help with converting 3ds model

[dutch_delight]

Hi all,

I'm just getting into java and want to do something with this engine. I'm a bit stuck with the model conversion. I'm using Eclipse and got the latest sdk. When I run this, eclipse throws a fit and gives me no real error message. First time using Eclipse as well so I think it's all configured correctly.
All I want is convert some models.

Also, is there any documentation on the .ser files? I was thinking of converting my max exporter to export .ser files directly.

Thanks for any help.


This is my code

Code Select Expand


package com.threed.jpct.example;

import java.io.FileOutputStream;
import com.threed.jpct.DeSerializer;
import com.threed.jpct.Loader;
import com.threed.jpct.Object3D;

public class model_converter {


    public static void main(String[] args) throws FileNotFoundException {
        Object3D modelfile = null;

        DeSerializer de;
        modelfile = Loader.load3DS("C:/sphere.3ds",1)[0];
        modelfile.build();
        de = new DeSerializer();
        de.serialize(modelfile, new FileOutputStream("C:/sphere.ser"), true);
    }

}

[EgonOlsen]

...and you want to convert them to .ser-format because of...why? If you are not planning to use jPCT-AE, this step usually isn't needed and you can go with the normal 3ds-file instead. The .ser-format isn't documented and exists in various versions. It's my internal format...there's no point in exposing its specs.

[dutch_delight]

Yes I am working with jPCT-AE and making some nice progress. I'm just a little stuck with the model conversion process.

[EgonOlsen]

Ok...so...what is the exact problem again? What is a "fit"?

[dutch_delight]

When I run the code I get no info or anything just this:
Could the path of the 3ds file cause a problem?



#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (classFileParser.cpp:3375), pid=3336, tid=6040
#  Error: ShouldNotReachHere()
#
# JRE version: 6.0_23-b05
# Java VM: Java HotSpot(TM) Client VM (19.0-b09 mixed mode windows-x86 )
# An error report file with more information is saved as:
# C:\Documents and Settings\rich\workspace\3d_engine_pc\hs_err_pid3336.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
---------------  T H R E A D  ---------------

Current thread (0x003a7000):  JavaThread "Unknown thread" [_thread_in_vm, id=6040, stack(0x008c0000,0x00910000)]

Stack: [0x008c0000,0x00910000],  sp=0x0090f8a4,  free space=318k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [jvm.dll+0x200a27]
V  [jvm.dll+0xa536b]
V  [jvm.dll+0x761e8]
V  [jvm.dll+0x779ef]
V  [jvm.dll+0x1cfdc5]
V  [jvm.dll+0x1d069d]
V  [jvm.dll+0x1d0a65]
V  [jvm.dll+0x1d0aab]
V  [jvm.dll+0x1d0bd2]
V  [jvm.dll+0x1d0c4a]
V  [jvm.dll+0x1d0d2d]
V  [jvm.dll+0x1d0fd2]
V  [jvm.dll+0x1f0783]
V  [jvm.dll+0x1f0b5c]
V  [jvm.dll+0xdbd3c]
V  [jvm.dll+0x1e9c28]
V  [jvm.dll+0x106190]
C  [javaw.exe+0x1657]
C  [javaw.exe+0x1e2c]
C  [javaw.exe+0x8614]
C  [kernel32.dll+0xb729]


---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )

Other Threads:

=>0x003a7000 (exited) JavaThread "Unknown thread" [_thread_in_vm, id=6040, stack(0x008c0000,0x00910000)]

VM state:not at safepoint (not fully initialized)

VM Mutex/Monitor currently owned by a thread: None

Dynamic libraries:
0x00400000 - 0x00424000    C:\Program Files\Java\jdk1.6.0_23\bin\javaw.exe
0x7c900000 - 0x7c9b2000    C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c8f6000    C:\WINDOWS\system32\kernel32.dll
0x77dd0000 - 0x77e6b000    C:\WINDOWS\system32\ADVAPI32.dll
0x77e70000 - 0x77f03000    C:\WINDOWS\system32\RPCRT4.dll
0x77fe0000 - 0x77ff1000    C:\WINDOWS\system32\Secur32.dll
0x7e410000 - 0x7e4a1000    C:\WINDOWS\system32\USER32.dll
0x77f10000 - 0x77f59000    C:\WINDOWS\system32\GDI32.dll
0x76390000 - 0x763ad000    C:\WINDOWS\system32\IMM32.DLL
0x7c340000 - 0x7c396000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\msvcr71.dll
0x6d8a0000 - 0x6db4c000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\client\jvm.dll
0x76b40000 - 0x76b6d000    C:\WINDOWS\system32\WINMM.dll
0x6d850000 - 0x6d85c000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\verify.dll
0x6d3d0000 - 0x6d3ef000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\java.dll
0x6d330000 - 0x6d338000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\hpi.dll
0x76bf0000 - 0x76bfb000    C:\WINDOWS\system32\PSAPI.DLL
0x6d420000 - 0x6d449000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\jdwp.dll
0x6d740000 - 0x6d746000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\npt.dll
0x6d890000 - 0x6d89f000    C:\Program Files\Java\jdk1.6.0_23\jre\bin\zip.dll

[EgonOlsen]

Wtf? Seems that you have created a killer class. Do other classes run fine?

[dutch_delight]

I think they do. When I run my AE version everything is just fine. I have been struggling/messing around for a while so maybe i'll try reinstalling the sdk?

Can you see anything wrong with my example code? Would you expect the file to just be converted?

Thanks for your help.

[EgonOlsen]

Your code looks fine at first glance. And even if it's not, it shouldn't crash the VM...

[Kaiidyn]

try reinstalling / upgrading java.

[dutch_delight]

I've reinstalled the SDK and created a new project and the model went through first time. Sweet!

Thanks for the help.

[dutch_delight]

So I've got my model and now I want to load it. but no matter where I put my file, it's just wont load.
Keeps telling me that the file cant be found. Am I missing something here?

Code Select Expand


InputStream mesh_object;
mesh_object = new FileInputStream("c:/sphere.ser");
Object3D obj = Loader.loadSerializedObject(mesh_object);
obj.build();
world.addObject(obj);

[EgonOlsen]

No, it looks fine. Who is complaining here? The FileInputStream or the Loader?

[dutch_delight]

It's the filestream i think.
I've had to wrap it in a try/catch and that gives this:

java.io.FileNotFoundException:/c:/sphere.ser(no such file or directory)

(I am testing on an android virtual device though.)

[Kaiidyn]

android does not work with c:/ or anything...
you need to use the sdk resources.