[Bf-committers] Similar Surface modifier

Vilem Novak pildanovak at post.cz
Thu Oct 29 23:30:13 CET 2009


I guess the closest modifier to the one requested is not Shrinkwrap, 
but mesh-deform.
I have to agree with Roland, that for simulating detailed clothes, It would be great to 
be able to bind mesh to a simplified cloth mesh, which is often not closed
(which is a condition for the mesh-deform modifier), also mesh-deform requires
all the bound vertices to be inside of the simpler mesh upon initialisation. 
So, with mesh-deform you'd have to actually build a 2-layered cloth mesh
 around your detail cloth, which would likely produce cloth simulation which 
would squash the cloth in it's normal direction and possibly would do more weird stuff.
So the request is about binding the detail mesh to closest faces of simulation mesh,
 rather than to volume.
with regards
Vilem Novak



> ------------ Původní zpráva ------------
> Od: Roland Hess <rolandh at reed-witting.com>
> Předmět: Re: [Bf-committers] Similar Surface modifier
> Datum: 29.10.2009 17:18:34
> ----------------------------------------
> Hi Daniel,
> 
> Shrinkwrap is great for initial conditions. There are two major ways in 
> which it is not up to the usage I described (and please put me some 
> knowledge if I'm in error here):
> 
> 1. A shirt with a modeled pocket will be destroyed by shrinkwrap. Every 
> vert of the wrapping mesh find it's nearest point on the target, making 
> the surfaces of the pocket now coincident with those of the rest of the 
> shirt. The goal of this is to leave the high res mesh (like the shirt) 
> undeformed until the surface to which it is bound deforms.
> 
> 2. An underlying mesh that wrinkles (exhibits concavity) causes it to 
> fail in effect. The bound mesh (the high resolution) would not follow 
> the bind target in and out of the wrinkle with shrink wrap -- it would 
> pick the outermost point.
> 
> The goal of the Similar Surface modifier is to provide to one (complex) 
> surface to another so that the bound surface follows the deformation of 
> the target surface, as though it were pinned to that surface.
> 
> > Does anyone here ever tried the "ShrinkWRAP" modifier? It was especially 
> > designed for that purpose.
> Thanks for your pointers on the cloth sim the other week, btw. Using the 
> example you provided, I was able to come up with some very stable 
> settings that produced nice results.
> 
> -- 
> Roland Hess
> harkyman
> 
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