1 / 23

Computer Animation

Computer Animation. CSE169: Computer Animation Instructor: Steve Rotenberg UCSD, Winter 2004. CSE169 (was 190B). Computer Animation Programming Instructor: Steve Rotenberg steve@graphics.ucsd.edu TA: Nick Gebbie Lecture: Center Hall 222 (TTh 6:30-7:50pm) Office: AP&M 3349A (TTh 5-6pm)

oshin
Download Presentation

Computer Animation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computer Animation CSE169: Computer Animation Instructor: Steve Rotenberg UCSD, Winter 2004

  2. CSE169 (was 190B) • Computer Animation Programming • Instructor: Steve Rotenberg steve@graphics.ucsd.edu • TA: Nick Gebbie • Lecture: Center Hall 222 (TTh 6:30-7:50pm) • Office: AP&M 3349A (TTh 5-6pm) • Lab: AP&M 2444 • Web page: http://graphics.ucsd.edu/courses/cse169_w04/index.html

  3. Prerequisites • CSE167 or equivalent introduction to computer graphics • Familiarity with: • Vectors (dot products, cross products…) • Matrices (4x4 homogeneous transformations) • Polygon rendering • Basic lighting (normals, Gouraud, Phong…) • OpenGL, Direct3D, Java3D, or equivalent • C++ or Java • Object oriented programming • Basic physics

  4. Undergraduate Computer Graphics at UCSD • CSE 167: Introduction to Computer Graphics • CSE 168: Rendering Algorithms • CSE 169: Computer Animation

  5. Reading • Papers • Chapters • Suggested books • 3D Computer Graphics: A Mathematical Introduction with OpenGL (Buss) • Advanced Animation and Rendering Techniques (Watt & Watt)

  6. Angel Studios • Movies: • The Lawnmower Man • Enertopia (stereoscopic IMAX) • Videos: Peter Gabriel’s “Kiss That Frog” • Games: • Midnight Club 1 & 2 (PS2, XBox) • Transworld Surf (PS2, XBox, GameCube) • Smuggler’s Run 1 & 2 (PS2, XBox, GameCube) • Midtown Madness 1 & 2 (PC) • Savage Quest (Arcade) • Test Drive Offroad: Wide Open (PS2) • N64 version of Resident Evil 2 (N64) • Ken Griffey Jr.’s Slugfest (N64) • Major League Baseball Featuring Ken Griffey Jr. (N64) • Sold to Take Two Interactive (Rockstar) in November, 2002

  7. Angel Games

  8. Programming Projects • Project 1: Due Beginning of Week 3 • Skeleton Hierarchy: Load a .skel file and display a 3D pose-able skeleton • Project 2: Due Beginning of Week 5 • Skin: Load .skin file and attach to the skeleton • Project 3: Due Beginning of Week 7 • Animation: Load .anim file and play back a key-framed animation on the skeleton • Project 4: Due Beginning of Week 10 (Choose one of the following) • Cloth: Implement a simple cloth simulation • Fancy Particles: Implement a particle system with collision detection and some fancy forces • Locomotion & Inverse Kinematics: Implement an IK algorithm and use it to achieve a walking character • Rigid Bodies: Implement a simple rigid body system with collisions • Choose your own project (but talk to me first)

  9. Grading • 15% Project 1 • 15% Project 2 • 15% Project 3 • 20% Project 4 • 15% Midterm • 20% Final

  10. Course Outline • Introduction • Skeletons • Skinning • Keyframes • Facial Animation • Advanced Skinning & Facial Animation • Inverse Kinematics 1 • Inverse Kinematics 2 • Animation State Machines & Blending • Locomotion 1 • Locomotion 2 • Particle Systems • Collision Detection • Clothing & Hair Simulation • Rigid Bodies • Character Dynamics • Deformable Bodies & Advanced Physical Simulation • Behavioral Animation & Artificial Intelligence • Motion Capture • Demonstrations

  11. Computer Animation Overview

  12. Applications • Special Effects (Movies, TV) • Video Games • Virtual Reality • Simulation, Training, Military • Medical • Robotics, Animatronics • Visualization • Communication

  13. Computer Animation • Physics (a.k.a. dynamics, simulation, mechanics) • Character animation • Artificial intelligence

  14. Physics Simulation • Particles • Rigid bodies • Collisions, contact, stacking, rolling, sliding • Articulated bodies • Hinges, constraints • Deformable bodies (solid mechanics) • Elasticity, plasticity, viscosity • Fracture • Cloth • Fluid dynamics • Fluid flow (liquids & gasses) • Combustion (fire, smoke, explosions…) • Phase changes (melting, freezing, boiling…) • Vehicle dynamics • Cars, boats, airplanes, helicopters, motorcycles… • Character dynamics • Body motion, skin & muscle, hair, clothing

  15. Character Animation • Animation • Motion playback • Keyframing • Blending, sequencing • Motion synthesis • Locomotion (walking, flying, swimming, slithering…) • Inverse kinematics • Procedural animation • Warping & retargetting • Physics (inverse dynamics, optimization…) • Motion input • Motion capture (& other motion input techniques) • Vision based capture • Rigging • Skeletons • Skin, face, & deformations • Visual properties (materials, lighting…) • Secondary motion (clothing, hair, fur…)

  16. Artificial Intelligence • Behavioral animation • Background characters (flocks, herds, armies, crowds…) • Video game animation

  17. Rigging • Rigging refers to the construction and setup of an animatable character, similar to the idea of building a puppet • A ‘rig’ has numerous degrees of freedom (DOFs) that can be used to control various properties • DOFs can represent things like the rotation of the elbow joint, the percentage that an eyelid is open, or any other ‘animatable’ property • The animation system specifies values for these DOFs over time, thus animating the rig • The rig can also have built in secondary animation such as hair and clothing • The difference between rigging & animation makes a nice conceptual separation, and is often reflected in the software architecture • The rigging system can encapsulate other systems such as the skeleton, skinning, facial expressions, clothing, and hair • The animation system can encapsulate systems such as playback, inverse kinematics, dynamics, locomotion, and motion synthesis

  18. Animation Process while (not finished) { MoveEverything(); DrawEverything(); } • Interactive vs. Non-Interactive • Real Time vs. Non-Real Time

  19. Frame Rates • Film 24 fps • Imax 48 fps • NTSC TV 30 fps (interlaced) • PAL TV 25 fps (interlaced) • HDTV 60 fps • Computer ~60 fps

  20. Frame Rate Issues • Strobing, temporal aliasing • Motion blur • Interlacing • Double buffering (& tearing)

  21. Animation Tools • Maya • 3D Studio • Lightwave • Filmbox • Blender • Many more…

  22. Animation Production • Conceptual Design • Production Design • Modeling • Materials & Shaders • Rigging • Blocking • Animation • Lighting • Effects • Rendering • Post-Production

  23. Principles of Animation • Squash and Stretch • Timing • Anticipation • Staging / Presentation • Follow Through / Overlapping Actions • Straight Ahead vs. Pose-to-Pose • Slow In and Out • Arcs • Exaggeration • Secondary Motion • Appeal

More Related