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From: skunkwerk <sku...@gm...> - 2008-07-22 23:49:58
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paolo, you're correct, the assert was happening on a null image, even though i've put in a check to not do anything on null images... but i don't think any changes are necessary. i'll test out the texturedouble.ply and report back my findings i have been testing out this model (a simple cube with a different texture on every face):www.akbars.net/boxAtlasbig.zip the texture atlas is generated fine, but the resulting model does not look right. i looked through the debug output, and as far as i can see, each material's uvs are offset to the correct part of the texture atlas (i did this by comparing the material number of that face and its uvs to the position of that material in the atlas. the second division is the final uv that's saved): ------------------ material 0 position: 805 , 1073 U: 1.10381 V: 1.98863 new (first division) U: 0.839221 new V: 0.740719 new (second division) U: 0.955932 new V: 0.769647 ------------------ material 0 position: 805 , 1073 U: 0.788531 V: 0.303902 new (first division) U: 0.599517 new V: 0.113197 new (second division) U: 0.897179 new V: 0.593546 ------------------ material 0 position: 805 , 1073 U: 0.788531 V: 1.98863 new (first division) U: 0.599517 new V: 0.740719 new (second division) U: 0.897179 new V: 0.769647 ------------------ material 0 position: 805 , 1073 U: 0.788531 V: 0.303902 new (first division) U: 0.599517 new V: 0.113197 new (second division) U: 0.897179 new V: 0.593546 ------------------ material 0 position: 805 , 1073 U: 1.10381 V: 1.98863 new (first division) U: 0.839221 new V: 0.740719 new (second division) U: 0.955932 new V: 0.769647 ------------------ material 0 position: 805 , 1073 U: 1.10381 V: 0.303902 new (first division) U: 0.839221 new V: 0.113197 new (second division) U: 0.955932 new V: 0.593546 ------------------ material 3 position: 0 , 1073 U: 1.98863 V: 0 new (first division) U: 0.740719 new V: 0 new (second division) U: 0.555712 new V: 0.56178 ------------------ material 3 position: 0 , 1073 U: 0.303902 V: 1.00833 new (first division) U: 0.113197 new V: 0.502075 new (second division) U: 0.084924 new V: 0.720026 ------------------ material 3 position: 0 , 1073 U: 0.303902 V: 0 new (first division) U: 0.113197 new V: 0 new (second division) U: 0.084924 new V: 0.56178 ------------------ material 3 position: 0 , 1073 U: 0.303902 V: 1.00833 new (first division) U: 0.113197 new V: 0.502075 new (second division) U: 0.084924 new V: 0.720026 ------------------ material 3 position: 0 , 1073 U: 1.98863 V: 0 new (first division) U: 0.740719 new V: 0 new (second division) U: 0.555712 new V: 0.56178 ------------------ material 3 position: 0 , 1073 U: 1.98863 V: 1.00833 new (first division) U: 0.740719 new V: 0.502075 new (second division) U: 0.555712 new V: 0.720026 ------------------ material 2 position: 805 , 1609 U: 1.10381 V: 0 new (first division) U: 0.839221 new V: 0 new (second division) U: 0.905876 new V: 0.842408 ------------------ material 2 position: 805 , 1609 U: 0.788531 V: 1.00833 new (first division) U: 0.599517 new V: 0.502075 new (second division) U: 0.86142 new V: 0.921531 ------------------ material 2 position: 805 , 1609 U: 1.10381 V: 1.00833 new (first division) U: 0.839221 new V: 0.502075 new (second division) U: 0.905876 new V: 0.921531 ------------------ material 2 position: 805 , 1609 U: 0.788531 V: 1.00833 new (first division) U: 0.599517 new V: 0.502075 new (second division) U: 0.86142 new V: 0.921531 ------------------ material 2 position: 805 , 1609 U: 1.10381 V: 0 new (first division) U: 0.839221 new V: 0 new (second division) U: 0.905876 new V: 0.842408 ------------------ material 2 position: 805 , 1609 U: 0.788531 V: 0 new (first division) U: 0.599517 new V: 0 new (second division) U: 0.86142 new V: 0.842408 ------------------ material 5 position: 310 , 1675 U: 0.620122 V: 0 new (first division) U: 0.214271 new V: 0 new (second division) U: 0.346621 new V: 0.876963 ------------------ material 5 position: 310 , 1675 U: 2.51422 V: 1.26042 new (first division) U: 0.86874 new V: 0.557604 new (second division) U: 0.522895 new V: 0.942942 ------------------ material 5 position: 310 , 1675 U: 2.51422 V: 0 new (first division) U: 0.86874 new V: 0 new (second division) U: 0.522895 new V: 0.876963 ------------------ material 5 position: 310 , 1675 U: 2.51422 V: 1.26042 new (first division) U: 0.86874 new V: 0.557604 new (second division) U: 0.522895 new V: 0.942942 ------------------ material 5 position: 310 , 1675 U: 0.620122 V: 0 new (first division) U: 0.214271 new V: 0 new (second division) U: 0.346621 new V: 0.876963 ------------------ material 5 position: 310 , 1675 U: 0.620122 V: 1.26042 new (first division) U: 0.214271 new V: 0.557604 new (second division) U: 0.346621 new V: 0.942942 ------------------ material 4 position: 0 , 1675 U: 0.264336 V: 0 new (first division) U: 0.0851076 new V: 0 new (second division) U: 0.0245884 new V: 0.876963 ------------------ material 4 position: 0 , 1675 U: 2.37024 V: 1.26042 new (first division) U: 0.76314 new V: 0.557604 new (second division) U: 0.220478 new V: 0.942942 ------------------ material 4 position: 0 , 1675 U: 0.264336 V: 1.26042 new (first division) U: 0.0851076 new V: 0.557604 new (second division) U: 0.0245884 new V: 0.942942 ------------------ material 4 position: 0 , 1675 U: 2.37024 V: 1.26042 new (first division) U: 0.76314 new V: 0.557604 new (second division) U: 0.220478 new V: 0.942942 ------------------ material 4 position: 0 , 1675 U: 0.264336 V: 0 new (first division) U: 0.0851076 new V: 0 new (second division) U: 0.0245884 new V: 0.876963 ------------------ material 4 position: 0 , 1675 U: 2.37024 V: 0 new (first division) U: 0.76314 new V: 0 new (second division) U: 0.220478 new V: 0.876963 ------------------ material 1 position: 0 , 0 U: 1.89619 V: 0.303902 new (first division) U: 0.70629 new V: 0.113197 new (second division) U: 0.70629 new V: 0.0635917 ------------------ material 1 position: 0 , 0 U: 0.211469 V: 1.98863 new (first division) U: 0.0787676 new V: 0.740719 new (second division) U: 0.0787676 new V: 0.416121 ------------------ material 1 position: 0 , 0 U: 0.211469 V: 0.303902 new (first division) U: 0.0787676 new V: 0.113197 new (second division) U: 0.0787676 new V: 0.0635917 ------------------ material 1 position: 0 , 0 U: 0.211469 V: 1.98863 new (first division) U: 0.0787676 new V: 0.740719 new (second division) U: 0.0787676 new V: 0.416121 ------------------ material 1 position: 0 , 0 U: 1.89619 V: 0.303902 new (first division) U: 0.70629 new V: 0.113197 new (second division) U: 0.70629 new V: 0.0635917 ------------------ material 1 position: 0 , 0 U: 1.89619 V: 1.98863 new (first division) U: 0.70629 new V: 0.740719 new (second division) U: 0.70629 new V: 0.416121 global: 1073 , 1910 inserted texture 0 into atlas at position: 805 1073 inserted texture 1 into atlas at position: 0 0 inserted texture 2 into atlas at position: 805 1609 inserted texture 3 into atlas at position: 0 1073 inserted texture 4 into atlas at position: 0 1675 inserted texture 5 into atlas at position: 310 1675 On Tue, Jul 22, 2008 at 4:30 PM, Paolo Cignoni <pao...@is...> wrote: > skunkwerk wrote: > > Hey Sebastian, > > this one worked for me: www.akbars.net/10.zip > > i've been testing with collada models from > > sketchup.google.com/3dwarehousebut that's because my version of the > > collada importer works ok with the > > textures - i don't think the one in subversion has been fixed yet... > > > > try increasing the size of the texture atlas until i can get the > resampled > > tiles working. i'm going to test out the results on a simple box today > > > > paolo, the rect_packer.cpp has a bunch of asserts in it... i'd like to > > change them to return false, so that the atlas will fail, but not crash > > whenever some of the images are null, etc. the other way would be to try > to > > do those checks in the filter itself. which would you recommend? > > > > imran > > > > On Tue, Jul 22, 2008 at 3:25 AM, Sebastian Herholz < > > seb...@go...> wrote: > > > > > > I have tried too the atlas builder but it failed to build a correct mesh > (but without crashing :) ) on the very very simple model > texturedouble.ply that you can find among the meshlab sample models. > > This model is composed by just two squares, each one of them textured > with a different texture. > your filter builds a correct atlas texture but it assigns wrong tex > coords to the mesh. > > > About the rect packer what are exactly the asserts that worry you? > From what i could see you they trigger on very trashy situations that > should be cleaned before (zero sized textures and so on). I could have > missed some, so what assert()'s did you refer to? > > cheers > > -- > 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 > |
