Transcript CIS 563: Physically based animation Ladislav Kavan Final Projects Final Project - What is it?  A project of your choice - groups of 1-3

CIS 563: Physically based animation
Ladislav Kavan
Final Projects
Final Project - What is it?
 A project of your choice
-
groups of 1-3 people (of course we expect larger project from
bigger team)
can use existing code (but you have to clearly state it)
you will also need to implement your own physically-basedrelated code
discuss project ideas on Piazza – it’s a good idea to have the topic
approved by instructors or TAs
topics are not exclusive, multiple teams can work on the same topic
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CIS563 Grade
 55% homework
 40% final project
 5% class / piazza participation
Bottom line:
 More important than grade is your demo reel
 Career: industry / academia (PhD) / startup
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Important Dates
03/30: Teams Formed and Project Topic
Decided. Submit to Canvas (everyone).
04/27: Final Projects due (writeup + code +
video).
Late days do not apply to final projects.
04/27 & 04/29: Final Project presentations (in
class).
04/29: Last day of classes
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Task 1: Project Topic & Team
 Project title & abstract (1 paragraph)
 Include names of all team members
 All team members are equal, all submit the
same short document on Canvas
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Previous Final Projects
 Ying: http://youtu.be/OC58YkYvmHQ
 Xinjie: https://youtu.be/DR5F7xzcCuo
 Sijie: https://www.youtube.com/watch?v=52_gbQDSmho
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Projects can kickstart your thesis
 Research-type projects
 CIS 563 Final project can be used as
springboard for Master’s thesis project
 Re-using your final project code, data, models
etc. is allowed
 Unique opportunity to try research
 Without having to commit to a PhD program
 Nathan Marshak: http://youtu.be/cBVCbSq_7rI
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Research-type projects
Parallel Fast-mass Springs
https://www.youtube.com/watch?v=N520KFOxaDg
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Corotated elasticity using quaternions
 Might be more accurate than matrix-based
corot elasticity due to the double cover
property
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Simulation of living tissues
Surgical simulation
- Very interesting materials
- How to simulate e.g. connective tissues?
https://www.youtube.com/watch?v=8tepFfxTaZw
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iLarynx++: Intubation Simulator
https://www.youtube.com/watch?v=d62JdxyscNI
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Skinning Mesh Animations
Approximate animation using skinning
 Used a lot in the industry
 Compression of pre-baked phys-based
animations
https://www.youtube.com/watch?v=e0rugcfR8K4
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Production-type projects
Topics: general recipe
Pick a paper (typically SIGGRAPH or SCA)
 Variational integrators
 Cloth with self-collisions
 Rigid body simulation (will be covered in class)
 Finite element elasticity (will be covered in class)
 Control of articulated characters
 PIC and FLIP fluid simulation
 Level-set methods and water simulation
 Hair simulation
 Fire and explosions
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Unified particle physics
 Based on PBD ideas, but more general
https://www.youtube.com/watch?v=ffgRC3kvA_k
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Symplectic integrators
 Better energy preservation
 Read related papers from Caltech (e.g.
[Kharevych et al. 06])
 Good for math/physics nerds 
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Cloth with self-collisions
 PBD or mass-spring
 Detect and respond to self-collisions
Seminal paper:
Robust Treatment of Collisions, Contact and Friction for Cloth
Animation (Bridson, Fedkiw, Anderson, 2002)
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Control of articulated characters
 Use existing rigid body simulator
SIMBICON: Simple Biped Locomotion Control, Kangkang Yin,
Kevin Loken, Michiel van de Panne SIGGRAPH 2007
More recent work by Stelian Coros
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PIC and FLIP fluid simulation
Hybrid particle/grid methods
 Used in industrial simulators
Animating Sand as a Fluid, Yongning Zhu, Robert Bridson,
SIGGRAPH 2005
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Level set methods and water
Practical Animation of Liquids, Nick Foster,
Ronald Fedkiw, SIGGRAPH 2001
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Hair simulation
A Mass Spring Model for Hair Simulation,
Selle, Lentine, Fedkiw, 2008
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Fire and Explosions
 “Physically Based Modeling and Animation
of Fire” by Nguyen, Fedkiw, Jensen
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Make your own topic
Look at recent SIGGRAPH papers
http://kesen.realtimerendering.com/
Caveat: not always easy to implement
 Sometimes a lot of background is needed
 Ask for advice (how hard is it?)
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