#include "FrustumCullingManager.h"
#include <windows.h>

namespace GtpVisibility {

//-----------------------------------------------------------------------
void FrustumCullingManager::RenderScene()
{
	mNumFrustumCulledNodes = mNumQueryCulledNodes = 0;
	//OutputDebugString("Frustum Culling\n");

	while (!mHierarchyInterface->GetQueue()->empty())
	{
		HierarchyNode *node = mHierarchyInterface->GetQueue()->top();
		mHierarchyInterface->GetQueue()->pop();
		
		// interesting for visualization purpose
		mHierarchyInterface->SetNodeVisible(node, false);
		mHierarchyInterface->SetLastVisited(node, mHierarchyInterface->GetFrameId());

		if (!mHierarchyInterface->CheckFrustumVisible(node))
		{
			mNumFrustumCulledNodes ++;
		}
		else
		{		
			mHierarchyInterface->SetNodeVisible(node, true);
			mHierarchyInterface->TraverseNode(node);
		}
	}
}

} // namespace GtpVisibility