hemesh: import of obj => OutOfMemoryError

mschi

hi,

i am trying to load an obj-file (http://www.i-am-digital.de/bottle2.obj) with HEC_FromObjFile:

public void setup() {
  size(1000, 1000, P3D);    
  mesh = new HEC_FromObjFile(sketchPath("bottle2.obj")).create();
}

the call to the HEC_FromObjFile-contructor runs for several minutes and then i get the attached exception. when i load the obj-file with loadShape i can display it without problems.

can anyone help me?

java.lang.RuntimeException: java.lang.OutOfMemoryError: GC overhead limit exceeded
    at com.jogamp.common.util.awt.AWTEDTExecutor.invoke(AWTEDTExecutor.java:58)
    at jogamp.opengl.awt.AWTThreadingPlugin.invokeOnOpenGLThread(AWTThreadingPlugin.java:100)
    at jogamp.opengl.ThreadingImpl.invokeOnOpenGLThread(ThreadingImpl.java:205)
    at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:172)
    at javax.media.opengl.Threading.invoke(Threading.java:191)
    at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:483)
    at processing.opengl.PGL.requestDraw(PGL.java:1149)
    at processing.opengl.PGraphicsOpenGL.requestDraw(PGraphicsOpenGL.java:1604)
    at processing.core.PApplet.run(PApplet.java:2176)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
    at java.util.LinkedList.addBefore(LinkedList.java:778)
    at java.util.LinkedList.add(LinkedList.java:198)
    at wblut.hemesh.HEC_FromFacelist.createBase(HEC_FromFacelist.java:326)
    at wblut.hemesh.HEC_Creator.create(HEC_Creator.java:187)
    at wblut.hemesh.HE_Mesh.<init>(HE_Mesh.java:98)
    at wblut.hemesh.HEC_FromObjFile.createBase(HEC_FromObjFile.java:111)
    at wblut.hemesh.HEC_Creator.create(HEC_Creator.java:187)
    at test_obj.setup(test_obj.java:49)
    at processing.core.PApplet.handleDraw(PApplet.java:2280)
    at processing.opengl.PGL$PGLListener.display(PGL.java:2601)
    at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:588)
    at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:572)
    at javax.media.opengl.awt.GLCanvas$7.run(GLCanvas.java:1054)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1034)
    at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:909)
    at javax.media.opengl.awt.GLCanvas$8.run(GLCanvas.java:1065)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:666)
    at java.awt.EventQueue.access$400(EventQueue.java:81)
    at java.awt.EventQueue$2.run(EventQueue.java:627)
    at java.awt.EventQueue$2.run(EventQueue.java:625)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:636)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

darius

Try to give your sketch more memory ...

Settings / Increase maximum available memory to ... 1024 ... MB

http://stackoverflow.com/questions/5839359/java-lang-outofmemoryerror-gc-overhead-limit-exceeded

mschi

with this obj-file: http://www.i-am-digital.de/Wineglass.obj i do not get an exception but the import is literally running forever. never comes to an end. loadShape works for this file.

i tried several obj-files so far. the hemesh import didn't work for any of these files. only some could be loaded with loadShape and displayed.

now i am asking myself if obj support is usable at all at the moment. any opinions/experiences on that?

mschi

@darius thanks. i tried that. the stacktrace changed but it's still an OutOfMemoryException.

java.lang.OutOfMemoryError: Java heap space
    at java.lang.reflect.Array.newArray(Native Method)
An OutOfMemoryError means that your code is either using up too much memory
because of a bug (e.g. creating an array that's too large, or unintentionally
    at java.lang.reflect.Array.newInstance(Array.java:52)
    at java.util.Arrays.copyOf(Arrays.java:2760)
    at java.util.ArrayList.toArray(ArrayList.java:305)
    at sun.java2d.d3d.D3DScreenUpdateManager.run(D3DScreenUpdateManager.java:429)
    at java.lang.Thread.run(Thread.java:662)
loading thousands of images), or that your sketch may need more memory to run.
If your sketch uses a lot of memory (for instance if it loads a lot of data files)
you can increase the memory available to your sketch using the Preferences window.

darius

I didn't find the HEC_FromObjFile class (libraries/hemesh/doc/index.html) in the documentation. Which version do you use?

/EDIT

Maybe we can improve the HEC_FromObjFile hack with threads or similar techniques.

/EDIT2

I believe, that you develop with Eclipse (b/c of the public visibility), so add that line to your JVM environment. Run / Run configurations / Arguments / VM arguments

-Xms1024m -Xmx1024m

mschi

fuck you are right. i missed the last update of hemesh and now the import class is gone. for a reason i guess. damn, now i have to find a different way to get modells into hemesh.

maybe i can use stl import of toxiclibs and import the toxiclibs mesh in hemesh.

thanks darius

darius

You are welcome!

nootropickint

have have you resolved? i'm facing the same problem.. seems that translating the mesh from toxic to he mesh is the way..