My function fails in a scenario like this because it thinks the boundary edges are one hole, as they are connected.
When I have some time I'll try to revise it. On Wed, Aug 1, 2012 at 11:22 AM, Grahame Fuller <grahame.ful...@autodesk.com > wrote: > I believe this is the issue that Joey was referring to. You's need to > somehow consider the "hole islands" rather than the polygon islands. > > gray > > -----Original Message----- > From: softimage-boun...@listproc.autodesk.com [mailto: > softimage-boun...@listproc.autodesk.com] On Behalf Of Stefan Kubicek > Sent: Wednesday, August 01, 2012 04:37 AM > To: softimage@listproc.autodesk.com > Subject: Re: A good "Cap All Holes" script? > > Are the difficult scenarios you mention not ultimately a non-manifold > geometry problem? > This reminds me on the "Any tips to fix non-manifold vertices in Soft?" > thread as of June 26th. > > We came up with: > > "A vertex is non-manifold if more than two of its adjacent edges > do not share their second vertex with any other of said adjacent edge's > second vertices." > > Or as Martin Chatterjee put it slightly differently: > > "I'd check if a vertex has a neighborPolygon that does *not *share an edge > with any of the > other neighborPolygons" > > According to this it should be possible to identify problematic vertices > and split the capping process up on a "per island" basis. > > > > > > Back several years ago I spent quite a bit of time trying to develop a > > "Fill Hole" script similar to Maya's. Beware this activity when using > > something automated. > > > > I ran into immense difficulty trying to develop a method for sealing > > winged holes. In general holes which are an island upon themselves are > > easy to fill. That means that if a quad hole has an adjacent poly > > present at each edge and more importantly each vertex, totalling 8 > > polys surrounding the quad hole, the hole is extremely easy to fill. I > > succeeded quite well at accomplishing an automated script to fill all > > holes on a mesh in one click. > > > > The problem however is if any hole has another adjacent hole present at > > a shared vertex (oxymoron? since you can't really share vertices for > > something that technically is a void), but separated by two polys winged > > at the vertex, its extremely difficult by conventional standards to not > > identify the two holes that are winged as a single hole. > > > > If memory serves me right even Maya had an issue with this as you could > > delete a single poly on a mesh and if the sphere was selected as an > > object running Fill Hole would automatically seal all valid holes. > > However if their were two holes and they were adjacent, or winged at a > > vertex, Maya was smart enough to know how to avoid the situation and > > would prevent the winged holes from being filled with a single poly. > > > > The point is, its fairly easy to to write a script to fill the hole, but > > it must be smart enough to prevent the winged holes from becoming a > > single poly, which is very very bad. If you have a script that was > > written to do this task, test it on an example with winged holes before > > you proceed. You won't regret the extra effort. > > > > Incidentally this tool is not impossible to write, but as a script or > > plugin it requires special information about the topology be available > > for the user to query. In my experience XSI did not provide enough > > vertex, facet and edge info to give the developer enough information to > > easily script a bulletproof fill hole tool. > > > > Joey Ponthieux > > ATOL Experiment Specialist > > LaRC Information Technology Enhanced Services (LITES) > > Science Systems and Applications, Inc. > > NASA Langley Research Center > > 15 Langley Blvd B1268 R1051 > > Hampton, VA, 23681 > > Phone: 757-864-6754 > > EMail: j.ponthi...@nasa.gov > > ____________________________________________________________ > > Opinions stated here-in are strictly those of the author and > > do not represent the opinions of NASA or any other party. > > > > > > On 2/13/2012 1:12 PM, Alan Fregtman wrote: > >> Sweet! Thanks, Mr.Core! ;) > >> > >> On 2/13/2012 11:47 AM, Oleg Bliznuk wrote: > >>> Hi Alan, > >>> you can also do it with a little bit modified "cap holes" compound via > >>> ICE, we are using it in ImplosiaFX > >>> http://clip2net.com/s/1ABrt > >>> -Oleg > >> > > > > > -- > ------------------------------------------- > Stefan Kubicek Co-founder > ------------------------------------------- > keyvis digital imagery > Wehrgasse 9 - Grüner Hof > 1050 Vienna Austria > Phone: +43/699/12614231 > --- www.keyvis.at ste...@keyvis.at --- > -- This email and its attachments are > --confidential and for the recipient only-- > >
