[Sidefx-houdini-list] Skin SOP Flipping

Rick Walia rickw at the-mill.com
Fri Jan 6 16:44:35 EST 2006


Hi Peter,

thanks for the reply. I tried that but it seems to have done nothing to fix the 
flipping and twisting ;(





Peter Bowmar wrote:
> Hey Rick,
>     Can you use the Sort SOP, using Proximity to Point or Along
> Vector, perhaps? Just a thought...
> 
> Cheers,
> 
> Peter B
> 
> On 06/01/06, Rick Walia <rickw at the-mill.com> wrote:
> 
>>Hi guys,
>>
>>I have an series of curves generated by using the extract function of the cookie
>>sop. I have an object passing through a grid and am extracting the profile at the
>>intersection. The other curves are a series of peaks from the 2 objects. All the
>>curves have different point counts as the object that passes through the grid is
>>deforming.
>>
>>I need to skin all these curves but I'm finding that in certain frames the mesh
>>generated from the skin flips for some reason. I'm not quite sure what's happening
>>here.
>>
>>I suspect that the mesh generated from the skin is flipping because the point
>>order is changing as my object passes through the grid.
>>
>>I was wondering if there's a way to set the 0 position on all the curves to be the
>>same on the Y plane? In maya I would cut all the curves with an interesection with
>>a line. All the curves then would have their 0 point position be the same plane.
>>I can then rebuild all the curves and loft them.
>>
>>I looked at the curvesect sop but it seems that I can only keep one side of the
>>curve. All I really need is to slice the curve so that all their 0 point starts in
>>the same place and flows in the same direction so that I can skin/loft it properly.
>>
>>Cheers,
>>
>>
>>--
>>Rick Walia
>>
>>The Mill NY
>>
>>
>>
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> 
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-- 
Rick Walia

The Mill NY






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