I think there is a Memory leak
void mitk::VtkPropRenderer::PrepareMapperQueue()
{
// ................code...............................
//
// remove all text properties before mappers will add new ones m_TextRenderer->RemoveAllViewProps(); //can it release mem? m_TextCollection.clear(); /// here may be mem leak??
//
................code...............................
//
and how to report bug
m_TextRenderer->RemoveAllViewProps(); does not release memory, but is also not the right place to do it. Not a leak in my opinion.
m_TextCollection.clear(); is a leak;
Could we instead of iterating the map just use vtkSmartPointers as items of the map? That would make the code much simpler.
Would be the much nicer solution, but I don't get it to work for me (just tried).
But actually I am not completely sure what happens here exactly.
I try to get one of the rendering guys to have a look at it next BSP.
Just seen that text is displayed in very strange positions anyway.
Will open a new bug for that.
Not a real leak:
Objects are removed from the rendering list here, but should not be deleted.
They are still held by the actors.