[vtk-developers] Possible bug with vtkActor2D or with text actors.

[J.A. Lee]

Just a thought - does this happen when you set 
ImmediateModeRenderingOn() on your mappers?  I was having similar 
problems but never found the exact source of the problem - I suspected 
at one point it might be a thread issue with the openGL library - my 
problems arose when glDeleteLists was called in 
vtkOpenGLPolyDataMapper::ReleaseGraphicsResources().  This problem 
occurs only on my linux machine, which is why I think it might be a 
thread-safety issue.  Regardless, I  would like to see the test problem 
too so I can see if it causes a core dump the same way :).
-Jeff

Prabhu Ramachandran wrote:

>hi,
>
>>>>>>"LSA" == Lisa Sobierajski Avila <lisa.avila at kitware.com> writes:
>>>>>>
>
>    LSA> Hello Prabhu,
>    >> (3) Then I close this window, create a similar but new window
>    >> and again repeat the process by going to step 1 by creating a
>    >> new window.  Note that I use the same actors.
>
>    LSA> I suspect some graphics resources are not being
>    LSA> released. Either ReleaseGraphicsResources() is not being
>    LSA> called (but I looked and it seems like it should be...) or
>    LSA> else some resource that should be released in this method is
>    LSA> not. Of course, having said this I do not have time to look
>    LSA> at this for a couple of weeks - but perhaps someone else
>    LSA> might know what resource (other than the display list for the
>    LSA> text) should be released.
>
>Thanks for the response.  FWIW I will try to write a quick and dirty
>c++ program that demos this and try to debug it.  Hopefully this
>should help.  At any rate the test program will help the person who
>might want to look at the bug.
>
>prabhu
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>


-- 
J.A. Lee
Software Engineer
Computational Dynamics North America
3 Schoolhouse Lane
Etna NH, 03750
ph: 603-643-9993 x109, fax: 603-643-9994