source: trunk/VUT/GtpVisibilityPreprocessor/src/RenderSimulator.h @ 406

#ifndef _RenderSimulator_h__
#define _RenderSimulator_h__

#include "common.h"

class BspTree;
class KdTree;
class ViewCell;


/** Simulated rendering using a simple render heuristics. Used to evaluate the 
        quality of the view cell partition.
*/
class RenderSimulator
{
public:
        RenderSimulator();
        RenderSimulator(float objRendercost, float vcOverhead);
        virtual Real SimulateRendering() = 0;

protected:
        // render time for single object of the PVS
        float mObjRenderCost;
        // const overhead for crossing a view cell border
        float mVcOverhead;
};

class BspTreeRenderSimulator: public RenderSimulator
{
public:
        BspTreeRenderSimulator(float objRenderCost, float vcOverhead, BspTree *bspTree);

        Real SimulateRendering();

protected:
        /** Simulates rendering of the pvs of one view cell, with given rendering time for an object.
                @param viewCell the view cell holding the Pvs
                @param objRenderTime estimated render time for one object of the Pvs
        */
        Real RenderPvs(ViewCell &viewCell, const float objRenderTime) const;

        BspTree *mBspTree;
};

class KdTreeRenderSimulator: public RenderSimulator
{
public:
        KdTreeRenderSimulator(float objRenderCost, float vcOverhead, KdTree *kdTree);

        Real SimulateRendering();

protected:
        KdTree *mKdTree;
};

#endif // RenderSimulator