[406] | 1 | #ifndef _RenderSimulator_h__
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| 2 | #define _RenderSimulator_h__
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| 3 |
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| 4 | #include "common.h"
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[414] | 5 | #include "Statistics.h"
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[406] | 6 |
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| 7 | class BspTree;
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| 8 | class KdTree;
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| 9 | class ViewCell;
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[407] | 10 | class KdLeaf;
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[449] | 11 | class VspKdTree;
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[448] | 12 | class VspBspTree;
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[406] | 13 |
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[463] | 14 | class SimulationStatistics: public StatisticsBase
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| 15 | {
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| 16 | public:
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| 17 | /// view cell with the biggest "cost"
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| 18 | float maxCost;
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| 19 | /// view cell with the minimal "cost"
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| 20 | float minCost;
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| 21 | /// average render time
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| 22 | float avgRenderTime;
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| 23 | /// average render time with the overhead when crossing view cells
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| 24 | float avgRtWithoutOverhead;
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| 25 |
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| 26 | void Reset()
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| 27 | {
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| 28 | maxCost = 0;
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| 29 | minCost = 999999;
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| 30 | avgRenderTime = 0;
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| 31 | avgRtWithoutOverhead = 0;
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| 32 | }
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| 33 |
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| 34 | void Print(ostream &app) const;
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| 35 |
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| 36 | friend ostream &operator<<(ostream &s, const SimulationStatistics &stat)
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| 37 | {
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| 38 | stat.Print(s);
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| 39 | return s;
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| 40 | }
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| 41 |
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| 42 | SimulationStatistics()
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| 43 | {
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| 44 | Reset();
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| 45 | }
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[414] | 46 | };
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| 47 |
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[463] | 48 | /** Simulated rendering using a simple render heuristics. Used to evaluate the
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| 49 | quality of the view cell partition.
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| 50 | */
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| 51 | class RenderSimulator
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| 52 | {
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| 53 |
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| 54 | public:
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| 55 | RenderSimulator();
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| 56 | /** Constructor taking the estimated render cost,
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| 57 | the view cell overhead,
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| 58 | and the average move speed of the player into account.
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| 59 | */
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| 60 | RenderSimulator(float objRendercost, float vcOverhead, float moveSpeed);
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| 61 |
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| 62 | /** Simulates rendering of the view cells.
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| 63 | @returns the statistics of the simulation.
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| 64 | */
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| 65 | virtual SimulationStatistics SimulateRendering() = 0;
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| 66 |
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| 67 | /** Sets estimated render time for a single object in the PVS.
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| 68 | */
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| 69 | void SetObjectRenderCost(const float objRenderCost);
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| 70 |
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| 71 | /** Contant overhead for crossing a view cell border.
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| 72 | */
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| 73 | void SetVcOverhead(const float vcOverhead);
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| 74 |
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| 75 | /** Average move speed of the player during rendering.
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| 76 | */
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| 77 | void SetMoveSpeed(const float moveSpeed);
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| 78 |
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| 79 |
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| 80 | protected:
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| 81 |
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| 82 | /// render time for single object of the PVS
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| 83 | float mObjRenderCost;
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| 84 | /// const overhead for crossing a view cell border
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| 85 | float mVcOverhead;
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| 86 | /// move speed of player
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| 87 | float mMoveSpeed;
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| 88 | };
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| 89 |
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| 90 | class BspRenderSimulator: public RenderSimulator
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| 91 | {
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| 92 | public:
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| 93 | BspRenderSimulator(BspTree *bspTree);
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| 94 |
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| 95 | BspRenderSimulator(float objRenderCost,
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| 96 | float vcOverhead,
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| 97 | float moveSpeed,
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| 98 | BspTree *bspTree);
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| 99 |
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[439] | 100 | SimulationStatistics SimulateRendering();
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[463] | 101 |
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| 102 | protected:
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| 103 | /** Simulates rendering of the pvs of one view cell, with given rendering time for an object.
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| 104 | @param viewCell the view cell holding the Pvs
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| 105 | @param objRenderTime estimated render time for one object of the Pvs
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| 106 | */
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| 107 | Real RenderPvs(ViewCell &viewCell, const float objRenderTime) const;
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| 108 |
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| 109 | private:
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| 110 | BspTree *mBspTree;
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[406] | 111 | };
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| 112 |
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[463] | 113 | class VspBspRenderSimulator: public RenderSimulator
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| 114 | {
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| 115 | public:
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| 116 | VspBspRenderSimulator(VspBspTree *vspBspTree);
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| 117 |
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| 118 | VspBspRenderSimulator(float objRenderCost,
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| 119 | float vcOverhead,
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| 120 | float moveSpeed,
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| 121 | VspBspTree *vspBspTree);
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| 122 |
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| 123 | SimulationStatistics SimulateRendering();
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| 124 |
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| 125 | protected:
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| 126 | /** Simulates rendering of the pvs of one view cell, with given rendering time for an object.
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| 127 | @param viewCell the view cell holding the Pvs
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| 128 | @param objRenderTime estimated render time for one object of the Pvs
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| 129 | */
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| 130 | Real RenderPvs(ViewCell &viewCell, const float objRenderTime) const;
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| 131 |
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| 132 | private:
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| 133 | VspBspTree *mVspBspTree;
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[449] | 134 | };
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| 135 |
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[463] | 136 | class KdRenderSimulator: public RenderSimulator
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| 137 | {
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| 138 | public:
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| 139 | KdRenderSimulator(KdTree *kdTree);
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| 140 |
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| 141 | KdRenderSimulator(float objRenderCost,
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| 142 | float vcOverhead,
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| 143 | float moveSpeed,
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| 144 | KdTree *kdTree);
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| 145 | SimulationStatistics SimulateRendering();
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| 146 |
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| 147 | protected:
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| 148 |
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| 149 | Real RenderPvs(KdLeaf *leaf, float objRenderTime) const;
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| 150 |
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| 151 | KdTree *mKdTree;
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| 152 | };
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| 153 |
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| 154 | class VspKdRenderSimulator: public RenderSimulator
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| 155 | {
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| 156 | public:
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| 157 | VspKdRenderSimulator(VspKdTree *vspKdTree);
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| 158 |
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| 159 | VspKdRenderSimulator(float objRenderCost,
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| 160 | float vcOverhead,
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| 161 | float moveSpeed,
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| 162 | VspKdTree *vspKdTree);
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| 163 |
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| 164 | SimulationStatistics SimulateRendering();
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| 165 |
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| 166 | protected:
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| 167 | /** Simulates rendering of the pvs of one view cell, with given rendering time for an object.
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| 168 | @param viewCell the view cell holding the Pvs
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| 169 | @param objRenderTime estimated render time for one object of the Pvs
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| 170 | */
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| 171 | Real RenderPvs(ViewCell &viewCell, const float objRenderTime) const;
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| 172 |
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| 173 | private:
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| 174 | VspKdTree *mVspKdTree;
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| 175 | };
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| 176 |
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[406] | 177 | #endif // RenderSimulator
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