Index
Abstract.................................................................................................................................................1
Introduction..........................................................................................................................................1
Index.....................................................................................................................................................2
Motivations...........................................................................................................................................4
Real motion......................................................................................................................................4
Movement using a simple interpolation...........................................................................................5
Mass Spring System.........................................................................................................................5
Physical Model.....................................................................................................................................7
Basic equation..................................................................................................................................7
Implementation................................................................................................................................8
Units.................................................................................................................................................8
Basic oscillating system...................................................................................................................8
Topologies........................................................................................................................................9
Regular structures.......................................................................................................................9
Random structures.....................................................................................................................10
Collection of independent simple structures.............................................................................11
Shape morphing.........................................................................................................................11
Modal synthesis.........................................................................................................................12
Real time interaction strategies......................................................................................................12
Moving fixed masses................................................................................................................12
Sending force to masses............................................................................................................12
Changing physical parameter....................................................................................................13
Using data created by a MSS.........................................................................................................13
Sound synthesis.........................................................................................................................14
Direct audio simulation........................................................................................................14
Scanned synthesis.................................................................................................................14
“Many element synthesisâ€....................................................................................................15
Visual synthesis.........................................................................................................................15
Complex system.............................................................................................................................17
Non linearity.............................................................................................................................17
Space limitation of links.......................................................................................................17
Non linear rigidity................................................................................................................17
Non linear damping..............................................................................................................18
More interactions......................................................................................................................18
Motion damping...................................................................................................................18
Creep of a link......................................................................................................................18
Plastic link............................................................................................................................19
Breaking link........................................................................................................................19
Link elongation computation error...........................................................................................19
MSS simulation and emergent phenomena...............................................................................20
Instabilities................................................................................................................................21
Controlling instabilities.............................................................................................................21
Example : chdh – emergence....................................................................................................23
MSS and Pure Data: the pmpd library................................................................................................26
Installation.....................................................................................................................................26
Generality.......................................................................................................................................26
Masses............................................................................................................................................26
Link................................................................................................................................................26
Metronome.....................................................................................................................................27
Interactor........................................................................................................................................27