SceneGraphAnalysis.cc

/*===========================================================================*\
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#include "SceneGraphAnalysis.hh"

namespace ACG {
namespace SceneGraph {

void analyzeSceneGraph(ACG::SceneGraph::BaseNode* _root,
                       unsigned int&              _maxPasses,
                       ACG::Vec3d&                _bbmin,
                       ACG::Vec3d&                _bbmax)
{
  // Get max number of render pass
  // Single pass action, this info is static during multipass
  ACG::SceneGraph::MultiPassInfoAction info_act;
  ACG::SceneGraph::traverse(_root, info_act);

  _maxPasses = info_act.getMaxPasses();

  // get scene size
  // Single pass action, as the bounding box is not influenced by multipass traversal
  ACG::SceneGraph::BoundingBoxAction act;
  ACG::SceneGraph::traverse(_root, act);

  _bbmin = (ACG::Vec3d) act.bbMin();
  _bbmax = (ACG::Vec3d) act.bbMax();
}

//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================