A virtual prototyping tool for knitwear simulation

This paper both presents a 3D geometric model of knitted structures based on technical data usually used by knitted cloth experts and a physically-based model for knitwear simulation. This physically-based model relies on 3D curves modelled as successions of spline segments. It insures that at each time step the curve shape conforms to its spline definition, and thus that every property implied by the nature of the chosen spline model is verified. This fact is achieved by the animation of the spline control points. However, these control points are not considered as material points but as the degrees of freedom of the continuous object. The knitwear simulation suite encompasses topological and geometrical modelling of the rest state, mechanical modelling (including stitches bindings) suitable for our custom simulation engine based on Lagrange equations.