Computer Animation Rick Parent Computer Animation Algorithms and Techniques Figure Animation

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

Computer Animation Rick Parent Body Modeling - Geometry Polygonal representations

Computer Animation Rick Parent Body Modeling - Geometry

Computer Animation Rick Parent Body Modeling - Geometry Subdivision surfaces

Computer Animation Rick Parent Body Modeling - Geometry Implicit surfaces

Computer Animation Rick Parent Body Modeling - Geometry Body scan

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

Computer Animation Rick Parent Animation – Skeleton Driven

Computer Animation Rick Parent Animation – Skeleton Driven

Computer Animation Rick Parent Animation– Layered Approach

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

Computer Animation Rick Parent Modeling the Arm Also used is DoF

Computer Animation Rick Parent Modeling the Arm

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

Computer Animation Rick Parent Modeling the Shoulder

Computer Animation Rick Parent Reaching

Computer Animation Rick Parent Approximating Human Reaching Volumes Using Inverse Kinematics I. Rodrígueza, M. Peinadoa, R. Boulicb, D. Meziata

Computer Animation Rick Parent Modeling the Hand

Computer Animation Rick Parent Grasping

Computer Animation Rick Parent Grasping

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

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

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

Computer Animation Rick Parent Anatomy of the Walk

Computer Animation Rick Parent Anatomy of the Run

Computer Animation Rick Parent Pelvic transport

Computer Animation Rick Parent Pelvic rotation over foot

Computer Animation Rick Parent Pelvic rotation around hips

Computer Animation Rick Parent Motion of pelvic

Computer Animation Rick Parent Pelvic tilt

Computer Animation Rick Parent Knee bend to allow tilt

Computer Animation Rick Parent Ankle and Toe bend

Computer Animation Rick Parent Walk Data

Computer Animation Rick Parent Walk Data

Computer Animation Rick Parent Walk Data

Computer Animation Rick Parent Walk Data

Computer Animation Rick Parent Walk Data

Computer Animation Rick Parent Using Dynamics in the Walk

Computer Animation Rick Parent Using Dynamics in the Walk

Computer Animation Rick Parent Using Dynamics in the Walk

Computer Animation Rick Parent facial animation Expressions v. speech

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

Computer Animation Rick Parent Parameterized Facial features

Computer Animation Rick Parent Facial blend shapes

Computer Animation Rick Parent Facial muscle model

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

Computer Animation Rick Parent “computer animation” facial

Computer Animation Rick Parent “computer animation” facial coarticulation Text to speech Audio to speech prosody Phonemes to mouth shapes (visemes) Break down to phonemes

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

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Angular springs

Computer Animation Rick Parent Angular springs

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

Computer Animation Rick Parent Dressing the Figure

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

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

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,

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair

Computer Animation Rick Parent Hair