problem with Xith to Collada XML

[khangharoth]

Hi i am using  Collada  DaeSaver class
       

1	DaeSaver.save(CurrentContext.sceneBase,"C:\\scene.xml");

   but am getting exception which am not able to deciper

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38

java.io.IOException      at org.xith3d.loaders.dae.whoola.misc.JaxbCoder.encode(JaxbCoder.java:85)      at org.xith3d.loaders.dae.whoola.collada.ColladaSaver.toString(ColladaSaver.java:98)      at org.xith3d.loaders.dae.whoola.DaeSaver.toString(DaeSaver.java:116)      at org.xith3d.loaders.dae.whoola.DaeSaver.println(DaeSaver.java:82)      at org.xith3d.loaders.dae.whoola.DaeSaver.println(DaeSaver.java:66)      at com.ayaam.applicationFramework.gui.controller.toolBarControllers.StandToolBarController.dispatchMethodCalls(Unknown Source)      at com.ayaam.applicationFramework.gui.controller.toolBarControllers.ToolBarsController.dispToRespBarContr(Unknown Source)      at com.ayaam.applicationFramework.gui.stateMgmt.UiStateManager.run(Unknown Source)      at java.lang.Thread.run(Thread.java:595)  Caused by: javax.xml.bind.ValidationException   - with linked exception:  [com.sun.xml.bind.serializer.AbortSerializationException: a required field "InstanceEffect" is missing an object]      at org.collada._2005._11.colladaschema.impl.runtime.ValidatorImpl.validate(Unknown Source)      at org.collada._2005._11.colladaschema.impl.runtime.ValidatorImpl.validateRoot(Unknown Source)      at org.xith3d.loaders.dae.whoola.misc.JaxbCoder.encode(JaxbCoder.java:74)      ... 8 more  java.io.IOException      at org.xith3d.loaders.dae.whoola.misc.JaxbCoder.encode(JaxbCoder.java:85)      at org.xith3d.loaders.dae.whoola.collada.ColladaSaver.toString(ColladaSaver.java:98)      at org.xith3d.loaders.dae.whoola.DaeSaver.toString(DaeSaver.java:116)      at org.xith3d.loaders.dae.whoola.DaeSaver.println(DaeSaver.java:82)      at org.xith3d.loaders.dae.whoola.DaeSaver.println(DaeSaver.java:66)      at com.ayaam.applicationFramework.gui.controller.toolBarControllers.StandToolBarController.dispatchMethodCalls(Unknown Source)      at com.ayaam.applicationFramework.gui.controller.toolBarControllers.ToolBarsController.dispToRespBarContr(Unknown Source)      at com.ayaam.applicationFramework.gui.stateMgmt.UiStateManager.run(Unknown Source)      at java.lang.Thread.run(Thread.java:595)  Caused by: javax.xml.bind.ValidationException   - with linked exception:  [com.sun.xml.bind.serializer.AbortSerializationException: a required field "InstanceEffect" is missing an object]      at org.collada._2005._11.colladaschema.impl.runtime.ValidatorImpl.validate(Unknown Source)      at org.collada._2005._11.colladaschema.impl.runtime.ValidatorImpl.validateRoot(Unknown Source)      at org.xith3d.loaders.dae.whoola.misc.JaxbCoder.encode(JaxbCoder.java:74)      ... 8 more  java.io.IOException      at org.xith3d.loaders.dae.whoola.misc.JaxbCoder.encode(JaxbCoder.java:85)      at org.xith3d.loaders.dae.whoola.collada.ColladaSaver.toString(ColladaSaver.java:98)      at org.xith3d.loaders.dae.whoola.DaeSaver.toString(DaeSaver.java:116)

Croft you have any idea about this ..what am i doing wrong

[croft]

Croft you have any idea about this ..what am i doing wrong

Yes, the key line is this:
 [com.sun.xml.bind.serializer.AbortSerializationException: a required field "InstanceEffect" is missing an object]

Look for a missing "instance_effect" element, probably in one of your "material" elements.

I figured out how to make the XML validator tell which line the error is on.  If enough people keep having this problem, I will implement as part of the error reporting.

[khangharoth]

hmmm..ok will look into it ....thanks for the help 

Games published by our own members! Check 'em out!

[khangharoth]

Hi Croft
  from where can i get  whoola_collada_jaxb.jar code    
      baiscally i want code for   org.collada._2005._11.colladaschema  package to debug ,
     as i am not getting whats the problem for  required field "InstanceEffect" is missing an object]

[croft]

Hi Croft
  from where can i get  whoola_collada_jaxb.jar code    
      baiscally i want code for   org.collada._2005._11.colladaschema  package to debug ,
     as i am not getting whats the problem for  required field "InstanceEffect" is missing an object]

It is created by the JAXB compiler based on the XML schema.  You probably want to look at the COLLADA XML schema instead.  You can get to it from www.COLLADA.org.

[khangharoth]

Yaa ..you are right , I have managed it to get working but not convincingly , have to look at source code properly.
                            Its ignoring many classes like Background and also Groups , will look on that too.
               Thanks for the help and it was really very easy to use 
 

[croft]

Yaa ..you are right , I have managed it to get working but not convincingly , have to look at source code properly.
                            Its ignoring many classes like Background and also Groups , will look on that too.

COLLADA does not have a background node so I convert it into an "extra" node:
http://earth.whoola.com:8080/javadoc/xith-tk/src-html/org/xith3d/loaders/dae/whoola/DaeExporter.html#line.1260

BranchGroup and TransformGroup should be supported but other types of Group such as OrderedGroup are not yet implemented.  If you need it, let me know.

[croft]

COLLADA does not have a background node so I convert it into an "extra" node:
http://earth.whoola.com:8080/javadoc/xith-tk/src-html/org/xith3d/loaders/dae/whoola/DaeExporter.html#line.1260

Oops.  I see it might be disabled:
http://earth.whoola.com:8080/javadoc/xith-tk/src-html/org/xith3d/loaders/dae/whoola/DaeExporter.html#line.1296

I think I was planning to fix it when I upgraded to JAXB 2.

[khangharoth]

Hi Croft ,
               How is the scalablity of collada , i mean if my Scene is very big than i think writing it to XML file can be very time consuming ,havent tried it though but i feel that this approach may not scale .have you tried with big scene where number of Vertices being rendered are very high .

[croft]

               How is the scalablity of collada , i mean if my Scene is very big than i think writing it to XML file can be very time consuming ,havent tried it though but i feel that this approach may not scale .have you tried with big scene where number of Vertices being rendered are very high .

I'm not sure about exporting, but for importing I have one high polygon count model that I use as a test.  Load this URL into Whoola Cyberspace (F1 key):
http://earth.whoola.com:8080/space/cyber/examples/swim/swimmer_woman.dae

It seems to work OK.

I have started reading the JAXB 2 spec.

Games published by our own members! Check 'em out!

[khangharoth]

yup...when i saw the wireframe model ..its indeed rendering lots of vertices.......

[croft]

Oops.  I see it might be disabled:
http://earth.whoola.com:8080/javadoc/xith-tk/src-html/org/xith3d/loaders/dae/whoola/DaeExporter.html#line.1296

I think I was planning to fix it when I upgraded to JAXB 2.

I finished the JAXB 2 upgrade:
https://collada.org/public_forum/viewtopic.php?p=1640&sid=0c993c43b94c9a78958ac7533e6e9752#1640

This should permit me to fix the export of the background node.

[khangharoth]

Cool    , so we just have to take the new whoola_collada_jaxb.jar  , anyway right now i am busy with implementing Zoom at a point rather than centre , have done it but am thinking that their can be genral utility methods for visualisation  purposes in  Xith-tk .
              Like :
              1)  Zoom at  point so method should be like 

1	zoom(Point3f pointOfZoom ,float scale )

              2) Rotation about an arbitary axis passing through a given point .

1	rotateAboutPoint (Point3f point ,Vector3f axis,float angle )

              3) 3-4 classes dedicated for conversion of mouse-To-World cordinates.
                                                            Aim here should be that  :: if a point click gives me some world-cordinates than even after Pan,Zoom,Rotate ,changing the view direction that point still should give the same co-ordinate, its still the same point in the world cordinate .
                      I have done some work on it , and it would be great if we can come up with something like this in Xith
                                     
             

[croft]

Cool    , so we just have to take the new whoola_collada_jaxb.jar 

The export of background nodes might work now.

You can get it here:
http://sourceforge.net/project/showfiles.php?group_id=114095&package_id=154144