[osg-users] [osgPlugins] using osgconv with fbx?

[Kevin Steele]

Hi,

I am trying to use osgconv to convert fbx to osg (on a Mac). I had downloaded and installed osg before and I was able to convert obj to osg. Then, I wanted to use fbx.

When I tried to convert fbx to osg, I got an error message that said:
Warning: Could not find plugin to read objects from file "creature.fbx"

I read online that we needed to download and install the FBX SDK which I believe I did do. However, I don't know what to do next to get osgconv to find and use the right fbx plugin. Any advice?

Thank you!

Cheers,
Kevin

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[Robert Osfield]

Hi Kevin,

You will need to recompile the OSG again making sure that it picks up
on the FBX SDK you've installed.

Robert

[Kevin Steele]

Hi,

You say to make sure that OSG picks up on the FBX SDK. How do I do that? I tried to recompile OSG, but it didn't seem to pick up the FBX SDK.

Thank you!

Cheers,
Kevin

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[Robert Osfield]

On 15 February 2017 at 23:32, Kevin Steele <kwst...@optonline.net> wrote:
> You say to make sure that OSG picks up on the FBX SDK. How do I do that? I tried to recompile OSG, but it didn't seem to pick up the FBX SDK.

To configure the build you use:

ccmake .

Then scroll down to the entry for FBX.

Robert

[Voerman, L.]

Hi Kevin,

seems like the fbx plugin is not used very much on apple, and is a bit outdated.

I don't have an apple, but you can try to update "OpenSceneGraph\CMakeModules\FindFBX.cmake" with the attached version,

I added a search path for fbx 2017.1 sdk and the subdir for the clang compiler.

Laurens.

On Thu, Feb 16, 2017 at 9:33 AM, Robert Osfield <robert....@gmail.com> wrote:

On 15 February 2017 at 23:32, Kevin Steele <kwst...@optonline.net> wrote:
> You say to make sure that OSG picks up on the FBX SDK. How do I do that? I tried to recompile OSG, but it didn't seem to pick up the FBX SDK.

To configure the build you use:

     ccmake .

Then scroll down to the entry for FBX.

Robert

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[Kevin Steele]

Hi,
Thanks for the suggestions, but it is still not working.
I added the paths for FBX_INCLUDE_DIR, FBX_LIBRARY, and FBX_LIBRARY_DEBUG in CmakeCache.txt. Then, I recompiled OSG.

However, when I tried to convert from fbx to osg, I got this error message:

"osgconv dragon.fbx dragon6.osg
Warning: dynamic library '/usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so' exists, but an error occurred while trying to open it:
dlopen(/usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so, 9): Library not loaded: @executable_path/libfbxsdk.dylib
Referenced from: /usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so
Reason: image not found
Warning: Could not find plugin to read objects from file "dragon.fbx".
Error no data loaded"

Any idea how to fix that error?

Also, I can't see the attachment someone on this board tried to attach- there is a note that says: The Extension 'cmake' was deactivated by an board admin, therefore this Attachment is not displayed.

Thank you!

Cheers,
Kevin

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[Voerman, L.]

Hi Kevin,

you solved the build problem, so never mind the cmake file.

the libsfxsdk.dylib needs to be in your library path, as it's needed to load osgdb_fbx.so 

A quick search suggests you could add "/Applications/Autodesk/FBX SDK/2017.1/lib/clang/release/libfbxsdk.dylib" to DYLD_LIBRARY_PATH or get the path into 

osgdb_fbx with the linker option "-install_name" .

Laurens.

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[Kevin Steele]

Hi, I tried that suggestion, but I still can't get osgconv to work with fbx.

I opened up the terminal and executed the command:

export DYLD_LIBRARY_PATH=/Applications/Autodesk/FBX\ SDK/2017.1/lib/clang/release/libfbxsdk.dylib

Then, I tried to use osgconv with an fbx file and I got the following error message:

osgconv animal.fbx animal.osg

Warning: dynamic library '/usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so' exists, but an error occurred while trying to open it:
dlopen(/usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so, 9): Library not loaded: @executable_path/libfbxsdk.dylib
Referenced from: /usr/local/lib/osgPlugins-3.4.0/osgdb_fbx.so

Reason: no suitable image found. Did find:
/Applications/Autodesk/FBX SDK/2017.1/lib/clang/release/libfbxsdk.dylib/libfbxsdk.dylib: stat() failed with errno=20
Warning: Could not find plugin to read objects from file "animal.fbx".
Error no data loaded.

Any other ideas?

Thanks,

Kevin

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[Voerman, L.]

Hi Kevin,

sorry, the command should be

export DYLD_LIBRARY_PATH=/Applications/Autodesk/FBX\ SDK/2017.1/lib/clang/release/

(without the file name)

Laurens. 

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