Internal force representation
The fibre organisation that is presented here is less complex than the previous one. Although, it is more general because useable with any kind of clothes.
The idea is very simple. For each node, we define a connection radius, and connect it to all neighbor nodes inside the defined disk. Each connection represent a
fibre(a linear spring force). However, for objects imported from usual file formats (like the 3DS format), we use a more complex representation (see technical paper in 'papers' section for details).
Once given the structure of the cloth, we must compute forces.
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