[osg-submissions] Inventor Writer

[PCJohn]

Sorry,
forgot to attach two files. Sending once again.

Except the writer, improvements in "reader":
- support for transparent textures

John



PCJohn napsal(a):
> Hi Robert,
> 
> in the company, we developed writer to two file formats:
> - Inventor
> - VRML1
> 
> I tested it on several models from OSG package and it seems to work well 
> on the most of models.
> 
> I am submitting it for inclusion into the OSG.
> I just zipped changed files from src/osgPlugins/Inventor directory.
> 
> Feel free to send me comments on problematic models (if you find any) or 
> compiling problems (I tested on MSVC 2003 only).
> 
> Feedback from people using SGI Inventor is also welcomed. Just send me 
> your problems. Thanks for them.
> 
> Just one question:
> I noticed collision between VRML 1 and VRML 2 (VRML97) file formats,
> because both of them are using the same file extension (wrl).
> VRML 2 is successor of VRML 1, however it is not compatible with it.
> They can be distinguished by the header - first line in the file - and 
> whole family of this formats is using this header approach instead of 
> file extensions.
> Therefore, it would be difficult for an user to specify, which format he 
> wants. (I prefer VRML 1, however, if both VRML 1/2 plugins exists, 
> people may receive files in random formats.)
> 
> Hope, the community will be happy with the new writer.
> John
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