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?
Matthias
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