source: GTP/trunk/App/Demos/Vis/CHC_revisited/FrustumCullingTraverser.cpp @ 2763

#include "FrustumCullingTraverser.h"
#include "SceneEntity.h"

using namespace std;


namespace CHCDemo
{

FrustumCullingTraverser::FrustumCullingTraverser(): RenderTraverser() 
{
}


void FrustumCullingTraverser::Render()
{
        mRenderState->mTexturesEnabled = false;
        mDistanceQueue.push(mBvh->GetRoot());


        int traversed = 0;
        while (!mDistanceQueue.empty())
        {
                BvhNode *node = mDistanceQueue.top();
                mDistanceQueue.pop();
        
                // interesting for the visualization, so rest and set
                node->SetVisible(false);
                //mNumTraversedNodes ++;

                if (mBvh->IsWithinViewFrustum(node))
                {
                        // update node's visited flag => needed for rendering
                        // so set it also here
                        //node->SetLastVisited(mFrameID);
                        //node->SetVisible(true);
                        ++ traversed;
                        TraverseNode(node);
                }
                else
                {
                        //mNumFrustumCulledNodes ++;
                }
                //cout << "intersect: " << intersect << " bx " << node->GetBox() << endl;
        }
        
        //std::cout << "traversed: " << traversed << std::endl;
}

}