Blender lowpoly problem! Can you help?

heribertovalle · 19-11-2009, 01:01 PM

Hey there good people!

I'm Heriberto from www.imagineergames.com I wanted to ask for some advice for you blender knowledgeable people.

Basically, We had two models ready for our Shades of Violet Game. Regrettably, some of the UVs were not quite right, so I asked the modeller to make slight corrections. Now, what we usually do is we get the Blender model, export to OBJ from blender, then Bring into max. Usually, the imported model has a lot of normals wrong, but nothing a good session of flipping can't correct.

The problem, is now with the corrected models, when I try to bring them as OBJs into max... I get a strange error that reads "Polygon Index Error". The modeler is actually oblivious to what is going wrong. I tried to export in other formats to no avail. I had some sucess with the 3ds format, but it imports without UV´s so that´s kind of missing the point.

So... Can you help? exporting ideas? Correction suggestions? Help?

I will appreciate your help on this a lot. Thanks in advance!

BoSoft · 19-11-2009, 04:58 PM

Hi,

not sure what exactly the problem is, but .obj-files store the vertices/normals/texcoords in simple lists. Each polygon has at least three indices which tell you which vertices to use for the polygon. So a polygon can share vertices/normals/texcoords with other polygons.

"Polygon Index Error" could have many reasons. Maybe an index is missing or there is no vertex for one of the indices? Is the model triangulated, same vertex count for each polygon? How did the modeller correct the models? .obj-files are simple text files you can open with any editor, maybe you can see the error in the file itself.

What about .fbx export?

heribertovalle · 19-11-2009, 05:41 PM

Hey there! Thanks for answering. .FBX export results in a box with nothing interesting enough (and yes I've fiddled with the export selections so the answer doesn't seem to be there)

Let me send your comment to the modeller too, he merely adjusted UV coordinates there, remodelled facial details, etc. Since it was a fairly large correction, I left it to him instead of finishing it myself.

Thank you! anybody else got ideas?

obibok · 19-11-2009, 06:15 PM

i dont know if it will help you but usually when i have this problem i trying to separate all parts of my models (if its one peace i separate by uv groups...) then i export them separately.... it helps in most cases ( if i wont help at least i know which part courses errors

19-11-2009, 01:01 PM	#1
heribertovalle Registered User Join Date: Oct 2008 Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts	Blender lowpoly problem! Can you help? Hey there good people! I'm Heriberto from www.imagineergames.com I wanted to ask for some advice for you blender knowledgeable people. Basically, We had two models ready for our Shades of Violet Game. Regrettably, some of the UVs were not quite right, so I asked the modeller to make slight corrections. Now, what we usually do is we get the Blender model, export to OBJ from blender, then Bring into max. Usually, the imported model has a lot of normals wrong, but nothing a good session of flipping can't correct. The problem, is now with the corrected models, when I try to bring them as OBJs into max... I get a strange error that reads "Polygon Index Error". The modeler is actually oblivious to what is going wrong. I tried to export in other formats to no avail. I had some sucess with the 3ds format, but it imports without UV´s so that´s kind of missing the point. So... Can you help? exporting ideas? Correction suggestions? Help? I will appreciate your help on this a lot. Thanks in advance! Attached Images __________________ Imagineer Games Imagineers of flights of fancy

19-11-2009, 05:41 PM	#3
heribertovalle Registered User Join Date: Oct 2008 Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts	Hey there! Thanks for answering. .FBX export results in a box with nothing interesting enough (and yes I've fiddled with the export selections so the answer doesn't seem to be there) Let me send your comment to the modeller too, he merely adjusted UV coordinates there, remodelled facial details, etc. Since it was a fairly large correction, I left it to him instead of finishing it myself. Thank you! anybody else got ideas? __________________ Imagineer Games Imagineers of flights of fancy

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19-11-2009, 04:58 PM	#2
BoSoft Registered User Join Date: Nov 2009 Location: Germany Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	Hi, not sure what exactly the problem is, but .obj-files store the vertices/normals/texcoords in simple lists. Each polygon has at least three indices which tell you which vertices to use for the polygon. So a polygon can share vertices/normals/texcoords with other polygons. "Polygon Index Error" could have many reasons. Maybe an index is missing or there is no vertex for one of the indices? Is the model triangulated, same vertex count for each polygon? How did the modeller correct the models? .obj-files are simple text files you can open with any editor, maybe you can see the error in the file itself. What about .fbx export?

19-11-2009, 06:15 PM	#4
obibok Registered User Join Date: Sep 2006 Location: Szczecin Poland Posts: 107 Thanks: 0 Thanked 1 Time in 1 Post Awards Showcase Total Awards: 2	i dont know if it will help you but usually when i have this problem i trying to separate all parts of my models (if its one peace i separate by uv groups...) then i export them separately.... it helps in most cases ( if i wont help at least i know which part courses errors

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