osg模型部分节点旋转

 

osg::ref_ptr<osg::Geode> CreateBox()
{
    osg::ref_ptr<osg::Geode> geode = new osg::Geode;
    osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
    hints->setDetailRatio(0.5);

    osg::ref_ptr<osg::Material> material = new osg::Material;
    material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
    material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
    material->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
    material->setShininess(osg::Material::FRONT_AND_BACK, 60);

    osg::ref_ptr<osg::Texture2D> texture2D = new osg::Texture2D;
    //设置纹理
    osg::ref_ptr<osg::Image> image = osgDB::readImageFile("D:\\image_1\\arm1.jpg");
    if (image.valid())
    {
        texture2D->setImage(image.get());
    }

    osg::ref_ptr<osg::ShapeDrawable> shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0, 0.0, 0.0), 1.0, 1.0, 1.0), hints.get());
    shape->setColor(osg::Vec4(100.0f, 255.0f, 0.0f, 0.6));

    geode->getOrCreateStateSet()->setAttributeAndModes(material.get(), osg::StateAttribute::ON);
    geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, texture2D, osg::StateAttribute::ON);
    geode->addDrawable(shape.get());

    return geode;
}