1 | #ifndef __RENDERER_H
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2 | #define __RENDERER_H
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3 |
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4 | #include <QtOpenGL>
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5 | #include <QWaitCondition>
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6 | //#include <QGLPixelBuffer>
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7 |
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8 | #include "Vector3.h"
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9 | #include "Containers.h"
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10 | #include "Halton.h"
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11 | #include "Renderer.h"
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12 | #include "Beam.h"
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13 |
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14 | class SceneGraph;
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15 | class ViewCellsManager;
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16 | class Mesh;
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17 | class MeshInstance;
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18 | class Intersectable;
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19 | class Material;
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20 | class Beam;
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21 | class KdTree;
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22 | class QWidget;
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23 | class GlRendererBuffer;
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24 | class BeamSampleStatistics;
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25 |
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26 | struct VssRayContainer;
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27 |
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28 | struct PvsRenderStatistics {
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29 |
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30 | float maxError;
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31 | float sumError;
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32 | int sumPvsSize;
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33 | int frames;
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34 | int errorFreeFrames;
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35 |
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36 | PvsRenderStatistics() { Reset(); }
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37 |
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38 | void Reset() {
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39 | maxError = 0.0f;
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40 | sumError = 0.0f;
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41 | frames = 0;
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42 | errorFreeFrames = 0;
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43 | sumPvsSize = 0;
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44 | }
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45 |
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46 | float GetMaxError() { return maxError; }
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47 | float GetAvgError() { return sumError/frames; }
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48 | float GetErrorFreeFrames() { return errorFreeFrames/(float)frames; }
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49 | float GetAvgPvs() { return sumPvsSize/(float)frames; }
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50 |
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51 | };
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52 |
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53 |
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54 | /** Class encapsulating gl rendering for the scene.
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55 | There is no gl context binding so the binding is performed in the
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56 | derived classes
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57 | */
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58 |
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59 | class GlRenderer: public Renderer
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60 | {
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61 |
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62 | public:
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63 | ObjectContainer mObjects;
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64 |
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65 | Vector3 mViewPoint;
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66 | Vector3 mViewDirection;
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67 |
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68 | int timerId;
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69 | bool mUseFalseColors;
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70 |
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71 | HaltonSequence halton;
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72 |
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73 | int mFrame;
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74 | bool mWireFrame;
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75 |
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76 | bool mDetectEmptyViewSpace;
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77 | bool mSnapErrorFrames;
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78 | QString mSnapPrefix;
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79 |
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80 | KdTree *mKdTree;
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81 |
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82 | QWaitCondition mRenderingFinished;
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83 |
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84 |
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85 | GlRenderer(SceneGraph *sceneGraph,
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86 | ViewCellsManager *viewcells,
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87 | KdTree *tree);
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88 |
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89 | ~GlRenderer();
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90 |
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91 |
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92 | void SetupFalseColor(const int id);
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93 | void RenderIntersectable(Intersectable *);
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94 | void RenderViewCell(ViewCell *vc);
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95 | void RenderMeshInstance(MeshInstance *mi);
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96 | void RenderMesh(Mesh *m);
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97 | void SetupMaterial(Material *m);
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98 | virtual void SetupCamera();
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99 |
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100 | bool
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101 | RenderScene();
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102 |
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103 |
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104 | virtual void
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105 | SetupProjection(const int w, const int h);
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106 |
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107 |
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108 |
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109 |
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110 | void InitGL();
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111 |
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112 | virtual int GetWidth() const = 0;
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113 | virtual int GetHeight() const = 0;
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114 |
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115 | int GetId(int r, int g, int b) const;
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116 | };
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117 |
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118 |
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119 | class GlRendererBuffer : public QGLPixelBuffer, public GlRenderer
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120 | {
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121 | public:
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122 | GlRendererBuffer(const int w,
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123 | const int h,
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124 | SceneGraph *sceneGraph,
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125 | ViewCellsManager *viewcells,
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126 | KdTree *tree);
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127 |
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128 |
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129 | void
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130 | EvalPvsStat();
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131 |
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132 | void
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133 | ClearErrorBuffer();
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134 |
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135 |
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136 | virtual int GetWidth() const { return width(); }
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137 | virtual int GetHeight() const { return height(); }
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138 |
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139 |
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140 | void RandomViewPoint();
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141 | void SampleBeamContributions(
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142 | Intersectable *sourceObject,
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143 | Beam &beam,
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144 | const int samples,
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145 | BeamSampleStatistics &stat
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146 | );
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147 |
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148 | void
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149 | SampleViewpointContributions(
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150 | Intersectable *sourceObject,
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151 | const Vector3 viewPoint,
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152 | Beam &beam,
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153 | const int desiredSamples,
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154 | BeamSampleStatistics &stat
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155 | );
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156 |
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157 | void InitGL();
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158 |
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159 | /** Computes rays from information gained with hw sampling-
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160 | */
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161 | void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
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162 |
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163 | int ComputePvs() const;
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164 |
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165 | float
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166 | GetPixelError(int &pvsSize);
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167 |
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168 | int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const;
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169 |
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170 | PvsRenderStatistics mPvsStat;
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171 |
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172 | int mPvsStatFrames;
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173 | struct PvsErrorEntry {
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174 | PvsErrorEntry() {}
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175 | float mError;
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176 | int mPvsSize;
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177 | };
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178 |
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179 | vector<PvsErrorEntry> mPvsErrorBuffer;
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180 |
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181 | private:
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182 |
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183 | static void GenQueries(const int numQueries);
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184 |
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185 | void SetupProjectionForViewPoint(const Vector3 &viewPoint,
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186 | const Beam &beam,
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187 | Intersectable *sourceObject);
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188 | };
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189 |
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190 |
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191 | class RendererControlWidget : public QWidget
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192 | {
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193 | Q_OBJECT
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194 | public:
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195 | RendererControlWidget(QWidget * parent = 0, Qt::WFlags f = 0);
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196 |
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197 | signals:
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198 |
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199 | SetViewCellGranularity(int);
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200 | SetSceneCut(int);
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201 | SetTopDistance(int);
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202 | SetVisibilityFilterSize(int);
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203 |
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204 | SetShowViewCells(bool);
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205 | SetTopView(bool);
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206 | SetCutViewCells(bool);
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207 | SetCutScene(bool);
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208 |
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209 |
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210 | };
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211 |
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212 | class GlRendererWidget : public QGLWidget, public GlRenderer
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213 | {
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214 | Q_OBJECT
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215 | public:
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216 |
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217 | // point of the last mouse click used for movement in the scene
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218 | Vector3 mousePoint;
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219 |
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220 | bool mTopView;
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221 | bool mRenderViewCells;
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222 | bool mCutViewCells;
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223 | bool mCutScene;
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224 |
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225 | Plane3 mSceneCutPlane;
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226 | float mTopDistance;
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227 |
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228 | GlRendererWidget(SceneGraph *sceneGraph,
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229 | ViewCellsManager *viewcells,
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230 | KdTree *tree,
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231 | QWidget * parent = 0, const QGLWidget * shareWidget = 0, Qt::WFlags f = 0
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232 | );
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233 |
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234 |
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235 | virtual void SetupCamera();
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236 |
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237 | void initializeGL() {
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238 | InitGL();
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239 | }
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240 | void resizeGL(int w, int h);
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241 | void paintGL();
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242 | void timerEvent(QTimerEvent *) {
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243 | update();
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244 | }
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245 |
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246 | void mousePressEvent(QMouseEvent *);
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247 | void mouseReleaseEvent(QMouseEvent *);
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248 | void mouseMoveEvent(QMouseEvent *);
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249 |
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250 | void keyPressEvent ( QKeyEvent * e ) ;
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251 |
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252 | float
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253 | RenderErrors();
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254 | void
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255 | RenderInfo();
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256 |
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257 | virtual int GetWidth() const { return width(); }
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258 | virtual int GetHeight() const { return height(); }
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259 |
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260 | virtual void
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261 | SetupProjection(const int w, const int h);
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262 |
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263 | void
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264 | RenderViewCells();
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265 |
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266 | public slots:
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267 | void
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268 | SetViewCellGranularity(int number);
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269 |
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270 | void
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271 | SetVisibilityFilterSize(int number);
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272 |
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273 | void
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274 | SetSceneCut(int cut);
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275 |
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276 | void
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277 | SetTopDistance(int dist);
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278 |
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279 | void SetShowViewCells(bool b) {
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280 | mRenderViewCells = b;
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281 | updateGL();
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282 | }
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283 |
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284 | void SetTopView(bool b) {
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285 | mTopView = b;
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286 | updateGL();
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287 | }
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288 |
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289 | void SetCutViewCells(bool b) {
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290 | mCutViewCells = b;
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291 | updateGL();
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292 | }
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293 | void SetCutScene(bool b) {
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294 | mCutScene = b;
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295 | updateGL();
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296 | }
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297 |
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298 | };
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299 |
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300 |
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301 | extern GlRendererWidget *rendererWidget;
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302 |
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303 | class GlDebuggerWidget : public QGLWidget
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304 | {
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305 | Q_OBJECT
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306 | public:
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307 | GlDebuggerWidget(GlRendererBuffer *buf, QWidget *parent = NULL);
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308 | ~GlDebuggerWidget();
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309 | void initializeGL();
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310 | void resizeGL(int w, int h);
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311 | void paintGL();
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312 | void timerEvent(QTimerEvent *) { update(); }
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313 | void mousePressEvent(QMouseEvent *) { killTimer(timerId); }
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314 | void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); }
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315 |
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316 | void initCommon();
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317 | void initPbuffer();
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318 |
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319 |
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320 | GlRendererBuffer *mRenderBuffer;
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321 |
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322 | Beam mBeam;
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323 | int mSamples;
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324 | Intersectable *mSourceObject;
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325 |
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326 | private:
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327 | GLuint dynamicTexture;
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328 | int timerId;
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329 | };
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330 |
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331 | extern GlDebuggerWidget *debuggerWidget;
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332 |
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333 | #endif
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334 |
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