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/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
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#ifndef SceneManagerVolumeTree_INCLUDE_ONCE
#define SceneManagerVolumeTree_INCLUDE_ONCE

#include <vlGraphics/SceneManager.hpp>

namespace vl
{
//-------------------------------------------------------------------------------------------------------------------------------------------
// SceneManagerBVH
//-------------------------------------------------------------------------------------------------------------------------------------------
  template<class T>
  class VLGRAPHICS_EXPORT SceneManagerBVH: public SceneManager
  {
    VL_INSTRUMENT_CLASS(vl::SceneManagerBVH<T>, SceneManager)

  public:
    void setTree(T* bbh) { mBoundingVolumeTree = bbh; }
    const T* tree() const { return mBoundingVolumeTree.get(); }
    T* tree() { return mBoundingVolumeTree.get(); }

    virtual void extractVisibleActors(ActorCollection& list, const Camera* camera)
    {
      // extracts Actor[s] from the hierarchical volume tree
      if (cullingEnabled())
        tree()->extractVisibleActors(list, camera, enableMask());
      else
        extractActors(list);
    }

    virtual void extractActors(ActorCollection& list)
    {
      // extracts Actor[s] from the hierarchical volume tree
      tree()->extractActors(list);
    }

  protected:
    ref<T> mBoundingVolumeTree;
  };

}

#endif