1 | #include <algorithm>
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2 |
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3 | // the devil library
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4 | #include <IL/il.h>
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5 | #include <IL/ilu.h>
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6 | #include <IL/ilut.h>
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7 | #include <cassert>
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8 |
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9 | #include "common.h"
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10 | #include "Camera.h"
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11 | #include "Ray.h"
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12 | #include "SimpleRay.h"
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13 | #include "KdTree.h"
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14 | #include "Mesh.h"
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15 | #include "Exporter.h"
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16 | #include "SceneGraph.h"
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17 | #include "Preprocessor.h"
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18 | #include "RayCaster.h"
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19 | #include "tgaimg.h"
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20 |
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21 |
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22 | #ifdef USE_HAVRAN_RAYCASTER
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23 | //#include "timer.h"
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24 | #include "raypack.h"
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25 | #endif
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26 |
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27 | using namespace std;
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28 |
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29 | namespace GtpVisibilityPreprocessor {
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30 |
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31 |
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32 | void
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33 | InitDevIl()
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34 | {
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35 | ilInit();
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36 | ILuint ImageName;
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37 | ilGenImages(1, &ImageName);
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38 | ilBindImage(ImageName);
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39 | ilEnable(IL_FILE_OVERWRITE);
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40 |
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41 | // ilRegisterFormat(IL_RGBA);
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42 | // ilRegisterType(IL_FLOAT);
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43 |
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44 | // ilEnable(IL_ORIGIN_SET);
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45 | // ilOriginFunc(IL_ORIGIN_UPPER_LEFT);
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46 | }
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47 |
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48 | bool
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49 | Camera::SnapImage(string filename,
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50 | KdTree *tree,
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51 | SceneGraph *sceneGraph
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52 | )
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53 | {
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54 | int x;
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55 | int y;
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56 |
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57 | bool exportRays = false;
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58 | CTGAImage tgaimg; tgaimg.Init(mWidth, mHeight);
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59 |
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60 | vector<Ray *> rays;
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61 |
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62 | long t1 = GetTime();
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63 |
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64 | Ray ray;
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65 |
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66 | for (y = 0; y < mHeight; y++) {
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67 | cout<<"+" << flush;
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68 | for (x = 0; x < mWidth; x++) {
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69 | SetupRay(ray, mWidth - (x + 1), mHeight - (y + 1));
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70 |
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71 | bool debug = true;
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72 | // (y == mHeight/2) && (x== mWidth/3);
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73 | // MeshDebug = debug;
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74 |
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75 | if (debug)
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76 | ray.mFlags = (Ray::STORE_TESTED_OBJECTS | Ray::STORE_KDLEAVES);
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77 | else
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78 | ray.mFlags &= ~(Ray::STORE_TESTED_OBJECTS|Ray::STORE_KDLEAVES);
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79 |
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80 | if (tree->CastRay(ray)) {
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81 | // cout<<"I1";
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82 |
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83 | if (ray.intersections.size()) {
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84 | sort(ray.intersections.begin(), ray.intersections.end());
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85 | MeshInstance *mesh = (MeshInstance*)ray.intersections[0].mObject;
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86 | RgbColor color(1,1,1);
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87 | if (mesh->GetMesh()->mMaterial)
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88 | color = mesh->GetMesh()->mMaterial->mDiffuseColor;
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89 |
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90 | tgaimg.SetPixel(x, y, color.r * 255.f, color.g * 255.f, color.b * 255.f);
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91 | }
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92 | }
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93 | if (debug) {
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94 | Ray *nray = new Ray(ray);
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95 | rays.push_back(nray);
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96 | }
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97 | }
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98 | }
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99 |
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100 | long t2 = GetTime();
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101 | cout<<"#RAY_CAST_TIME\n";
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102 | cout<<TimeDiff(t1, t2)<<"\n";
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103 |
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104 |
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105 | cout<<"Saving image"<<endl;
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106 | tgaimg.SaveToFile(filename.c_str());
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107 |
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108 | cout<<"done."<<endl<<flush;
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109 |
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110 | Exporter *exporter = NULL;
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111 | if (1) {
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112 | exporter = Exporter::GetExporter(filename + "-rays" + ".x3d");
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113 | //exporter->SetFilled();
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114 |
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115 | exporter->SetWireframe();
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116 |
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117 | if (sceneGraph)
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118 | exporter->ExportScene(sceneGraph->GetRoot());
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119 |
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120 | //exporter->ExportKdTree(*tree);
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121 | //exporter->ExportBspTree(*bsptree);
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122 | exporter->ExportRays(rays, 2000);
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123 | int k =0;
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124 | for (int j=0; j < rays.size(); j++)
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125 | if (rays[j]->kdLeaves.size()) {
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126 | Ray *ray = rays[j];
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127 | int i;
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128 | exporter->SetWireframe();
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129 |
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130 | if (1)
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131 | for (i= 0; i < ray->kdLeaves.size(); i++)
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132 | exporter->ExportBox(tree->GetBox(ray->kdLeaves[i]));
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133 |
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134 | exporter->SetFilled();
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135 |
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136 | if (1)
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137 | for (i= 0; i < ray->testedObjects.size(); i++)
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138 | exporter->ExportIntersectable(ray->testedObjects[i]);
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139 | }
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140 |
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141 | delete exporter;
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142 | }
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143 |
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144 | return true;
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145 | }
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146 |
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147 |
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148 | void
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149 | Camera::SetupRay(Ray &ray, const int x, const int y)
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150 | {
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151 | Vector3 xv = mRight*((x - mWidth/2)/(float)mWidth);
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152 | Vector3 yv = mUp*((y - mHeight/2)/(float)mHeight);
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153 | Vector3 target = xv + yv + mDirection;
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154 |
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155 | ray.Clear();
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156 | ray.Init(mPosition, target, Ray::LOCAL_RAY);
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157 | ray.mFlags &= ~Ray::CULL_BACKFACES;
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158 | }
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159 |
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160 |
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161 | void
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162 | Camera::SetupRay(SimpleRay &ray, const int x, const int y)
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163 | {
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164 | Vector3 xv = mRight*((x - mWidth/2)/(float)mWidth);
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165 | Vector3 yv = mUp*((y - mHeight/2)/(float)mHeight);
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166 | Vector3 dir = mDirection - xv + yv;
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167 | dir.Normalize();
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168 |
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169 | ray.Set(mPosition, dir, 0,
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170 | 1.0f, ~(SimpleRay::F_BIDIRECTIONAL));
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171 | }
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172 |
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173 | bool
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174 | Camera::SnapImage(string filename,
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175 | RayCaster *raycaster,
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176 | AxisAlignedBox3 &bbox,
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177 | SceneGraph *sceneGraph
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178 | )
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179 | {
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180 | int x;
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181 | int y;
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182 |
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183 | bool exportRays = false;
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184 | CTGAImage tgaimg; tgaimg.Init(mWidth, mHeight);
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185 | tgaimg.FillInImage(0.0, 0.0f, 200.f);
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186 |
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187 | vector<Ray *> rays;
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188 |
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189 | long t1 = GetTime();
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190 |
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191 | SimpleRay ray;
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192 | VssRayContainer vssRays;
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193 |
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194 | bool doubleRays = true;
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195 | bool exploitDoubleRays = true;
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196 | if (!doubleRays)
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197 | exploitDoubleRays = false;
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198 |
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199 | //CTimer timer;
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200 | //timer.Start();
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201 |
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202 | //int ystart = 92;
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203 | int xstart = 0;
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204 | int ymax = mHeight;
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205 | for (y = 0; y < ymax; y++) {
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206 | cout<<"+" << flush;
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207 | for (x = 0; x < mWidth; x++) {
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208 | SetupRay(ray, x, y);
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209 | if (exploitDoubleRays)
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210 | ray.mDirection = - ray.mDirection;
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211 |
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212 | bool debug = false;
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213 | // (y == mHeight/2) && (x== mWidth/3);
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214 | // MeshDebug = debug;
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215 |
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216 | int res = raycaster->CastRay(ray,
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217 | vssRays,
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218 | bbox,
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219 | doubleRays, // castDoubleRay,
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220 | false); // pruneInvalidRays
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221 |
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222 | // cout << "End ------------------------ "
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223 | // << SimpleRay::IntersectionRes[0].intersectable
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224 | // << " t = " << SimpleRay::IntersectionRes[0].tdist
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225 | // << endl;
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226 |
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227 | if (res) {
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228 | Vector3 normal = SimpleRay::IntersectionRes[0].intersectable->GetNormal(0);
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229 | float v =
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230 | ray.mDirection.x * normal.x +
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231 | ray.mDirection.y * normal.y +
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232 | ray.mDirection.z * normal.z;
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233 | v = fabs(v);
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234 | v *= 200.0f;
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235 | if (v < 50.f) v = 50.f;
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236 | tgaimg.SetPixel(x, y, v, v, v);
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237 | }
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238 |
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239 | if (debug) {
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240 | Ray *nray = new Ray(ray.mOrigin, ray.mDirection,
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241 | Ray::LOCAL_RAY);
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242 | rays.push_back(nray);
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243 | }
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244 | }
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245 | } // for y
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246 |
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247 | //timer.Stop();
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248 |
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249 | long t2 = GetTime();
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250 | cout<<"\n#RAY_CAST_TIME = ";
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251 | cout << TimeDiff(t1, t2)<<" [mikrosec]\n";
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252 |
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253 | cout<<"Saving image"<<endl;
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254 |
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255 | tgaimg.SaveToFile(filename.c_str());
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256 |
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257 | //ilRegisterType(IL_FLOAT);
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258 | //ilTexImage(mWidth, mHeight, 1, 4, IL_RGBA, IL_FLOAT, buffer);
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259 | //ilSaveImage((char *const)filename.c_str());
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260 | //delete buffer;
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261 |
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262 | cout<<"done."<<endl<<flush;
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263 |
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264 | return true;
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265 | }
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266 |
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267 |
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268 | bool
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269 | Camera::SnapImage2(string filename,
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270 | RayCaster *raycaster,
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271 | AxisAlignedBox3 &bbox,
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272 | SceneGraph *sceneGraph)
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273 | {
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274 | int x;
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275 | int y;
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276 |
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277 | bool exportRays = false;
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278 | CTGAImage tgaimg; tgaimg.Init(mWidth, mHeight);
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279 | tgaimg.FillInImage(0.0, 0.0f, 200.f);
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280 |
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281 | vector<Ray *> raysDebug;
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282 |
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283 | long t1 = GetTime();
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284 |
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285 | SimpleRay ray;
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286 | SimpleRayContainer rays;
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287 | VssRayContainer vssRays;
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288 |
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289 | bool doubleRays = false;
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290 | bool exploitDoubleRays = false;
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291 | int batchSize = 16;
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292 | if (!doubleRays)
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293 | exploitDoubleRays = false;
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294 | int shiftIndex = 0;
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295 | if (exploitDoubleRays)
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296 | shiftIndex = batchSize;
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297 |
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298 | //CTimer timer;
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299 | //timer.Start();
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300 |
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301 | //int ystart = 92;
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302 | int xstart = 0;
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303 | int ymax = mHeight;
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304 | for (y = 0; y < ymax; y++) {
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305 | if (y == 250) {
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306 | cout << "Debug y = " << y << endl;
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307 | }
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308 |
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309 | cout<<"+" << flush;
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310 | for (x = 0; x < mWidth; x += batchSize ) {
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311 | rays.erase(rays.begin(), rays.end());
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312 | int xi;
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313 | for (xi = 0; (xi < batchSize) && (x+xi < mWidth); xi++ ) {
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314 | SetupRay(ray, x + xi, y);
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315 | if (exploitDoubleRays)
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316 | ray.mDirection = -ray.mDirection;
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317 | rays.push_back(ray);
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318 | } // for
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319 |
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320 | bool debug = false;
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321 | // (y == mHeight/2) && (x== mWidth/3);
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322 | // MeshDebug = debug;
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323 |
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324 | #if 1
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325 | assert(batchSize == 16);
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326 | raycaster->CastRays16(rays,
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327 | vssRays,
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328 | bbox,
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329 | doubleRays, // castDoubleRay,
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330 | false); // pruneInvalidRays
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331 | #else
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332 | raycaster->CastSimpleForwardRays(rays, bbox);
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333 | #endif
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334 |
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335 | // cout << "End ------------------------ "
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336 | // << SimpleRay::IntersectionRes[0].intersectable
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337 | // << " t = " << SimpleRay::IntersectionRes[0].tdist
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338 | // << endl;
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339 |
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340 | for (xi = 0; (xi < batchSize) && (x+xi < mWidth); xi++ ) {
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341 | Intersectable* res =
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342 | SimpleRay::IntersectionRes[xi + shiftIndex].intersectable;
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343 |
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344 | if (res) {
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345 | Vector3 normal = res->GetNormal(0);
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346 | float v =
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347 | rays[xi].mDirection.x * normal.x +
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348 | rays[xi].mDirection.y * normal.y +
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349 | rays[xi].mDirection.z * normal.z;
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350 | v = fabs(v);
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351 | v *= 200.0f;
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352 | if (v < 50.f) v = 50.f;
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353 | tgaimg.SetPixel(x + xi, y, v, v, v);
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354 | }
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355 | }
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356 |
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357 | if (debug) {
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358 | Ray *nray = new Ray(ray.mOrigin, ray.mDirection,
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359 | Ray::LOCAL_RAY);
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360 | raysDebug.push_back(nray);
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361 | }
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362 | } // for x
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363 | } // for y
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364 |
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365 | //timer.Stop();
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366 |
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367 | long t2 = GetTime();
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368 | cout<<"\n#RAY_CAST_TIME = ";
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369 | cout << TimeDiff(t1, t2)<<" [mikrosec]\n";
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370 |
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371 | cout<<"Saving image"<<endl;
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372 |
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373 | tgaimg.SaveToFile(filename.c_str());
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374 |
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375 | //ilRegisterType(IL_FLOAT);
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376 | //ilTexImage(mWidth, mHeight, 1, 4, IL_RGBA, IL_FLOAT, buffer);
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377 | //ilSaveImage((char *const)filename.c_str());
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378 | //delete buffer;
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379 |
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380 | cout<<"done."<<endl<<flush;
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381 |
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382 | return true;
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383 | }
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384 |
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385 |
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386 | bool
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387 | Camera::SnapImagePacket(string filename,
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388 | RayCaster *raycaster,
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389 | AxisAlignedBox3 &bbox,
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390 | SceneGraph *sceneGraph
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391 | )
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392 | {
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393 | #ifdef USE_HAVRAN_RAYCASTER
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394 | #ifdef _USE_HAVRAN_SSE
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395 |
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396 | int x;
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397 | int y;
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398 |
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399 | bool exportRays = false;
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400 |
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401 | // - components*mWidth;
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402 | CTGAImage tgaimg; tgaimg.Init(mWidth, mHeight);
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403 | tgaimg.FillInImage(0.0, 0.0f, 200.f); // blue color image
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404 |
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405 | vector<Ray *> rays;
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406 |
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407 | long t1 = GetTime();
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408 |
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409 | SimpleRay ray;
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410 | VssRayContainer vssRays;
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411 |
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412 | //CTimer timer;
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413 | //timer.Start();
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414 |
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415 | bool doubleRays = false;
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416 | bool exploitDoubleRays = false;
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417 | if (!doubleRays)
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418 | exploitDoubleRays = false;
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419 |
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420 | GALIGN16 RayPacket2x2 rp;
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421 | //int ystart = 92;
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422 | //int xstart = 738;
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423 | int pixels = 0;;
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424 | for (y = 0; y < mHeight-1; y+=2) {
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425 | //for (y = ystart-2; y > 0; y-=2) {
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426 | for (x = 0; x < mWidth-1; x+=2) {
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427 | int i = 0;
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428 | for (int yi = 0; yi < 2; yi++) {
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429 | for (int xi = 0; xi < 2; xi++) {
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430 | SetupRay(ray, x+xi, y+yi);
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431 | rp.SetLoc(i, ray.mOrigin);
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432 | rp.SetDir(i, ray.mDirection);
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433 | if (exploitDoubleRays)
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434 | rp.SetDir(i, -ray.mDirection);
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435 | i++;
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436 | } // for xi
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437 | } // for yi
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438 | pixels += 4;
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439 | if (pixels > mWidth) {
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440 | cout << "+" << flush;
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441 | pixels = 0;
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442 | }
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443 |
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444 | raycaster->CastRaysPacket2x2(rp, doubleRays, false);
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445 |
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446 | i = 0;
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447 | for (int yi = 0; yi < 2; yi++) {
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448 | for (int xi = 0; xi < 2; xi++) {
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449 | Intersectable* res = rp.GetObject(i);
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450 | if (res) {
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451 | #if 0
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452 | // This is debugging code to find a bug
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453 | for (int j = 0; j < 4; j++) {
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454 | cout << " j = " << j << " obj = "
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455 | << rp.GetObject(j)
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456 | << " t = " << rp.GetT(j);
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457 | ray.Set(rp.GetLoc(j), rp.GetDir(j), 0, 1.0f, 0);
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458 | int res = raycaster->CastRay(ray,
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459 | vssRays,
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460 | bbox,
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461 | doubleRays, // castDoubleRay,
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462 | false); // pruneInvalidRays
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463 | cout << " correct result obj = "
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464 | << SimpleRay::IntersectionRes[0].intersectable
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465 | << " t = "
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466 | << SimpleRay::IntersectionRes[0].tdist
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467 | << endl;
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468 | } // for
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469 |
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470 | raycaster->CastRaysPacket2x2(rp, false, false);
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471 | #endif
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472 |
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473 | Vector3 normal = res->GetNormal(0);
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474 | float v =
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475 | ray.mDirection.x * normal.x +
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476 | ray.mDirection.y * normal.y +
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477 | ray.mDirection.z * normal.z;
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478 | v = fabs(v);
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479 | v *= 200.0f;
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480 | if (v < 50.f) v = 50.f;
|
---|
481 | tgaimg.SetPixel(x+xi, y+yi, v, v, v);
|
---|
482 | }
|
---|
483 | i++;
|
---|
484 | } // xi
|
---|
485 | } // yi
|
---|
486 | } // for x
|
---|
487 | } // for y
|
---|
488 |
|
---|
489 | //timer.Stop();
|
---|
490 |
|
---|
491 | long t2 = GetTime();
|
---|
492 | cout<<"\n#RAY_CAST_TIME = ";
|
---|
493 | cout << TimeDiff(t1, t2)<<" [mikrosec]\n";
|
---|
494 |
|
---|
495 | cout<<"Saving image"<<endl;
|
---|
496 | tgaimg.SaveToFile(filename.c_str());
|
---|
497 |
|
---|
498 | #endif // _USE_HAVRAN_SSE
|
---|
499 | #endif // USE_HAVRAN_RAYCASTER
|
---|
500 | cout<<"done."<<endl<<flush;
|
---|
501 |
|
---|
502 | return true;
|
---|
503 | }
|
---|
504 |
|
---|
505 | inline static bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
506 | {
|
---|
507 | return obj1->mId < obj2->mId;
|
---|
508 | }
|
---|
509 |
|
---|
510 |
|
---|
511 | bool
|
---|
512 | Camera::SnapImagePacket2(string filename,
|
---|
513 | RayCaster *raycaster,
|
---|
514 | AxisAlignedBox3 &bbox,
|
---|
515 | SceneGraph *sceneGraph
|
---|
516 | )
|
---|
517 | {
|
---|
518 | #ifdef USE_HAVRAN_RAYCASTER
|
---|
519 | #ifdef _USE_HAVRAN_SSE
|
---|
520 |
|
---|
521 | int x;
|
---|
522 | int y;
|
---|
523 |
|
---|
524 | bool exportRays = false;
|
---|
525 |
|
---|
526 | // - components*mWidth;
|
---|
527 | CTGAImage tgaimg; tgaimg.Init(mWidth, mHeight);
|
---|
528 | tgaimg.FillInImage(0.0, 0.0f, 200.f); // blue color image
|
---|
529 |
|
---|
530 | vector<Ray *> rays;
|
---|
531 |
|
---|
532 | long t1 = GetTime();
|
---|
533 |
|
---|
534 | SimpleRay ray;
|
---|
535 | VssRayContainer vssRays;
|
---|
536 |
|
---|
537 | //CTimer timer;
|
---|
538 | //timer.Start();
|
---|
539 |
|
---|
540 | bool doubleRays = false;
|
---|
541 | bool exploitDoubleRays = false;
|
---|
542 | if (!doubleRays)
|
---|
543 | exploitDoubleRays = false;
|
---|
544 |
|
---|
545 | Vector3 origin4[4];
|
---|
546 | Vector3 direction4[4];
|
---|
547 | int result4[4];
|
---|
548 | float dist4[4];
|
---|
549 |
|
---|
550 | GALIGN16 RayPacket2x2 rp;
|
---|
551 | //int ystart = 92;
|
---|
552 | //int xstart = 738;
|
---|
553 | int pixels = 0;;
|
---|
554 | for (y = 0; y < mHeight-1; y+=2) {
|
---|
555 | //for (y = ystart-2; y > 0; y-=2) {
|
---|
556 | for (x = 0; x < mWidth-1; x+=2) {
|
---|
557 | int i = 0;
|
---|
558 | for (int yi = 0; yi < 2; yi++) {
|
---|
559 | for (int xi = 0; xi < 2; xi++) {
|
---|
560 | SetupRay(ray, x+xi, y+yi);
|
---|
561 | origin4[i] = ray.mOrigin;
|
---|
562 | direction4[i] = ray.mDirection;
|
---|
563 | if (exploitDoubleRays)
|
---|
564 | direction4[i] = -ray.mDirection;
|
---|
565 | i++;
|
---|
566 | } // for xi
|
---|
567 | } // for yi
|
---|
568 | pixels += 4;
|
---|
569 | if (pixels > mWidth) {
|
---|
570 | cout << "+" << flush;
|
---|
571 | pixels = 0;
|
---|
572 | }
|
---|
573 |
|
---|
574 | raycaster->CastRaysPacket4(bbox.Min(), bbox.Max(),
|
---|
575 | origin4,
|
---|
576 | direction4,
|
---|
577 | result4,
|
---|
578 | dist4);
|
---|
579 |
|
---|
580 | i = 0;
|
---|
581 | for (int yi = 0; yi < 2; yi++) {
|
---|
582 | for (int xi = 0; xi < 2; xi++) {
|
---|
583 | int objId = result4[i];
|
---|
584 | if (objId != -1) {
|
---|
585 | MeshInstance dummyInst(NULL);
|
---|
586 | dummyInst.SetId(objId);
|
---|
587 | ObjectContainer &objects = preprocessor->mObjects;
|
---|
588 | ObjectContainer::const_iterator oit =
|
---|
589 | lower_bound(objects.begin(), objects.end(),
|
---|
590 | (Intersectable *)&dummyInst, ilt);
|
---|
591 |
|
---|
592 | if ((oit != objects.end()) && ((*oit)->GetId() == objId)) {
|
---|
593 | Intersectable *res = *oit;
|
---|
594 |
|
---|
595 | Vector3 normal = res->GetNormal(0);
|
---|
596 | float v =
|
---|
597 | ray.mDirection.x * normal.x +
|
---|
598 | ray.mDirection.y * normal.y +
|
---|
599 | ray.mDirection.z * normal.z;
|
---|
600 | v = fabs(v);
|
---|
601 | v *= 200.0f;
|
---|
602 | if (v < 50.f) v = 50.f;
|
---|
603 | tgaimg.SetPixel(x+xi, y+yi, v, v, v);
|
---|
604 | }
|
---|
605 | else {
|
---|
606 | cout <<"*" << endl;
|
---|
607 | }
|
---|
608 |
|
---|
609 | } // object intersected
|
---|
610 | i++;
|
---|
611 | } // xi
|
---|
612 | } // yi
|
---|
613 | } // for x
|
---|
614 | } // for y
|
---|
615 |
|
---|
616 | //timer.Stop();
|
---|
617 |
|
---|
618 | long t2 = GetTime();
|
---|
619 | cout<<"\n#RAY_CAST_TIME = ";
|
---|
620 | cout << TimeDiff(t1, t2)<<" [mikrosec]\n";
|
---|
621 |
|
---|
622 | cout<<"Saving image"<<endl;
|
---|
623 | tgaimg.SaveToFile(filename.c_str());
|
---|
624 |
|
---|
625 | #endif // _USE_HAVRAN_SSE
|
---|
626 | #endif // USE_HAVRAN_RAYCASTER
|
---|
627 | cout<<"done."<<endl<<flush;
|
---|
628 |
|
---|
629 | return true;
|
---|
630 | }
|
---|
631 |
|
---|
632 | }
|
---|
633 |
|
---|