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A question for expert modellers. [message #38977] Mon, 21 November 2011 17:48 UTC Go to next message
avatar goido  is currently offline goido
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I was warned about Poser models being virtually impossible to print but I also got advice with Meshlab and Netfabb. I created a character based on Poser Michael, I exported it as an OBJ file, I imported it in Meshlab and use filter- cleaning- remove duplicated vertex and then save it as a STL file; then I imported it into Netfabb where I healed-repair, I got a green file ( good! ) and uploaded to Shapeways that found this unfixable error. Triangles with mixed winding order found (inverted normals) "
I know they use mesh medic and a manual fix but of course with a little more complex problem they don't have the time. I tried to do something in Blender but it is very hard for a unexperience user. The model came as a spec of nothing and when I save it as a obj it did not import right into any 3d package.

Well here is the file. Any ideas?

Re: A question for expert modellers. [message #38980 is a reply to message #38977 ] Mon, 21 November 2011 18:27 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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You have 1034 folded triangles, 1669 intersected triangles and
7121 overlapped ones Smile

Basically what that means is your mesh is very unclean, you could try poisson remeshing in meshlab, but it'll give a clean and smooth mesh which is not what you're after i guess.

If you want to retain the glitchiness you can remove the intersecting faces and clean them up manually in a 3d software like Blender.

[Updated on: Mon, 21 November 2011 18:28 UTC]

Re: A question for expert modellers. [message #38982 is a reply to message #38980 ] Mon, 21 November 2011 18:35 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Thanks, where do I find poison remeshing? Doesit kill all the features? I just downloaded Blender and it is not very intuitive, the file came as a dot and Only after rescaling and zooming I saw it, I save it as an obj in Blender bit it did not import right in Bryce.
Re: A question for expert modellers. [message #38983 is a reply to message #38977 ] Mon, 21 November 2011 18:36 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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If you look at the head in Netfabb you can see that the surface is very rough:

https://lh3.googleusercontent.com/-FeoDeghs-qU/TsqYciLmCrI/AAAAAAAAEcI/ILiB1qxjv2c/s640/head%25252001.jpg


Zooming in, this is the area around the nose and an eye - there are a lot of intersecting triangles clashing with each other.

https://lh4.googleusercontent.com/-sVv5B5B03zw/TsqYc9bqMlI/AAAAAAAAEcY/UEbMklG4G5c/s720/head%25252002.jpg

Here's the eye again.

https://lh4.googleusercontent.com/-63l8Z0S2twA/TsqYcvcbpFI/AAAAAAAAEcA/CVBSUyAmFdg/s640/head%25252003.jpg

I had a quick go at cleaning it up in Blender, but it seemed that huge areas had to be deleted to sort out the messy bits.

Sorry I can't be more helpful,

Paul
Re: A question for expert modellers. [message #38984 is a reply to message #38983 ] Mon, 21 November 2011 18:41 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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OMG it looks as even with lots of expertise in Blender, which I don't have, it is an impossible task?
Re: A question for expert modellers. [message #38985 is a reply to message #38984 ] Mon, 21 November 2011 18:46 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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I really thought this dude would make a great stailess steel antique bronze statue.

  • Attachment: Mulato.jpg
    (Size: 268.53KB, Downloaded 64 time(s))

Re: A question for expert modellers. [message #38986 is a reply to message #38985 ] Mon, 21 November 2011 18:53 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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Oh! I thought it was meant to be some sort of abstract head.
It looks like you need to massively increase the resolution / number of faces. Never used Poser before though so I'm not sure how you'd go about doing that.
Re: A question for expert modellers. [message #38987 is a reply to message #38986 ] Mon, 21 November 2011 18:59 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Does Meshlab or Netfabb or even Blender could do this? The increasing of the resolution?
Re: A question for expert modellers. [message #38988 is a reply to message #38987 ] Mon, 21 November 2011 19:04 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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It can't really be done retrospectively to the existing STL due to all the clashing faces etc. I think you need to try exporting it from Poser again - perhaps try exporting as a Collada file instead, then convert that to STL in Meshlab.

[Updated on: Mon, 21 November 2011 19:09 UTC]

Re: A question for expert modellers. [message #38989 is a reply to message #38988 ] Mon, 21 November 2011 19:07 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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First say what you want to achieve, a glitchy model or a smooth one and the glitchiness is not welcome.
Re: A question for expert modellers. [message #38990 is a reply to message #38989 ] Mon, 21 November 2011 19:09 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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I would like a smooth one , I have the original OBJ file from Poser.

Re: A question for expert modellers. [message #38992 is a reply to message #38990 ] Mon, 21 November 2011 19:38 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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That looks much better - it looks great in Meshlab and Blender.

https://lh3.googleusercontent.com/-6WfJzPtYyWM/TsqoQTRPFKI/AAAAAAAAEcc/6eF9E24J23g/s912/head%252520pic00.jpg

The eyelashes are problematic though - still lots of clashing there. Can you get rid of them in Poser prior to export - and get rid of the eyeballs too if possible?

Re: A question for expert modellers. [message #38993 is a reply to message #38992 ] Mon, 21 November 2011 19:47 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Ok, now I am confused, Don't I need a STL file for 3D printing? Was the conversion to STL what killed the file?
Re: A question for expert modellers. [message #38994 is a reply to message #38993 ] Mon, 21 November 2011 19:50 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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Yes, STL is one of the file formats you can use for 3D printing. I don't know what happened when you tried converting it to STL, it worked fine when I tried with Meshlab.
Re: A question for expert modellers. [message #38995 is a reply to message #38994 ] Mon, 21 November 2011 19:56 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Wow!!! Does Shapeways accepts OBJ? I tried the filter remove duplicated vertex because I read it in the forums perhaps I should have left it alone.
Re: A question for expert modellers. [message #38996 is a reply to message #38995 ] Mon, 21 November 2011 19:57 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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Your mesh has overlapping parts so it's not printable without cleaning anyway.
Re: A question for expert modellers. [message #38997 is a reply to message #38995 ] Mon, 21 November 2011 19:58 UTC Go to previous messageGo to next message
avatar paulburkittgray  is currently offline paulburkittgray
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Looks like they do accept object - check the list here http://www.shapeways.com/upload/
Re: A question for expert modellers. [message #38998 is a reply to message #38997 ] Mon, 21 November 2011 20:00 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Is the obj easier to clean than the stl?
Re: A question for expert modellers. [message #38999 is a reply to message #38998 ] Mon, 21 November 2011 20:02 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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I doesn't matter, unless say poser exports them differently.
Re: A question for expert modellers. [message #39003 is a reply to message #38999 ] Mon, 21 November 2011 20:19 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Ok, reaching for straws here, I rexported the file, Poser would not let me delete the eyes or lashes so I did in Bryce and increase the resolution there. Probably the body is still with problems. Which program do you recommend for clean up?

Re: A question for expert modellers. [message #39004 is a reply to message #38999 ] Mon, 21 November 2011 20:20 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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Here you have a clean mesh.

Also the second mesh doesn't make a difference it still contains intersected geometry.

[Updated on: Mon, 21 November 2011 21:56 UTC]

Re: A question for expert modellers. [message #39005 is a reply to message #39004 ] Mon, 21 November 2011 20:26 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Is the intersected geometry fixable?
Re: A question for expert modellers. [message #39006 is a reply to message #39005 ] Mon, 21 November 2011 20:28 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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It is fixed.
Re: A question for expert modellers. [message #39007 is a reply to message #39006 ] Mon, 21 November 2011 20:31 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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What???? The second STL is uploadable to Shapeways?? The one you just provided?
Re: A question for expert modellers. [message #39008 is a reply to message #39007 ] Mon, 21 November 2011 20:33 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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It's clean just needs to be solidified.
After that it is uploadable.
Re: A question for expert modellers. [message #39009 is a reply to message #39008 ] Mon, 21 November 2011 20:36 UTC Go to previous messageGo to next message
avatar goido  is currently offline goido
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Ok, new term for the inexperienced Razz Solidified and how do you do that?
Re: A question for expert modellers. [message #39010 is a reply to message #39009 ] Mon, 21 November 2011 20:38 UTC Go to previous messageGo to next message
avatar frmdbl  is currently offline frmdbl
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Ok, how about you donate my paypal with a couple of bucks and tell me the scale and thickness and I give you the model?
Re: A question for expert modellers. [message #39011 is a reply to message #39010 ] Mon, 21 November 2011 20:41 UTC Go to previous message
avatar goido  is currently offline goido
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Ok, I go to your store or do I do that?

 
   
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