1 | #include "Mesh.h"
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2 | #include "glInterface.h"
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3 | #include "OcclusionQuery.h"
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4 | #include "QtGlRenderer.h"
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5 | #include "ViewCellsManager.h"
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6 | #include "SceneGraph.h"
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7 | #include "Pvs.h"
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8 | #include "Viewcell.h"
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9 | #include "Beam.h"
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10 | #include "KdTree.h"
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11 | #include "Environment.h"
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12 | #include "RssPreprocessor.h"
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13 | #include "RssTree.h"
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14 | #include "Trackball.h"
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15 |
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16 |
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17 | #include <Cg/cg.h>
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18 | #include <Cg/cgGL.h>
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19 |
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20 | #include <QVBoxLayout>
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21 |
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22 | namespace GtpVisibilityPreprocessor {
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23 |
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24 |
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25 | #define CAMERA_VIEW_WIDTH 0.5f
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26 |
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27 | class ViewCellsManager;
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28 |
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29 | static CGcontext sCgContext = NULL;
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30 | static CGprogram sCgFragmentProgram = NULL;
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31 | static CGprofile sCgFragmentProfile;
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32 |
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33 | GLuint frontDepthMap;
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34 | GLuint backDepthMap;
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35 |
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36 | const int depthMapSize = 512;
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37 |
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38 | //static vector<OcclusionQuery *> sQueries;
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39 |
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40 | QtGlRendererWidget *rendererWidget = NULL;
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41 | QtGlDebuggerWidget *debuggerWidget = NULL;
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42 |
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43 |
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44 | static inline bool ilt(Intersectable *obj1, Intersectable *obj2)
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45 | {
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46 | return obj1->mId < obj2->mId;
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47 | }
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48 |
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49 |
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50 | static void handleCgError()
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51 | {
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52 | Debug << "Cg error: " << cgGetErrorString(cgGetError()) << endl;
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53 | exit(1);
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54 | }
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55 |
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56 | void
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57 | QtGlRendererBuffer::EvalRenderCostSample(RenderCostSample &sample,
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58 | const bool useOcclusionQueries,
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59 | const int threshold
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60 | )
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61 | {
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62 | // choose a random view point
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63 | mViewCellsManager->GetViewPoint(mViewPoint);
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64 | sample.mPosition = mViewPoint;
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65 | //cout << "viewpoint: " << mViewPoint << endl;
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66 |
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67 | // take a render cost sample by rendering a cube
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68 | Vector3 directions[6];
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69 |
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70 | directions[0] = Vector3(1,0,0);
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71 | directions[1] = Vector3(0,1,0);
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72 | directions[2] = Vector3(0,0,1);
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73 | directions[3] = Vector3(-1,0,0);
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74 | directions[4] = Vector3(0,-1,0);
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75 | directions[5] = Vector3(0,0,-1);
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76 |
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77 | sample.mVisibleObjects = 0;
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78 |
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79 | // reset object counters
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80 | ObjectContainer::const_iterator it, it_end = mObjects.end();
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81 |
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82 | for (it = mObjects.begin(); it != it_end; ++ it)
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83 | {
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84 | (*it)->mCounter = 0;
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85 | }
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86 |
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87 | ++ mFrame;
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88 |
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89 | //glCullFace(GL_FRONT);
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90 | glCullFace(GL_BACK);
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91 | glDisable(GL_CULL_FACE);
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92 |
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93 |
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94 | // query all 6 directions for a full point sample
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95 | for (int i = 0; i < 6; ++ i)
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96 | {
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97 | mViewDirection = directions[i];
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98 | SetupCamera();
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99 |
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100 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
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101 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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102 | //glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); glDepthMask(GL_TRUE);
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103 | glDepthFunc(GL_LESS);
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104 |
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105 | mUseFalseColors = true;
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106 |
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107 | // the actual scene rendering fills the depth (for occlusion queries)
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108 | // and the frame buffer (for item buffer)
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109 | RenderScene();
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110 |
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111 |
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112 | if (0)
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113 | {
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114 | char filename[256];
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115 | sprintf(filename, "snap/frame-%04d-%d.png", mFrame, i);
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116 | QImage im = toImage();
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117 | im.save(filename, "PNG");
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118 | }
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119 |
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120 | // evaluate the sample
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121 | if (useOcclusionQueries)
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122 | {
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123 | EvalQueryWithOcclusionQueries();
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124 | }
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125 | else
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126 | {
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127 | EvalQueryWithItemBuffer();
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128 | }
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129 | }
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130 |
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131 | // now evaluate the statistics over that sample
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132 | // currently only the number of visible objects is taken into account
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133 | sample.Reset();
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134 |
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135 | for (it = mObjects.begin(); it != it_end; ++ it)
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136 | {
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137 | Intersectable *obj = *it;
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138 | if (obj->mCounter >= threshold)
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139 | {
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140 | ++ sample.mVisibleObjects;
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141 | sample.mVisiblePixels += obj->mCounter;
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142 | }
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143 | }
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144 |
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145 | //cout << "RS=" << sample.mVisibleObjects << " ";
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146 | }
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147 |
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148 |
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149 | QtGlRendererBuffer::~QtGlRendererBuffer()
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150 | {
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151 | if (sCgFragmentProgram)
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152 | cgDestroyProgram(sCgFragmentProgram);
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153 | if (sCgContext)
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154 | cgDestroyContext(sCgContext);
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155 | }
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156 |
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157 |
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158 | void
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159 | QtGlRendererBuffer::SampleRenderCost(const int numSamples,
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160 | vector<RenderCostSample> &samples,
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161 | const bool useOcclusionQueries,
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162 | const int threshold
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163 | )
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164 | {
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165 | makeCurrent();
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166 |
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167 | if (mPixelBuffer == NULL)
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168 | mPixelBuffer = new unsigned int[GetWidth()*GetHeight()];
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169 |
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170 | // using 90 degree projection to capture 360 view with 6 samples
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171 | SetupProjection(GetHeight(), GetHeight(), 90.0f);
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172 |
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173 | //samples.resize(numSamples);
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174 | halton.Reset();
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175 |
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176 | // the number of queries queried in batch mode
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177 | const int numQ = 500;
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178 |
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179 | //const int numQ = (int)mObjects.size();
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180 | if (useOcclusionQueries)
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181 | {
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182 | cout << "\ngenerating " << numQ << " queries ... ";
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183 | OcclusionQuery::GenQueries(mOcclusionQueries, numQ);
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184 | cout << "finished" << endl;
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185 | }
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186 |
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187 | // sampling queries
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188 | for (int i = 0; i < numSamples; ++ i)
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189 | {
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190 | cout << ".";
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191 | EvalRenderCostSample(samples[i], useOcclusionQueries, threshold);
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192 | }
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193 |
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194 | doneCurrent();
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195 |
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196 | }
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197 |
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198 |
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199 |
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200 | QtGlRendererBuffer::QtGlRendererBuffer(const int w,
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201 | const int h,
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202 | SceneGraph *sceneGraph,
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203 | ViewCellsManager *viewcells,
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204 | KdTree *tree):
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205 | QGLPixelBuffer(QSize(w, h)), GlRendererBuffer(sceneGraph, viewcells, tree) {
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206 |
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207 | Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", mPvsStatFrames);
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208 | mPvsErrorBuffer.resize(mPvsStatFrames);
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209 | ClearErrorBuffer();
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210 |
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211 | mPixelBuffer = NULL;
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212 |
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213 | makeCurrent();
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214 | InitGL();
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215 | doneCurrent();
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216 |
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217 | }
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218 |
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219 | float
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220 | QtGlRendererBuffer::GetPixelError(int &pvsSize)
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221 | {
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222 | float pErrorPixels = -1.0f;
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223 |
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224 | glReadBuffer(GL_BACK);
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225 |
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226 | // mUseFalseColors = true;
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227 |
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228 | mUseFalseColors = false;
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229 | unsigned int pixelCount;
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230 |
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231 | //static int query = -1;
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232 | //if (query == -1)
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233 | // glGenOcclusionQueriesNV(1, (unsigned int *)&query);
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234 |
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235 | OcclusionQuery query;
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236 |
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237 | if (mDetectEmptyViewSpace) {
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238 | // now check whether any backfacing polygon would pass the depth test
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239 | SetupCamera();
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240 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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241 | glEnable( GL_CULL_FACE );
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242 |
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243 | RenderScene();
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244 |
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245 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
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246 | glDepthMask(GL_FALSE);
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247 | glDisable( GL_CULL_FACE );
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248 |
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249 |
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250 | query.BeginQuery();
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251 |
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252 | RenderScene();
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253 |
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254 | query.EndQuery();
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255 |
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256 | // at this point, if possible, go and do some other computation
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257 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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258 | glDepthMask(GL_TRUE);
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259 | glEnable( GL_CULL_FACE );
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260 |
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261 | // reenable other state
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262 | pixelCount = query.GetQueryResult();
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263 |
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264 | if (pixelCount > 0)
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265 | return -1.0f; // backfacing polygon found -> not a valid viewspace sample
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266 | } else
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267 | glDisable( GL_CULL_FACE );
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268 |
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269 |
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270 | ViewCell *viewcell = NULL;
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271 |
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272 | PrVs prvs;
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273 |
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274 | mViewCellsManager->SetMaxFilterSize(0);
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275 | mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
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276 | viewcell = prvs.mViewCell;
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277 |
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278 | // ViewCell *viewcell = mViewCellsManager->GetViewCell(mViewPoint);
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279 | pvsSize = 0;
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280 | if (viewcell) {
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281 | SetupCamera();
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282 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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283 |
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284 | glColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
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285 |
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286 | // Render PVS
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287 | ObjectPvsMap::const_iterator it = viewcell->GetPvs().mEntries.begin();
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288 |
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289 | pvsSize = viewcell->GetPvs().mEntries.size();
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290 |
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291 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
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292 | Intersectable *object = (*it).first;
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293 | RenderIntersectable(object);
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294 | }
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295 |
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296 | // glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
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297 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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298 | mUseFalseColors = true;
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299 |
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300 | query.BeginQuery();
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301 |
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302 | SetupCamera();
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303 |
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304 | RenderScene();
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305 |
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306 | query.EndQuery();
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307 |
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308 |
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309 | unsigned int pixelCount;
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310 | // reenable other state
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311 | pixelCount = query.GetQueryResult();
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312 |
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313 |
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314 | pErrorPixels = ((float)pixelCount)/(GetWidth()*GetHeight());
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315 | if (mSnapErrorFrames && pErrorPixels > 0.01) {
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316 |
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317 | char filename[256];
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318 | sprintf(filename, "error-frame-%04d-%0.5f.png", mFrame, pErrorPixels);
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319 | QImage im = toImage();
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320 | string str = mSnapPrefix + filename;
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321 | QString qstr(str.c_str());
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322 |
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323 | im.save(qstr, "PNG");
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324 | if (1) { //0 && mFrame == 1543) {
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325 | int x,y;
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326 | int lastIndex = -1;
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327 | for (y=0; y < im.height(); y++)
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328 | for (x=0; x < im.width(); x++) {
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329 | QRgb p = im.pixel(x,y);
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330 | int index = qRed(p) + (qGreen(p)<<8) + (qBlue(p)<<16);
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331 | if (qGreen(p) != 255 && index!=0) {
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332 | if (index != lastIndex) {
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333 | // Debug<<"ei="<<index<<" ";
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334 | lastIndex = index;
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335 | }
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336 | }
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337 | }
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338 | }
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339 |
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340 |
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341 | mUseFalseColors = false;
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342 | glPushAttrib(GL_CURRENT_BIT);
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343 | glColor3f(0,1,0);
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344 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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345 | SetupCamera();
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346 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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347 |
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348 | // Render PVS
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349 | ObjectPvsMap::const_iterator it = viewcell->GetPvs().mEntries.begin();
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350 |
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351 | for (; it != viewcell->GetPvs().mEntries.end(); ++ it) {
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352 | Intersectable *object = (*it).first;
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353 | RenderIntersectable(object);
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354 | }
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355 |
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356 | im = toImage();
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357 | sprintf(filename, "error-frame-%04d-%0.5f-pvs.png", mFrame, pErrorPixels);
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358 | str = mSnapPrefix + filename;
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359 | qstr = str.c_str();
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360 | im.save(qstr, "PNG");
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361 | glPopAttrib();
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362 | }
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363 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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364 | }
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365 |
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366 | if (viewcell && mViewCellsManager->GetMaxFilterSize() > 0)
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367 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
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368 |
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369 | return pErrorPixels;
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370 | }
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371 |
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372 |
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373 | void
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374 | QtGlRendererBuffer::ClearErrorBuffer()
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375 | {
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376 | for (int i=0; i < mPvsStatFrames; i++) {
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377 | mPvsErrorBuffer[i].mError = 1.0f;
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378 | }
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379 | }
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380 |
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381 |
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382 | void
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383 | QtGlRendererBuffer::EvalPvsStat()
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384 | {
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385 | mPvsStat.Reset();
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386 | halton.Reset();
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387 |
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388 | makeCurrent();
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389 |
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390 | SetupProjection(GetWidth(), GetHeight());
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391 |
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392 | for (int i=0; i < mPvsStatFrames; i++) {
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393 | float err;
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394 | // set frame id for saving the error buffer
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395 | mFrame = i;
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396 | RandomViewPoint();
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397 |
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398 | // atlanta problematic frames: 325 525 691 1543
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399 | #if 0
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400 | if (mFrame != 325 &&
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401 | mFrame != 525 &&
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402 | mFrame != 691 &&
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403 | mFrame != 1543)
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404 | mPvsErrorBuffer[i] = -1;
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405 | else {
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406 | Debug<<"frame ="<<mFrame<<" vp="<<mViewPoint<<" vd="<<mViewDirection<<endl;
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407 | }
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408 | #endif
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409 | if (mPvsErrorBuffer[i].mError > 0.0f) {
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410 | int pvsSize;
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411 |
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412 |
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413 | float error = GetPixelError(pvsSize);
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414 | mPvsErrorBuffer[i].mError = error;
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415 | mPvsErrorBuffer[i].mPvsSize = pvsSize;
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416 |
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417 | emit UpdatePvsErrorItem(i,
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418 | mPvsErrorBuffer[i]);
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419 |
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420 | cout<<"("<<i<<","<<mPvsErrorBuffer[i].mError<<")";
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421 | // swapBuffers();
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422 | }
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423 |
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424 | err = mPvsErrorBuffer[i].mError;
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425 |
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426 | if (err >= 0.0f) {
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427 | if (err > mPvsStat.maxError)
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428 | mPvsStat.maxError = err;
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429 | mPvsStat.sumError += err;
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430 | mPvsStat.sumPvsSize += mPvsErrorBuffer[i].mPvsSize;
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431 |
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432 | if (err == 0.0f)
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433 | mPvsStat.errorFreeFrames++;
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434 | mPvsStat.frames++;
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435 | }
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436 | }
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437 |
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438 | glFinish();
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439 | doneCurrent();
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440 |
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441 | cout<<endl<<flush;
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442 | // mRenderingFinished.wakeAll();
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443 | }
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444 |
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445 |
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446 |
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447 |
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448 |
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449 |
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450 |
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451 | void QtGlRendererBuffer::SampleBeamContributions(Intersectable *sourceObject,
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452 | Beam &beam,
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453 | const int desiredSamples,
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454 | BeamSampleStatistics &stat)
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455 | {
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456 | // TODO: should be moved out of here (not to be done every time)
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457 | // only back faces are interesting for the depth pass
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458 | glShadeModel(GL_FLAT);
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459 | glDisable(GL_LIGHTING);
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460 |
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461 | // needed to kill the fragments for the front buffer
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462 | glEnable(GL_ALPHA_TEST);
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463 | glAlphaFunc(GL_GREATER, 0);
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464 |
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465 | // assumes that the beam is constructed and contains kd-tree nodes
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466 | // and viewcells which it intersects
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467 |
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468 |
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469 | // Get the number of viewpoints to be sampled
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470 | // Now it is a sqrt but in general a wiser decision could be made.
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471 | // The less viewpoints the better for rendering performance, since less passes
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472 | // over the beam is needed.
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473 | // The viewpoints could actually be generated outside of the bounding box which
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474 | // would distribute the 'efective viewpoints' of the object surface and thus
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475 | // with a few viewpoints better sample the viewpoint space....
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476 |
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477 | //TODO: comment in
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478 | //int viewPointSamples = sqrt((float)desiredSamples);
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479 | int viewPointSamples = max(desiredSamples / (GetWidth() * GetHeight()), 1);
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480 |
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481 | // the number of direction samples per pass is given by the number of viewpoints
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482 | int directionalSamples = desiredSamples / viewPointSamples;
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483 |
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484 | Debug << "directional samples: " << directionalSamples << endl;
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485 | for (int i = 0; i < viewPointSamples; ++ i)
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486 | {
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487 | Vector3 viewPoint = beam.mBox.GetRandomPoint();
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488 |
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489 | // perhaps the viewpoint should be shifted back a little bit so that it always lies
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490 | // inside the source object
|
---|
491 | // 'ideally' the viewpoints would be distributed on the soureObject surface, but this
|
---|
492 | // would require more complicated sampling (perhaps hierarchical rejection sampling of
|
---|
493 | // the object surface is an option here - only the mesh faces which are inside the box
|
---|
494 | // are considered as candidates)
|
---|
495 |
|
---|
496 | SampleViewpointContributions(sourceObject,
|
---|
497 | viewPoint,
|
---|
498 | beam,
|
---|
499 | directionalSamples,
|
---|
500 | stat);
|
---|
501 | }
|
---|
502 |
|
---|
503 |
|
---|
504 | // note:
|
---|
505 | // this routine would be called only if the number of desired samples is sufficiently
|
---|
506 | // large - for other rss tree cells the cpu based sampling is perhaps more efficient
|
---|
507 | // distributing the work between cpu and gpu would also allow us to place more sophisticated
|
---|
508 | // sample distributions (silhouette ones) using the cpu and the jittered once on the GPU
|
---|
509 | // in order that thios scheme is working well the gpu render buffer should run in a separate
|
---|
510 | // thread than the cpu sampler, which would not be such a big problem....
|
---|
511 |
|
---|
512 | // disable alpha test again
|
---|
513 | glDisable(GL_ALPHA_TEST);
|
---|
514 | }
|
---|
515 |
|
---|
516 |
|
---|
517 |
|
---|
518 | void QtGlRendererBuffer::SampleViewpointContributions(Intersectable *sourceObject,
|
---|
519 | const Vector3 viewPoint,
|
---|
520 | Beam &beam,
|
---|
521 | const int samples,
|
---|
522 | BeamSampleStatistics &stat)
|
---|
523 | {
|
---|
524 | // 1. setup the view port to match the desired samples
|
---|
525 | glViewport(0, 0, samples, samples);
|
---|
526 |
|
---|
527 | // 2. setup the projection matrix and view matrix to match the viewpoint + beam.mDirBox
|
---|
528 | SetupProjectionForViewPoint(viewPoint, beam, sourceObject);
|
---|
529 |
|
---|
530 |
|
---|
531 | // 3. reset z-buffer to 0 and render the source object for the beam
|
---|
532 | // with glCullFace(Enabled) and glFrontFace(GL_CW)
|
---|
533 | // save result to the front depth map
|
---|
534 | // the front depth map holds ray origins
|
---|
535 |
|
---|
536 |
|
---|
537 | // front depth buffer must be initialised to 0
|
---|
538 | float clearDepth;
|
---|
539 |
|
---|
540 | glGetFloatv(GL_DEPTH_CLEAR_VALUE, &clearDepth);
|
---|
541 | glClearDepth(0.0f);
|
---|
542 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
---|
543 |
|
---|
544 |
|
---|
545 | //glFrontFace(GL_CW);
|
---|
546 | glEnable(GL_CULL_FACE);
|
---|
547 | glCullFace(GL_FRONT);
|
---|
548 | glColorMask(0, 0, 0, 0);
|
---|
549 |
|
---|
550 |
|
---|
551 | // stencil is increased where the source object is located
|
---|
552 | glEnable(GL_STENCIL_TEST);
|
---|
553 | glStencilFunc(GL_ALWAYS, 0x1, 0x1);
|
---|
554 | glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
|
---|
555 |
|
---|
556 |
|
---|
557 | #if 0
|
---|
558 | static int glSourceObjList = -1;
|
---|
559 | if (glSourceObjList != -1)
|
---|
560 | {
|
---|
561 | glSourceObjList = glGenLists(1);
|
---|
562 | glNewList(glSourceObjList, GL_COMPILE);
|
---|
563 |
|
---|
564 | RenderIntersectable(sourceObject);
|
---|
565 |
|
---|
566 | glEndList();
|
---|
567 | }
|
---|
568 | glCallList(glSourceObjList);
|
---|
569 |
|
---|
570 | #else
|
---|
571 | RenderIntersectable(sourceObject);
|
---|
572 |
|
---|
573 | #endif
|
---|
574 |
|
---|
575 | // copy contents of the front depth buffer into depth texture
|
---|
576 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
577 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
578 |
|
---|
579 |
|
---|
580 | // reset clear function
|
---|
581 | glClearDepth(clearDepth);
|
---|
582 |
|
---|
583 |
|
---|
584 |
|
---|
585 | // 4. set up the termination depth buffer (= standard depth buffer)
|
---|
586 | // only rays which have non-zero entry in the origin buffer are valid since
|
---|
587 | // they realy start on the object surface (this is tagged by setting a
|
---|
588 | // stencil buffer bit at step 3).
|
---|
589 |
|
---|
590 | glStencilFunc(GL_EQUAL, 0x1, 0x1);
|
---|
591 | glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
|
---|
592 |
|
---|
593 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
594 | glDepthMask(1);
|
---|
595 |
|
---|
596 | glEnable(GL_DEPTH_TEST);
|
---|
597 |
|
---|
598 | glEnable(GL_CULL_FACE);
|
---|
599 | glCullFace(GL_BACK);
|
---|
600 |
|
---|
601 | // setup front depth buffer
|
---|
602 | glEnable(GL_TEXTURE_2D);
|
---|
603 |
|
---|
604 | // bind pixel shader implementing the front depth buffer functionality
|
---|
605 | cgGLBindProgram(sCgFragmentProgram);
|
---|
606 | cgGLEnableProfile(sCgFragmentProfile);
|
---|
607 |
|
---|
608 |
|
---|
609 | // 5. render all objects inside the beam
|
---|
610 | // we can use id based false color to read them back for gaining the pvs
|
---|
611 |
|
---|
612 | glColorMask(1, 1, 1, 1);
|
---|
613 |
|
---|
614 |
|
---|
615 | // if objects not stored in beam => extract objects
|
---|
616 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
617 | {
|
---|
618 | vector<KdNode *>::const_iterator it, it_end = beam.mKdNodes.end();
|
---|
619 |
|
---|
620 | Intersectable::NewMail();
|
---|
621 | for (it = beam.mKdNodes.begin(); it != it_end; ++ it)
|
---|
622 | {
|
---|
623 | mKdTree->CollectObjects(*it, beam.mObjects);
|
---|
624 | }
|
---|
625 | }
|
---|
626 |
|
---|
627 |
|
---|
628 | // (objects can be compiled to a gl list now so that subsequent rendering for
|
---|
629 | // this beam is fast - the same hold for step 3)
|
---|
630 | // Afterwards we have two depth buffers defining the ray origin and termination
|
---|
631 |
|
---|
632 |
|
---|
633 | #if 0
|
---|
634 | static int glObjList = -1;
|
---|
635 | if (glObjList != -1)
|
---|
636 | {
|
---|
637 | glObjList = glGenLists(1);
|
---|
638 | glNewList(glObjList, GL_COMPILE);
|
---|
639 |
|
---|
640 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
641 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
642 | {
|
---|
643 | // render all objects except the source object
|
---|
644 | if (*it != sourceObject)
|
---|
645 | RenderIntersectable(*it);
|
---|
646 | }
|
---|
647 |
|
---|
648 | glEndList();
|
---|
649 | }
|
---|
650 |
|
---|
651 | glCallList(glObjList);
|
---|
652 | #else
|
---|
653 | ObjectContainer::const_iterator it, it_end = beam.mObjects.end();
|
---|
654 | for (it = beam.mObjects.begin(); it != it_end; ++ it)
|
---|
655 | {
|
---|
656 | // render all objects except the source object
|
---|
657 | if (*it != sourceObject)
|
---|
658 | RenderIntersectable(*it);
|
---|
659 | }
|
---|
660 | #endif
|
---|
661 |
|
---|
662 |
|
---|
663 |
|
---|
664 | // 6. Use occlusion queries for all viewcell meshes associated with the beam ->
|
---|
665 | // a fragment passes if the corresponding stencil fragment is set and its depth is
|
---|
666 | // between origin and termination buffer
|
---|
667 |
|
---|
668 | // create new queries if necessary
|
---|
669 | OcclusionQuery::GenQueries(mOcclusionQueries, (int)beam.mViewCells.size());
|
---|
670 |
|
---|
671 | // check whether any backfacing polygon would pass the depth test?
|
---|
672 | // matt: should check both back /front facing because of dual depth buffer
|
---|
673 | // and danger of cutting the near plane with front facing polys.
|
---|
674 |
|
---|
675 | glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
---|
676 | glDepthMask(GL_FALSE);
|
---|
677 | glDisable(GL_CULL_FACE);
|
---|
678 |
|
---|
679 |
|
---|
680 | ViewCellContainer::const_iterator vit, vit_end = beam.mViewCells.end();
|
---|
681 |
|
---|
682 | int queryIdx = 0;
|
---|
683 |
|
---|
684 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
685 | {
|
---|
686 | mOcclusionQueries[queryIdx ++]->BeginQuery();
|
---|
687 |
|
---|
688 | RenderIntersectable(*vit);
|
---|
689 |
|
---|
690 | mOcclusionQueries[queryIdx]->EndQuery();
|
---|
691 |
|
---|
692 | ++ queryIdx;
|
---|
693 | }
|
---|
694 |
|
---|
695 |
|
---|
696 |
|
---|
697 | // at this point, if possible, go and do some other computation
|
---|
698 |
|
---|
699 |
|
---|
700 |
|
---|
701 | // 7. The number of visible pixels is the number of sample rays which see the source
|
---|
702 | // object from the corresponding viewcell -> remember these values for later update
|
---|
703 | // of the viewcell pvs - or update immediately?
|
---|
704 |
|
---|
705 | queryIdx = 0;
|
---|
706 |
|
---|
707 | for (vit = beam.mViewCells.begin(); vit != vit_end; ++ vit)
|
---|
708 | {
|
---|
709 | // fetch queries
|
---|
710 | unsigned int pixelCount = mOcclusionQueries[queryIdx ++]->GetQueryResult();
|
---|
711 |
|
---|
712 | if (pixelCount)
|
---|
713 | Debug << "view cell " << (*vit)->GetId() << " visible pixels: " << pixelCount << endl;
|
---|
714 | }
|
---|
715 |
|
---|
716 |
|
---|
717 | // 8. Copmpute rendering statistics
|
---|
718 | // In general it is not neccessary to remember to extract all the rays cast. I hope it
|
---|
719 | // would be sufficient to gain only the intergral statistics about the new contributions
|
---|
720 | // and so the rss tree would actually store no new rays (only the initial ones)
|
---|
721 | // the subdivision of the tree would only be driven by the statistics (the glrender could
|
---|
722 | // evaluate the contribution entropy for example)
|
---|
723 | // However might be an option to extract/store only those the rays which made a contribution
|
---|
724 | // (new viewcell has been discovered) or relative contribution greater than a threshold ...
|
---|
725 |
|
---|
726 | ObjectContainer pvsObj;
|
---|
727 | stat.pvsSize = ComputePvs(beam.mObjects, pvsObj);
|
---|
728 |
|
---|
729 | // to gain ray source and termination
|
---|
730 | // copy contents of ray termination buffer into depth texture
|
---|
731 | // and compare with ray source buffer
|
---|
732 | #if 0
|
---|
733 | VssRayContainer rays;
|
---|
734 |
|
---|
735 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
736 | glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, depthMapSize, depthMapSize);
|
---|
737 |
|
---|
738 | ComputeRays(Intersectable *sourceObj, rays);
|
---|
739 |
|
---|
740 | #endif
|
---|
741 |
|
---|
742 |
|
---|
743 |
|
---|
744 | //-- cleanup
|
---|
745 |
|
---|
746 |
|
---|
747 | // reset gl state
|
---|
748 | glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
---|
749 | glDepthMask(GL_TRUE);
|
---|
750 | glEnable(GL_CULL_FACE);
|
---|
751 | glDisable(GL_STENCIL_TEST);
|
---|
752 | cgGLDisableProfile(sCgFragmentProfile);
|
---|
753 | glDisable(GL_TEXTURE_2D);
|
---|
754 |
|
---|
755 | // remove objects from beam
|
---|
756 | if (beam.mFlags & !Beam::STORE_OBJECTS)
|
---|
757 | beam.mObjects.clear();
|
---|
758 | }
|
---|
759 |
|
---|
760 |
|
---|
761 | void QtGlRendererBuffer::SetupProjectionForViewPoint(const Vector3 &viewPoint,
|
---|
762 | const Beam &beam,
|
---|
763 | Intersectable *sourceObject)
|
---|
764 | {
|
---|
765 | float left, right, bottom, top, znear, zfar;
|
---|
766 |
|
---|
767 | beam.ComputePerspectiveFrustum(left, right, bottom, top, znear, zfar,
|
---|
768 | mSceneGraph->GetBox());
|
---|
769 |
|
---|
770 | //Debug << left << " " << right << " " << bottom << " " << top << " " << znear << " " << zfar << endl;
|
---|
771 | glMatrixMode(GL_PROJECTION);
|
---|
772 | glLoadIdentity();
|
---|
773 | glFrustum(left, right, bottom, top, znear, zfar);
|
---|
774 | //glFrustum(-1, 1, -1, 1, 1, 20000);
|
---|
775 |
|
---|
776 | const Vector3 center = viewPoint + beam.GetMainDirection() * (zfar - znear) * 0.3f;
|
---|
777 | const Vector3 up =
|
---|
778 | Normalize(CrossProd(beam.mPlanes[0].mNormal, beam.mPlanes[4].mNormal));
|
---|
779 |
|
---|
780 | #ifdef _DEBUG
|
---|
781 | Debug << "view point: " << viewPoint << endl;
|
---|
782 | Debug << "eye: " << center << endl;
|
---|
783 | Debug << "up: " << up << endl;
|
---|
784 | #endif
|
---|
785 |
|
---|
786 | glMatrixMode(GL_MODELVIEW);
|
---|
787 | glLoadIdentity();
|
---|
788 | gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z,
|
---|
789 | center.x, center.y, center.z,
|
---|
790 | up.x, up.y, up.z);
|
---|
791 | }
|
---|
792 |
|
---|
793 |
|
---|
794 | void QtGlRendererBuffer::InitGL()
|
---|
795 | {
|
---|
796 | makeCurrent();
|
---|
797 | GlRenderer::InitGL();
|
---|
798 |
|
---|
799 | #if 1
|
---|
800 | // initialise dual depth buffer textures
|
---|
801 | glGenTextures(1, &frontDepthMap);
|
---|
802 | glBindTexture(GL_TEXTURE_2D, frontDepthMap);
|
---|
803 |
|
---|
804 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
805 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
806 |
|
---|
807 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
808 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
809 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
810 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
811 |
|
---|
812 | glGenTextures(1, &backDepthMap);
|
---|
813 | glBindTexture(GL_TEXTURE_2D, backDepthMap);
|
---|
814 |
|
---|
815 | glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, depthMapSize,
|
---|
816 | depthMapSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
|
---|
817 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
---|
818 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
---|
819 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
---|
820 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
---|
821 |
|
---|
822 | // cg initialization
|
---|
823 | cgSetErrorCallback(handleCgError);
|
---|
824 | sCgContext = cgCreateContext();
|
---|
825 |
|
---|
826 | if (cgGLIsProfileSupported(CG_PROFILE_ARBFP1))
|
---|
827 | sCgFragmentProfile = CG_PROFILE_ARBFP1;
|
---|
828 | else
|
---|
829 | {
|
---|
830 | // try FP30
|
---|
831 | if (cgGLIsProfileSupported(CG_PROFILE_FP30))
|
---|
832 | sCgFragmentProfile = CG_PROFILE_FP30;
|
---|
833 | else
|
---|
834 | {
|
---|
835 | Debug << "Neither arbfp1 or fp30 fragment profiles supported on this system" << endl;
|
---|
836 | exit(1);
|
---|
837 | }
|
---|
838 | }
|
---|
839 |
|
---|
840 |
|
---|
841 | sCgFragmentProgram = cgCreateProgramFromFile(sCgContext,
|
---|
842 | CG_SOURCE, "../src/dual_depth.cg",
|
---|
843 | sCgFragmentProfile,
|
---|
844 | NULL,
|
---|
845 | NULL);
|
---|
846 |
|
---|
847 | if (!cgIsProgramCompiled(sCgFragmentProgram))
|
---|
848 | cgCompileProgram(sCgFragmentProgram);
|
---|
849 |
|
---|
850 | cgGLLoadProgram(sCgFragmentProgram);
|
---|
851 | cgGLBindProgram(sCgFragmentProgram);
|
---|
852 |
|
---|
853 | Debug << "---- PROGRAM BEGIN ----\n" <<
|
---|
854 | cgGetProgramString(sCgFragmentProgram, CG_COMPILED_PROGRAM) << "---- PROGRAM END ----\n";
|
---|
855 |
|
---|
856 | #endif
|
---|
857 | doneCurrent();
|
---|
858 | }
|
---|
859 |
|
---|
860 |
|
---|
861 | void QtGlRendererBuffer::ComputeRays(Intersectable *sourceObj, VssRayContainer &rays)
|
---|
862 | {
|
---|
863 | for (int i = 0; i < depthMapSize * depthMapSize; ++ i)
|
---|
864 | {
|
---|
865 | //todo glGetTexImage()
|
---|
866 | }
|
---|
867 | }
|
---|
868 |
|
---|
869 |
|
---|
870 |
|
---|
871 | int QtGlRendererBuffer::ComputePvs(ObjectContainer &objects,
|
---|
872 | ObjectContainer &pvs) const
|
---|
873 | {
|
---|
874 | int pvsSize = 0;
|
---|
875 | QImage image = toImage();
|
---|
876 | Intersectable::NewMail();
|
---|
877 |
|
---|
878 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
879 |
|
---|
880 | MeshInstance dummy(NULL);
|
---|
881 |
|
---|
882 | Intersectable *obj = NULL;
|
---|
883 |
|
---|
884 | for (int x = 0; x < image.width(); ++ x)
|
---|
885 | {
|
---|
886 | for (int y = 0; y < image.height(); ++ y)
|
---|
887 | {
|
---|
888 | QRgb pix = image.pixel(x, y);
|
---|
889 | const int id = GetId(qRed(pix), qGreen(pix), qBlue(pix));
|
---|
890 |
|
---|
891 | dummy.SetId(id);
|
---|
892 |
|
---|
893 | ObjectContainer::iterator oit =
|
---|
894 | lower_bound(objects.begin(), objects.end(), &dummy, ilt);
|
---|
895 |
|
---|
896 |
|
---|
897 | if (//(oit != oit.end()) &&
|
---|
898 | ((*oit)->GetId() == id) &&
|
---|
899 | !obj->Mailed())
|
---|
900 | {
|
---|
901 | obj = *oit;
|
---|
902 | obj->Mail();
|
---|
903 | ++ pvsSize;
|
---|
904 | pvs.push_back(obj);
|
---|
905 | }
|
---|
906 | }
|
---|
907 | }
|
---|
908 |
|
---|
909 | return pvsSize;
|
---|
910 | }
|
---|
911 |
|
---|
912 |
|
---|
913 |
|
---|
914 | void
|
---|
915 | QtGlRendererWidget::SetupCameraProjection(const int w, const int h, const float angle)
|
---|
916 | {
|
---|
917 | if (!mTopView) {
|
---|
918 | int ww = w*CAMERA_VIEW_WIDTH;
|
---|
919 | int hh = h;
|
---|
920 | glViewport(0, 0, ww, hh);
|
---|
921 | glMatrixMode(GL_PROJECTION);
|
---|
922 | glLoadIdentity();
|
---|
923 | gluPerspective(angle, ww/(float)hh, 0.1, 2.0*Magnitude(mSceneGraph->GetBox().Diagonal()));
|
---|
924 | glMatrixMode(GL_MODELVIEW);
|
---|
925 | } else {
|
---|
926 | int ww = w*CAMERA_VIEW_WIDTH;
|
---|
927 | int hh = h;
|
---|
928 | glViewport(0, 0, ww, hh);
|
---|
929 | glMatrixMode(GL_PROJECTION);
|
---|
930 | glLoadIdentity();
|
---|
931 | gluPerspective(50.0, ww/(float)hh, 0.1, 20.0*Magnitude(mSceneGraph->GetBox().Diagonal()));
|
---|
932 | glMatrixMode(GL_MODELVIEW);
|
---|
933 | }
|
---|
934 | }
|
---|
935 |
|
---|
936 | void
|
---|
937 | QtGlRendererWidget::SetupManipulatorProjection(const int w, const int h, const float angle)
|
---|
938 | {
|
---|
939 | int ww = w*(1.0f - CAMERA_VIEW_WIDTH);
|
---|
940 | int hh = h;
|
---|
941 | glViewport(w - ww, 0, ww, hh);
|
---|
942 | glMatrixMode(GL_PROJECTION);
|
---|
943 | glLoadIdentity();
|
---|
944 | gluPerspective(angle, ww/(float)hh, 0.1f, 1000.0f);
|
---|
945 | glMatrixMode(GL_MODELVIEW);
|
---|
946 | }
|
---|
947 |
|
---|
948 | void
|
---|
949 | QtGlRendererWidget::RenderPvs()
|
---|
950 | {
|
---|
951 |
|
---|
952 |
|
---|
953 | ViewCell *viewcell = NULL;
|
---|
954 |
|
---|
955 | PrVs prvs;
|
---|
956 |
|
---|
957 | if (!mUseFilter) {
|
---|
958 | viewcell = mViewCellsManager->GetViewCell(mViewPoint, true);
|
---|
959 | } else {
|
---|
960 | // mViewCellsManager->SetMaxFilterSize(1);
|
---|
961 | mViewCellsManager->GetPrVS(mViewPoint, prvs, mViewCellsManager->GetFilterWidth());
|
---|
962 | viewcell = prvs.mViewCell;
|
---|
963 | }
|
---|
964 |
|
---|
965 | if (viewcell) {
|
---|
966 | // copy the pvs so that it can be filtered...
|
---|
967 | ObjectPvs pvs = viewcell->GetPvs();
|
---|
968 |
|
---|
969 | if (mUseSpatialFilter) {
|
---|
970 | mViewCellsManager->ApplySpatialFilter(mKdTree,
|
---|
971 | mSpatialFilterSize*
|
---|
972 | Magnitude(mViewCellsManager->GetViewSpaceBox().Size()),
|
---|
973 | pvs);
|
---|
974 | }
|
---|
975 |
|
---|
976 |
|
---|
977 | // read back the texture
|
---|
978 | ObjectPvsMap::const_iterator it = pvs.mEntries.begin();
|
---|
979 |
|
---|
980 | mPvsSize = pvs.mEntries.size();
|
---|
981 |
|
---|
982 | for (; it != pvs.mEntries.end(); ++ it) {
|
---|
983 | Intersectable *object = (*it).first;
|
---|
984 | float visibility = log10((*it).second.mSumPdf + 1)/5.0f;
|
---|
985 | glColor3f(visibility, 0.0f, 0.0f);
|
---|
986 | mUseForcedColors = true;
|
---|
987 | RenderIntersectable(object);
|
---|
988 | mUseForcedColors = false;
|
---|
989 | }
|
---|
990 |
|
---|
991 | if (mRenderFilter) {
|
---|
992 | mWireFrame = true;
|
---|
993 | RenderIntersectable(viewcell);
|
---|
994 | mWireFrame = false;
|
---|
995 | }
|
---|
996 |
|
---|
997 | if (mUseFilter)
|
---|
998 | mViewCellsManager->DeleteLocalMergeTree(viewcell);
|
---|
999 | } else {
|
---|
1000 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
1001 | for (; oi != mObjects.end(); oi++)
|
---|
1002 | RenderIntersectable(*oi);
|
---|
1003 | }
|
---|
1004 | }
|
---|
1005 |
|
---|
1006 | float
|
---|
1007 | QtGlRendererWidget::RenderErrors()
|
---|
1008 | {
|
---|
1009 | float pErrorPixels = -1.0f;
|
---|
1010 |
|
---|
1011 | glReadBuffer(GL_BACK);
|
---|
1012 |
|
---|
1013 | mUseFalseColors = true;
|
---|
1014 |
|
---|
1015 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1016 |
|
---|
1017 | double eq[4];
|
---|
1018 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
1019 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
1020 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
1021 | eq[3] = mSceneCutPlane.mD;
|
---|
1022 |
|
---|
1023 | if (mCutScene) {
|
---|
1024 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
1025 | glEnable(GL_CLIP_PLANE0);
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 | if (mDetectEmptyViewSpace)
|
---|
1029 | glEnable( GL_CULL_FACE );
|
---|
1030 | else
|
---|
1031 | glDisable( GL_CULL_FACE );
|
---|
1032 |
|
---|
1033 | ObjectContainer::const_iterator oi = mObjects.begin();
|
---|
1034 | for (; oi != mObjects.end(); oi++)
|
---|
1035 | RenderIntersectable(*oi);
|
---|
1036 |
|
---|
1037 | ViewCell *viewcell = NULL;
|
---|
1038 |
|
---|
1039 | QImage im1, im2;
|
---|
1040 | QImage diff;
|
---|
1041 |
|
---|
1042 | if (viewcell) {
|
---|
1043 | // read back the texture
|
---|
1044 | im1 = grabFrameBuffer(true);
|
---|
1045 |
|
---|
1046 | RenderPvs();
|
---|
1047 |
|
---|
1048 | // read back the texture
|
---|
1049 | im2 = grabFrameBuffer(true);
|
---|
1050 |
|
---|
1051 | diff = im1;
|
---|
1052 | int x, y;
|
---|
1053 | int errorPixels = 0;
|
---|
1054 |
|
---|
1055 | for (y = 0; y < im1.height(); y++)
|
---|
1056 | for (x = 0; x < im1.width(); x++)
|
---|
1057 | if (im1.pixel(x, y) == im2.pixel(x, y))
|
---|
1058 | diff.setPixel(x, y, qRgba(0,0,0,0));
|
---|
1059 | else {
|
---|
1060 | diff.setPixel(x, y, qRgba(255,128,128,255));
|
---|
1061 | errorPixels++;
|
---|
1062 | }
|
---|
1063 | pErrorPixels = ((float)errorPixels)/(im1.height()*im1.width());
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | // now render the pvs again
|
---|
1067 | SetupCamera();
|
---|
1068 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1069 | mUseFalseColors = false;
|
---|
1070 |
|
---|
1071 | oi = mObjects.begin();
|
---|
1072 | for (; oi != mObjects.end(); oi++)
|
---|
1073 | RenderIntersectable(*oi);
|
---|
1074 |
|
---|
1075 | // now render im1
|
---|
1076 | if (viewcell) {
|
---|
1077 | if (0 && mTopView) {
|
---|
1078 | mWireFrame = true;
|
---|
1079 | RenderIntersectable(viewcell);
|
---|
1080 | mWireFrame = false;
|
---|
1081 | }
|
---|
1082 |
|
---|
1083 | // init ortographic projection
|
---|
1084 | glMatrixMode(GL_PROJECTION);
|
---|
1085 | glPushMatrix();
|
---|
1086 |
|
---|
1087 | glLoadIdentity();
|
---|
1088 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
1089 |
|
---|
1090 | glMatrixMode(GL_MODELVIEW);
|
---|
1091 | glLoadIdentity();
|
---|
1092 |
|
---|
1093 | bindTexture(diff);
|
---|
1094 |
|
---|
1095 | glPushAttrib(GL_ENABLE_BIT);
|
---|
1096 | glEnable( GL_ALPHA_TEST );
|
---|
1097 | glDisable( GL_CULL_FACE );
|
---|
1098 | glAlphaFunc( GL_GREATER, 0.5 );
|
---|
1099 |
|
---|
1100 | glEnable( GL_TEXTURE_2D );
|
---|
1101 | glBegin(GL_QUADS);
|
---|
1102 |
|
---|
1103 | glTexCoord2f(0,0);
|
---|
1104 | glVertex3f(0,0,0);
|
---|
1105 |
|
---|
1106 | glTexCoord2f(1,0);
|
---|
1107 | glVertex3f( 1, 0, 0);
|
---|
1108 |
|
---|
1109 | glTexCoord2f(1,1);
|
---|
1110 | glVertex3f( 1, 1, 0);
|
---|
1111 |
|
---|
1112 | glTexCoord2f(0,1);
|
---|
1113 | glVertex3f(0, 1, 0);
|
---|
1114 | glEnd();
|
---|
1115 |
|
---|
1116 | glPopAttrib();
|
---|
1117 |
|
---|
1118 | // restore the projection matrix
|
---|
1119 | glMatrixMode(GL_PROJECTION);
|
---|
1120 | glPopMatrix();
|
---|
1121 | glMatrixMode(GL_MODELVIEW);
|
---|
1122 | }
|
---|
1123 |
|
---|
1124 | glDisable(GL_CLIP_PLANE0);
|
---|
1125 |
|
---|
1126 | mRenderError = pErrorPixels;
|
---|
1127 | return pErrorPixels;
|
---|
1128 | }
|
---|
1129 |
|
---|
1130 |
|
---|
1131 | void
|
---|
1132 | QtGlRendererWidget::mousePressEvent(QMouseEvent *e)
|
---|
1133 | {
|
---|
1134 | int x = e->pos().x();
|
---|
1135 | int y = e->pos().y();
|
---|
1136 |
|
---|
1137 | mousePoint.x = x;
|
---|
1138 | mousePoint.y = y;
|
---|
1139 |
|
---|
1140 | }
|
---|
1141 |
|
---|
1142 | void
|
---|
1143 | QtGlRendererWidget::mouseMoveEvent(QMouseEvent *e)
|
---|
1144 | {
|
---|
1145 | float MOVE_SENSITIVITY = Magnitude(mSceneGraph->GetBox().Diagonal())*1e-3;
|
---|
1146 | float TURN_SENSITIVITY=0.1f;
|
---|
1147 | float TILT_SENSITIVITY=32.0 ;
|
---|
1148 | float TURN_ANGLE= M_PI/36.0 ;
|
---|
1149 |
|
---|
1150 | int x = e->pos().x();
|
---|
1151 | int y = e->pos().y();
|
---|
1152 |
|
---|
1153 | int diffx = -(mousePoint.x - x);
|
---|
1154 | int diffy = -(mousePoint.y - y);
|
---|
1155 |
|
---|
1156 | if (x < width()*CAMERA_VIEW_WIDTH) {
|
---|
1157 | if (e->modifiers() & Qt::ControlModifier) {
|
---|
1158 | mViewPoint.y += (y-mousePoint.y)*MOVE_SENSITIVITY/2.0;
|
---|
1159 | mViewPoint.x += (x-mousePoint.x)*MOVE_SENSITIVITY/2.0;
|
---|
1160 | } else {
|
---|
1161 | mViewPoint += mViewDirection*((mousePoint.y - y)*MOVE_SENSITIVITY);
|
---|
1162 | float adiff = TURN_ANGLE*(x - mousePoint.x)*-TURN_SENSITIVITY;
|
---|
1163 | float angle = atan2(mViewDirection.x, mViewDirection.z);
|
---|
1164 | mViewDirection.x = sin(angle+adiff);
|
---|
1165 | mViewDirection.z = cos(angle+adiff);
|
---|
1166 | }
|
---|
1167 | } else {
|
---|
1168 | float W = width()*(1.0f-CAMERA_VIEW_WIDTH);
|
---|
1169 | float H = height();
|
---|
1170 | int xx = x - width()*CAMERA_VIEW_WIDTH;
|
---|
1171 | int mxx = mousePoint.x - width()*CAMERA_VIEW_WIDTH;
|
---|
1172 | if (e->modifiers() & Qt::ControlModifier) {
|
---|
1173 | mManipulatorScale = mManipulatorScale * (1.0 + (((float) (-diffy)) / H));
|
---|
1174 | } else {
|
---|
1175 | float quat[4];
|
---|
1176 | trackball(quat,
|
---|
1177 | (2.0 * mxx - W) / W,
|
---|
1178 | (H - 2.0 * mousePoint.y) / H,
|
---|
1179 | (2.0 * xx - W) / W,
|
---|
1180 | (H - 2.0 * y) / H
|
---|
1181 | );
|
---|
1182 | add_quats(quat, mManipulatorLastQuat, mManipulatorLastQuat);
|
---|
1183 | }
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 | mousePoint.x = x;
|
---|
1187 | mousePoint.y = y;
|
---|
1188 |
|
---|
1189 | updateGL();
|
---|
1190 | }
|
---|
1191 |
|
---|
1192 | void
|
---|
1193 | QtGlRendererWidget::mouseReleaseEvent(QMouseEvent *)
|
---|
1194 | {
|
---|
1195 |
|
---|
1196 |
|
---|
1197 | }
|
---|
1198 |
|
---|
1199 | void
|
---|
1200 | QtGlRendererWidget::resizeGL(int w, int h)
|
---|
1201 | {
|
---|
1202 | SetupCameraProjection(w, h);
|
---|
1203 | updateGL();
|
---|
1204 | }
|
---|
1205 |
|
---|
1206 | void
|
---|
1207 | QtGlRendererWidget::paintGL()
|
---|
1208 | {
|
---|
1209 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1210 |
|
---|
1211 | if (1) {
|
---|
1212 | SetupCameraProjection(width(), height());
|
---|
1213 | SetupCamera();
|
---|
1214 |
|
---|
1215 | if (mRenderErrors) {
|
---|
1216 | RenderErrors();
|
---|
1217 | } else {
|
---|
1218 | RenderPvs();
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | }
|
---|
1222 |
|
---|
1223 | mFrame++;
|
---|
1224 |
|
---|
1225 | if (1) {
|
---|
1226 | // render into the right side of the window buffer
|
---|
1227 | SetupManipulatorProjection(width(), height());
|
---|
1228 | SetupManipulator();
|
---|
1229 |
|
---|
1230 |
|
---|
1231 | if (mRenderViewCells)
|
---|
1232 | RenderViewCells();
|
---|
1233 |
|
---|
1234 | RenderPvs();
|
---|
1235 |
|
---|
1236 | if (0) {
|
---|
1237 | mWireFrame = true;
|
---|
1238 | RenderScene();
|
---|
1239 | mWireFrame = false;
|
---|
1240 | }
|
---|
1241 |
|
---|
1242 | if (mShowRays) {
|
---|
1243 | RssPreprocessor *p = (RssPreprocessor *)mViewCellsManager->GetPreprocessor();
|
---|
1244 | VssRayContainer rays;
|
---|
1245 | p->mRssTree->CollectRays(rays, 10000);
|
---|
1246 | RenderRays(rays);
|
---|
1247 | }
|
---|
1248 |
|
---|
1249 | if (mShowRenderCost)
|
---|
1250 | RenderRenderCost();
|
---|
1251 |
|
---|
1252 | RenderInfo();
|
---|
1253 | }
|
---|
1254 | mFrame++;
|
---|
1255 |
|
---|
1256 | }
|
---|
1257 |
|
---|
1258 |
|
---|
1259 | void
|
---|
1260 | QtGlRendererWidget::SetupCamera()
|
---|
1261 | {
|
---|
1262 | if (!mTopView)
|
---|
1263 | GlRenderer::SetupCamera();
|
---|
1264 | else {
|
---|
1265 | if (0) {
|
---|
1266 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*0.05;
|
---|
1267 | Vector3 pos = mViewPoint - dist*Vector3(mViewDirection.x,
|
---|
1268 | -1,
|
---|
1269 | mViewDirection.y);
|
---|
1270 |
|
---|
1271 | Vector3 target = mViewPoint + dist*mViewDirection;
|
---|
1272 | Vector3 up(0,1,0);
|
---|
1273 |
|
---|
1274 | glLoadIdentity();
|
---|
1275 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
1276 | target.x, target.y, target.z,
|
---|
1277 | up.x, up.y, up.z);
|
---|
1278 | } else {
|
---|
1279 | float dist = Magnitude(mSceneGraph->GetBox().Diagonal())*mTopDistance;
|
---|
1280 | Vector3 pos = mViewPoint + dist*Vector3(0,
|
---|
1281 | 1,
|
---|
1282 | 0);
|
---|
1283 |
|
---|
1284 | Vector3 target = mViewPoint;
|
---|
1285 | Vector3 up(mViewDirection.x, 0, mViewDirection.z);
|
---|
1286 |
|
---|
1287 | glLoadIdentity();
|
---|
1288 | gluLookAt(pos.x, pos.y, pos.z,
|
---|
1289 | target.x, target.y, target.z,
|
---|
1290 | up.x, up.y, up.z);
|
---|
1291 |
|
---|
1292 | }
|
---|
1293 | }
|
---|
1294 |
|
---|
1295 | }
|
---|
1296 |
|
---|
1297 | void
|
---|
1298 | QtGlRendererWidget::SetupManipulator()
|
---|
1299 | {
|
---|
1300 | float m[4][4];
|
---|
1301 |
|
---|
1302 | glLoadIdentity();
|
---|
1303 | gluLookAt(0.0, 0.0, 30.0, /* eye is at (0,0,30) */
|
---|
1304 | 0.0, 0.0, 0.0, /* center is at (0,0,0) */
|
---|
1305 | 0.0, 1.0, 0.); /* up is in positive Y direction */
|
---|
1306 |
|
---|
1307 | build_rotmatrix(m, mManipulatorLastQuat);
|
---|
1308 | glMultMatrixf(&m[0][0]);
|
---|
1309 |
|
---|
1310 | float scale = mManipulatorScale*20.0f/Magnitude(mSceneGraph->GetBox().Diagonal());
|
---|
1311 | glScalef(scale, scale, scale);
|
---|
1312 |
|
---|
1313 | Vector3 t = -mSceneGraph->GetBox().Center();
|
---|
1314 | glTranslatef(t.x, t.y, t.z);
|
---|
1315 |
|
---|
1316 | }
|
---|
1317 |
|
---|
1318 | void
|
---|
1319 | QtGlRendererWidget::keyPressEvent ( QKeyEvent * e )
|
---|
1320 | {
|
---|
1321 | switch (e->key()) {
|
---|
1322 | case Qt::Key_T:
|
---|
1323 | mTopView = !mTopView;
|
---|
1324 | SetupCameraProjection(width(), height());
|
---|
1325 | updateGL();
|
---|
1326 | break;
|
---|
1327 | case Qt::Key_V:
|
---|
1328 | mRenderViewCells = !mRenderViewCells;
|
---|
1329 | updateGL();
|
---|
1330 | break;
|
---|
1331 | case Qt::Key_P:
|
---|
1332 | // set random viewpoint
|
---|
1333 | mViewCellsManager->GetViewPoint(mViewPoint);
|
---|
1334 | updateGL();
|
---|
1335 | break;
|
---|
1336 |
|
---|
1337 | default:
|
---|
1338 | e->ignore();
|
---|
1339 | break;
|
---|
1340 | }
|
---|
1341 | }
|
---|
1342 |
|
---|
1343 |
|
---|
1344 |
|
---|
1345 | QtGlRendererWidget::QtGlRendererWidget(
|
---|
1346 | SceneGraph *sceneGraph,
|
---|
1347 | ViewCellsManager *viewcells,
|
---|
1348 | KdTree *tree,
|
---|
1349 | QWidget * parent,
|
---|
1350 | const QGLWidget * shareWidget,
|
---|
1351 | Qt::WFlags f
|
---|
1352 | )
|
---|
1353 | :
|
---|
1354 | GlRendererWidget(sceneGraph, viewcells, tree), QGLWidget(parent, shareWidget, f)
|
---|
1355 | {
|
---|
1356 | mTopView = false;
|
---|
1357 | mRenderViewCells = false;
|
---|
1358 | mTopDistance = 1.0f;
|
---|
1359 | mCutViewCells = false;
|
---|
1360 | mCutScene = false;
|
---|
1361 | mRenderErrors = false;
|
---|
1362 | mRenderFilter = true;
|
---|
1363 | mManipulatorScale = 1.0f;
|
---|
1364 | trackball(mManipulatorLastQuat, 0.0f, 0.0f, 0.0f, 0.0f);
|
---|
1365 | bool tmp;
|
---|
1366 |
|
---|
1367 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilityFilter", tmp );
|
---|
1368 | mUseFilter = tmp;
|
---|
1369 |
|
---|
1370 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilitySpatialFilter",
|
---|
1371 | tmp );
|
---|
1372 |
|
---|
1373 | mUseSpatialFilter = tmp;
|
---|
1374 |
|
---|
1375 | mShowRenderCost = false;
|
---|
1376 | mShowPvsSizes = false;
|
---|
1377 | mSpatialFilterSize = 0.01;
|
---|
1378 | mPvsSize = 0;
|
---|
1379 | mRenderError = 0.0f;
|
---|
1380 | mShowRays = false;
|
---|
1381 |
|
---|
1382 | mControlWidget = new QtRendererControlWidget(NULL);
|
---|
1383 |
|
---|
1384 | connect(mControlWidget, SIGNAL(SetViewCellGranularity(int)), this, SLOT(SetViewCellGranularity(int)));
|
---|
1385 | connect(mControlWidget, SIGNAL(SetSceneCut(int)), this, SLOT(SetSceneCut(int)));
|
---|
1386 | connect(mControlWidget, SIGNAL(SetTopDistance(int)), this, SLOT(SetTopDistance(int)));
|
---|
1387 |
|
---|
1388 | connect(mControlWidget, SIGNAL(SetVisibilityFilterSize(int)), this, SLOT(SetVisibilityFilterSize(int)));
|
---|
1389 | connect(mControlWidget, SIGNAL(SetSpatialFilterSize(int)), this, SLOT(SetSpatialFilterSize(int)));
|
---|
1390 |
|
---|
1391 | connect(mControlWidget, SIGNAL(SetShowViewCells(bool)), this, SLOT(SetShowViewCells(bool)));
|
---|
1392 | connect(mControlWidget, SIGNAL(SetShowRenderCost(bool)), this, SLOT(SetShowRenderCost(bool)));
|
---|
1393 | connect(mControlWidget, SIGNAL(SetShowPvsSizes(bool)), this, SLOT(SetShowPvsSizes(bool)));
|
---|
1394 | connect(mControlWidget, SIGNAL(SetTopView(bool)), this, SLOT(SetTopView(bool)));
|
---|
1395 | connect(mControlWidget, SIGNAL(SetCutViewCells(bool)), this, SLOT(SetCutViewCells(bool)));
|
---|
1396 | connect(mControlWidget, SIGNAL(SetCutScene(bool)), this, SLOT(SetCutScene(bool)));
|
---|
1397 | connect(mControlWidget, SIGNAL(SetRenderErrors(bool)), this, SLOT(SetRenderErrors(bool)));
|
---|
1398 | connect(mControlWidget, SIGNAL(SetRenderFilter(bool)), this, SLOT(SetRenderFilter(bool)));
|
---|
1399 | connect(mControlWidget, SIGNAL(SetUseFilter(bool)), this, SLOT(SetUseFilter(bool)));
|
---|
1400 | connect(mControlWidget, SIGNAL(SetUseSpatialFilter(bool)),
|
---|
1401 | this, SLOT(SetUseSpatialFilter(bool)));
|
---|
1402 |
|
---|
1403 | connect(mControlWidget,
|
---|
1404 | SIGNAL(SetShowRays(bool)),
|
---|
1405 | this,
|
---|
1406 | SLOT(SetShowRays(bool)));
|
---|
1407 |
|
---|
1408 | resize(1000, 500);
|
---|
1409 | mControlWidget->show();
|
---|
1410 | }
|
---|
1411 |
|
---|
1412 | void
|
---|
1413 | QtGlRendererWidget::RenderRenderCost()
|
---|
1414 | {
|
---|
1415 | static vector<float> costFunction;
|
---|
1416 | static float maxCost = -1;
|
---|
1417 | if (costFunction.size()==0) {
|
---|
1418 | ViewCellsTree *tree = mViewCellsManager->GetViewCellsTree();
|
---|
1419 | if (tree) {
|
---|
1420 | tree->GetCostFunction(costFunction);
|
---|
1421 | maxCost = -1;
|
---|
1422 | for (int i=0; i < costFunction.size(); i++) {
|
---|
1423 | // cout<<i<<":"<<costFunction[i]<<" ";
|
---|
1424 | // update cost function to an absolute value based on the total geometry count
|
---|
1425 | costFunction[i]*=mSceneGraph->GetRoot()->mGeometry.size();
|
---|
1426 | if (costFunction[i] > maxCost)
|
---|
1427 | maxCost = costFunction[i];
|
---|
1428 | }
|
---|
1429 | }
|
---|
1430 | }
|
---|
1431 |
|
---|
1432 |
|
---|
1433 | int currentPos = (int)mViewCellsManager->GetViewCells().size();
|
---|
1434 | float currentCost= -1;
|
---|
1435 |
|
---|
1436 | if (currentPos < costFunction.size())
|
---|
1437 | currentCost = costFunction[currentPos];
|
---|
1438 | #if 1
|
---|
1439 | cout<<"costFunction.size()="<<costFunction.size()<<endl;
|
---|
1440 | cout<<"CP="<<currentPos<<endl;
|
---|
1441 | cout<<"MC="<<maxCost<<endl;
|
---|
1442 | cout<<"CC="<<currentCost<<endl;
|
---|
1443 | #endif
|
---|
1444 | if (costFunction.size()) {
|
---|
1445 | float scaley = 1.0f/log10(maxCost);
|
---|
1446 | float scalex = 1.0f/(float)costFunction.size();
|
---|
1447 |
|
---|
1448 | glDisable(GL_DEPTH_TEST);
|
---|
1449 | // init ortographic projection
|
---|
1450 | glMatrixMode(GL_PROJECTION);
|
---|
1451 |
|
---|
1452 | glPushMatrix();
|
---|
1453 |
|
---|
1454 | glLoadIdentity();
|
---|
1455 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
1456 |
|
---|
1457 | glTranslatef(0.1f, 0.1f, 0.0f);
|
---|
1458 | glScalef(0.8f, 0.8f, 1.0f);
|
---|
1459 | glMatrixMode(GL_MODELVIEW);
|
---|
1460 | glLoadIdentity();
|
---|
1461 |
|
---|
1462 | glColor3f(1.0f,0,0);
|
---|
1463 | glBegin(GL_LINE_STRIP);
|
---|
1464 | // glVertex3f(0,0,0);
|
---|
1465 |
|
---|
1466 | for (int i=0; i < costFunction.size(); i++) {
|
---|
1467 | float x = i*scalex;
|
---|
1468 | float y = log10(costFunction[i])*scaley;
|
---|
1469 | glVertex3f(x,y,0.0f);
|
---|
1470 | }
|
---|
1471 | glEnd();
|
---|
1472 |
|
---|
1473 | glColor3f(1.0f,0,0);
|
---|
1474 | glBegin(GL_LINES);
|
---|
1475 | float x = currentPos*scalex;
|
---|
1476 | glVertex3f(x,0.0,0.0f);
|
---|
1477 | glVertex3f(x,1.0f,0.0f);
|
---|
1478 | glEnd();
|
---|
1479 |
|
---|
1480 | glColor3f(0.0f,0,0);
|
---|
1481 | // show a grid
|
---|
1482 | glBegin(GL_LINE_LOOP);
|
---|
1483 | glVertex3f(0,0,0.0f);
|
---|
1484 | glVertex3f(1,0,0.0f);
|
---|
1485 | glVertex3f(1,1,0.0f);
|
---|
1486 | glVertex3f(0,1,0.0f);
|
---|
1487 | glEnd();
|
---|
1488 |
|
---|
1489 | glBegin(GL_LINES);
|
---|
1490 | for (int i=0; i < costFunction.size(); i += 1000) {
|
---|
1491 | float x = i*scalex;
|
---|
1492 | glVertex3f(x,0.0,0.0f);
|
---|
1493 | glVertex3f(x,1.0f,0.0f);
|
---|
1494 | }
|
---|
1495 |
|
---|
1496 | for (int i=0; pow(10, i) < maxCost; i+=1) {
|
---|
1497 | float y = i*scaley;
|
---|
1498 | // QString s;
|
---|
1499 | // s.sprintf("%d", (int)pow(10,i));
|
---|
1500 | // renderText(width()/2+5, y*height(), s);
|
---|
1501 | glVertex3f(0.0f, y, 0.0f);
|
---|
1502 | glVertex3f(1.0f, y, 0.0f);
|
---|
1503 | }
|
---|
1504 |
|
---|
1505 | glEnd();
|
---|
1506 |
|
---|
1507 |
|
---|
1508 | // restore the projection matrix
|
---|
1509 | glMatrixMode(GL_PROJECTION);
|
---|
1510 | glPopMatrix();
|
---|
1511 | glMatrixMode(GL_MODELVIEW);
|
---|
1512 | glEnable(GL_DEPTH_TEST);
|
---|
1513 |
|
---|
1514 | }
|
---|
1515 |
|
---|
1516 |
|
---|
1517 |
|
---|
1518 | }
|
---|
1519 |
|
---|
1520 | void
|
---|
1521 | QtGlRendererWidget::RenderInfo()
|
---|
1522 | {
|
---|
1523 |
|
---|
1524 | // $$JB temporal hack for two windows separation
|
---|
1525 | if (1) {
|
---|
1526 |
|
---|
1527 | // model view
|
---|
1528 | glPushMatrix();
|
---|
1529 | glLoadIdentity();
|
---|
1530 |
|
---|
1531 | // init ortographic projection
|
---|
1532 | glMatrixMode(GL_PROJECTION);
|
---|
1533 | glPushMatrix();
|
---|
1534 |
|
---|
1535 | glLoadIdentity();
|
---|
1536 | gluOrtho2D(0, 1.0f, 0, 1.0f);
|
---|
1537 |
|
---|
1538 | float w = 0.01f;
|
---|
1539 | float h = 1.0f;
|
---|
1540 | float px = 0.0f;
|
---|
1541 | float py = 0.0f;
|
---|
1542 |
|
---|
1543 | glColor3f(0.8f, 0.8f, 0.8f);
|
---|
1544 | glBegin(GL_QUADS);
|
---|
1545 |
|
---|
1546 | glVertex3f(px+w, py, 0);
|
---|
1547 | glVertex3f(px+w, py+h + w, 0);
|
---|
1548 | glVertex3f(px, py+h, 0);
|
---|
1549 | glVertex3f(px, py, 0);
|
---|
1550 | glEnd();
|
---|
1551 |
|
---|
1552 | // projection
|
---|
1553 | glPopMatrix();
|
---|
1554 |
|
---|
1555 | glMatrixMode(GL_MODELVIEW);
|
---|
1556 | // model view
|
---|
1557 | glPopMatrix();
|
---|
1558 | }
|
---|
1559 |
|
---|
1560 |
|
---|
1561 | QString s;
|
---|
1562 | int vc = 0;
|
---|
1563 | if (mViewCellsManager)
|
---|
1564 | vc = mViewCellsManager->GetViewCells().size();
|
---|
1565 | int filter = 0;
|
---|
1566 | if (mViewCellsManager)
|
---|
1567 | filter = mViewCellsManager->GetMaxFilterSize();
|
---|
1568 |
|
---|
1569 | glColor3f(1.0f,1.0f,1.0f);
|
---|
1570 |
|
---|
1571 | s.sprintf("frame:%04d viewpoint:(%4.1f,%4.1f,%4.1f) dir:(%4.1f,%4.1f,%4.1f)",
|
---|
1572 | mFrame,
|
---|
1573 | mViewPoint.x,
|
---|
1574 | mViewPoint.y,
|
---|
1575 | mViewPoint.z,
|
---|
1576 | mViewDirection.x,
|
---|
1577 | mViewDirection.y,
|
---|
1578 | mViewDirection.z
|
---|
1579 | );
|
---|
1580 |
|
---|
1581 | renderText(20,20,s);
|
---|
1582 |
|
---|
1583 | s.sprintf("viewcells:%04d filter:%04d pvs:%04d error:%5.5f\%",
|
---|
1584 | vc,
|
---|
1585 | filter,
|
---|
1586 | mPvsSize,
|
---|
1587 | mRenderError*100.0f);
|
---|
1588 |
|
---|
1589 |
|
---|
1590 | renderText(20,40,s);
|
---|
1591 |
|
---|
1592 |
|
---|
1593 |
|
---|
1594 |
|
---|
1595 | }
|
---|
1596 |
|
---|
1597 |
|
---|
1598 | void
|
---|
1599 | QtGlRendererWidget::SetViewCellGranularity(int number)
|
---|
1600 | {
|
---|
1601 | if (mViewCellsManager)
|
---|
1602 | // mViewCellsManager->SetMaxFilterSize(number);
|
---|
1603 | mViewCellsManager->CollectViewCells(number);
|
---|
1604 |
|
---|
1605 | updateGL();
|
---|
1606 | }
|
---|
1607 |
|
---|
1608 | void
|
---|
1609 | QtGlRendererWidget::SetVisibilityFilterSize(int number)
|
---|
1610 | {
|
---|
1611 | if (mViewCellsManager)
|
---|
1612 | mViewCellsManager->SetMaxFilterSize(number);
|
---|
1613 | updateGL();
|
---|
1614 | }
|
---|
1615 |
|
---|
1616 | void
|
---|
1617 | QtGlRendererWidget::SetSpatialFilterSize(int number)
|
---|
1618 | {
|
---|
1619 | mSpatialFilterSize = 1e-3*number;
|
---|
1620 | updateGL();
|
---|
1621 | }
|
---|
1622 |
|
---|
1623 | void
|
---|
1624 | QtGlRendererWidget::SetSceneCut(int number)
|
---|
1625 | {
|
---|
1626 | // assume the cut plane can only be aligned with xz plane
|
---|
1627 | // shift it along y according to number, which is percentage of the bounding
|
---|
1628 | // box position
|
---|
1629 | if (mViewCellsManager) {
|
---|
1630 | AxisAlignedBox3 box = mViewCellsManager->GetViewSpaceBox();
|
---|
1631 | Vector3 p = box.Min() + (number/1000.0f)*box.Max();
|
---|
1632 | mSceneCutPlane.mNormal = Vector3(0,-1,0);
|
---|
1633 | mSceneCutPlane.mD = -DotProd(mSceneCutPlane.mNormal, p);
|
---|
1634 | updateGL();
|
---|
1635 | }
|
---|
1636 | }
|
---|
1637 |
|
---|
1638 | void
|
---|
1639 | QtGlRendererWidget::SetTopDistance(int number)
|
---|
1640 | {
|
---|
1641 | mTopDistance = number/1000.0f;
|
---|
1642 | updateGL();
|
---|
1643 | }
|
---|
1644 |
|
---|
1645 | void
|
---|
1646 | QtGlRendererWidget::RenderViewCells()
|
---|
1647 | {
|
---|
1648 | mUseFalseColors = true;
|
---|
1649 |
|
---|
1650 | glPushAttrib(GL_CURRENT_BIT | GL_ENABLE_BIT | GL_POLYGON_BIT);
|
---|
1651 |
|
---|
1652 | glEnable(GL_CULL_FACE);
|
---|
1653 | //glDisable(GL_CULL_FACE);
|
---|
1654 | glCullFace(GL_FRONT);
|
---|
1655 | double eq[4];
|
---|
1656 | eq[0] = mSceneCutPlane.mNormal.x;
|
---|
1657 | eq[1] = mSceneCutPlane.mNormal.y;
|
---|
1658 | eq[2] = mSceneCutPlane.mNormal.z;
|
---|
1659 | eq[3] = mSceneCutPlane.mD;
|
---|
1660 |
|
---|
1661 | if (mCutViewCells) {
|
---|
1662 | glClipPlane(GL_CLIP_PLANE0, eq);
|
---|
1663 | glEnable(GL_CLIP_PLANE0);
|
---|
1664 | }
|
---|
1665 |
|
---|
1666 | int i;
|
---|
1667 | ViewCellContainer &viewcells = mViewCellsManager->GetViewCells();
|
---|
1668 | int maxPvs = -1;
|
---|
1669 | for (i=0; i < viewcells.size(); i++)
|
---|
1670 | {
|
---|
1671 | ViewCell *vc = viewcells[i];
|
---|
1672 | const int p = vc->GetPvs().CountObjectsInPvs();
|
---|
1673 | if (p > maxPvs)
|
---|
1674 | maxPvs = p;
|
---|
1675 | }
|
---|
1676 |
|
---|
1677 |
|
---|
1678 | for (i=0; i < viewcells.size(); i++) {
|
---|
1679 | ViewCell *vc = viewcells[i];
|
---|
1680 | // Mesh *m = vc->GetMesh();
|
---|
1681 |
|
---|
1682 |
|
---|
1683 | RgbColor c;
|
---|
1684 |
|
---|
1685 | if (!mShowPvsSizes)
|
---|
1686 | c = vc->GetColor();
|
---|
1687 | else {
|
---|
1688 | const float importance = (float)vc->GetPvs().CountObjectsInPvs() / (float)maxPvs;
|
---|
1689 | c = RgbColor(importance, 1.0f - importance, 0.0f);
|
---|
1690 | }
|
---|
1691 | glColor3f(c.r, c.g, c.b);
|
---|
1692 |
|
---|
1693 | RenderViewCell(vc);
|
---|
1694 | }
|
---|
1695 |
|
---|
1696 |
|
---|
1697 | glPopAttrib();
|
---|
1698 |
|
---|
1699 | }
|
---|
1700 |
|
---|
1701 |
|
---|
1702 |
|
---|
1703 |
|
---|
1704 |
|
---|
1705 | /***********************************************************************/
|
---|
1706 | /* QtGlDebuggerWidget implementation */
|
---|
1707 | /***********************************************************************/
|
---|
1708 |
|
---|
1709 |
|
---|
1710 | QtGlDebuggerWidget::QtGlDebuggerWidget(QtGlRendererBuffer *buf, QWidget *parent)
|
---|
1711 | : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), mRenderBuffer(buf)
|
---|
1712 | {
|
---|
1713 | // create the pbuffer
|
---|
1714 | //pbuffer = new QGLPixelBuffer(QSize(512, 512), format(), this);
|
---|
1715 | timerId = startTimer(20);
|
---|
1716 | setWindowTitle(("OpenGL pbuffers"));
|
---|
1717 | }
|
---|
1718 |
|
---|
1719 |
|
---|
1720 | QtGlDebuggerWidget::~QtGlDebuggerWidget()
|
---|
1721 | {
|
---|
1722 | mRenderBuffer->releaseFromDynamicTexture();
|
---|
1723 | glDeleteTextures(1, &dynamicTexture);
|
---|
1724 |
|
---|
1725 | DEL_PTR(mRenderBuffer);
|
---|
1726 | }
|
---|
1727 |
|
---|
1728 |
|
---|
1729 |
|
---|
1730 | QtRendererControlWidget::QtRendererControlWidget(QWidget * parent, Qt::WFlags f):
|
---|
1731 | QWidget(parent, f)
|
---|
1732 | {
|
---|
1733 |
|
---|
1734 | QVBoxLayout *vl = new QVBoxLayout;
|
---|
1735 | setLayout(vl);
|
---|
1736 |
|
---|
1737 | QWidget *vbox = new QGroupBox("ViewCells", this);
|
---|
1738 | layout()->addWidget(vbox);
|
---|
1739 |
|
---|
1740 | vl = new QVBoxLayout;
|
---|
1741 | vbox->setLayout(vl);
|
---|
1742 |
|
---|
1743 | QLabel *label = new QLabel("Granularity");
|
---|
1744 | vbox->layout()->addWidget(label);
|
---|
1745 |
|
---|
1746 | QSlider *slider = new QSlider(Qt::Horizontal, vbox);
|
---|
1747 | vl->addWidget(slider);
|
---|
1748 | slider->show();
|
---|
1749 | slider->setRange(1, 10000);
|
---|
1750 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
1751 | slider->setValue(200);
|
---|
1752 |
|
---|
1753 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetViewCellGranularity(int)));
|
---|
1754 |
|
---|
1755 | label = new QLabel("Filter size");
|
---|
1756 | vbox->layout()->addWidget(label);
|
---|
1757 |
|
---|
1758 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
1759 | vbox->layout()->addWidget(slider);
|
---|
1760 | slider->show();
|
---|
1761 | slider->setRange(1, 100);
|
---|
1762 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
1763 | slider->setValue(3);
|
---|
1764 |
|
---|
1765 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetVisibilityFilterSize(int)));
|
---|
1766 |
|
---|
1767 |
|
---|
1768 | label = new QLabel("Spatial Filter size");
|
---|
1769 | vbox->layout()->addWidget(label);
|
---|
1770 |
|
---|
1771 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
1772 | vbox->layout()->addWidget(slider);
|
---|
1773 | slider->show();
|
---|
1774 | slider->setRange(1, 100);
|
---|
1775 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
1776 | slider->setValue(10);
|
---|
1777 |
|
---|
1778 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetSpatialFilterSize(int)));
|
---|
1779 |
|
---|
1780 |
|
---|
1781 |
|
---|
1782 | QWidget *hbox = new QWidget(vbox);
|
---|
1783 | vl->addWidget(hbox);
|
---|
1784 | QHBoxLayout *hlayout = new QHBoxLayout;
|
---|
1785 | hbox->setLayout(hlayout);
|
---|
1786 |
|
---|
1787 | QCheckBox *cb = new QCheckBox("Show viewcells", hbox);
|
---|
1788 | hlayout->addWidget(cb);
|
---|
1789 | cb->setChecked(false);
|
---|
1790 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowViewCells(bool)));
|
---|
1791 |
|
---|
1792 | cb = new QCheckBox("Render cost curve", hbox);
|
---|
1793 | hlayout->addWidget(cb);
|
---|
1794 | cb->setChecked(false);
|
---|
1795 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowRenderCost(bool)));
|
---|
1796 |
|
---|
1797 | cb = new QCheckBox("Show render cost", hbox);
|
---|
1798 | hlayout->addWidget(cb);
|
---|
1799 | cb->setChecked(false);
|
---|
1800 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowPvsSizes(bool)));
|
---|
1801 |
|
---|
1802 | cb = new QCheckBox("Show rays", hbox);
|
---|
1803 | hlayout->addWidget(cb);
|
---|
1804 | cb->setChecked(false);
|
---|
1805 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetShowRays(bool)));
|
---|
1806 |
|
---|
1807 | vbox->resize(800,100);
|
---|
1808 |
|
---|
1809 |
|
---|
1810 | vbox = new QGroupBox("Rendering", this);
|
---|
1811 | layout()->addWidget(vbox);
|
---|
1812 |
|
---|
1813 | vl = new QVBoxLayout;
|
---|
1814 | vbox->setLayout(vl);
|
---|
1815 |
|
---|
1816 |
|
---|
1817 |
|
---|
1818 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
1819 | vbox->layout()->addWidget(slider);
|
---|
1820 | slider->show();
|
---|
1821 | slider->setRange(0, 1000);
|
---|
1822 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
1823 | slider->setValue(1000);
|
---|
1824 |
|
---|
1825 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetSceneCut(int)));
|
---|
1826 |
|
---|
1827 | cb = new QCheckBox("Render errors", vbox);
|
---|
1828 | vbox->layout()->addWidget(cb);
|
---|
1829 | cb->setChecked(false);
|
---|
1830 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderErrors(bool)));
|
---|
1831 |
|
---|
1832 | cb = new QCheckBox("Use filter", vbox);
|
---|
1833 | vbox->layout()->addWidget(cb);
|
---|
1834 | cb->setChecked(true);
|
---|
1835 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetUseFilter(bool)));
|
---|
1836 |
|
---|
1837 | cb = new QCheckBox("Use spatial filter", vbox);
|
---|
1838 | vbox->layout()->addWidget(cb);
|
---|
1839 | cb->setChecked(true);
|
---|
1840 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetUseSpatialFilter(bool)));
|
---|
1841 |
|
---|
1842 | cb = new QCheckBox("Render filter", vbox);
|
---|
1843 | vbox->layout()->addWidget(cb);
|
---|
1844 | cb->setChecked(true);
|
---|
1845 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetRenderFilter(bool)));
|
---|
1846 |
|
---|
1847 |
|
---|
1848 | cb = new QCheckBox("Cut view cells", vbox);
|
---|
1849 | vbox->layout()->addWidget(cb);
|
---|
1850 | cb->setChecked(false);
|
---|
1851 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutViewCells(bool)));
|
---|
1852 |
|
---|
1853 | cb = new QCheckBox("Cut scene", vbox);
|
---|
1854 | vbox->layout()->addWidget(cb);
|
---|
1855 | cb->setChecked(false);
|
---|
1856 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetCutScene(bool)));
|
---|
1857 |
|
---|
1858 |
|
---|
1859 | slider = new QSlider(Qt::Horizontal, vbox);
|
---|
1860 | vbox->layout()->addWidget(slider);
|
---|
1861 | slider->show();
|
---|
1862 | slider->setRange(1, 1000);
|
---|
1863 | slider->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
|
---|
1864 | slider->setValue(500);
|
---|
1865 |
|
---|
1866 | connect(slider, SIGNAL(valueChanged(int)), SIGNAL(SetTopDistance(int)));
|
---|
1867 |
|
---|
1868 | cb = new QCheckBox("Top View", vbox);
|
---|
1869 | vbox->layout()->addWidget(cb);
|
---|
1870 | cb->setChecked(false);
|
---|
1871 | connect(cb, SIGNAL(toggled(bool)), SIGNAL(SetTopView(bool)));
|
---|
1872 |
|
---|
1873 | vbox = new QGroupBox("PVS Errors", this);
|
---|
1874 | layout()->addWidget(vbox);
|
---|
1875 |
|
---|
1876 | vl = new QVBoxLayout;
|
---|
1877 | vbox->setLayout(vl);
|
---|
1878 |
|
---|
1879 | mPvsErrorWidget = new QListWidget(vbox);
|
---|
1880 | vbox->layout()->addWidget(mPvsErrorWidget);
|
---|
1881 |
|
---|
1882 | connect(mPvsErrorWidget,
|
---|
1883 | SIGNAL(doubleClicked(const QModelIndex &)),
|
---|
1884 | this,
|
---|
1885 | SLOT(PvsErrorClicked(const QModelIndex &)));
|
---|
1886 |
|
---|
1887 | QPushButton *button = new QPushButton("Next Error Frame", vbox);
|
---|
1888 | vbox->layout()->addWidget(button);
|
---|
1889 | connect(button, SIGNAL(clicked(void)), SLOT(FocusNextPvsErrorFrame(void)));
|
---|
1890 |
|
---|
1891 | setWindowTitle("Preprocessor Control Widget");
|
---|
1892 | adjustSize();
|
---|
1893 | }
|
---|
1894 |
|
---|
1895 |
|
---|
1896 |
|
---|
1897 | void
|
---|
1898 | QtRendererControlWidget::FocusNextPvsErrorFrame(void)
|
---|
1899 | {
|
---|
1900 |
|
---|
1901 |
|
---|
1902 | }
|
---|
1903 |
|
---|
1904 | void
|
---|
1905 | QtRendererControlWidget::UpdatePvsErrorItem(int row,
|
---|
1906 | GlRendererBuffer::PvsErrorEntry &pvsErrorEntry)
|
---|
1907 | {
|
---|
1908 |
|
---|
1909 | QListWidgetItem *i = mPvsErrorWidget->item(row);
|
---|
1910 | QString s;
|
---|
1911 | s.sprintf("%5.5f", pvsErrorEntry.mError);
|
---|
1912 | if (i) {
|
---|
1913 | i->setText(s);
|
---|
1914 | } else {
|
---|
1915 | new QListWidgetItem(s, mPvsErrorWidget);
|
---|
1916 | }
|
---|
1917 | mPvsErrorWidget->update();
|
---|
1918 | }
|
---|
1919 |
|
---|
1920 |
|
---|
1921 | void QtGlDebuggerWidget::initializeGL()
|
---|
1922 | {
|
---|
1923 | glMatrixMode(GL_PROJECTION);
|
---|
1924 | glLoadIdentity();
|
---|
1925 |
|
---|
1926 | glFrustum(-1, 1, -1, 1, 10, 100);
|
---|
1927 | glTranslatef(-0.5f, -0.5f, -0.5f);
|
---|
1928 | glTranslatef(0.0f, 0.0f, -15.0f);
|
---|
1929 | glMatrixMode(GL_MODELVIEW);
|
---|
1930 |
|
---|
1931 | glEnable(GL_CULL_FACE);
|
---|
1932 | initCommon();
|
---|
1933 | initPbuffer();
|
---|
1934 |
|
---|
1935 | }
|
---|
1936 |
|
---|
1937 |
|
---|
1938 | void QtGlDebuggerWidget::resizeGL(int w, int h)
|
---|
1939 | {
|
---|
1940 | glViewport(0, 0, w, h);
|
---|
1941 | }
|
---|
1942 |
|
---|
1943 |
|
---|
1944 | void QtGlDebuggerWidget::paintGL()
|
---|
1945 | {
|
---|
1946 | // draw a spinning cube into the pbuffer..
|
---|
1947 | mRenderBuffer->makeCurrent();
|
---|
1948 |
|
---|
1949 | BeamSampleStatistics stats;
|
---|
1950 | mRenderBuffer->SampleBeamContributions(mSourceObject, mBeam, mSamples, stats);
|
---|
1951 |
|
---|
1952 | glFlush();
|
---|
1953 |
|
---|
1954 | // rendering directly to a texture is not supported on X11, unfortunately
|
---|
1955 | mRenderBuffer->updateDynamicTexture(dynamicTexture);
|
---|
1956 |
|
---|
1957 | // and use the pbuffer contents as a texture when rendering the
|
---|
1958 | // background and the bouncing cubes
|
---|
1959 | makeCurrent();
|
---|
1960 | glBindTexture(GL_TEXTURE_2D, dynamicTexture);
|
---|
1961 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
---|
1962 |
|
---|
1963 | // draw the background
|
---|
1964 | glMatrixMode(GL_MODELVIEW);
|
---|
1965 | glPushMatrix();
|
---|
1966 | glLoadIdentity();
|
---|
1967 | glMatrixMode(GL_PROJECTION);
|
---|
1968 | glPushMatrix();
|
---|
1969 | glLoadIdentity();
|
---|
1970 |
|
---|
1971 | glPopMatrix();
|
---|
1972 | glMatrixMode(GL_MODELVIEW);
|
---|
1973 | glPopMatrix();
|
---|
1974 | }
|
---|
1975 |
|
---|
1976 |
|
---|
1977 | void QtGlDebuggerWidget::initPbuffer()
|
---|
1978 | {
|
---|
1979 | // set up the pbuffer context
|
---|
1980 | mRenderBuffer->makeCurrent();
|
---|
1981 | /*mRenderBuffer->InitGL();
|
---|
1982 |
|
---|
1983 | glViewport(0, 0, mRenderBuffer->size().width(), mRenderBuffer->size().height());
|
---|
1984 | glMatrixMode(GL_PROJECTION);
|
---|
1985 | glLoadIdentity();
|
---|
1986 | glOrtho(-1, 1, -1, 1, -99, 99);
|
---|
1987 | glTranslatef(-0.5f, -0.5f, 0.0f);
|
---|
1988 | glMatrixMode(GL_MODELVIEW);
|
---|
1989 | glLoadIdentity();
|
---|
1990 |
|
---|
1991 | glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);*/
|
---|
1992 |
|
---|
1993 | // generate a texture that has the same size/format as the pbuffer
|
---|
1994 | dynamicTexture = mRenderBuffer->generateDynamicTexture();
|
---|
1995 |
|
---|
1996 | // bind the dynamic texture to the pbuffer - this is a no-op under X11
|
---|
1997 | mRenderBuffer->bindToDynamicTexture(dynamicTexture);
|
---|
1998 | makeCurrent();
|
---|
1999 | }
|
---|
2000 |
|
---|
2001 | void QtGlDebuggerWidget::initCommon()
|
---|
2002 | {
|
---|
2003 | glEnable(GL_TEXTURE_2D);
|
---|
2004 | glEnable(GL_DEPTH_TEST);
|
---|
2005 |
|
---|
2006 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
|
---|
2007 | }
|
---|
2008 |
|
---|
2009 |
|
---|
2010 |
|
---|
2011 | }
|
---|