[447] | 1 | #include "SceneGraph.h"
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| 2 | #include "KdTree.h"
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| 3 | #include "RssPreprocessor.h"
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| 4 | #include "X3dExporter.h"
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| 5 | #include "Environment.h"
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| 6 | #include "MutualVisibility.h"
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| 7 | #include "Polygon3.h"
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| 8 | #include "ViewCell.h"
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| 9 | #include "VssRay.h"
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| 10 | #include "RssTree.h"
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[451] | 11 | #include "ViewCellsManager.h"
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[452] | 12 | #include "RenderSimulator.h"
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[447] | 13 |
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[452] | 14 | static bool useViewSpaceBox = true;
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[447] | 15 | static bool use2dSampling = false;
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[463] | 16 | static bool fromBoxVisibility = false;
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[447] | 17 |
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| 18 | static bool exportPvs = false;
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[463] | 19 | static bool exportRssTree = false;
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| 20 |
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| 21 | static int numExportRays = 5000;
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[459] | 22 | // static int numExportRays = 0;
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[447] | 23 |
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[463] | 24 | static bool useViewcells = false;
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| 25 |
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[447] | 26 | RssPreprocessor::RssPreprocessor():
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| 27 | mPass(0),
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| 28 | mVssRays()
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| 29 | {
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| 30 | // this should increase coherence of the samples
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| 31 | environment->GetIntValue("RssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 32 | environment->GetIntValue("RssPreprocessor.initialSamples", mInitialSamples);
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| 33 | environment->GetIntValue("RssPreprocessor.vssSamples", mRssSamples);
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| 34 | environment->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
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| 35 | environment->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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| 36 | environment->GetIntValue("BspTree.Construction.samples", mBspConstructionSamples);
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| 37 |
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| 38 | mStats.open("stats.log");
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| 39 | }
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| 40 |
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| 41 | RssPreprocessor::~RssPreprocessor()
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| 42 | {
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| 43 | CLEAR_CONTAINER(mVssRays);
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| 44 | }
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| 45 |
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| 46 | void
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| 47 | RssPreprocessor::SetupRay(Ray &ray,
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| 48 | const Vector3 &point,
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| 49 | const Vector3 &direction
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| 50 | )
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| 51 | {
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| 52 | ray.intersections.clear();
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| 53 | // do not store anything else then intersections at the ray
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| 54 | ray.Init(point, direction, Ray::LOCAL_RAY);
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| 55 | }
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| 56 |
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| 57 | int
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| 58 | RssPreprocessor::CastRay(
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| 59 | Vector3 &viewPoint,
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| 60 | Vector3 &direction,
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| 61 | VssRayContainer &vssRays
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| 62 | )
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| 63 | {
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| 64 | int hits = 0;
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| 65 | static Ray ray;
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| 66 | AxisAlignedBox3 box = mKdTree->GetBox();
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| 67 |
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| 68 | AxisAlignedBox3 sbox = box;
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| 69 | sbox.Enlarge(Vector3(-Limits::Small));
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| 70 | if (!sbox.IsInside(viewPoint))
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| 71 | return 0;
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| 72 |
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| 73 | SetupRay(ray, viewPoint, direction);
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| 74 | // cast ray to KD tree to find intersection with other objects
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| 75 | Intersectable *objectA, *objectB;
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| 76 | Vector3 pointA, pointB;
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| 77 | float bsize = Magnitude(box.Size());
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| 78 |
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| 79 | if (mKdTree->CastRay(ray)) {
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| 80 | objectA = ray.intersections[0].mObject;
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| 81 | pointA = ray.Extrap(ray.intersections[0].mT);
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| 82 | } else {
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| 83 | objectA = NULL;
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| 84 | // compute intersection with the scene bounding box
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| 85 | float tmin, tmax;
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| 86 | box.ComputeMinMaxT(ray, &tmin, &tmax);
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| 87 | if (tmax > bsize) {
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| 88 | //cerr<<"Warning: tmax > box size tmax="<<tmax<<" tmin="<<tmin<<" size="<<bsize<<endl;
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| 89 | //cerr<<"ray"<<ray<<endl;
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| 90 | }
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| 91 | pointA = ray.Extrap(tmax);
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| 92 | }
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| 93 |
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| 94 | bool detectEmptyViewSpace = true;
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| 95 |
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| 96 | if (detectEmptyViewSpace) {
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| 97 | SetupRay(ray, pointA, -direction);
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| 98 | } else
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| 99 | SetupRay(ray, viewPoint, -direction);
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| 100 |
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| 101 |
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| 102 | if (mKdTree->CastRay(ray)) {
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| 103 | objectB = ray.intersections[0].mObject;
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| 104 | pointB = ray.Extrap(ray.intersections[0].mT);
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| 105 | } else {
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| 106 | objectB = NULL;
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| 107 | float tmin, tmax;
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| 108 | box.ComputeMinMaxT(ray, &tmin, &tmax);
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| 109 | if (tmax > bsize) {
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| 110 | //cerr<<"Warning: tmax > box size tmax="<<tmax<<" tmin="<<tmin<<" size="<<bsize<<endl;
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| 111 | //cerr<<"ray"<<ray<<endl;
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| 112 | }
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| 113 | pointB = ray.Extrap(tmax);
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| 114 | }
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| 115 |
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| 116 | VssRay *vssRay = NULL;
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| 117 |
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| 118 | bool validSample = true;
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| 119 | if (detectEmptyViewSpace) {
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| 120 | // check if the viewpoint lies on the line segment AB
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| 121 | if (Distance(pointA, pointB) <
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| 122 | Distance(viewPoint, pointA) + Distance(viewPoint, pointB) - Limits::Small) {
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| 123 | validSample = false;
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| 124 | }
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| 125 | }
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| 126 |
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| 127 | if (validSample) {
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| 128 | if (objectA) {
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| 129 | vssRay = new VssRay(pointB,
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| 130 | pointA,
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| 131 | objectB,
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| 132 | objectA);
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| 133 | vssRays.push_back(vssRay);
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| 134 | hits ++;
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| 135 | }
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| 136 |
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| 137 | if (objectB) {
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| 138 | vssRay = new VssRay(pointA,
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| 139 | pointB,
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| 140 | objectA,
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| 141 | objectB);
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| 142 | vssRays.push_back(vssRay);
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| 143 | hits ++;
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| 144 | }
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| 145 | }
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| 146 |
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| 147 | return hits;
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| 148 | }
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| 149 |
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| 150 |
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| 151 | Vector3
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| 152 | RssPreprocessor::GetViewpoint(AxisAlignedBox3 *viewSpaceBox)
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| 153 | {
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| 154 | AxisAlignedBox3 box;
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| 155 |
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| 156 | if (viewSpaceBox)
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| 157 | box =*viewSpaceBox;
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| 158 | else
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| 159 | box = mKdTree->GetBox();
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| 160 |
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| 161 | // shrink the box in the y direction
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| 162 | return box.GetRandomPoint();
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| 163 | }
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| 164 |
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| 165 | Vector3
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| 166 | RssPreprocessor::GetDirection(const Vector3 &viewpoint,
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| 167 | AxisAlignedBox3 *viewSpaceBox
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| 168 | )
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| 169 | {
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| 170 | Vector3 point;
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| 171 | if (!use2dSampling) {
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| 172 | Vector3 normal;
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| 173 | int i = RandomValue(0, mObjects.size()-1);
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| 174 | Intersectable *object = mObjects[i];
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| 175 | object->GetRandomSurfacePoint(point, normal);
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| 176 | } else {
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| 177 | AxisAlignedBox3 box;
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| 178 |
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| 179 | if (viewSpaceBox)
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| 180 | box =*viewSpaceBox;
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| 181 | else
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| 182 | box = mKdTree->GetBox();
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| 183 |
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| 184 | point = box.GetRandomPoint();
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| 185 | point.y = viewpoint.y;
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| 186 | }
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| 187 |
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| 188 | return point - viewpoint;
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| 189 | }
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| 190 |
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| 191 | int
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| 192 | RssPreprocessor::GenerateImportanceRays(RssTree *rssTree,
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| 193 | const int desiredSamples,
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| 194 | SimpleRayContainer &rays
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| 195 | )
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| 196 | {
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| 197 | int num;
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[463] | 198 |
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| 199 |
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[447] | 200 |
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| 201 | float avgPvsSize;
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| 202 | float avgRayContribution;
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| 203 | float avgPvsEntropy;
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| 204 | float avgRayLengthEntropy;
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| 205 | float avgImportance;
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[463] | 206 | float avgRays;
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[447] | 207 | rssTree->GetTreeStatistics(
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| 208 | avgPvsSize,
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[463] | 209 | avgRays,
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[447] | 210 | avgRayContribution,
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| 211 | avgPvsEntropy,
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| 212 | avgRayLengthEntropy,
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| 213 | avgImportance);
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| 214 |
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| 215 | cout<<
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| 216 | "#AVG_PVS_SIZE\n"<<avgPvsSize<<endl<<
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[463] | 217 | "#AVG_RAYS\n"<<avgRays<<endl<<
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[447] | 218 | "#AVG_RAY_CONTRIB\n"<<avgRayContribution<<endl<<
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| 219 | "#AVG_PVS_ENTROPY\n"<<avgPvsEntropy<<endl<<
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| 220 | "#AVG_RAY_LENGTH_ENTROPY\n"<<avgRayLengthEntropy<<endl<<
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| 221 | "#AVG_IMPORTANCE\n"<<avgImportance<<endl;
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| 222 |
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| 223 | if (0) {
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| 224 | float p = desiredSamples/(float)(avgRayContribution*rssTree->stat.Leaves());
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| 225 | num = rssTree->GenerateRays(p, rays);
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| 226 | } else {
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[459] | 227 | int leaves = rssTree->stat.Leaves()/1;
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[447] | 228 | num = rssTree->GenerateRays(desiredSamples, leaves, rays);
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| 229 | }
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| 230 |
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| 231 | cout<<"Generated "<<num<<" rays."<<endl;
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| 232 |
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| 233 | return num;
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| 234 | }
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| 235 |
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| 236 |
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| 237 | bool
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| 238 | RssPreprocessor::ExportRays(const char *filename,
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| 239 | const VssRayContainer &vssRays,
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| 240 | const int number
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| 241 | )
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| 242 | {
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| 243 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 244 |
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| 245 | float prob = number/(float)vssRays.size();
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| 246 |
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| 247 |
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| 248 | Exporter *exporter = NULL;
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| 249 | exporter = Exporter::GetExporter(filename);
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| 250 | // exporter->SetWireframe();
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| 251 | // exporter->ExportKdTree(*mKdTree);
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| 252 | exporter->SetFilled();
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| 253 | exporter->ExportScene(mSceneGraph->mRoot);
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| 254 | exporter->SetWireframe();
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| 255 |
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| 256 | if (mViewSpaceBox) {
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| 257 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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| 258 | exporter->ExportBox(*mViewSpaceBox);
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| 259 | exporter->ResetForcedMaterial();
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| 260 | }
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| 261 |
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| 262 | VssRayContainer rays; for (int i=0; i < vssRays.size(); i++)
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| 263 | if (RandomValue(0,1) < prob)
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| 264 | rays.push_back(vssRays[i]);
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| 265 |
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| 266 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
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| 267 |
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| 268 | delete exporter;
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| 269 |
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| 270 | cout<<"done."<<endl<<flush;
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| 271 |
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| 272 | return true;
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| 273 | }
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| 274 |
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| 275 |
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| 276 | bool
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| 277 | RssPreprocessor::ExportRssTree(char *filename,
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| 278 | RssTree *tree,
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| 279 | const Vector3 &dir
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| 280 | )
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| 281 | {
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| 282 | Exporter *exporter = Exporter::GetExporter(filename);
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| 283 | exporter->SetFilled();
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| 284 | exporter->ExportScene(mSceneGraph->mRoot);
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| 285 | // exporter->SetWireframe();
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| 286 | bool result = exporter->ExportRssTree2( *tree, dir );
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| 287 | delete exporter;
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| 288 | return result;
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| 289 | }
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| 290 |
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| 291 | bool
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| 292 | RssPreprocessor::ExportRssTreeLeaf(char *filename,
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| 293 | RssTree *tree,
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| 294 | RssTreeLeaf *leaf)
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| 295 | {
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| 296 | Exporter *exporter = NULL;
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| 297 | exporter = Exporter::GetExporter(filename);
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| 298 | exporter->SetWireframe();
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| 299 | exporter->ExportKdTree(*mKdTree);
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| 300 |
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| 301 | if (mViewSpaceBox) {
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| 302 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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| 303 | exporter->ExportBox(*mViewSpaceBox);
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| 304 | exporter->ResetForcedMaterial();
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| 305 | }
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| 306 |
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| 307 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 308 | exporter->ExportBox(tree->GetBBox(leaf));
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| 309 | exporter->ResetForcedMaterial();
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| 310 |
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| 311 | VssRayContainer rays[4];
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| 312 | for (int i=0; i < leaf->rays.size(); i++) {
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| 313 | int k = leaf->rays[i].GetRayClass();
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| 314 | rays[k].push_back(leaf->rays[i].mRay);
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| 315 | }
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| 316 |
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| 317 | // SOURCE RAY
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| 318 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 319 | // TERMINATION RAY
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| 320 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 321 | // PASSING_RAY
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| 322 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 323 | // CONTAINED_RAY
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| 324 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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| 325 |
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| 326 | delete exporter;
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| 327 | return true;
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| 328 | }
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| 329 |
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| 330 | void
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| 331 | RssPreprocessor::ExportRssTreeLeaves(RssTree *tree, const int number)
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| 332 | {
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| 333 | vector<RssTreeLeaf *> leaves;
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| 334 | tree->CollectLeaves(leaves);
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| 335 |
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| 336 | int num = 0;
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| 337 | int i;
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| 338 | float p = number / (float)leaves.size();
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| 339 | for (i=0; i < leaves.size(); i++) {
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| 340 | if (RandomValue(0,1) < p) {
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| 341 | char filename[64];
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| 342 | sprintf(filename, "rss-leaf-%04d.x3d", num);
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| 343 | ExportRssTreeLeaf(filename, tree, leaves[i]);
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| 344 | num++;
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| 345 | }
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| 346 | if (num >= number)
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| 347 | break;
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| 348 | }
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| 349 | }
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| 350 |
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| 351 |
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| 352 | float
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| 353 | RssPreprocessor::GetAvgPvsSize(RssTree *tree,
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| 354 | const vector<AxisAlignedBox3> &viewcells
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| 355 | )
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| 356 | {
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| 357 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 358 |
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| 359 | int sum = 0;
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| 360 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 361 | sum += tree->GetPvsSize(*it);
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| 362 |
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| 363 | return sum/(float)viewcells.size();
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| 364 | }
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| 365 |
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| 366 |
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| 367 | void
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| 368 | RssPreprocessor::ExportPvs(char *filename,
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| 369 | RssTree *rssTree
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| 370 | )
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| 371 | {
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| 372 | ObjectContainer pvs;
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| 373 | if (rssTree->CollectRootPvs(pvs)) {
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| 374 | Exporter *exporter = Exporter::GetExporter(filename);
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| 375 | exporter->SetFilled();
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| 376 | exporter->ExportGeometry(pvs);
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[459] | 377 | exporter->SetWireframe();
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| 378 | exporter->ExportBox(rssTree->bbox);
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| 379 | exporter->ExportViewpoint(rssTree->bbox.Center(), Vector3(1,0,0));
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[447] | 380 | delete exporter;
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| 381 | }
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| 382 | }
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| 383 |
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| 384 | bool
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| 385 | RssPreprocessor::ComputeVisibility()
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| 386 | {
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| 387 |
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| 388 | mSceneGraph->CollectObjects(&mObjects);
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| 389 |
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| 390 | long startTime = GetTime();
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| 391 |
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| 392 | int totalSamples = 0;
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| 393 |
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[451] | 394 | /// Rays used for post processing and visualizations.
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| 395 | RayContainer storedRays;
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[447] | 396 |
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| 397 | AxisAlignedBox3 *box = new AxisAlignedBox3(mKdTree->GetBox());
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| 398 |
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| 399 | if (fromBoxVisibility) {
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[459] | 400 | float m = box->Min(1);
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| 401 | float bsize = box->Size(1);
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| 402 |
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| 403 | float size = 0.02f;
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[447] | 404 | float s = 0.5f - size;
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| 405 | float olds = Magnitude(box->Size());
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| 406 | box->Enlarge(box->Size()*Vector3(-s));
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[459] | 407 | // Vector3 translation = Vector3(-olds*0.2f, 0, 0);
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| 408 | Vector3 translation = Vector3(-0.05*olds, 0, 0);
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[447] | 409 | box->SetMin(box->Min() + translation);
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| 410 | box->SetMax(box->Max() + translation);
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[459] | 411 |
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| 412 | box->SetMin(1, m + bsize*0.1);
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| 413 | box->SetMax(1, m + bsize*0.6);
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| 414 |
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| 415 |
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[447] | 416 | } else {
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| 417 |
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| 418 | // sample city like heights
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[459] | 419 | float m = box->Min(1);
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| 420 | float bsize = box->Size(1);
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| 421 | box->SetMin(1, m + bsize*0.2);
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| 422 | box->SetMax(1, m + bsize*0.3);
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[447] | 423 | }
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| 424 |
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| 425 | if (use2dSampling)
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| 426 | box->SetMax(1, box->Min(1));
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| 427 |
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| 428 | if (useViewSpaceBox)
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| 429 | mViewSpaceBox = box;
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| 430 | else
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| 431 | mViewSpaceBox = NULL;
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| 432 |
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| 433 |
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| 434 | RssTree *rssTree = NULL;
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| 435 |
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| 436 | while (totalSamples < mInitialSamples) {
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| 437 | int passContributingSamples = 0;
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| 438 | int passSampleContributions = 0;
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| 439 | int passSamples = 0;
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| 440 | int index = 0;
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| 441 |
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| 442 | int sampleContributions;
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| 443 |
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| 444 | int s = Min(mSamplesPerPass, mInitialSamples);
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| 445 | for (int k=0; k < s; k++) {
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| 446 |
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| 447 | Vector3 viewpoint = GetViewpoint(mViewSpaceBox);
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| 448 | Vector3 direction = GetDirection(viewpoint, mViewSpaceBox);
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| 449 |
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[452] | 450 | sampleContributions = CastRay(viewpoint, direction, mVssRays);
|
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[447] | 451 |
|
---|
| 452 |
|
---|
| 453 | //-- CORR matt: put block inside loop
|
---|
| 454 | if (sampleContributions) {
|
---|
| 455 | passContributingSamples ++;
|
---|
| 456 | passSampleContributions += sampleContributions;
|
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| 457 | }
|
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| 458 | passSamples++;
|
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| 459 | totalSamples++;
|
---|
| 460 | }
|
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| 461 |
|
---|
| 462 | mPass++;
|
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| 463 |
|
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| 464 | int pvsSize = 0;
|
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| 465 | float avgRayContrib = (passContributingSamples > 0) ?
|
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| 466 | passSampleContributions/(float)passContributingSamples : 0;
|
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| 467 |
|
---|
| 468 | cout << "#Pass " << mPass << " : t = " << TimeDiff(startTime, GetTime())*1e-3 << "s" << endl;
|
---|
| 469 | cout << "#TotalSamples=" << totalSamples/1000
|
---|
| 470 | << "k #SampleContributions=" << passSampleContributions << " ("
|
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| 471 | << 100*passContributingSamples/(float)passSamples<<"%)" << " avgPVS="
|
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| 472 | << pvsSize/(float)mObjects.size() << endl
|
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| 473 | << "avg ray contrib=" << avgRayContrib << endl;
|
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| 474 |
|
---|
| 475 | mStats <<
|
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| 476 | "#Pass\n" <<mPass<<endl<<
|
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| 477 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3 << endl<<
|
---|
| 478 | "#TotalSamples\n" << totalSamples<< endl<<
|
---|
| 479 | "#SampleContributions\n" << passSampleContributions << endl <<
|
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| 480 | "#PContributingSamples\n"<<100*passContributingSamples/(float)passSamples<<endl <<
|
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| 481 | "#AvgPVS\n"<< pvsSize/(float)mObjects.size() << endl <<
|
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| 482 | "#AvgRayContrib\n" << avgRayContrib << endl;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | cout << "#totalPvsSize=" << mKdTree->CollectLeafPvs() << endl;
|
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| 486 | cout << "#totalRayStackSize=" << mVssRays.size() << endl <<flush;
|
---|
| 487 |
|
---|
| 488 |
|
---|
| 489 | if (numExportRays) {
|
---|
| 490 | char filename[64];
|
---|
| 491 | sprintf(filename, "rss-rays-initial.x3d");
|
---|
| 492 | ExportRays(filename, mVssRays, numExportRays);
|
---|
| 493 | }
|
---|
| 494 |
|
---|
[463] | 495 | if (useViewcells)
|
---|
| 496 | // construct view cells
|
---|
| 497 | mViewCellsManager->Construct(mObjects, mVssRays, mViewSpaceBox);
|
---|
[451] | 498 |
|
---|
[447] | 499 | rssTree = new RssTree;
|
---|
| 500 | // viewcells = Construct(mVssRays);
|
---|
| 501 |
|
---|
| 502 | if (fromBoxVisibility)
|
---|
| 503 | rssTree->Construct(mVssRays, mViewSpaceBox);
|
---|
| 504 | else
|
---|
| 505 | rssTree->Construct(mVssRays, NULL);
|
---|
| 506 |
|
---|
| 507 | cout<<"RssTree root PVS size = "<<rssTree->GetRootPvsSize()<<endl;
|
---|
| 508 |
|
---|
[463] | 509 | if (exportRssTree) {
|
---|
| 510 | ExportRssTree("rss-tree-100.x3d", rssTree, Vector3(1,0,0));
|
---|
| 511 | ExportRssTree("rss-tree-001.x3d", rssTree, Vector3(0,0,1));
|
---|
| 512 | ExportRssTree("rss-tree-101.x3d", rssTree, Vector3(1,0,1));
|
---|
| 513 | ExportRssTree("rss-tree-101m.x3d", rssTree, Vector3(-1,0,-1));
|
---|
| 514 | ExportRssTreeLeaves(rssTree, 10);
|
---|
| 515 | }
|
---|
[447] | 516 |
|
---|
[459] | 517 | if (exportPvs) {
|
---|
| 518 | ExportPvs("rss-pvs-initial.x3d", rssTree);
|
---|
| 519 | }
|
---|
| 520 |
|
---|
[447] | 521 | // viewcells->UpdatePVS(newVssRays);
|
---|
| 522 | // get viewcells as kd tree boxes
|
---|
| 523 | vector<AxisAlignedBox3> kdViewcells;
|
---|
| 524 | if (0) {
|
---|
| 525 | vector<KdLeaf *> leaves;
|
---|
| 526 | mKdTree->CollectLeaves(leaves);
|
---|
| 527 | vector<KdLeaf *>::const_iterator it;
|
---|
| 528 | int targetLeaves = 50;
|
---|
| 529 | float prob = targetLeaves/(float)leaves.size();
|
---|
| 530 | for (it = leaves.begin(); it != leaves.end(); ++it)
|
---|
| 531 | if (RandomValue(0.0f,1.0f) < prob)
|
---|
| 532 | kdViewcells.push_back(mKdTree->GetBox(*it));
|
---|
| 533 |
|
---|
| 534 | float avgPvs = GetAvgPvsSize(rssTree, kdViewcells);
|
---|
| 535 | cout<<"Initial average PVS size = "<<avgPvs<<endl;
|
---|
| 536 | }
|
---|
| 537 |
|
---|
| 538 |
|
---|
| 539 | int samples = 0;
|
---|
| 540 | int pass = 0;
|
---|
| 541 | while (1) {
|
---|
| 542 | int num = mRssSamplesPerPass;
|
---|
| 543 | SimpleRayContainer rays;
|
---|
| 544 | VssRayContainer vssRays;
|
---|
| 545 |
|
---|
| 546 | if (!mUseImportanceSampling) {
|
---|
| 547 | for (int j=0; j < num; j++) {
|
---|
| 548 | Vector3 viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
| 549 | Vector3 direction = GetDirection(viewpoint, mViewSpaceBox);
|
---|
| 550 | rays.push_back(SimpleRay(viewpoint, direction));
|
---|
| 551 | }
|
---|
| 552 | } else {
|
---|
| 553 | num = GenerateImportanceRays(rssTree, num, rays);
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 |
|
---|
| 557 | for (int i=0; i < rays.size(); i++)
|
---|
| 558 | CastRay(rays[i].mOrigin, rays[i].mDirection, vssRays);
|
---|
| 559 |
|
---|
| 560 | rssTree->AddRays(vssRays);
|
---|
| 561 |
|
---|
| 562 | if (1) {
|
---|
| 563 | int subdivided = rssTree->UpdateSubdivision();
|
---|
| 564 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
[459] | 565 | cout<<"#total leaves = "<<rssTree->stat.Leaves()<<endl;
|
---|
| 566 |
|
---|
[447] | 567 | }
|
---|
| 568 |
|
---|
[463] | 569 | if (useViewcells) {
|
---|
| 570 | float avgPvs = GetAvgPvsSize(rssTree, kdViewcells);
|
---|
| 571 | cout<<"Average PVS size = "<<avgPvs<<endl;
|
---|
| 572 | }
|
---|
[447] | 573 |
|
---|
| 574 | if (numExportRays) {
|
---|
| 575 | char filename[64];
|
---|
| 576 | if (mUseImportanceSampling)
|
---|
| 577 | sprintf(filename, "rss-rays-i%04d.x3d", pass);
|
---|
| 578 | else
|
---|
| 579 | sprintf(filename, "rss-rays-%04d.x3d", pass);
|
---|
| 580 |
|
---|
| 581 | ExportRays(filename, vssRays, numExportRays);
|
---|
| 582 | }
|
---|
| 583 |
|
---|
[463] | 584 | samples+=num;
|
---|
[451] | 585 |
|
---|
[463] | 586 | if (useViewcells) {
|
---|
| 587 |
|
---|
| 588 | //-- prepare traversal rays for view cell intersections
|
---|
| 589 | RayContainer passRays;
|
---|
| 590 |
|
---|
| 591 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
| 592 |
|
---|
| 593 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[451] | 594 | passRays.push_back(new Ray(*(*it)));
|
---|
[463] | 595 |
|
---|
| 596 | int sampleContributions = 0;
|
---|
| 597 | int contributingSamples = 0;
|
---|
| 598 |
|
---|
| 599 | /// compute view cell contribution of rays
|
---|
| 600 | mViewCellsManager->ComputeSampleContributions(passRays,
|
---|
| 601 | sampleContributions,
|
---|
| 602 | contributingSamples);
|
---|
| 603 |
|
---|
| 604 | //-- save rays for post processing
|
---|
| 605 | if (((int)storedRays.size() < mViewCellsManager->GetPostProcessSamples()) ||
|
---|
| 606 | ((int)storedRays.size() < mViewCellsManager->GetVisualizationSamples()))
|
---|
| 607 | {
|
---|
| 608 | RayContainer::const_iterator it, it_end = passRays.end();
|
---|
| 609 |
|
---|
| 610 | for (it = passRays.begin(); it != it_end; ++ it)
|
---|
[451] | 611 | storedRays.push_back(new Ray(*(*it)));
|
---|
[463] | 612 | }
|
---|
| 613 | else
|
---|
| 614 | {
|
---|
| 615 | CLEAR_CONTAINER(passRays);
|
---|
| 616 | }
|
---|
| 617 |
|
---|
| 618 | float pvs = rssTree->GetAvgPvsSize();
|
---|
| 619 | cout<<"*****************************\n";
|
---|
| 620 | cout<<samples<<" avgPVS ="<<pvs<<endl;
|
---|
| 621 | cout<<"sample contributions ="<<sampleContributions<<endl;
|
---|
| 622 | cout<<"contributing sample ="<<contributingSamples<<endl;
|
---|
| 623 | cout<<"RssTree root PVS size = "<<rssTree->GetRootPvsSize()<<endl;
|
---|
| 624 | cout<<"*****************************\n";
|
---|
[451] | 625 | }
|
---|
[463] | 626 |
|
---|
[447] | 627 | if (exportPvs) {
|
---|
| 628 | char filename[64];
|
---|
| 629 | sprintf(filename, "rss-pvs-%04d.x3d", pass);
|
---|
| 630 | ExportPvs(filename, rssTree);
|
---|
| 631 | }
|
---|
| 632 |
|
---|
| 633 | if (samples >= mRssSamples)
|
---|
| 634 | break;
|
---|
| 635 |
|
---|
| 636 |
|
---|
| 637 | pass++;
|
---|
| 638 | }
|
---|
| 639 |
|
---|
[463] | 640 | if (useViewcells) {
|
---|
| 641 |
|
---|
| 642 | //-- post process view cells
|
---|
| 643 | mViewCellsManager->PostProcess(mObjects, storedRays);
|
---|
| 644 |
|
---|
| 645 | //-- several visualizations and statistics
|
---|
| 646 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 647 |
|
---|
| 648 | //-- render simulation after merge
|
---|
| 649 | cout << "\nevaluating render time of final view cells ... ";
|
---|
| 650 |
|
---|
| 651 | const SimulationStatistics ss = mViewCellsManager->SimulateRendering();
|
---|
| 652 |
|
---|
| 653 | cout << " finished" << endl;
|
---|
| 654 |
|
---|
| 655 | cout << ss << endl;
|
---|
| 656 | Debug << ss << endl;
|
---|
| 657 |
|
---|
| 658 | mViewCellsManager->Visualize(mObjects, storedRays);
|
---|
| 659 | }
|
---|
| 660 |
|
---|
[447] | 661 | delete rssTree;
|
---|
| 662 |
|
---|
| 663 | return true;
|
---|
| 664 | }
|
---|
| 665 |
|
---|