[osg-users] Convert OSGB to Blender Formats

[OpenSceneGraph Users]

Hi Thomas,

I had others might provide some guidance as I don't have any experience
with Blender to share. The best I can do is provide general tips.

The OSG file format contains all state and internal nodes of a feature rich
scene graph, and the structure of the scene graph can be a deep hierarchy.

The .obj format is a very simple format and can't represent the majority of
the OSG's scene graph, so exporting from OSG to OBJ will only work well for
very limited scene graphs.

FBX might provide more capabilities, but again it won't represent much of
the OSG's scene graph so again there will be limits about what you'll be
able to export.

The OSG tends to be used for final graphics applications rather than for
data exchange, so the data tends to go from FBX/OBJ etc. to OSG.

Robert.

On Tue, 22 Sep 2020 at 13:05, OpenSceneGraph Users <
osg-users at lists.openscenegraph.org> wrote:

> Hello,
> I hope I can ask my questions here in this forum. If misplaced - sorry.
> Let me know if and where I can place them, if not here.
>
> I tied to run the osgconv.exe with different parameters on a model I
> created with MATCH-3DX (see screenshot about data structure) to create a
> textured OBJ mesh. It doesn't need to be OBJ. It can also be FBX or some
> other format I can read with Blender.
> Here some of my command lines I used:
>
> osgconv DSM_Mesh.osgb DSM_Mesh.obj
> osgconv -O OutputTextureFiles DSM_Mesh.osgb DSM_Mesh.obj
>
> The result is a small blank OBJ file without any geometry and texture. The
> reason may be the data structure from the OSGB output, which is a LOD OSGB,
> storing the OSGB result in multiple tiles of different levels.
> I used the osgviewer.exe which can read the result perfectly, therefore I
> hoped I can use it in the same way for the conversion.
>
> I used OpenSceneGraph Library 3.6.5
>
> Best regards,
> Thomas
>
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