u3d: colors and textures

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On some OS the u3d exporter has problems with textures that are not in the same exact dir of the master file.
Try to change the dae file so that all the textures are in the same dir of the dae and (hopefully) should work

For the per vertex color there are problem with the AcrobatReader renderer (it seems not very consistent with the specs).
We are working on it.

p.

I have also had problems converting a 3ds file to a u3d file with textures using the following command:

meshlabserver -i file.3ds -o file.u3d -om wt

IDTFConverter bailed out as the generated idtf file was broken. I was using meshlab 1.3.0a. The following patch fixed my problem:

-8<----------------------------------------------------------------
--- meshlab-130a.org/vcglib/wrap/io_trimesh/export_idtf.h 2011-01-25 08:53:42.000000000 +0100
+++ meshlab-130a.fixed/vcglib/wrap/io_trimesh/export_idtf.h 2011-04-08 12:58:04.000000000 +0200
@@ -169,7 +169,7 @@
//QString moutfile = QString("C:/Users/Guido/AppData/Local/Temp/duckCM.tga");

            QFile file(qPrintable(outfile));

• file.setPermissions(QFile::WriteOther);
• file.setPermissions(QFile::WriteOwner | QFile::ReadOwner);
  file.open(QIODevice::WriteOnly);
  QString err = file.errorString();
  //bool val = file.failbit;
  @@ -359,25 +359,20 @@
  idtf.write(2,"ATTRIBUTE_USE_VERTEX_COLOR \"" + vertcol + "\"");
  idtf.write(2,"SHADER_MATERIAL_NAME \"Mat01\"");

-
- int texcount = 0;
- if (mask & vcg::tri::io::Mask::IOM_WEDGTEXCOORD)
- texcount = m.textures.size();
-
-
- idtf.write(2,"SHADER_ACTIVE_TEXTURE_COUNT " + TextUtility::nmbToStr(texcount));
if (mask & vcg::tri::io::Mask::IOM_WEDGTEXCOORD)
{
+ idtf.write(2,"SHADER_ACTIVE_TEXTURE_COUNT 1");
idtf.write(2,"SHADER_TEXTURE_LAYER_LIST {");
idtf.write(3,"TEXTURE_LAYER 0 {");
idtf.write(4,"TEXTURE_NAME \"Texture" + TextUtility::nmbToStr(ii) +"\"");
idtf.write(3,"}");
idtf.write(2,"}");
}
+ else
+ idtf.write(2,"SHADER_ACTIVE_TEXTURE_COUNT 0");

-
+ idtf.write(1,"}");
}
- idtf.write(1,"}");
idtf.write(0,"}");
idtf.write(0,"");
}
@@ -653,4 +648,4 @@
}
}

-#endif
\ No newline at end of file
+#endif
-8<----------------------------------------------------------------

Sorry about the broken lines in the patch in my previous comment. Do you have anywhere I can post the patch?

The patch has now been uploaded to https://sourceforge.net/tracker/?func=detail&atid=774733&aid=3285435&group_id=149444