Hi Matthias,
> Hi Andreas,
>>> yes, this way it's working. Thanks.
>>>
>>> I also managed the problem with material sharing by using deep-clone.
>>> However, it still happens, that material changes only come to (visible)
>>> effect after I have transformed geometry. I tried adding
>>> cmat->rebuildState() to the above code but that didn't help. What would
>>> I have to do?
>> hmm perhaps a missing begin/endEditCP somewhere?
>>
>
> not sure ..
>
> That's my changer-class:
>
> -----------------------------
>
> class EmissionChanger
> {
> public:
>
> EmissionChanger(osg::Color4f color) : _color(color) {}
>
> osg::Action::ResultE change(osg::NodePtr& node)
> {
> osg::MaterialGroupPtr mg =
> osg::MaterialGroupPtr::dcast(node->getCore());
> if(mg != osg::NullFC)
> color(mg->getMaterial());
>
> osg::GeometryPtr geo = osg::GeometryPtr::dcast(node->getCore());
>
> if(geo != osg::NullFC)
> color(geo->getMaterial());
>
> return osg::Action::Continue;
> }
>
> private:
>
> void color(osg::MaterialPtr m)
> {
> if(m == osg::NullFC)
> return;
>
> osg::ChunkMaterialPtr cm = osg::ChunkMaterialPtr::dcast(m);
> if(cm == osg::NullFC)
> {
> FWARNING(("ChunkAdder::doAdd: Material %p is not a "
> "ChunkMaterial, can't add!\n", m.getCPtr()));
> return;
> }
> osg::MaterialChunkPtr matc =
> osg::MaterialChunkPtr::dcast(cm->find(osg::MaterialChunk::getClassType()));
> if(matc != osg::NullFC)
> {
> osg::beginEditCP(cm);
> osg::beginEditCP(matc);
>
> matc->setEmission(_color);
> osg::endEditCP(matc);
> cm->rebuildState();
> osg::endEditCP(cm);
> }
> }
> osg::Color4f _color;
> };
>
> -------------------------------
>
> And that's how I use it:
>
>
> EmissionChanger ec(color);
> osg::traverse(m_node,
> osg::osgTypedMethodFunctor1ObjPtrCPtrRef<osg::Action::ResultE,EmissionChanger,osg::NodePtr>(
> &ec,&EmissionChanger::change));
>
>
> What might I be missing?
your code looks ok the cm->rebuildState(); call is not necessary. Can
you create a small test program (a modified tutorial) to reproduce this
behavior?
Andreas
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