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 | namespace GtpVisibilityPreprocessor {
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15 |
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16 | class SceneGraph;
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17 | class ViewCellsManager;
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18 | class Mesh;
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19 | class MeshInstance;
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20 | class Intersectable;
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21 | class Material;
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22 | class Beam;
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23 | class KdTree;
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24 | class QWidget;
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25 | class GlRendererBuffer;
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26 | class BeamSampleStatistics;
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27 |
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28 | struct VssRayContainer;
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29 |
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30 | struct PvsRenderStatistics {
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31 |
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32 | float maxError;
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33 | float sumError;
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34 | int sumPvsSize;
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35 | int frames;
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36 | int errorFreeFrames;
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37 |
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38 | PvsRenderStatistics() { Reset(); }
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39 |
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40 | void Reset() {
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41 | maxError = 0.0f;
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42 | sumError = 0.0f;
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43 | frames = 0;
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44 | errorFreeFrames = 0;
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45 | sumPvsSize = 0;
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46 | }
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47 |
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48 | float GetMaxError() { return maxError; }
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49 | float GetAvgError() { return sumError/frames; }
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50 | float GetErrorFreeFrames() { return errorFreeFrames/(float)frames; }
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51 | float GetAvgPvs() { return sumPvsSize/(float)frames; }
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52 |
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53 | };
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54 |
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55 | struct RenderCostSample {
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56 |
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57 | RenderCostSample() {}
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58 |
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59 | void Reset() {
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60 | mVisibleObjects = 0;
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61 | mVisiblePixels = 0;
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62 | }
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63 |
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64 | // visible object from the given point
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65 | int mVisibleObjects;
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66 |
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67 | // visible pixels
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68 | int mVisiblePixels;
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69 |
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70 | };
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71 |
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72 | /** Class encapsulating gl rendering for the scene.
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73 | There is no gl context binding so the binding is performed in the
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74 | derived classes
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75 | */
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76 |
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77 | class GlRenderer: public Renderer
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78 | {
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79 |
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80 | public:
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81 | ObjectContainer mObjects;
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82 |
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83 | Vector3 mViewPoint;
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84 | Vector3 mViewDirection;
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85 |
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86 | int timerId;
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87 | bool mUseFalseColors;
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88 | bool mUseForcedColors;
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89 |
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90 | HaltonSequence halton;
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91 |
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92 | int mFrame;
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93 | bool mWireFrame;
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94 |
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95 | bool mDetectEmptyViewSpace;
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96 | bool mSnapErrorFrames;
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97 |
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98 | bool mUseGlLists;
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99 |
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100 | QString mSnapPrefix;
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101 |
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102 | KdTree *mKdTree;
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103 |
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104 | QWaitCondition mRenderingFinished;
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105 |
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106 | vector<unsigned int> mOcclusionQueries;
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107 |
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108 | GlRenderer(SceneGraph *sceneGraph,
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109 | ViewCellsManager *viewcells,
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110 | KdTree *tree);
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111 |
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112 | ~GlRenderer();
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113 |
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114 |
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115 | void SetupFalseColor(const int id);
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116 | void RenderIntersectable(Intersectable *);
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117 | void RenderViewCell(ViewCell *vc);
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118 | void RenderMeshInstance(MeshInstance *mi);
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119 | void RenderMesh(Mesh *m);
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120 | void SetupMaterial(Material *m);
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121 | virtual void SetupCamera();
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122 |
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123 | bool
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124 | RenderScene();
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125 |
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126 | void
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127 | _RenderScene();
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128 |
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129 |
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130 | virtual void
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131 | SetupProjection(const int w, const int h, const float angle = 70.0f);
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132 |
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133 |
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134 |
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135 |
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136 | void InitGL();
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137 |
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138 | virtual int GetWidth() const = 0;
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139 | virtual int GetHeight() const = 0;
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140 |
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141 | int GetId(int r, int g, int b) const;
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142 | };
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143 |
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144 |
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145 | class GlRendererBuffer : public QObject, public QGLPixelBuffer, public GlRenderer
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146 | {
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147 | Q_OBJECT
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148 | public:
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149 | GlRendererBuffer(const int w,
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150 | const int h,
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151 | SceneGraph *sceneGraph,
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152 | ViewCellsManager *viewcells,
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153 | KdTree *tree);
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154 |
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155 |
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156 | void
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157 | EvalRenderCostSample(
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158 | RenderCostSample &sample
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159 | );
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160 |
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161 | void
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162 | SampleRenderCost(
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163 | const int n,
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164 | vector<RenderCostSample> &samples
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165 | );
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166 |
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167 |
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168 | void
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169 | EvalPvsStat();
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170 |
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171 | void
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172 | ClearErrorBuffer();
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173 |
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174 |
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175 | virtual int GetWidth() const { return width(); }
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176 | virtual int GetHeight() const { return height(); }
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177 |
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178 |
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179 | void RandomViewPoint();
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180 | void SampleBeamContributions(
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181 | Intersectable *sourceObject,
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182 | Beam &beam,
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183 | const int samples,
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184 | BeamSampleStatistics &stat
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185 | );
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186 |
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187 | void
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188 | SampleViewpointContributions(
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189 | Intersectable *sourceObject,
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190 | const Vector3 viewPoint,
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191 | Beam &beam,
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192 | const int desiredSamples,
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193 | BeamSampleStatistics &stat
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194 | );
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195 |
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196 | void InitGL();
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197 |
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198 | /** Computes rays from information gained with hw sampling-
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199 | */
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200 | void ComputeRays(Intersectable *sourceObj, VssRayContainer &rays);
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201 |
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202 | int ComputePvs() const;
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203 |
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204 | float
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205 | GetPixelError(int &pvsSize);
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206 |
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207 | int ComputePvs(ObjectContainer &objects, ObjectContainer &pvs) const;
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208 |
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209 | PvsRenderStatistics mPvsStat;
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210 |
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211 | int mPvsStatFrames;
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212 | struct PvsErrorEntry {
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213 | PvsErrorEntry() {}
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214 | float mError;
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215 | int mPvsSize;
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216 | Vector3 mPosition;
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217 | Vector3 mDirection;
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218 | };
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219 |
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220 | vector<PvsErrorEntry> mPvsErrorBuffer;
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221 |
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222 | private:
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223 | unsigned int *mPixelBuffer;
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224 |
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225 | static void GenQueries(const int numQueries);
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226 |
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227 | void SetupProjectionForViewPoint(const Vector3 &viewPoint,
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228 | const Beam &beam,
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229 |
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230 | Intersectable *sourceObject);
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231 |
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232 | public:
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233 | signals:
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234 | UpdatePvsErrorItem(int i,
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235 | GlRendererBuffer::PvsErrorEntry &);
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236 | };
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237 |
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238 |
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239 | class RendererControlWidget : public QWidget
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240 | {
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241 | Q_OBJECT
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242 | public:
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243 |
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244 | QListWidget *mPvsErrorWidget;
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245 |
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246 | RendererControlWidget(QWidget * parent = 0, Qt::WFlags f = 0);
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247 |
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248 | public slots:
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249 |
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250 | void FocusNextPvsErrorFrame();
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251 | void UpdatePvsErrorItem(int i,
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252 | GlRendererBuffer::PvsErrorEntry &);
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253 |
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254 | signals:
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255 |
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256 | SetViewCellGranularity(int);
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257 | SetSceneCut(int);
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258 | SetTopDistance(int);
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259 | SetVisibilityFilterSize(int);
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260 |
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261 | SetRenderFilter(bool);
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262 | SetRenderErrors(bool);
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263 | SetShowViewCells(bool);
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264 | SetShowRenderCost(bool);
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265 | SetShowPvsSizes(bool);
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266 | SetTopView(bool);
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267 | SetCutViewCells(bool);
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268 | SetCutScene(bool);
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269 |
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270 |
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271 | };
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272 |
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273 | class GlRendererWidget : public QGLWidget, public GlRenderer
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274 | {
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275 | Q_OBJECT
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276 | public:
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277 |
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278 | // point of the last mouse click used for movement in the scene
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279 | Vector3 mousePoint;
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280 |
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281 | bool mTopView;
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282 | bool mRenderViewCells;
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283 | bool mCutViewCells;
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284 | bool mCutScene;
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285 | bool mRenderErrors;
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286 | bool mRenderFilter;
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287 | bool mShowRenderCost;
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288 | bool mShowPvsSizes;
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289 |
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290 | Plane3 mSceneCutPlane;
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291 | float mTopDistance;
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292 |
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293 | // some statistics
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294 | int mPvsSize;
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295 | float mRenderError;
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296 |
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297 | RendererControlWidget *mControlWidget;
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298 |
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299 | GlRendererWidget(SceneGraph *sceneGraph,
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300 | ViewCellsManager *viewcells,
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301 | KdTree *tree,
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302 | QWidget * parent = 0, const QGLWidget * shareWidget = 0, Qt::WFlags f = 0
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303 | );
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304 |
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305 |
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306 | virtual void SetupCamera();
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307 |
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308 | void initializeGL() {
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309 | InitGL();
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310 | }
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311 | void resizeGL(int w, int h);
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312 | void paintGL();
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313 | void timerEvent(QTimerEvent *) {
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314 | update();
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315 | }
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316 |
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317 | void mousePressEvent(QMouseEvent *);
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318 | void mouseReleaseEvent(QMouseEvent *);
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319 | void mouseMoveEvent(QMouseEvent *);
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320 |
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321 | void keyPressEvent ( QKeyEvent * e ) ;
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322 |
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323 | void
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324 | RenderPvs();
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325 |
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326 | float
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327 | RenderErrors();
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328 | void
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329 | RenderInfo();
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330 |
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331 | virtual int GetWidth() const { return width(); }
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332 | virtual int GetHeight() const { return height(); }
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333 |
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334 | virtual void
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335 | SetupProjection(const int w, const int h);
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336 |
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337 | void
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338 | RenderViewCells();
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339 |
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340 | public slots:
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341 |
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342 | void SetRenderErrors(bool b) {
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343 | mRenderErrors = b;
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344 | updateGL();
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345 | }
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346 |
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347 | void SetRenderFilter(bool b) {
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348 | mRenderFilter = b;
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349 | updateGL();
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350 | }
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351 |
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352 |
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353 | void
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354 | SetViewCellGranularity(int number);
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355 |
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356 | void
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357 | SetVisibilityFilterSize(int number);
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358 |
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359 | void
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360 | SetSceneCut(int cut);
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361 |
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362 | void
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363 | SetTopDistance(int dist);
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364 |
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365 | void SetShowViewCells(bool b) {
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366 | mRenderViewCells = b;
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367 | updateGL();
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368 | }
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369 |
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370 | void SetShowRenderCost(bool b) {
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371 | mShowRenderCost = b;
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372 | updateGL();
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373 | }
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374 |
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375 | void SetShowPvsSizes(bool b) {
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376 | mShowPvsSizes = b;
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377 | updateGL();
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378 | }
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379 |
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380 | void SetTopView(bool b) {
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381 | mTopView = b;
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382 | updateGL();
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383 | }
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384 |
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385 | void SetCutViewCells(bool b) {
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386 | mCutViewCells = b;
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387 | updateGL();
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388 | }
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389 | void SetCutScene(bool b) {
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390 | mCutScene = b;
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391 | updateGL();
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392 | }
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393 |
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394 |
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395 | };
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396 |
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397 |
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398 | extern GlRendererWidget *rendererWidget;
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399 |
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400 | class GlDebuggerWidget : public QGLWidget
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401 | {
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402 | Q_OBJECT
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403 | public:
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404 | GlDebuggerWidget(GlRendererBuffer *buf, QWidget *parent = NULL);
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405 | ~GlDebuggerWidget();
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406 | void initializeGL();
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407 | void resizeGL(int w, int h);
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408 | void paintGL();
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409 | void timerEvent(QTimerEvent *) { update(); }
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410 | void mousePressEvent(QMouseEvent *) { killTimer(timerId); }
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411 | void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); }
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412 |
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413 | void initCommon();
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414 | void initPbuffer();
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415 |
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416 |
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417 | GlRendererBuffer *mRenderBuffer;
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418 |
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419 | Beam mBeam;
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420 | int mSamples;
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421 | Intersectable *mSourceObject;
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422 |
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423 | private:
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424 | GLuint dynamicTexture;
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425 | int timerId;
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426 | };
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427 |
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428 | extern GlDebuggerWidget *debuggerWidget;
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429 |
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430 | }
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431 |
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432 | #endif
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433 |
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