Method setInstancedScene

kernels/common/scene_instance.cpp:57–63

  }

  void Instance::setInstancedScene(const Ref<Scene>& scene)
  {
    if (object) object->refDec();
    object = scene.ptr;
    if (object) object->refInc();
    Geometry::update();
  }

#if 0
  void Instance::preCommit()