You are experiencing exactly what I experienced at Carbine that prevented
upgrade from Softimage 7.5 for 5+ years. If you can tell me with certainty
which version of Softimage you made the geometry, I may be able to help you
salvage some stuff.
I reported a ton of corruption issues from XSI v6.x thru 2012 SP2. All
those versions have hidden gremlins like what you just uncorked. The
specific gremlin and it's solution varies depending on the version of the
software the geometry was created and/or last modified prior to being opened
to 2013 or later. Geometry created in 2013 SP1 or later should not have any
of these issues.
One thing you could check is to see if your geometry has polygon clusters.
If so, try rebuilding them, then deleting the original polygon cluster(s).
I suggest doing while geometry operator loading/evaluation is disabled in
your user preferences. That tended to fix a lot of our problems.
Triangulating geometry also helped.
I also suggest you fix the issues in the version of Softimage which they
were created and not try to fix it in 2014 or later as the fixes to those
problems actually prevent you from fixing them in the latter versions. For
example, if the scene was created in Softimage 2011, then fix the problems
in Softimage 2011.
Matt
Date: Mon, 6 Jul 2015 13:51:34 +0000
From: "Ponthieux, Joseph G. (LARC-E1A)[LITES]" <[email protected]>
Subject: RE: ERROR : 2000 - Mesh structure error (corruption)
To: "[email protected]"
It would seem that this is mostly geometry related. It also seems that it is
an age issue as I have some Models that were created in Soft about 5 years
ago and created no problems then but are demonstrating issues now. What's
more bizarre is that one mesh has topology errors that I am certain did not
exist back then. It literally boils down to a simple 64x64 square grid of
quads that was generated from a loft and later converted to a mesh. There is
an area of about 15 or so polys that are mangled, missing, and non-manifold,
kind of like you see in some DWG to mesh conversions. But there is
absolutely no apparent reason for it. I have other geometry that came over
from Maya that was originally NURBS and a lot of older Viewpoint geometry as
well. I see the problem a lot with those models. But that isn't what
surprises me. It's the custom modeling created in Maya and Softimage about 5
years ago that really doesn't make sense. It's like the entire mesh database
for any geometry that exhibits the problem is unstable. The minute you
delete offending points, edges or polys the problem moves to a different
part of the mesh. Its as if the geometry, when read by SI, was read wrong
and mangled. You have to delete the entire mesh and recreate it. Just as you
said, it's a lost cause. The only thing with these models that seems to be
consistent is their age and the fact that they started existence as a NURBS
model and at some point converted to mesh.
--
Joey Ponthieux
LaRC Information Technology Enhanced Services (LITES)
MYMIC Technical Services
NASA Langley Research Center
__________________________________________________
Opinions stated here-in are strictly those of the author and do not
represent the opinions of NASA or any other party.
