move Flt UV

struct MoveUVCallback : public osg::Drawable::UpdateCallback
{
    virtual void update(osg::NodeVisitor*, osg::Drawable* drawable)
    {
        if (drawable->asGeometry())
        {
            osg::ref_ptr<osg::Geometry> geometry = drawable->asGeometry();

            osg::ref_ptr<osg::Vec2Array> uvs = dynamic_cast<osg::Vec2Array*>(geometry->getTexCoordArray(0));
            if (uvs.valid())
            {

                for (size_t i = 0; i < uvs->size(); ++i)
                {
                    osg::Vec2& uv = uvs->at(i);
                    uv.x() += 0.01;
                    uv.y() += 0.01;
                }

                uvs->dirty();
                geometry->dirtyDisplayList();
            }
            else
            {
                std::cout << "Non valid UVs" << std::endl;
            }
        }
    }
};

struct FindGeometryVisitor : public osg::NodeVisitor
{
    FindGeometryVisitor()
        : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
    {
    }

    virtual void apply(osg::Node& node)
    {
        if (node.asGeode())
        {
            for (size_t i = 0; i < node.asGeode()->getNumDrawables(); ++i)
            {
                osg::ref_ptr<osg::Geometry> geometry = node.asGeode()->getDrawable(i)->asGeometry();
                if (geometry.valid())
                {
                    geometry->setUpdateCallback(new MoveUVCallback);

                    osg::ref_ptr<osg::Texture2D> texture = dynamic_cast<osg::Texture2D*>(geometry->getOrCreateStateSet()->getTextureAttribute(0, osg::StateAttribute::TEXTURE));
                    if (texture.valid())
                    {
                        std::cout << "Valid texture" << std::endl;

                        texture->setWrap(osg::Texture2D::WRAP_S, osg::Texture2D::REPEAT);
                        texture->setWrap(osg::Texture2D::WRAP_T, osg::Texture2D::REPEAT);
                        texture->setWrap(osg::Texture2D::WRAP_R, osg::Texture2D::REPEAT);
                    }
                }
            }
        }
        traverse(node);
    }
};


.......

osg::ref_ptr<osg::Node> loadedModel =  osgDB::readRefNodeFiles(arguments);

    FindGeometryVisitor nv;
    loadedModel->accept(nv);