[X3D-Public] Blender Export to X3D

[JOHN COADY]

Hi 

   Thanks for the link on how you used blender, it would be nice if you didn't need to edit the X3D file generated by blender to get a correct result. One of the things I tried was to first export to a collada file from Blender, and then Import the collada into X3D-Edit and then have X3D-Edit convert it to X3D. Then compare that result with what Blender produced with its Export to X3D method. In a couple of test blender scenes that I tried the results were different. I used blender scenes from the new book "Blender Foundations" which uses the new blender user interface found in Blender version 2.5 . The blender scenes in this book don't work with the older versions of blender.

However, some of these blender scenes can be quite large, a few meg in size when converted to collada, and X3D-Edit complains that they are too big. Also, X3D-Edit was not able to convert this Collada file to X3D which was taken from chapter 9 in the book and Exported from Blender.

http://dl.dropbox.com/u/5095342/Models/demo_scene_chapter_09.dae

Do you know why X3D-Edit can't convert this scene to X3D. This 2 step conversion process, first to Collada and then to X3D is one way to test, correct and compare the results from what the Export to X3D function provides in blender.




----- Original Message -----
From: Don Brutzman <brutzman at nps.edu>
Date: Sunday, December 12, 2010 4:00 am
Subject: Re: [X3D-Public] Blender Export to X3D
To: x3d-public at web3d.org
Cc: SAVAGE <SAVAGE at nps.edu>, Benjamin Anderson <bsa.drums at gmail.com>, Claudio Coreixas de Moraes <ccoreixa at nps.edu>

> Hi John.  I used Blender and found some bugs too.  
> Like you,
> they were fixed immediately.  Very impressive.
> 
> The page describing how we used Blender is at
> https://savage.nps.edu/X3D-Edit/BlenderExportToX3d.html
> 
> If you see anything on that page which needs to get fixed, please
> let me know. Thanks for the good news regarding their continued
> support for X3D.
> 
> > On 12/12/2010 3:42 AM, JOHN COADY wrote:
> >> I installed Blender the other day and tried exporting a 
> blender scene to X3D and there were a lot of obvious errors in 
> the resulting X3D scene (The objects were not positioned 
> properly in the X3D scene). So I submitted a bug report and they 
> fixed the problem I reported the next day. I am a new user to 
> Blender and if the Export to X3D functionality had a basic bug 
> such as positioning objects correctly, I'm sure that there are 
> other problems with the Export to X3D. Does anyone have any 
> ideas on how to test this properly. Blender seems to have a lot 
> of configurable options to play with, and if X3D has some 
> equivalent functionality then it would be nice to know when you 
> Export to X3D that the X3D nodes get used properly.
> >>
> >> In the latest Beta release of Blender, they completely 
> changed the user interface to make it more user friendly. They 
> seem to be working hard to get the next major release out and 
> that is why the bug that I reported got fixed right away. It 
> would be nice to fix as many problems with Export to X3D before 
> the next major release if anyone has any ideas on how to test it 
> properly.
> all the best, Don
> -- 
> Don Brutzman  Naval Postgraduate School, Code 
> USW/Br      brutzman at nps.edu
> Watkins 270   MOVES Institute, Monterey CA 93943-5000 
> USA  +1.831.656.2149
> X3D, virtual worlds, underwater robots     
> http://faculty.nps.edu/brutzman
> 
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