Mesh for real-time cloth physics

hyrumark

I've been hired to create some drapery that will be used for a real-time cloth sim - blowing in the wind and such. I didn't get many specifics, only that I should not model any creases or folds as the physics will take care of that in real-time.

Any suggestions? Should I just make a randomly tesselated plane that hangs fairly straight?

renderhjs

have you worked with the garmet maker in 3dsmax before?,- within the process your plane will get tesselated in a way that it is fairly friendly for the physiscs simulation like this:

Try to use some of the tools that are done there.
some links:
[ame]http://www.youtube.com/watch?v=b9JYo32dHZY[/ame]
and the official help entry:
http://www.kxcad.net/autodesk/3ds_max/Autodesk_3ds_Max_9_Reference/garment_maker_modifier.html

CrazyButcher

centroidal voronoi tesselation (stabilized voronoi diagrams with delauney triangulation) yield the best results. Maybe some tools/plugins exist for distributing vertices according to it.

it's typically used in physics especially FEM



http://hpfem.math.utep.edu/felina/attachment/wiki/Projects/piece1.png

http://foxmath.blogspot.com/2007/04/centroidal-voronoi-tessellations-vs.html
http://etd.lib.fsu.edu/theses/available/etd-04132008-220940/unrestricted/Hoa_dissertation.pdf

hyrumark

Thanks for the responses, I figured I'd probably need that type of triangulation instead of perfectly gridded quads. But I've never done anything like this for a real-time sim before.

Jonathan

NBA 2k6-2k8 has great cloth physics.
[ame]http://www.youtube.com/watch?v=xGMifo9Dsvk&feature=related[/ame]