source: trunk/VUT/GtpVisibilityPreprocessor/src/ViewCell.h @ 454

#ifndef _ViewCell_H__
#define _ViewCell_H__

#include "Mesh.h"
#include "Containers.h"
#include "Ray.h"

//namespace GtpVisibilityPreprocessor {
  
class BspInterior;
class BspPvs;
struct Triangle3;
class BspLeaf;
class VspKdTree;
class VspKdTreeLeaf;

/**
        View cell with an optional mesh representation
*/
class ViewCell: public MeshInstance
{
public:
        ViewCell();
        /** Constructor taking a mesh representing the shape of the viewcell.
        */
        ViewCell(Mesh *mesh);
        /** Returns Pvs. 
        */
        const ViewCellPvs &GetPvs() const;
        ViewCellPvs &GetPvs();

        int Type() const;
        
        /** Adds a passing ray to the passing ray container.
        */
        void AddPassingRay(const Ray &ray, const int contributions);    


        /// Ray set description of the rays passing through this node.  
        PassingRaySet mPassingRays;

        /// Rays piercing this view cell.
        RayContainer mPiercingRays;

protected:

        /// the potentially visible objects
        ViewCellPvs mPvs;
};

class BspViewCell: public ViewCell
{
public:
        BspViewCell(): mBspLeaves(0) {}
        BspViewCell(Mesh *mesh): 
        ViewCell(mesh), mBspLeaves(0) {}

        /// Leaves which hold this view cell.
        vector<BspLeaf *> mBspLeaves;
};

class VspKdViewCell: public ViewCell
{
public:
        VspKdViewCell(): mVspKdLeaves(0) {}
        VspKdViewCell(Mesh *mesh): 
        ViewCell(mesh), mVspKdLeaves(0) {}

        float GetSize() {return 0;}
        void SetSize(float size) {mSize = size;}

        /// Leaves which hold this view cell.
        vector<VspKdTreeLeaf *> mVspKdLeaves;

protected:
        float mSize;
};
#endif