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From: Paolo C. <pao...@is...> - 2008-08-24 00:07:10
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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... > <mailto: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...> <mailto: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...> <mailto:pao...@is...> <pao...@is...> <mailto: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 >>> <mailto: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> >>> 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 <mailto: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=/ <http://moblin-contest.org/redirect.php?banner_id=100&url=/> >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Meshlab-devel mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/meshlab-devel <mailto: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> 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=/ >>> <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 >> > > > -- > 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=/ > <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 |
