[vtkusers] vtkOpenGLOffscreenRenderWindow + vtkTexture = buserror

[John Shalf]

Wow,
I never did test textures before.  Randy, lets get this all integrated with the
OffscreenRenderWindow and create an updated release.

Hadn't thought about issues with offscreen textures (just assumed that the texture binding
would be more generic... ugh...)  Sorry about that Mykola, this'll get fixed for you very
soon.

-john

Mykola Khotyaintsev wrote:

> Dear Randy,
>
> Thanks for help.
> But I have a error while compiling vtkOpenGLOffscreenTexture.
> In line #254 tere is:
>
> ((vtkOpenGLOffscreenRenderWindow *)
>  (ren->GetRenderWindow()))->RegisterTextureResource( this->Index );
>
> But there is no method RegisterTextureResource(..) in
> vtkOpenGLOffscreenRenderWindow.
>
> May be I have an old version of vtkOpenGLOffscreenRenderWindow? It is
> 1.16 from 1999/12/01 18:44:34. I got it from
> http://zeus.ncsa.uiuc.edu/%7Ejshalf/VTK/vtkOffScreen/vtkOffScreen.tar.gz
>
> Thanks in advance,
>
> Mykola
>
> > No promise that it'll work for you, but some time ago I had to write a
> > vtkOpenGLOffscreenTexture class to accompany the OffscreenRender class.
>
> > Get it from the bottom of:
> >   http://www.ncsa.uiuc.edu/~heiland/vtk/
> >
> > --Randy
> >
> > On Oct 23,  5:53pm, Mykola Khotyaintsev wrote:
> > > Subject: [vtkusers] vtkOpenGLOffscreenRenderWindow + vtkTexture = bus erro
> > > Dear John/VTK users,
> > >
> > > vtkOpenGLOffscreenRenderWindow works good if I don't use any texture. If
> > > I set the texture - the programm crashes with the BUS ERROR while
> > > executing renWin.Render() :(
> > >
> > >     Please help.
> > >
> > >
> > > Here is the example code:
> > >
> > > import vtk.*;
> > > import java.awt.*;
> > > import java.awt.event.*;
> > >
> > > public class offscreen {
> > >
> > > public static void main (String[] args)
> > > {
> > >
> > >   System.loadLibrary("vtkJava");
> > >
> > >   vtkOpenGLOffscreenRenderWindow renWin = new
> > > vtkOpenGLOffscreenRenderWindow();
> > >
> > >   vtkRenderer ren = new vtkRenderer();
> > >
> > >   renWin.SetSize(400, 400);
> > >
> > >   renWin.AddRenderer(ren);
> > >
> > >   vtkSphereSource sphere = new vtkSphereSource();
> > >     sphere.SetRadius(1.0);
> > >     sphere.SetThetaResolution(18);
> > >     sphere.SetPhiResolution(18);
> > >
> > >   vtkPolyDataMapper map = new vtkPolyDataMapper();
> > >     map.SetInput(sphere.GetOutput());
> > >     map.ImmediateModeRenderingOn();
> > >
> > >   vtkTexture atext = new vtkTexture();
> > >   vtkPNMReader pnmReader = new vtkPNMReader();
> > >     pnmReader.SetFileName("/home/ko/ovt2g/images/earth_grid.pnm");
> > >     atext.SetInput(pnmReader.GetOutput());
> > >     atext.InterpolateOn();
> > >
> > >   vtkActor aSphere = new vtkActor();
> > >     aSphere.SetMapper(map);
> > >     aSphere.SetTexture(atext);
> > >
> > >
> > >   ren.AddActor(aSphere);
> > >   ren.SetBackground(1,1,1); // Background color white
> > >
> > >   System.out.print("Rendering ... ");
> > >   renWin.Render();
> > >   System.out.println("done.");
> > >
> > >
> > >   vtkWindowToImageFilter windowToImageFilter = new
> > > vtkWindowToImageFilter();
> > >     windowToImageFilter.SetInput(renWin);
> > >
> > >   vtkPNMWriter writer = new vtkPNMWriter();
> > >     writer.SetInput(windowToImageFilter.GetOutput());
> > >     writer.SetFileName("earth.ppm");
> > >     writer.Write();
> > > }
> > >
> > > }
> > >
> > > Here is the error message:
> > >
> > > [ko at anna][~/java]# java offscreen
> > > NOT using PBuffers...
> > > Rendering ... SIGBUS    10*  bus error
> > >     si_signo [10]: SIGBUS    10*  bus error
> > >     si_errno [0]: Error 0
> > >     si_code [1]: BUS_ADRALN [addr: 0xa800019]
> > >
> > >         stackpointer=FFBED5D8
> > > "Finalizer" (TID:0x14f164, sys_thread_t:0x14f0a8, state:CW, thread_t: t at 6,
> > > threadID:0xfecc1d78, stack_bottom:0xfecc2000, stack_size:0x20000) prio=8
> > >
> > > [1] java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:106)
> > > [2] java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:128)
> > > [3] java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:175)
> > > -------------------
> > > "Reference Handler" (TID:0x14a964, sys_thread_t:0x14a8a8, state:CW,
> > > thread_t: t at 5, threadID:0xfecf1d78, stack_bottom:0xfecf2000,
> > > stack_size:0x20000) prio=10
> > >
> > > [1] java.lang.Object.wait(Object.java:424)
> > > [2] java.lang.ref.Reference$ReferenceHandler.run(Reference.java:107)
> > > -------------------
> > > "Signal dispatcher" (TID:0x138214, sys_thread_t:0x138158, state:MW,
> > > thread_t: t at 4, threadID:0xfed51d78, stack_bottom:0xfed52000,
> > > stack_size:0x20000) prio=10
> > >
> > > -------------------
> > > "main" (TID:0x3859c, sys_thread_t:0x384e0, state:R, thread_t: t at 1,
> > > threadID:0x25118, stack_bottom:0xffbf0000, stack_size:0x20000) prio=5
> > > *current thread*
> > >
> > > [1] vtk.vtkRenderWindow.Render_5(Native Method)
> > > [2] vtk.vtkRenderWindow.Render(vtkRenderWindow.java:32)
> > > [3] offscreen.main(offscreen.java:44)
> > > -------------------
> > > Abort (core dumped)
> > >
> > >
> > > Thanx in advance,
> > >
> > > Mykola
> > >
> > >
> > > _______________________________________________
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> > >-- End of excerpt from Mykola Khotyaintsev
> >
> >
> >
>
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