## Re: [Algorithms] String simulation

 Re: [Algorithms] String simulation From: metanet software - 2010-08-03 16:29:20 ```Here are some more esoteric examples spanning a range of behaviours (the references will hopefully be helpful): Section 4.1.12 of Barenbrug's thesis presents a "multi-bar" constraint (a series of distance constraints that can be used to model cable/rope): http://www.win.tue.nl/dynamo/publications/bartbthesis.pdf Massless Cable for Realtime Simulation http://www.vrlab.umu.se/research/flexible/Massless.pdf Simulated Knot Tying http://www.cs.duke.edu/~jeffp/papers/rope-icra.pdf http://www.cs.duke.edu/~jeffp/research/icra-rope.pps Real-Time Knot Tying Simulation http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.14.5543&rep=rep1&type=pdf One-Dimensional Elastic Objects http://cg.informatik.uni-freiburg.de/people/spillma/corde.htm Unified Simulation of Elastic Rods, Shells, and Solids http://graphics.ethz.ch/~smartin/data/elastons.pdf Linear Time Super-Helices http://www.inrialpes.fr/bipop/people/bertails/Papiers/fastsuperhelixWeb.pdf A Mass Spring Model for Hair Simulation http://physbam.stanford.edu/~aselle/papers/9/hair.pdf Discrete Elastic Rods http://www.cs.columbia.edu/cg/rods/ Most games seem to just use a chain of particles+distance constraints (or bodies+pin constraints), possibly with some tricks (such as solving the constraints in order from the free end to the anchored end, or adding a max-distance constraint between the first and last links so that the rope can't stretch too much). raigan --- On Mon, 8/2/10, Ron Hay wrote: > From: Ron Hay > Subject: [Algorithms] String simulation > To: "Game Development Algorithms" > Received: Monday, August 2, 2010, 9:33 PM > Turns out searching for "string > simulation" turns up a lot of things *not* about simulating > little pieces of yarn and twine.  Does anyone have > pointers to papers/techniques for simulating > string/rope/twine?  > > On the plus side I've read a couple interesting papers on > String Theory! > > Thanks... > >    Ron > > ------------------------------------------------------------------------------ > The Palm PDK Hot Apps Program offers developers who use > the > Plug-In Development Kit to bring their C/C++ apps to Palm > for a share > of \$1 Million in cash or HP Products. Visit us here for > more details: > http://p.sf.net/sfu/dev2dev-palm > _______________________________________________ > GDAlgorithms-list mailing list > GDAlgorithms-list@... > https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list > Archives: > http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list > ```