parent Body Modeling - Geometry Implicit surfaces

7 Computer Animation Rick Parent Body Modeling - Geometry Body scan http://www.cyberware.com/

8 Computer Animation Rick Parent Animation– Rigid Links Use FK or IK to animate Hierarchical animation Interpolate between key frames

9 Computer Animation Rick Parent Animation – Skeleton Driven http://www.emeraldinsight.com/journals.htm?articleid=1532798&show=html

10 Computer Animation Rick Parent Animation – Skeleton Driven

11 Computer Animation Rick Parent Animation– Layered Approach

12 Computer Animation Rick Parent Reaching Modeling the arm The shoulder joint The hand Coordinated movement Obstacles Strength

13 Computer Animation Rick Parent Modeling the Arm Also used is 3-2-2 DoF

14 Computer Animation Rick Parent Modeling the Arm

15 Computer Animation Rick Parent Modeling the Arm Determine plane of motion (3 DoF) then 1-1 DoF arm Then 2/3 DoF wrist

16 Computer Animation Rick Parent Modeling the Shoulder

17 Computer Animation Rick Parent Reaching

18 Computer Animation Rick Parent Approximating Human Reaching Volumes Using Inverse Kinematics I. Rodrígueza, M. Peinadoa, R. Boulicb, D. Meziata inma@aut.uah.es, manupg@aut.uah.es, ronan.boulic@epfl.ch, meziat@

19 Computer Animation Rick Parent Modeling the Hand

20 Computer Animation Rick Parent Grasping

21 Computer Animation Rick Parent Grasping

22 Computer Animation Rick Parent Grasping Grasp planning for digital humans Faisal Amer Goussous, U. of Iowa

23 Computer Animation Rick Parent Reaching – close v. distant Extended grasping behavior for Autonomous Human Agents R. Max, R. Boulic, D. Thalmann

24 Computer Animation Rick Parent Mechanics of locomotion walk cycle v. run cycle Pelvic transport Pelvic rotation Pelvic Tilt Knee flexion Ankle and toe joints

25 Computer Animation Rick Parent Anatomy of the Walk

26 Computer Animation Rick Parent Anatomy of the Run

27 Computer Animation Rick Parent Pelvic transport

28 Computer Animation Rick Parent Pelvic rotation over foot

29 Computer Animation Rick Parent Pelvic rotation around hips

30 Computer Animation Rick Parent Motion of pelvic

31 Computer Animation Rick Parent Pelvic tilt

32 Computer Animation Rick Parent Knee bend to allow tilt

33 Computer Animation Rick Parent Ankle and Toe bend

34 Computer Animation Rick Parent Walk Data

35 Computer Animation Rick Parent Walk Data

36 Computer Animation Rick Parent Walk Data

37 Computer Animation Rick Parent Walk Data

38 Computer Animation Rick Parent Walk Data

39 Computer Animation Rick Parent Using Dynamics in the Walk

40 Computer Animation Rick Parent Using Dynamics in the Walk

41 Computer Animation Rick Parent Using Dynamics in the Walk

42 Computer Animation Rick Parent facial animation Expressions v. speech

43 Computer Animation Rick Parent facial animation Parameterized facial attributues Blend shapes Muscle models surface muscles deep muscles Performance (or data) driven instrumented (mocap system) video http://www.youtube.com/watch?v=uQJ7gwG0G5g

44 Computer Animation Rick Parent Parameterized Facial features

45 Computer Animation Rick Parent Facial blend shapes

46 Computer Animation Rick Parent Facial muscle model

47 Computer Animation Rick Parent Surface muscle model Geometry-based Muscle Modeling for Facial Animation Kolja K¨ahler J¨org Haber Hans-Peter Seidel

48 Computer Animation Rick Parent “computer animation” facial http://www.youtube.com/watch?v=uQJ7gwG0G5g

49 Computer Animation Rick Parent “computer animation” facial coarticulation Text to speech Audio to speech prosody Phonemes to mouth shapes (visemes) Break down to phonemes http://www.youtube.com/watch?v=fxADT-kZNrA

50 Computer Animation Rick Parent Dressing the Figure Cloth and clothing Simple draping Clothes Modeling dynamics Collision detection and response

51 Computer Animation Rick Parent Dressing the Figure

52 Computer Animation Rick Parent Dressing the Figure

53 Computer Animation Rick Parent Dressing the Figure

54 Computer Animation Rick Parent Dressing the Figure

55 Computer Animation Rick Parent Dressing the Figure

56 Computer Animation Rick Parent Angular springs

57 Computer Animation Rick Parent Angular springs

58 Computer Animation Rick Parent Dressing the Figure

59 Computer Animation Rick Parent Dressing the Figure

60 Computer Animation Rick Parent Dressing the Figure

61 Computer Animation Rick Parent Hair Complexity 100,000 strands Collisions Shadowing Reflections Design hairstyle Animate hair Populate head with hair Hair types

62 Computer Animation Rick Parent Hair

63 Computer Animation Rick Parent Hair http://run.usc.edu/cs599-s10/hair/c33-hair-sig07.pdf

64 Computer Animation Rick Parent Hair

65 Computer Animation Rick Parent Hair

66 Computer Animation Rick Parent Hair

67 Computer Animation Rick Parent Hair

68 Computer Animation Rick Parent Hair – Hierarchy A Survey on Hair Modeling: Styling, Simulation, and Rendering Kelly Ward, Florence Bertails, Tae-Yong Kim, Stephen R. Marschner, Marie-Paule Cani, and Ming C. Lin,

69 Computer Animation Rick Parent Hair

70 Computer Animation Rick Parent Hair

71 Computer Animation Rick Parent Hair


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