Re: disconnecting UVs in *.obj export?

["Tim Leydecker" <BauerOink(at)gmx.de>]

I have a question before I file that featurerequest for the
handling of polybisectors in XSI (especially *.obj export).

Would you guys find it a useful simplification and
speedimprovement to have XSI in general only
generate multiple polybisectors at shellborders,
sort of automatically merging (once, on edit) double
UVs when "snapping together" UVs to a shell and
only using the polybisectors (internally) to discern
individual UV shells in a mesh or would this interfer
with anything like Normal/Discontinuity calculation?

I really like the idea of not having to explicitely use
cut and sew UVs as it´s done in Maya to create shells,
selecting faces and "docking´ em" as in XSI seems
to be the superior concept in terms of potential speed?

Or should I skip the above and just ask for an automatic
merge to shells for *.obj export (and *.fbx maybe)?

I´d really like to use the XSI UV tool more but it´s so
unbearably slow in comparison to Maya´s UV editor.

Cheers

tim





----- Original Message ----- 
From: "Tim Leydecker" <BauerOink(at)gmx.de>
To: <XSI(at)Softimage.COM>
Sent: Wednesday, November 29, 2006 7:51 PM
Subject: Re: disconnecting UVs in *.obj export?


> Hi guys,
>
> it´s probably as Greg pointed out a different approach
> in handling UVs, sounds plausible, especially since XSI
> has no tool to "merge/cut" UVs but just let´s you snap´em.
>
> When I import the mesh with a UVset created in Maya,
> the polybisectors are recreated, e.g. I again those many
> more samples as I have connections to a vertex.
>
> Maybe that´s the reason why XSI is so incredibly slow
> in it´s TextureEditor (or whatever it´s called, ALT+7)?
>
> I´ll obviously not ask to completly change things in my
> featurerequest but to at least check if there´s a way to
> merge UVs to shells on *.obj export to strengthen the
> crossplattformcompatibility and I/O with other apps a bit?
>
> Besides, the *.obj created in Maya is roughly 10MB smaller
> than the (otherwise same) file coming from Maya, e.g. it´s
> 36MB to 26MB in size (ok. it´s around a 100 000 quads...).
> Just a guess but part of that could well be the imho obsolete UVs?
>
> Cheers
>
> tim
>
> ----- Original Message ----- 
> From: "peter boeykens" <peter_b(at)skynet.be>
> To: <XSI(at)Softimage.COM>
> Sent: Wednesday, November 29, 2006 7:30 PM
> Subject: Re: disconnecting UVs in *.obj export?
>
>
> > if you import the .obj again into XSI, what does it look like?
> >
> >
> > ----- Original Message ----- 
> > From: "Tim Leydecker" <BauerOink(at)gmx.de>
> > To: <XSI(at)Softimage.COM>
> > Sent: Wednesday, November 29, 2006 6:14 PM
> > Subject: disconnecting UVs in *.obj export?
> >
> >
> > Hi guys,
> >
> > I´ve a clean, all-quadmesh created in XSI with
> > a planar TextureSupport providing UVcoordinates.
> > Nothing special until I export the mesh as *.obj file
> > and import it into Maya, in both Maya 6 and 8 I
> > end up with the mesh having 4 UVs per Vertex?
> >
> > This isn´t ideal, especially not for I/O with ZBrush...
> >
> > Anyone else ran into this on XSI 5.11? bug/fix?
> >
> > Cheers
> >
> > tim
> >
> >
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