|
From: skunkwerk <sku...@gm...> - 2008-08-24 16:13:51
|
haha, i'll be the first to admit i'm not the greatest programmer on the planet. but i learn fast, and am determined enough to spend however much time it takes. it couldn't hurt if i try to work on this, could it? perhaps you could assign one of your students in the new term to take the lead? it seems like the CGAL library has a clean interface to LSCM - you input a mesh, and it outputs a uv pair for each vertex: http://www.cgal.org/Manual/3.3/doc_html/cgal_manual/Surface_mesh_parameterization/Chapter_main.html imran On Sat, Aug 23, 2008 at 5:06 PM, Paolo Cignoni <pao...@is...>wrote: > Dear Imran, > > sorry for speaking so frankly, but from many of your last emails I got the > precise feeling that detail transfer and unwrapping are a task too hard for > you. > Your last email revealed that probably you still have C++ doubts at a basic > level. > Particularly I am referring to your last email (but others examples could > be found) where you said: > ... > skunkwerk wrote: > > I've noticed when you're random-accessing vertices, you apparently need > to do: m.vert[f.V(c)-&(*m.vert.begin())], where f is the face and V is the > vertex. > > 1) I'm not quite sure while you need the m.vert.begin, as doesn't f.V() > hold the absolute index of the vertex you want? > > 2) And if you do need it, wouldn't you also need to do a similar thing > for random-accessing faces too? > > Because all I'm doing right now is: m.face[(*fit)], where fit is a face > iterator. > ... > > Teaching a CG class at the university since 1997 I think that I can say you > that you should invest a bit more time on studying the C++ basis following a > structured course book instead of jumping directly in the middle of a rather > complex C++ system based on a convoluted templated library. That would > surely shorten the time you spend in coding and debugging in C++. > > If you really want to contribute, spend a bit more time in testing > debugging the whole meshlab, not only your plugin, e.g. try to find crash > points, and writing down repeatable sequence of actions that lead in a > deterministic way to a crash. and leave to more experienced coders the > burden of patch it in the best way (if possible). > That would be really a valuable contribution to the whole project. > > Thanks > > p. > > > > > skunkwerk wrote: > > Paolo, > i'd like to again request your permission to start work on the normal > mapping/detail transfer plugin. i can continue to try and fix the last > remaining bug with the texture atlas (when you increase its size), but I > don't see any way to make it faster besides removing the qDebug statements > from it... and I don't have anything else left to work on anyway :0 > > would the first place to start be the filter_sampling.cpp file, to add > normals as an option to the attribute transfer? > i've been looking at the lscm code to unwrap models... Blender seems to be > using the superLU library as a numerical solver. I'm not sure how to > interface with it the code at this point... > > thanks, > imran > > 2008/7/22 Paolo Cignoni <pao...@is...> > >> No. >> >> You have to choose one of the following possibility >> - select more than a single file in the open dialog >> - open a mesh and then use the open as a new layer menu entry >> - open a mesh and press the "+" button. >> >> http://meshlab.sourceforge.net/wiki/index.php/Layers >> >> >> skunkwerk wrote: >> >> ah.. cool. I opened up the same model twice (so they're 2 windows now) but >> still don't see more than one mesh option in the hausdorff distance >> filter... am i doing something wrong? >> >> On Mon, Jul 21, 2008 at 10:46 PM, Paolo Cignoni <pao...@is...> <pao...@is...> >> wrote: >> >> >> >> skunkwerk wrote: >> >> hey paolo, >> i was looking at the filter_sampling plugins - both the distance and >> 'vertex attribute transfer' plugins require 2 meshes to compare - how would >> you get meshlab to load 2 models, such as one of the original and one of the >> model after a filter has run on it? >> >> >> Dont tell me that you have missed the whole layer mechanism... >> it was one of the main feature of the 1.1 version... >> http://meshlab.sourceforge.net/wiki/index.php/Release_Notes_1.1.0 >> >> >> would normal mapping require adding a "normals" option to the vertex >> attribute transfer plugin? then you'd have to bake the normals into a >> texture, right? >> >> >> >> in a short future, >> yes. >> >> imran >> >> 2008/6/25 Paolo Cignoni <pao...@is...> <pao...@is...> <pao...@is...> <pao...@is...>: >> >> >> >> skunkwerk wrote: >> >> hi Paolo, >> i was looking at software that could do normal mapping and noticed it >> was listed as one of the plugin projects in meshlab. >> >> is anyone working on it yet? anyone else interested in helping? >> >> I read your paper on normal mapping from a few years ago. Do I need to get >> the texture atlas plugin fixed before starting on the detail transfer? >> >> yes complete the texture atlas first. >> >> about the redetailing stuff: it is almost in. If you look at the new >> filter_sampling tool you can find all the basic pieces: closest retrieval >> and texel sampling. >> I think that adding a attribute transfer is matter of a few lines of code. >> consider it already done. >> (yes i have to remove it from the projecgts :) ) >> p. >> >> >> >> imran >> >> ------------------------------ >> >> ------------------------------------------------------------------------- >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for >> just about anything Open Source.http://sourceforge.net/services/buy/index.php >> >> ------------------------------ >> >> ______________________________ >> _________________ >> Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel >> >> >> >> >> >> >> -- >> Paolo Cignoni -- Senior Researcher >> Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> >> >> >> >> ISTI - CNR >> Via Moruzzi 1, >> 56124 Pisa >> ITALY >> >> >> ------------------------------------------------------------------------- >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for >> just about anything Open Source.http://sourceforge.net/services/buy/index.php >> ______________________________ >> _________________ >> Meshlab-devel mailing lis...@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 worldhttp://moblin-contest.org/redirect.php?banner_id=100&url=/ >> >> ------------------------------ >> >> _______________________________________________ >> Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel >> >> >> >> >> >> -- >> Paolo Cignoni -- Senior Researcher >> Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> <http://vcg.isti.cnr.it/%7Ecignoni> >> >> ISTI - CNR >> Via Moruzzi 1, >> 56124 Pisa >> ITALY >> >> >> ------------------------------------------------------------ >> ------------- >> 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 worldhttp://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Meshlab-devel mailing lis...@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 worldhttp://moblin-contest.org/redirect.php?banner_id=100&url=/ >> >> ------------------------------ >> >> _______________________________________________ >> Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel >> >> >> >> -- >> Paolo Cignoni -- Senior Researcher >> Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni> >> >> ISTI - CNR >> Via Moruzzi 1, >> 56124 Pisa >> ITALY >> >> >> ------------------------------------------------------------------------- >> 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 >> >> > ------------------------------ > > ------------------------------------------------------------------------- > 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 worldhttp://moblin-contest.org/redirect.php?banner_id=100&url=/ > > ------------------------------ > > _______________________________________________ > Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel > > > > -- > Paolo Cignoni -- Senior Researcher > Visual Computing Laboratory - ISTI - CNR http://vcg.isti.cnr.it/~cignoni <http://vcg.isti.cnr.it/%7Ecignoni> > > ISTI - CNR > Via Moruzzi 1, > 56124 Pisa > ITALY > > > ------------------------------------------------------------------------- > 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 > > |
