[vtkusers] "a vtkShader2 object is being deleted before ReleaseGraphicsResources() has been called." with vtkVolume->setMapper

[Aashish Chaudhary]

No problem. Thanks for the information.

On Wed, Oct 5, 2011 at 10:40 AM, Tijmen Klein <T.R.Klein at student.rug.nl> wrote:
> Hi Aashish,
> Sorry for not mentioning this, but I am indeed using
> a vtkGPUVolumeRayCastMapper.
> Cheers,
> Tijmen
>
> On Wed, Oct 5, 2011 at 4:38 PM, Aashish Chaudhary
> <aashish.chaudhary at kitware.com> wrote:
>>
>> Hi Tijmen,
>>
>> On Wed, Oct 5, 2011 at 7:50 AM, Tijmen Klein <T.R.Klein at student.rug.nl>
>> wrote:
>> > I recently updated VTK from 5.6 to the 5.9 version from Git. Now when I
>> > close my application, I get this error repeated quite a few times: "a
>> > vtkShader2 object is being deleted before ReleaseGraphicsResources() has
>> > been called."
>> > After a while I found the origin of the this problem. I have a
>> > vtkVolume,
>> > and throughout the program the mapper of this vtkVolume is gets changed.
>> > So,
>> > every now and then I do a call vtkVolume->setMapper(someMapper);
>> > This used to work fine, and the (visual) results do still work. However,
>> > when I comment out the setMapper() lines, the errors do not occur when
>> > exiting. I was able to get rid of the errors by prepending the
>> > setMapper()
>> > call with a ReleaseGraphicsResources() call. So my code now looks
>> > something
>> > like this:
>> > volume->ReleaseGraphicsResources(renWin);
>> > volume->SetMapper(volumeMapper);
>> > Is this intended and expected behavior, or is it a bug?
>>
>> This seems like a bug.  What particular mapper are you using? Is it
>> vtkGPUVolumeRayCastMapper? I will have a look at it sometime today.
>>
>> Thanks,
>>
>>
>> > Cheers,
>> > Tijmen
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>>
>>
>>
>> --
>> | Aashish Chaudhary
>> | R&D Engineer
>> | Kitware Inc.
>> | www.kitware.com
>
>



-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com