source: trunk/VUT/GtpVisibilityPreprocessor/src/RenderSimulator.h @ 411

#ifndef _RenderSimulator_h__
#define _RenderSimulator_h__

#include "common.h"

class BspTree;
class KdTree;
class ViewCell;
class KdLeaf;

/** 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, float moveSpeed);
        virtual Real SimulateRendering() = 0;

        /// render time for single object of the PVS
        float mObjRenderCost;
        /// const overhead for crossing a view cell border
        float mVcOverhead;
        /// move speed of player
        float mMoveSpeed;
};

class BspViewCellRenderSimulator: public RenderSimulator
{
public:
        BspViewCellRenderSimulator(float objRenderCost, 
                                                           float vcOverhead, 
                                                           float moveSpeed, 
                                                           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 KdViewCellRenderSimulator: public RenderSimulator
{
public:
        KdViewCellRenderSimulator(float objRenderCost, 
                                                          float vcOverhead, 
                                                          float moveSpeed, 
                                                          KdTree *kdTree);
        Real SimulateRendering();

protected:

        Real RenderPvs(KdLeaf *leaf, float objRenderTime) const;

        KdTree *mKdTree;
};

#endif // RenderSimulator