[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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[406] | 11 |
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[414] | 12 | class SimulationStatistics: public StatisticsBase |
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| 13 | { |
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| 14 | public: |
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| 15 | /// view cell with the biggest "cost" |
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| 16 | float maxCost; |
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| 17 | /// view cell with the minimal "cost" |
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| 18 | float minCost; |
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| 19 | /// average render time |
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| 20 | float avgRenderTime; |
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| 21 | /// average render time with the overhead when crossing view cells |
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| 22 | float avgRtWithoutOverhead; |
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| 23 | |
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| 24 | void Reset() |
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| 25 | { |
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| 26 | maxCost = 0; |
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| 27 | minCost = 999999; |
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| 28 | avgRenderTime = 0; |
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| 29 | avgRtWithoutOverhead = 0; |
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| 30 | } |
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| 31 | |
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| 32 | void Print(ostream &app) const; |
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| 33 | |
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| 34 | friend ostream &operator<<(ostream &s, const SimulationStatistics &stat) |
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| 35 | { |
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| 36 | stat.Print(s); |
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| 37 | return s; |
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| 38 | } |
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[441] | 39 | |
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| 40 | SimulationStatistics() |
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| 41 | { |
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| 42 | Reset(); |
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| 43 | } |
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[414] | 44 | };
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| 45 |
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[406] | 46 | /** Simulated rendering using a simple render heuristics. Used to evaluate the |
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| 47 | quality of the view cell partition. |
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| 48 | */ |
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| 49 | class RenderSimulator |
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| 50 | { |
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[414] | 51 | |
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[406] | 52 | public: |
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| 53 | RenderSimulator(); |
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[439] | 54 | /** Constructor taking the estimated render cost, |
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| 55 | the view cell overhead, |
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| 56 | and the average move speed of the player into account. |
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| 57 | */ |
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[409] | 58 | RenderSimulator(float objRendercost, float vcOverhead, float moveSpeed); |
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[406] | 59 | |
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[439] | 60 | /** Simulates rendering of the view cells. |
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| 61 | @returns the statistics of the simulation. |
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| 62 | */ |
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| 63 | virtual SimulationStatistics SimulateRendering() = 0; |
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| 64 | |
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| 65 | /** Sets estimated render time for a single object in the PVS. |
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| 66 | */ |
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| 67 | void SetObjectRenderCost(const float objRenderCost); |
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| 68 | |
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| 69 | /** Contant overhead for crossing a view cell border. |
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| 70 | */ |
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| 71 | void SetVcOverhead(const float vcOverhead); |
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| 72 | |
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| 73 | /** Average move speed of the player during rendering. |
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| 74 | */ |
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| 75 | void SetMoveSpeed(const float moveSpeed); |
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| 76 | |
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| 77 | |
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| 78 | protected: |
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| 79 | |
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[409] | 80 | /// render time for single object of the PVS |
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[406] | 81 | float mObjRenderCost; |
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[409] | 82 | /// const overhead for crossing a view cell border |
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[406] | 83 | float mVcOverhead; |
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[409] | 84 | /// move speed of player |
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| 85 | float mMoveSpeed; |
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[406] | 86 | }; |
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| 87 | |
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[439] | 88 | class BspRenderSimulator: public RenderSimulator |
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[406] | 89 | { |
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| 90 | public: |
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[440] | 91 | BspRenderSimulator(BspTree *bspTree); |
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| 92 | |
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[439] | 93 | BspRenderSimulator(float objRenderCost, |
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[411] | 94 | float vcOverhead, |
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| 95 | float moveSpeed, |
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| 96 | BspTree *bspTree); |
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[406] | 97 | |
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[439] | 98 | SimulationStatistics SimulateRendering(); |
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[406] | 99 | |
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| 100 | protected: |
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| 101 | /** Simulates rendering of the pvs of one view cell, with given rendering time for an object. |
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| 102 | @param viewCell the view cell holding the Pvs |
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| 103 | @param objRenderTime estimated render time for one object of the Pvs |
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| 104 | */ |
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| 105 | Real RenderPvs(ViewCell &viewCell, const float objRenderTime) const; |
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| 106 | |
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| 107 | BspTree *mBspTree; |
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| 108 | }; |
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| 109 | |
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[439] | 110 | class KdRenderSimulator: public RenderSimulator |
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[406] | 111 | { |
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| 112 | public: |
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[440] | 113 | KdRenderSimulator(KdTree *kdTree); |
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| 114 | |
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[439] | 115 | KdRenderSimulator(float objRenderCost, |
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[411] | 116 | float vcOverhead, |
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| 117 | float moveSpeed, |
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| 118 | KdTree *kdTree); |
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[439] | 119 | SimulationStatistics SimulateRendering();
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[406] | 120 | |
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[407] | 121 | protected: |
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[406] | 122 | |
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[407] | 123 | Real RenderPvs(KdLeaf *leaf, float objRenderTime) const; |
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| 124 | |
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[406] | 125 | KdTree *mKdTree; |
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| 126 | };
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| 127 |
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| 128 | #endif // RenderSimulator
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