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[avedakadevra]

The goal of the exercise is to put some 'file' viewer inside Eclipse.
I am trying first with COLLADA. I am using 'SVN' trunck.

I try something like this just to test drive:

   

Code:

private BranchGroup createScene(String daeFile) throws Exception {
BranchGroup bg = new BranchGroup();

AssetFolder root = new COLLADALoader().load(daeFile);
LibraryVisualScenes scenes = root.getLibraryVisualsScenes();
Iterator<Scene> itScene = scenes.getScenes().values().iterator();
if (itScene.hasNext()) {
Scene myScene = itScene.next();
if(myScene.getNodes().values().iterator().hasNext()) {
Node myNode = myScene.getNodes().values().iterator().next();
Model myDaeModelFile = new Model(myNode,null);
bg.addChild(myDaeModelFile);
}
}
return bg;
}

When called, I get the following exception :

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/stream/XMLStreamException
   at java.lang.Class.getDeclaredMethods0(Native Method)
   at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
   at java.lang.Class.getMethod0(Unknown Source)
   at java.lang.Class.getMethod(Unknown Source)
   at org.jibx.runtime.impl.UnmarshallingContext.createReaderFactory(UnmarshallingContext.java:187)
   at org.jibx.runtime.impl.UnmarshallingContext.<clinit>(UnmarshallingContext.java:73)
   at org.jagatoo.loaders.models.collada.jibx.JiBX_bindingFactory.createUnmarshallingContext()
   at org.jagatoo.loaders.models.collada.COLLADALoader.<init>(COLLADALoader.java:52)
   at org.xith3d.test.XithTest.createScene(XithTest.java:45)
   at org.xith3d.test.XithTest.<init>(XithTest.java:104)
   at org.xith3d.test.XithTest.main(XithTest.java:112)

I guess I am missing something. But what ?

Best regards,

Sebastien.

[Marvin Fröhlich]

hi, avedakadevra. Welcome to Xith3D .

No, you're not missing anything. Well, this exception wouldn't come up, if you were using Java 1.6 (don't be alarmed. Xith is supposed to be Java 1.5 compatible). But there are simply two jars missing in the trunk, that are needed to use the COLLADA loader with Java 1.5. This loader is not yet ready. We're all waiting patiently for it to be completed . When it is complete, these missing-jars troubles will also be eliminated. So please wait a bit until it is completed. Could you maybe use one of Xith's other loaders?

Marvin

[avedakadevra]

I switched to Java 6.

But so far, none of the Collada exemples have run through.
Are you interested that I dig a little bit into what kind of
collada constructs make it fails ?

Best regards,

Sebastien.

PS: It is Collada 1.4 or 1.4.1 that you are supporting ?

[Marvin Fröhlich]

I switched to Java 6.

But so far, none of the Collada exemples have run through.
Are you interested that I dig a little bit into what kind of
collada constructs make it fails ?

Best regards,

Sebastien.

PS: It is Collada 1.4 or 1.4.1 that you are supporting ?

I am not the one, who develps the COLLADA loader. It's Amos and maguila. You should ass them. IIRC it's collada 1.4, but I don't really know. Of coulrs it's never wrong to dig into the code. Maybe you're even interested in helping them in development.

Marvin

['n ddrylliog]

So in short :
- Marvin, what's the problem with adding the missing jars even with the COLLADA loader not complete ?
- avedakadevra, a warm welcome to the Xith3D community. you should be able to use COLLADA. The schemas I have implemented are COLLADA 1.4.1 (the latest, as far as I know). Currently I'm looking into maguila's work (a contributor) about skeletal animation. But basic mesh loading is alright (triangles only, I'm afraid : though if you've got a good triangulation routine, why not).

[avedakadevra]

Thancks for the inputs.

I will look into what gets in and not. Collada is after all not so obvious
(there are subtilities in 1.4.1 which make a 1.4.1 not compatible with what
 was available before. I don't have the mail handy, but depending on the exporter/tool/
 exact version it is easy to get different coding styles for textures essentially).

I'll post if I have specific discoveries. I am only on basic mesh loading only. And I
 thinck it fair to force triangulation in the tool prior to export ...

Best regards,

Sebastien.

['n ddrylliog]

Hmm basic mesh loading only ? Then it should be perfectly working. As for textures, I think the code is generic enough : it should need only little tweaking for other exporter/tools.

[avedakadevra]

Hello Amos,

I have a DAE that comes from Feeling exporter for 3DS Max (3.0.2)
It contains a syntax not understood by the parser:

In the collada effect setion there is the following:

Code:

  <library_effects>
    <effect id="_1_-_Default-fx" name="_1_-_Default">
      <profile_COMMON>
        <newparam sid="C__Documents_and_Settings_seb_Mes_documents_Mes_images_Divers_Divers_IMG_0001_JPG-surface">
          <surface type="2D">
            <init_from>C__Documents_and_Settings_seb_Mes_documents_Mes_images_Divers_Divers_IMG_0001_JPG</init_from>
            <format>A8R8G8B8</format>
          </surface>
        </newparam>
        <newparam sid="C__Documents_and_Settings_seb_Mes_documents_Mes_images_Divers_Divers_IMG_0001_JPG-sampler">
          <sampler2D>
            <source>C__Documents_and_Settings_seb_Mes_documents_Mes_images_Divers_Divers_IMG_0001_JPG-surface</source>
            <minfilter>LINEAR_MIPMAP_LINEAR</minfilter>
            <magfilter>LINEAR</magfilter>
          </sampler2D>
        </newparam>

The parser crash at:

org.jibx.runtime.JiBXException: Expected "{http://www.collada.org/2005/11/COLLADASchema}sampler2D" end tag, found "{http://www.collada.org/2005/11/COLLADASchema}magfilter" start tag (line 37, col 24)

=> line 37 in that case correspond to the sampler2D in the extract above.

It seems the Schema might be incorrect. From the doc on Collada it looks correct.
(by the way, Blender importer can read it, but for some reason the image is lost even though the material shows the appropriate reference to it ...).

Best regards,

Sebastien.

['n ddrylliog]

Thanks for the report, I'll look into it (I'm currently fighting to take back possession of the COLLADA code just refreshing my memory).

['n ddrylliog]

Though the complete file would be great to have to debug, if you can afford it (you can send it via PM).

[avedakadevra]

I just send the file through your mail icon.

Thancks for the effort,

Best regards,

Sebastien.

[Andre Pohlmann]

If the Collada-Loader is still broken, what is the recommanded loader at the moment ?

[Marvin Fröhlich]

If the Collada-Loader is still broken, what is the recommanded loader at the moment ?

Well, it depends. If you don't need animations, you should use the OBJLoader. If you need animations, you could try the new MD5Loader. Don't know, if the Blender exporter is really working. Otherwise the Cal3DLoader seems to work pretty good.

Marvin