Yes you are right :) I was just about to post that i followed that hint and
used it. It works now. Thanks.
Ulrich Hertlein wrote:
> Hi Otto,
>
> On 27/10/09 10:12 AM, Otto Cologne wrote:
>
> > I'm having a crash with setTextureAttributeAndModes I don't know how to fix.
> >
> > To explain the issue. I have a list of data sets which hold a pointer to a
> > osg::Texture3D. The texture mixing is done in a shader and my texture
> > update function
> > containing the following loop is called from an update callback. Since the
> > order of
> > the textures can/must change i loop over the textures and do this
> > ...
> >
> > osg::StateSet* sliceState = m_sliceNode->getOrCreateStateSet(); for (
> > size_t i = 0; i<
> > datasetList.size(); ++i) { osg::Texture3D* texture3D = datasetList[i]
> > )->getTexture3D(); sliceState->setTextureAttributeAndModes( i, texture3D,
> > osg::StateAttribute::ON ); }
> >
> > This works just find when adding one texture after another. However when
> > the order
> > changes, thus overwriting a different order it crashes. So apparently I'm
> > doing it
> > wrong.
> >
>
> David already hinted at the answer: you need to use ref_ptr<Texture3D> for
> your
> datasetList, not Texture3D*.
>
> Or manually do a 'ref' on each object.
>
> Cheers,
> /ulrich
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