Cartoon Animation Editing : Cartoon Animation Editing Jaewon Song
2010. 05. 26
Slide 2: P P P
Table of Contents : Table of Contents Introduction
Key Framing vs. Motion Capture
Motion Capture System
Problem of Motion Capture System
Cartoon Animation Editing
Key framing : Key framing
Key framing : Key framing Good
Can animate anything what you want
Can represent emotion, feeling and characteristics of characters
Bad
Hard to make a motion
Only few skilled animator can make reliable animation
Time, effort and expenses
Motion Capture : Sensing, digitizing and recording of motion
All the fine details of human motion will be reproduced Motion Capture
Motion Capture : Motion Capture History
Eadweard Muybridge (1830 – 1904)
Animal locomotion
Motion Capture : Motion Capture History
Rotoscope
Max Fleischer 1915
Motion Capture : Motion Capture Magnetic
Sensors on the body
No occlusion & correspondence
Limited accuracy
Smaller workspace
Heavier sensors and wires of body
Sensitive to electromagnetic interference
Motion Capture : Motion Capture Mechanical
Exoskeleton
No range limit
No occlusion / correspondence
Restriction movement
Fixed sensor positions
Motion Capture : Motion Capture Optical(passive)
Generally used
High quality & stable
Object capture
Need to big space
Occlusion/Correspondence
problem
Motion Capture : Motion Capture
Motion Capture : Motion Capture Optical (active)
Same concept as passive
Can reduce occlusion & correspondence problems
Motion Capture : Motion Capture Acoustic Motion Capture
Puppet Motion Capture
Computer Vision Method
Motion Capture : Motion Capture iMocap
Motion Capture : Motion Capture Motion Retargeting
Cannot apply another character directly
Using the Skeleton Hierarchy
Motion Capture : Facial Retargeting Motion Capture Source
Blendshape Target
Blendshape
Motion Capture : Motion Capture Motion capture is always good for making an animation? Motion Capture vs. Keyframing : Motion Capture vs. Keyframing “The main problem with motion capture associated with characters has to do with mass-distribution, weight and exaggeration. It is impossible for a performer to produce the kind of motion exaggeration that a cartoon character needs, and the mass and weight of the performer almost never looks good when applied to a character of different proportions.”
- Eric Darnell (Codirector of <Antz>)
“모션 캡쳐와 관련된 중요한 문제들은 중량의 배분, 무게감, 그리고 과장에 대한 것이다. 연기자들은 만화 캐릭터와 같이 과장된 동작을 연기할 수 없고, 신체 비례가 다른 캐릭터에 적용되었을 때 중량의 이동이 결코 좋게 보이지 않는다.”
- 에릭 다넬(영화 <개미> 의 공동감독)
Motion Capture vs. Keyframing : Motion Capture vs. Keyframing “The Motion Captured from the human actor could not give us the lizard-like motion we were seeking… We found that the Godzilla motion we wanted was one that maintained the sense of huge mass and weight. No human actor could give this result.”
- Karen Goulekas(<Godzilla> visual effects supervisor)
“우리가 모션 캡쳐를 사용하지 않은 이유는 간단하다. 사람으로부터 녹화한 동작 데이터는 우리가 찾고 있던 도마뱀 같은 움직임을 주지 못했다. 모션 캡쳐는 고질라의 거대한 중량감도 반영하지 못했다. 어떤 연기자도 우리가 원하는 결과를 주지 못 했다.”
- 카렌 골리카스 (영화 <고질라> 의 특수 효과 담당)
Motion Capture vs. Keyframing : Motion Capture vs. Keyframing Weight
Exaggeration
Characteristics
Questions : Questions How to make a cartoon style animation from non-cartoon style animation data?
Cartoon Animation Filter : Cartoon Animation Filter SIGGRAPH 2006
Jue Wang
(University of Washington)
Animation
Cartoon Style Animation : Cartoon Style Animation
Cartoon Animation Filter : Concept Cartoon Animation Filter
Cartoon Animation Filter : Cartoon Animation Filter : convolution
: Inverted Laplacian of a Gaussian
Cartoon Animation Filter : Examples Cartoon Animation Filter
Cartoon Animation Filter : Cartoon Animation Filter Cannot modification
Applying uniformly
Cartoon Animation Editing : Cartoon Animation Editing Making the cartoon style animation from motion capture data
Cartoon Animation Editing : Cartoon Animation Editing Input Mocap Data Cartoon Style Animation
Learning Data Set Output
Cartoon Animation Editing : Cartoon Animation Editing Input Mocap Data
Walk cycling Cartoon Style Animation
Characteristics Data Set Output
Cartoon Animation Editing : Cartoon Animation Editing Input Mocap Data Animator Animation Works
Learning Data Set Output
Cartoon Animation Editing : Cartoon Animation Editing Adding motions
Changing timing
Modifying exaggeration
Cartoon Animation Editing : Cartoon Animation Editing
Thank You! : Thank You! Jaewon Song
2010. 05. 26