Re: [Meshlab-devel] quadric filters
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Re: [Meshlab-devel] quadric filters
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From: Paolo C. <pao...@is...> - 2008-07-17 06:24:25
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I fixed this, now texturequadric support better border preservation and absolute border preservation (border are left totally unchanged) but currently i am not able to commit back my mods SVN servers of sourceforge are moving and my #$@#%^%B dns is still thinking to find them at the old location :( http://sourceforge.net/community/forum/topic.php?id=2836&page&replies=1 hopefully later I will succeed in. P. skunkwerk wrote: > thanks Marco, > Paolo, is this feature something we could ask Marco to > implement? I re-did my tests, restarting meshlab each time so as not > to be affected by the bug you mentioned. the 'preserve boundary' > option does seem to work, but even without it selected the regular > quadric preserves much more of the boundary than the > quadric-with-texture does. > > i'm working on fixing the filter texture (texture atlas) plugin right now > > imran > > On Wed, Jul 16, 2008 at 1:55 PM, Marco Pirosu <pi...@gm... > <mailto:pi...@gm...>> wrote: > > the original quadric algorithm has been written by paolo cignoni. I > think to remember i did not manage it because it wasn't part of the > course project, even if the option is there (i think it has been put > there in order to be uniform with the normal one). Also, if i remember > well. the two algotithms work in a different way. The regular one is > dedicated for 3D geometry, while my algorithm is based on the Garland > multidimensional algorithm. > > > On 7/16/08, skunkwerk <sku...@gm... > <mailto:sku...@gm...>> wrote: > > it looks like the extra options in the regular quadric filter > make no > > visible difference (i tried reductions with them on and off) - > especially > > the 'preserve boundaries' option that I thought would account > for the > > different performance. > > > > but sure enough, the regular-quadric is performing better > (dropping less > > geometry for the same number of output faces) than the > quadric-texture > > filter. any ideas why? > > > > imran > > > > On Wed, Jul 16, 2008 at 9:55 AM, skunkwerk <sku...@gm... > <mailto:sku...@gm...>> wrote: > > > >> is that the source of the problem, you think? > >> who wrote the regular quadric filter? > >> would it be possible to copy-paste the code from the regular > quadric > >> filter > >> that handles boundary preservation to the quadric-texture one? > >> > >> imran > >> > >> > >> On Wed, Jul 16, 2008 at 4:19 AM, Marco Pirosu <pi...@gm... > <mailto:pi...@gm...>> wrote: > >> > >>> i think it wasn't part of the course project, so i didn't > implement it. > >>> It > >>> should be doable, through. > >>> > >>> On 7/16/08, skunkwerk <sku...@gm... > <mailto:sku...@gm...>> wrote: > >>> > >>>> there seems to be a difference in the performance of the > >>>> quadric-with-texture filter and the regular quadric. > >>>> > >>>> see these two files: > >>>> www.akbars.net/classicford.saved.dae > <http://www.akbars.net/classicford.saved.dae> (regular quadric) > >>>> www.akbars.net/classicford.savedtextured.dae > <http://www.akbars.net/classicford.savedtextured.dae> > (quadric-with-texture) > >>>> > >>>> the quadric-with-texture file has polygons missing from the > wheels, if > >>>> you look at them from the side. is this supposed to happen? > they were > >>>> both > >>>> reduced to about ~50,000 polygons. > >>>> > >>>> Is there a reason the quadric-with-texture filter doesn't have a > >>>> "preserve boundary" option? > >>>> > >>>> thanks, > >>>> imran > >>>> > >>>> > >>>> > ------------------------------------------------------------------------- > >>>> This SF.Net email is sponsored by the Moblin Your Move > Developer's > >>>> challenge > >>>> Build the coolest Linux based applications with Moblin SDK & > win great > >>>> prizes > >>>> Grand prize is a trip for two to an Open Source event > anywhere in the > >>>> world > >>>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > >>>> _______________________________________________ > >>>> Meshlab-devel mailing list > >>>> Mes...@li... > <mailto:Mes...@li...> > >>>> https://lists.sourceforge.net/lists/listinfo/meshlab-devel > >>>> > >>>> > >>> > >>> > ------------------------------------------------------------------------- > >>> This SF.Net email is sponsored by the Moblin Your Move Developer's > >>> challenge > >>> Build the coolest Linux based applications with Moblin SDK & > win great > >>> prizes > >>> Grand prize is a trip for two to an Open Source event anywhere > in the > >>> world > >>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > >>> _______________________________________________ > >>> Meshlab-devel mailing list > >>> Mes...@li... > <mailto:Mes...@li...> > >>> https://lists.sourceforge.net/lists/listinfo/meshlab-devel > >>> > >>> > >> > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > _______________________________________________ > Meshlab-devel mailing list > Mes...@li... > <mailto:Mes...@li...> > https://lists.sourceforge.net/lists/listinfo/meshlab-devel > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > ------------------------------------------------------------------------ > > _______________________________________________ > Meshlab-devel mailing list > Mes...@li... > https://lists.sourceforge.net/lists/listinfo/meshlab-devel > -- Paolo Cignoni -- Senior Researcher Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni ISTI - CNR Via Moruzzi 1, 56124 Pisa ITALY |
