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Rayek
07-13-2006, 02:18 AM
Have a look at:

http://www.skinprops.com/fr_kamakazi.htm

I tried loading this in Lightwave, Blender, C4d, Motionbuilder 5.5, Accutrans, Moho (no, not Modo!), Modo201 and Hexagon. All failed or crashed (Blender, Modo and Motionbuilder crashed). Lightwave did manage to load this, but one of the vertices was off and three materials just disappeared. The colours were converted to grey.

It seems Maya and Max have the same kind of problems.

And here I was thinking wavefront .obj files were quite compatible in all apps... Silly me. ;-)

Wickster
07-13-2006, 02:38 AM
Have a look at:

http://www.skinprops.com/fr_kamakazi.htm

I tried loading this in Lightwave, Blender, C4d, Motionbuilder 5.5, Accutrans, Moho (no, not Modo!), Modo201 and Hexagon. All failed or crashed (Blender, Modo and Motionbuilder crashed). Lightwave did manage to load this, but one of the vertices was off and three materials just disappeared. The colours were converted to grey.

It seems Maya and Max have the same kind of problems.

And here I was thinking wavefront .obj files were quite compatible in all apps... Silly me. ;-)

You're right I'm getting the offsided point. Then waiting a while longer, modeler crashes.

To get the materials to show up you might want to get Dodgy's MTL import/export plugin here (http://dodgy.ghostoutpost.com/). (in the Plugins page under the Modeler Scripts.

I got the material to appear except the GreenRed bottom face.

Rayek
07-13-2006, 02:57 PM
So I told the programmer of Accutrans3D about this issue this morning. And he sends me a (beta) version that correctly imports the object this evening!

Excellent service. It seems Accutrans3D is now the only (!) app outside Riptide (plugin for Cinema4D) that fully understands .obj files, even with exotic properties and material labels.

Again, great job!

R.

MicroMouse
07-13-2006, 03:21 PM
AccuTrans had to be fixed for two conditions in that OBJ file.

One condition was the use of an obsolete keyword called "fo" instead of "f" for facets / polygons. I had never heard of "fo".

Polygons can have multiply sides in an OBJ file and there is a continuation keyword when more than one line is needed to describe the polygon. AccuTrans supported the continuation keyword for polygons but this example OBJ file put the keyword on a line describing a vertex. As I never thought someone would use the keyword on such a short line there was previously no support.

Wayne