[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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[492] | 13 | #include "GlRenderer.h"
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[447] | 14 |
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[501] | 15 | static bool useViewSpaceBox = true;
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[447] | 16 | static bool use2dSampling = false;
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[516] | 17 |
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| 18 |
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| 19 | // not supported anymore!
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[463] | 20 | static bool fromBoxVisibility = false;
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[447] | 21 |
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[463] | 22 |
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[447] | 23 | RssPreprocessor::RssPreprocessor():
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| 24 | mPass(0),
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| 25 | mVssRays()
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| 26 | {
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| 27 | // this should increase coherence of the samples
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| 28 | environment->GetIntValue("RssPreprocessor.samplesPerPass", mSamplesPerPass);
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| 29 | environment->GetIntValue("RssPreprocessor.initialSamples", mInitialSamples);
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| 30 | environment->GetIntValue("RssPreprocessor.vssSamples", mRssSamples);
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| 31 | environment->GetIntValue("RssPreprocessor.vssSamplesPerPass", mRssSamplesPerPass);
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| 32 | environment->GetBoolValue("RssPreprocessor.useImportanceSampling", mUseImportanceSampling);
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[464] | 33 |
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| 34 | environment->GetBoolValue("RssPreprocessor.Export.pvs", mExportPvs);
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| 35 | environment->GetBoolValue("RssPreprocessor.Export.rssTree", mExportRssTree);
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| 36 | environment->GetBoolValue("RssPreprocessor.Export.rays", mExportRays);
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| 37 | environment->GetIntValue("RssPreprocessor.Export.numRays", mExportNumRays);
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| 38 | environment->GetBoolValue("RssPreprocessor.useViewcells", mUseViewcells);
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[492] | 39 | environment->GetBoolValue("RssPreprocessor.objectBasedSampling", mObjectBasedSampling);
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| 40 | environment->GetBoolValue("RssPreprocessor.directionalSampling", mDirectionalSampling);
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[464] | 41 |
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[490] | 42 | environment->GetBoolValue("RssPreprocessor.loadInitialSamples", mLoadInitialSamples);
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| 43 | environment->GetBoolValue("RssPreprocessor.storeInitialSamples", mStoreInitialSamples);
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[464] | 44 |
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[447] | 45 | mStats.open("stats.log");
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[492] | 46 |
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[447] | 47 | }
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| 48 |
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| 49 | RssPreprocessor::~RssPreprocessor()
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| 50 | {
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[492] | 51 | // mVssRays get deleted in the tree
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| 52 | // CLEAR_CONTAINER(mVssRays);
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[447] | 53 | }
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| 54 |
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| 55 | void
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| 56 | RssPreprocessor::SetupRay(Ray &ray,
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| 57 | const Vector3 &point,
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| 58 | const Vector3 &direction
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| 59 | )
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| 60 | {
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| 61 | ray.intersections.clear();
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| 62 | // do not store anything else then intersections at the ray
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| 63 | ray.Init(point, direction, Ray::LOCAL_RAY);
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| 64 | }
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| 65 |
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| 66 | int
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| 67 | RssPreprocessor::CastRay(
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| 68 | Vector3 &viewPoint,
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| 69 | Vector3 &direction,
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[537] | 70 | const float probability,
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[447] | 71 | VssRayContainer &vssRays
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| 72 | )
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| 73 | {
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| 74 | int hits = 0;
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| 75 | static Ray ray;
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| 76 | AxisAlignedBox3 box = mKdTree->GetBox();
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| 77 |
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| 78 | AxisAlignedBox3 sbox = box;
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| 79 | sbox.Enlarge(Vector3(-Limits::Small));
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| 80 | if (!sbox.IsInside(viewPoint))
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| 81 | return 0;
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| 82 |
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| 83 | SetupRay(ray, viewPoint, direction);
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| 84 | // cast ray to KD tree to find intersection with other objects
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| 85 | Intersectable *objectA, *objectB;
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| 86 | Vector3 pointA, pointB;
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| 87 | float bsize = Magnitude(box.Size());
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[492] | 88 |
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[447] | 89 |
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| 90 | if (mKdTree->CastRay(ray)) {
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| 91 | objectA = ray.intersections[0].mObject;
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| 92 | pointA = ray.Extrap(ray.intersections[0].mT);
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| 93 | } else {
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| 94 | objectA = NULL;
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| 95 | // compute intersection with the scene bounding box
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| 96 | float tmin, tmax;
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[492] | 97 | if (box.ComputeMinMaxT(ray, &tmin, &tmax) && tmin < tmax)
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| 98 | pointA = ray.Extrap(tmax);
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| 99 | else
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| 100 | return 0;
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[447] | 101 | }
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| 102 |
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| 103 | bool detectEmptyViewSpace = true;
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| 104 |
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| 105 | if (detectEmptyViewSpace) {
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| 106 | SetupRay(ray, pointA, -direction);
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| 107 | } else
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| 108 | SetupRay(ray, viewPoint, -direction);
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| 109 |
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| 110 |
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| 111 | if (mKdTree->CastRay(ray)) {
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| 112 | objectB = ray.intersections[0].mObject;
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| 113 | pointB = ray.Extrap(ray.intersections[0].mT);
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| 114 | } else {
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| 115 | objectB = NULL;
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| 116 | float tmin, tmax;
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[492] | 117 | if (box.ComputeMinMaxT(ray, &tmin, &tmax) && tmin < tmax)
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| 118 | pointB = ray.Extrap(tmax);
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| 119 | else
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| 120 | return 0;
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| 121 | }
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| 122 |
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| 123 | // if (objectA == NULL && objectB != NULL) {
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| 124 | if (1) {
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| 125 | // cast again to ensure that there is no objectA
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| 126 | SetupRay(ray, pointB, direction);
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| 127 | if (mKdTree->CastRay(ray)) {
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| 128 | objectA = ray.intersections[0].mObject;
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| 129 | pointA = ray.Extrap(ray.intersections[0].mT);
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[447] | 130 | }
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| 131 | }
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[492] | 132 |
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| 133 |
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[447] | 134 | VssRay *vssRay = NULL;
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| 135 |
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[492] | 136 | bool validSample = (objectA != objectB);
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| 137 | if (0 && detectEmptyViewSpace) { // consider all samples valid
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[447] | 138 | // check if the viewpoint lies on the line segment AB
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| 139 | if (Distance(pointA, pointB) <
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| 140 | Distance(viewPoint, pointA) + Distance(viewPoint, pointB) - Limits::Small) {
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| 141 | validSample = false;
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| 142 | }
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| 143 | }
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| 144 |
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| 145 | if (validSample) {
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| 146 | if (objectA) {
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| 147 | vssRay = new VssRay(pointB,
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| 148 | pointA,
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| 149 | objectB,
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[464] | 150 | objectA,
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[537] | 151 | mPass,
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| 152 | probability
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[464] | 153 | );
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[447] | 154 | vssRays.push_back(vssRay);
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| 155 | hits ++;
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| 156 | }
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| 157 |
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| 158 | if (objectB) {
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| 159 | vssRay = new VssRay(pointA,
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| 160 | pointB,
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| 161 | objectA,
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[464] | 162 | objectB,
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[537] | 163 | mPass,
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| 164 | probability
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[464] | 165 | );
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[447] | 166 | vssRays.push_back(vssRay);
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| 167 | hits ++;
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| 168 | }
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| 169 | }
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| 170 |
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| 171 | return hits;
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| 172 | }
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| 173 |
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| 174 |
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| 175 | Vector3
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| 176 | RssPreprocessor::GetViewpoint(AxisAlignedBox3 *viewSpaceBox)
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| 177 | {
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| 178 | AxisAlignedBox3 box;
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| 179 |
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| 180 | if (viewSpaceBox)
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| 181 | box =*viewSpaceBox;
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| 182 | else
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| 183 | box = mKdTree->GetBox();
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| 184 |
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| 185 | // shrink the box in the y direction
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| 186 | return box.GetRandomPoint();
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| 187 | }
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| 188 |
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| 189 | Vector3
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| 190 | RssPreprocessor::GetDirection(const Vector3 &viewpoint,
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| 191 | AxisAlignedBox3 *viewSpaceBox
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| 192 | )
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| 193 | {
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| 194 | Vector3 point;
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| 195 | if (!use2dSampling) {
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[492] | 196 | if (mObjectBasedSampling) {
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| 197 | Vector3 normal;
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| 198 | int i = RandomValue(0, mObjects.size()-1);
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| 199 | Intersectable *object = mObjects[i];
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| 200 | object->GetRandomSurfacePoint(point, normal);
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| 201 | } else {
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| 202 | // select
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| 203 | if (mDirectionalSampling) {
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| 204 | point = viewpoint + UniformRandomVector();
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| 205 | } else {
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| 206 | // select the other point uniformly distruted in the whole viewspace
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| 207 | AxisAlignedBox3 box;
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| 208 |
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| 209 | if (viewSpaceBox)
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| 210 | box =*viewSpaceBox;
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| 211 | else
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| 212 | box = mKdTree->GetBox();
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| 213 |
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| 214 | point = box.GetRandomPoint();
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| 215 | }
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| 216 | }
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[447] | 217 | } else {
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| 218 | AxisAlignedBox3 box;
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| 219 |
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| 220 | if (viewSpaceBox)
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| 221 | box =*viewSpaceBox;
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| 222 | else
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| 223 | box = mKdTree->GetBox();
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[492] | 224 |
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[447] | 225 | point = box.GetRandomPoint();
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| 226 | point.y = viewpoint.y;
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| 227 | }
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| 228 |
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| 229 | return point - viewpoint;
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| 230 | }
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| 231 |
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[492] | 232 | Vector3
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| 233 | RssPreprocessor::InitialGetDirection(const Vector3 &viewpoint,
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| 234 | AxisAlignedBox3 *viewSpaceBox
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| 235 | )
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| 236 | {
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| 237 | Vector3 point;
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| 238 | if (!use2dSampling) {
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| 239 | if (1 || mObjectBasedSampling) {
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| 240 | Vector3 normal;
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| 241 | int i = RandomValue(0, mObjects.size()-1);
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| 242 | Intersectable *object = mObjects[i];
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| 243 | object->GetRandomSurfacePoint(point, normal);
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| 244 | } else {
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| 245 | // select
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| 246 | if (1 || mDirectionalSampling) {
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| 247 | point = viewpoint + UniformRandomVector();
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| 248 | } else {
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| 249 | // select the other point uniformly distruted in the whole viewspace
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| 250 | AxisAlignedBox3 box;
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| 251 |
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| 252 | if (viewSpaceBox)
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| 253 | box =*viewSpaceBox;
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| 254 | else
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| 255 | box = mKdTree->GetBox();
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| 256 |
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| 257 | point = box.GetRandomPoint();
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| 258 | }
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| 259 | }
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| 260 | } else {
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| 261 | AxisAlignedBox3 box;
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| 262 |
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| 263 | if (viewSpaceBox)
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| 264 | box =*viewSpaceBox;
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| 265 | else
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| 266 | box = mKdTree->GetBox();
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| 267 |
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| 268 | point = box.GetRandomPoint();
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| 269 | point.y = viewpoint.y;
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| 270 | }
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| 271 |
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| 272 | return point - viewpoint;
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| 273 | }
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| 274 |
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[447] | 275 | int
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| 276 | RssPreprocessor::GenerateImportanceRays(RssTree *rssTree,
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| 277 | const int desiredSamples,
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| 278 | SimpleRayContainer &rays
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| 279 | )
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| 280 | {
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| 281 | int num;
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[463] | 282 |
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[492] | 283 | rssTree->UpdateTreeStatistics();
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[463] | 284 |
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[447] | 285 | cout<<
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[492] | 286 | "#RSS_AVG_PVS_SIZE\n"<<rssTree->stat.avgPvsSize<<endl<<
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| 287 | "#RSS_AVG_RAYS\n"<<rssTree->stat.avgRays<<endl<<
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| 288 | "#RSS_AVG_RAY_CONTRIB\n"<<rssTree->stat.avgRayContribution<<endl<<
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| 289 | "#RSS_AVG_PVS_ENTROPY\n"<<rssTree->stat.avgPvsEntropy<<endl<<
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| 290 | "#RSS_AVG_RAY_LENGTH_ENTROPY\n"<<rssTree->stat.avgRayLengthEntropy<<endl<<
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| 291 | "#RSS_AVG_IMPORTANCE\n"<<rssTree->stat.avgImportance<<endl;
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[447] | 292 |
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| 293 | if (0) {
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[492] | 294 | float p = desiredSamples/(float)(rssTree->stat.avgRayContribution*rssTree->stat.Leaves());
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[447] | 295 | num = rssTree->GenerateRays(p, rays);
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| 296 | } else {
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[459] | 297 | int leaves = rssTree->stat.Leaves()/1;
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[447] | 298 | num = rssTree->GenerateRays(desiredSamples, leaves, rays);
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| 299 | }
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| 300 |
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| 301 | cout<<"Generated "<<num<<" rays."<<endl;
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| 302 |
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| 303 | return num;
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| 304 | }
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| 305 |
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| 306 |
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| 307 | bool
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| 308 | RssPreprocessor::ExportRays(const char *filename,
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| 309 | const VssRayContainer &vssRays,
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| 310 | const int number
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| 311 | )
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| 312 | {
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| 313 | cout<<"Exporting vss rays..."<<endl<<flush;
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| 314 |
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| 315 | Exporter *exporter = NULL;
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| 316 | exporter = Exporter::GetExporter(filename);
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| 317 | // exporter->SetWireframe();
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| 318 | // exporter->ExportKdTree(*mKdTree);
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| 319 | exporter->SetFilled();
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| 320 | exporter->ExportScene(mSceneGraph->mRoot);
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| 321 | exporter->SetWireframe();
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| 322 |
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| 323 | if (mViewSpaceBox) {
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| 324 | exporter->SetForcedMaterial(RgbColor(1,0,1));
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| 325 | exporter->ExportBox(*mViewSpaceBox);
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| 326 | exporter->ResetForcedMaterial();
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| 327 | }
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| 328 |
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[492] | 329 | VssRayContainer rays;
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| 330 |
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| 331 | vssRays.SelectRays( number, rays);
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[447] | 332 |
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| 333 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
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| 334 |
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| 335 | delete exporter;
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| 336 |
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| 337 | cout<<"done."<<endl<<flush;
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| 338 |
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| 339 | return true;
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| 340 | }
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| 341 |
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| 342 |
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| 343 | bool
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| 344 | RssPreprocessor::ExportRssTree(char *filename,
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| 345 | RssTree *tree,
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| 346 | const Vector3 &dir
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| 347 | )
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| 348 | {
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| 349 | Exporter *exporter = Exporter::GetExporter(filename);
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| 350 | exporter->SetFilled();
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| 351 | exporter->ExportScene(mSceneGraph->mRoot);
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| 352 | // exporter->SetWireframe();
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| 353 | bool result = exporter->ExportRssTree2( *tree, dir );
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| 354 | delete exporter;
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| 355 | return result;
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| 356 | }
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| 357 |
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| 358 | bool
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| 359 | RssPreprocessor::ExportRssTreeLeaf(char *filename,
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| 360 | RssTree *tree,
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| 361 | RssTreeLeaf *leaf)
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| 362 | {
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| 363 | Exporter *exporter = NULL;
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| 364 | exporter = Exporter::GetExporter(filename);
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| 365 | exporter->SetWireframe();
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| 366 | exporter->ExportKdTree(*mKdTree);
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| 367 |
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| 368 | if (mViewSpaceBox) {
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| 369 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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| 370 | exporter->ExportBox(*mViewSpaceBox);
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| 371 | exporter->ResetForcedMaterial();
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| 372 | }
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| 373 |
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| 374 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 375 | exporter->ExportBox(tree->GetBBox(leaf));
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| 376 | exporter->ResetForcedMaterial();
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| 377 |
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| 378 | VssRayContainer rays[4];
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| 379 | for (int i=0; i < leaf->rays.size(); i++) {
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| 380 | int k = leaf->rays[i].GetRayClass();
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| 381 | rays[k].push_back(leaf->rays[i].mRay);
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| 382 | }
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| 383 |
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| 384 | // SOURCE RAY
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| 385 | exporter->ExportRays(rays[0], RgbColor(1, 0, 0));
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| 386 | // TERMINATION RAY
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| 387 | exporter->ExportRays(rays[1], RgbColor(1, 1, 1));
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| 388 | // PASSING_RAY
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| 389 | exporter->ExportRays(rays[2], RgbColor(1, 1, 0));
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| 390 | // CONTAINED_RAY
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| 391 | exporter->ExportRays(rays[3], RgbColor(0, 0, 1));
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| 392 |
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| 393 | delete exporter;
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| 394 | return true;
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| 395 | }
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| 396 |
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| 397 | void
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| 398 | RssPreprocessor::ExportRssTreeLeaves(RssTree *tree, const int number)
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| 399 | {
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| 400 | vector<RssTreeLeaf *> leaves;
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| 401 | tree->CollectLeaves(leaves);
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| 402 |
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| 403 | int num = 0;
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| 404 | int i;
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| 405 | float p = number / (float)leaves.size();
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| 406 | for (i=0; i < leaves.size(); i++) {
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| 407 | if (RandomValue(0,1) < p) {
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| 408 | char filename[64];
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| 409 | sprintf(filename, "rss-leaf-%04d.x3d", num);
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| 410 | ExportRssTreeLeaf(filename, tree, leaves[i]);
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| 411 | num++;
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| 412 | }
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| 413 | if (num >= number)
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| 414 | break;
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| 415 | }
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| 416 | }
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| 417 |
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| 418 |
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| 419 | float
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| 420 | RssPreprocessor::GetAvgPvsSize(RssTree *tree,
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| 421 | const vector<AxisAlignedBox3> &viewcells
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| 422 | )
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| 423 | {
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| 424 | vector<AxisAlignedBox3>::const_iterator it, it_end = viewcells.end();
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| 425 |
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| 426 | int sum = 0;
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| 427 | for (it = viewcells.begin(); it != it_end; ++ it)
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| 428 | sum += tree->GetPvsSize(*it);
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| 429 |
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| 430 | return sum/(float)viewcells.size();
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| 431 | }
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| 432 |
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| 433 |
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| 434 | void
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| 435 | RssPreprocessor::ExportPvs(char *filename,
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| 436 | RssTree *rssTree
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| 437 | )
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| 438 | {
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| 439 | ObjectContainer pvs;
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| 440 | if (rssTree->CollectRootPvs(pvs)) {
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| 441 | Exporter *exporter = Exporter::GetExporter(filename);
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| 442 | exporter->SetFilled();
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| 443 | exporter->ExportGeometry(pvs);
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[459] | 444 | exporter->SetWireframe();
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| 445 | exporter->ExportBox(rssTree->bbox);
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| 446 | exporter->ExportViewpoint(rssTree->bbox.Center(), Vector3(1,0,0));
|
---|
[447] | 447 | delete exporter;
|
---|
| 448 | }
|
---|
| 449 | }
|
---|
| 450 |
|
---|
[492] | 451 |
|
---|
| 452 | void
|
---|
| 453 | RssPreprocessor::ComputeRenderError()
|
---|
| 454 | {
|
---|
| 455 | // compute rendering error
|
---|
| 456 | if (renderer) {
|
---|
[496] | 457 | // emit EvalPvsStat();
|
---|
| 458 | // QMutex mutex;
|
---|
| 459 | // mutex.lock();
|
---|
| 460 | // renderer->mRenderingFinished.wait(&mutex);
|
---|
| 461 | // mutex.unlock();
|
---|
| 462 | renderer->EvalPvsStat();
|
---|
[492] | 463 | mStats <<
|
---|
| 464 | "#AvgPvsRenderError\n" <<renderer->mPvsStat.GetAvgError()<<endl<<
|
---|
| 465 | "#MaxPvsRenderError\n" <<renderer->mPvsStat.GetMaxError()<<endl<<
|
---|
| 466 | "#ErrorFreeFrames\n" <<renderer->mPvsStat.GetErrorFreeFrames()<<endl;
|
---|
| 467 | }
|
---|
| 468 | }
|
---|
| 469 |
|
---|
[447] | 470 | bool
|
---|
| 471 | RssPreprocessor::ComputeVisibility()
|
---|
| 472 | {
|
---|
[492] | 473 |
|
---|
[496] | 474 | // connect(this, SIGNAL(EvalPvsStat()), renderer, SLOT(EvalPvsStat()) );
|
---|
[492] | 475 |
|
---|
[464] | 476 | cout<<"Rss Preprocessor started\n"<<flush;
|
---|
| 477 | cout<<"Memory/ray "<<sizeof(VssRay)+sizeof(RssTreeNode::RayInfo)<<endl;
|
---|
[492] | 478 |
|
---|
| 479 | Randomize(0);
|
---|
| 480 |
|
---|
[447] | 481 |
|
---|
| 482 | long startTime = GetTime();
|
---|
| 483 |
|
---|
| 484 | int totalSamples = 0;
|
---|
| 485 |
|
---|
| 486 | AxisAlignedBox3 *box = new AxisAlignedBox3(mKdTree->GetBox());
|
---|
| 487 |
|
---|
| 488 | if (fromBoxVisibility) {
|
---|
[459] | 489 | float m = box->Min(1);
|
---|
| 490 | float bsize = box->Size(1);
|
---|
| 491 |
|
---|
| 492 | float size = 0.02f;
|
---|
[447] | 493 | float s = 0.5f - size;
|
---|
| 494 | float olds = Magnitude(box->Size());
|
---|
| 495 | box->Enlarge(box->Size()*Vector3(-s));
|
---|
[459] | 496 | // Vector3 translation = Vector3(-olds*0.2f, 0, 0);
|
---|
[469] | 497 | Vector3 translation = Vector3(-0.05f*olds, 0, 0);
|
---|
[447] | 498 | box->SetMin(box->Min() + translation);
|
---|
| 499 | box->SetMax(box->Max() + translation);
|
---|
[459] | 500 |
|
---|
[469] | 501 | box->SetMin(1, m + bsize*0.1f);
|
---|
| 502 | box->SetMax(1, m + bsize*0.6f);
|
---|
[459] | 503 |
|
---|
| 504 |
|
---|
[447] | 505 | } else {
|
---|
| 506 |
|
---|
| 507 | // sample city like heights
|
---|
[459] | 508 | float m = box->Min(1);
|
---|
| 509 | float bsize = box->Size(1);
|
---|
[469] | 510 | box->SetMin(1, m + bsize*0.2f);
|
---|
| 511 | box->SetMax(1, m + bsize*0.3f);
|
---|
[447] | 512 | }
|
---|
| 513 |
|
---|
| 514 | if (use2dSampling)
|
---|
| 515 | box->SetMax(1, box->Min(1));
|
---|
| 516 |
|
---|
| 517 | if (useViewSpaceBox)
|
---|
[487] | 518 | {
|
---|
[447] | 519 | mViewSpaceBox = box;
|
---|
[487] | 520 | mViewCellsManager->SetViewSpaceBox(*box);
|
---|
| 521 | }
|
---|
[447] | 522 | else
|
---|
[487] | 523 | {
|
---|
[447] | 524 | mViewSpaceBox = NULL;
|
---|
[487] | 525 | mViewCellsManager->SetViewSpaceBox(mKdTree->GetBox());
|
---|
| 526 | }
|
---|
[527] | 527 |
|
---|
| 528 | //-- load view cells from file if requested
|
---|
| 529 | if (mLoadViewCells)
|
---|
| 530 | {
|
---|
| 531 | // load now because otherwise bounding box not correct
|
---|
| 532 | mViewCellsManager->LoadViewCells(mViewCellsFilename, &mObjects);
|
---|
| 533 | }
|
---|
[447] | 534 |
|
---|
| 535 | RssTree *rssTree = NULL;
|
---|
[492] | 536 | int rssPass = 0;
|
---|
| 537 | int rssSamples = 0;
|
---|
[447] | 538 |
|
---|
[492] | 539 | #if 0
|
---|
| 540 | if (mLoadInitialSamples) {
|
---|
| 541 | cout << "Loading samples from file ... ";
|
---|
| 542 | LoadSamples(mVssRays, mObjects);
|
---|
| 543 | cout << "finished\n" << endl;
|
---|
| 544 | } else {
|
---|
| 545 | #endif
|
---|
[490] | 546 | while (totalSamples < mInitialSamples) {
|
---|
[492] | 547 | int passContributingSamples = 0;
|
---|
| 548 | int passSampleContributions = 0;
|
---|
| 549 | int passSamples = 0;
|
---|
| 550 | int index = 0;
|
---|
| 551 |
|
---|
| 552 | int sampleContributions;
|
---|
| 553 |
|
---|
| 554 | //int s = Min(mSamplesPerPass, mInitialSamples);
|
---|
| 555 | int s = mInitialSamples;
|
---|
[537] | 556 |
|
---|
| 557 | float probability = 1.0f/mInitialSamples;
|
---|
[492] | 558 | for (int k=0; k < s; k++) {
|
---|
| 559 |
|
---|
| 560 |
|
---|
[490] | 561 | //Vector3 viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
| 562 | Vector3 viewpoint;
|
---|
[504] | 563 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
| 564 | // viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
[492] | 565 | Vector3 direction = InitialGetDirection(viewpoint, mViewSpaceBox);
|
---|
| 566 |
|
---|
[537] | 567 | sampleContributions = CastRay(viewpoint, direction, probability, mVssRays);
|
---|
[492] | 568 |
|
---|
| 569 |
|
---|
[490] | 570 | //-- CORR matt: put block inside loop
|
---|
| 571 | if (sampleContributions) {
|
---|
[492] | 572 | passContributingSamples ++;
|
---|
| 573 | passSampleContributions += sampleContributions;
|
---|
[490] | 574 | }
|
---|
| 575 | passSamples++;
|
---|
| 576 | totalSamples++;
|
---|
[492] | 577 | }
|
---|
| 578 |
|
---|
| 579 |
|
---|
| 580 | float avgRayContrib = (passContributingSamples > 0) ?
|
---|
[490] | 581 | passSampleContributions/(float)passContributingSamples : 0;
|
---|
[492] | 582 |
|
---|
| 583 | cout << "#Pass " << mPass << " : t = " << TimeDiff(startTime, GetTime())*1e-3 << "s" << endl;
|
---|
| 584 | cout << "#TotalSamples=" << totalSamples/1000
|
---|
| 585 | << "k #SampleContributions=" << passSampleContributions << " ("
|
---|
| 586 | << 100*passContributingSamples/(float)passSamples<<"%)"
|
---|
| 587 | << "avgcontrib=" << avgRayContrib << endl;
|
---|
| 588 |
|
---|
| 589 | mPass++;
|
---|
[490] | 590 | }
|
---|
[492] | 591 |
|
---|
[490] | 592 | cout << "#totalPvsSize=" << mKdTree->CollectLeafPvs() << endl;
|
---|
[492] | 593 | cout << "#totalRayStackSize=" << (int)mVssRays.size() << endl <<flush;
|
---|
| 594 |
|
---|
[508] | 595 | rssSamples += (int)mVssRays.size();
|
---|
[492] | 596 |
|
---|
| 597 |
|
---|
| 598 | if (mExportRays) {
|
---|
| 599 | char filename[64];
|
---|
| 600 | sprintf(filename, "rss-rays-initial.x3d");
|
---|
| 601 | ExportRays(filename, mVssRays, mExportNumRays);
|
---|
| 602 | }
|
---|
| 603 |
|
---|
| 604 | if (mStoreInitialSamples)
|
---|
| 605 | {
|
---|
| 606 | cout << "Writing samples to file ... ";
|
---|
[508] | 607 | ExportSamples(mVssRays);
|
---|
[492] | 608 | cout << "finished\n" << endl;
|
---|
| 609 | }
|
---|
| 610 |
|
---|
| 611 | if (mUseViewcells) {
|
---|
| 612 | // construct view cells
|
---|
[534] | 613 | if (!mLoadViewCells)
|
---|
| 614 | mViewCellsManager->Construct(mObjects, mVssRays);
|
---|
[492] | 615 | // evaluate contributions of the intitial rays
|
---|
| 616 | mViewCellsManager->ComputeSampleContributions(mVssRays);
|
---|
| 617 |
|
---|
| 618 |
|
---|
| 619 | mStats <<
|
---|
| 620 | "#Pass\n" <<mPass<<endl<<
|
---|
| 621 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 622 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3<<endl<<
|
---|
| 623 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 624 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
| 625 |
|
---|
[490] | 626 |
|
---|
[502] | 627 | mVssRays.PrintStatistics(mStats);
|
---|
| 628 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
| 629 |
|
---|
| 630 | VssRayContainer selectedRays;
|
---|
| 631 | int desired = Max(
|
---|
| 632 | mViewCellsManager->GetPostProcessSamples(),
|
---|
| 633 | mViewCellsManager->GetVisualizationSamples());
|
---|
| 634 |
|
---|
| 635 | mVssRays.SelectRays(desired, selectedRays);
|
---|
| 636 |
|
---|
| 637 | //-- post process view cells
|
---|
| 638 | mViewCellsManager->PostProcess(mObjects, selectedRays);
|
---|
| 639 |
|
---|
| 640 | //-- several visualizations and statistics
|
---|
| 641 | Debug << "view cells after post processing: " << endl;
|
---|
| 642 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 643 |
|
---|
| 644 | if (1)
|
---|
| 645 | mViewCellsManager->Visualize(mObjects, selectedRays);
|
---|
[447] | 646 |
|
---|
[502] | 647 | ComputeRenderError();
|
---|
| 648 |
|
---|
| 649 | }
|
---|
[492] | 650 |
|
---|
[447] | 651 |
|
---|
[492] | 652 |
|
---|
| 653 | rssPass++;
|
---|
| 654 |
|
---|
[467] | 655 | rssTree = new RssTree;
|
---|
[492] | 656 | rssTree->SetPass(mPass);
|
---|
| 657 |
|
---|
[527] | 658 | /// compute view cell contribution of rays if view cells manager already constructed
|
---|
| 659 | mViewCellsManager->ComputeSampleContributions(mVssRays);
|
---|
| 660 |
|
---|
[467] | 661 | if (mUseImportanceSampling) {
|
---|
| 662 |
|
---|
[516] | 663 | // if (fromBoxVisibility)
|
---|
| 664 | // rssTree->Construct(mObjects, mVssRays, mViewSpaceBox);
|
---|
| 665 | // else
|
---|
| 666 | rssTree->Construct(mObjects, mVssRays);
|
---|
[492] | 667 |
|
---|
| 668 | rssTree->stat.Print(mStats);
|
---|
[467] | 669 | cout<<"RssTree root PVS size = "<<rssTree->GetRootPvsSize()<<endl;
|
---|
| 670 |
|
---|
| 671 | if (mExportRssTree) {
|
---|
| 672 | ExportRssTree("rss-tree-100.x3d", rssTree, Vector3(1,0,0));
|
---|
| 673 | ExportRssTree("rss-tree-001.x3d", rssTree, Vector3(0,0,1));
|
---|
| 674 | ExportRssTree("rss-tree-101.x3d", rssTree, Vector3(1,0,1));
|
---|
| 675 | ExportRssTree("rss-tree-101m.x3d", rssTree, Vector3(-1,0,-1));
|
---|
| 676 | ExportRssTreeLeaves(rssTree, 10);
|
---|
| 677 | }
|
---|
| 678 |
|
---|
| 679 | if (mExportPvs) {
|
---|
| 680 | ExportPvs("rss-pvs-initial.x3d", rssTree);
|
---|
| 681 | }
|
---|
[459] | 682 | }
|
---|
[467] | 683 |
|
---|
[447] | 684 | // viewcells->UpdatePVS(newVssRays);
|
---|
[466] | 685 |
|
---|
[492] | 686 |
|
---|
[447] | 687 | while (1) {
|
---|
| 688 | int num = mRssSamplesPerPass;
|
---|
| 689 | SimpleRayContainer rays;
|
---|
| 690 | VssRayContainer vssRays;
|
---|
[492] | 691 |
|
---|
| 692 |
|
---|
[447] | 693 | if (!mUseImportanceSampling) {
|
---|
| 694 | for (int j=0; j < num; j++) {
|
---|
[487] | 695 | //changed by matt
|
---|
| 696 | //Vector3 viewpoint = GetViewpoint(mViewSpaceBox);
|
---|
| 697 | Vector3 viewpoint;
|
---|
| 698 | mViewCellsManager->GetViewPoint(viewpoint);
|
---|
[447] | 699 | Vector3 direction = GetDirection(viewpoint, mViewSpaceBox);
|
---|
[537] | 700 | rays.push_back(SimpleRay(viewpoint, direction, 1.0f));
|
---|
| 701 | rays.mSumProbabilities+=1.0f;
|
---|
[447] | 702 | }
|
---|
| 703 | } else {
|
---|
| 704 | num = GenerateImportanceRays(rssTree, num, rays);
|
---|
| 705 | }
|
---|
[537] | 706 |
|
---|
| 707 | rays.NormalizeProbabilities();
|
---|
| 708 |
|
---|
[447] | 709 | for (int i=0; i < rays.size(); i++)
|
---|
[537] | 710 | CastRay(rays[i].mOrigin, rays[i].mDirection, rays[i].mProbability, vssRays);
|
---|
[467] | 711 |
|
---|
[466] | 712 |
|
---|
[503] | 713 | totalSamples += (int)rays.size();
|
---|
| 714 | rssSamples += (int)vssRays.size();
|
---|
[467] | 715 |
|
---|
[492] | 716 |
|
---|
| 717 |
|
---|
[467] | 718 | mStats <<
|
---|
| 719 | "#Pass\n" <<mPass<<endl<<
|
---|
| 720 | "#RssPass\n" <<rssPass<<endl<<
|
---|
| 721 | "#Time\n" << TimeDiff(startTime, GetTime())*1e-3<<endl<<
|
---|
| 722 | "#TotalSamples\n" <<totalSamples<<endl<<
|
---|
| 723 | "#RssSamples\n" <<rssSamples<<endl;
|
---|
| 724 |
|
---|
[492] | 725 |
|
---|
[466] | 726 | if (mUseViewcells) {
|
---|
| 727 |
|
---|
| 728 | /// compute view cell contribution of rays
|
---|
[467] | 729 | mViewCellsManager->ComputeSampleContributions(vssRays);
|
---|
[466] | 730 |
|
---|
[467] | 731 | vssRays.PrintStatistics(mStats);
|
---|
| 732 | mViewCellsManager->PrintPvsStatistics(mStats);
|
---|
[466] | 733 | }
|
---|
| 734 |
|
---|
[492] | 735 |
|
---|
| 736 | ComputeRenderError();
|
---|
| 737 |
|
---|
| 738 | // epxort rays before adding them to the tree -> some of them can be deleted
|
---|
| 739 |
|
---|
| 740 | if (mExportRays) {
|
---|
| 741 | char filename[64];
|
---|
| 742 | if (mUseImportanceSampling)
|
---|
| 743 | sprintf(filename, "rss-rays-i%04d.x3d", rssPass);
|
---|
| 744 | else
|
---|
| 745 | sprintf(filename, "rss-rays-%04d.x3d", rssPass);
|
---|
| 746 |
|
---|
| 747 | ExportRays(filename, vssRays, mExportNumRays);
|
---|
| 748 |
|
---|
| 749 | // now export all contributing rays
|
---|
| 750 | VssRayContainer contributingRays;
|
---|
| 751 | vssRays.GetContributingRays(contributingRays, mPass);
|
---|
[508] | 752 | mStats<<"#NUM_CONTRIBUTING_RAYS\n"<<(int)contributingRays.size()<<endl;
|
---|
[492] | 753 | sprintf(filename, "rss-crays-%04d.x3d", rssPass);
|
---|
| 754 | ExportRays(filename, contributingRays, mExportNumRays);
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 |
|
---|
[467] | 758 | // add rays to the tree after the viewcells have been cast to have their contributions
|
---|
| 759 | // already when adding into the tree
|
---|
| 760 | // do not add those rays which have too low or no contribution....
|
---|
[466] | 761 |
|
---|
[467] | 762 | if (mUseImportanceSampling) {
|
---|
| 763 | rssTree->AddRays(vssRays);
|
---|
| 764 |
|
---|
| 765 | if (0) {
|
---|
| 766 | cout<<"############# Rss PVS STAT ##################\n";
|
---|
| 767 | cout<<"#AVG_RSS_PVS\n"<<rssTree->GetAvgPvsSize()<<endl;
|
---|
| 768 | cout<<"#RSS_ROOT_PVS\n"<<rssTree->GetRootPvsSize()<<endl;
|
---|
| 769 | }
|
---|
| 770 |
|
---|
[492] | 771 |
|
---|
[467] | 772 | if (mUpdateSubdivision) {
|
---|
[492] | 773 | int updatePasses = 1;
|
---|
| 774 | if (mPass % updatePasses == 0) {
|
---|
| 775 | int subdivided = rssTree->UpdateSubdivision();
|
---|
| 776 | cout<<"subdivided leafs = "<<subdivided<<endl;
|
---|
| 777 | cout<<"#total leaves = "<<rssTree->stat.Leaves()<<endl;
|
---|
| 778 | }
|
---|
[467] | 779 | }
|
---|
[447] | 780 | }
|
---|
[467] | 781 |
|
---|
[447] | 782 |
|
---|
[463] | 783 |
|
---|
[464] | 784 | if (mExportPvs) {
|
---|
[447] | 785 | char filename[64];
|
---|
[467] | 786 | sprintf(filename, "rss-pvs-%04d.x3d", rssPass);
|
---|
[447] | 787 | ExportPvs(filename, rssTree);
|
---|
| 788 | }
|
---|
| 789 |
|
---|
[492] | 790 |
|
---|
| 791 | if (!mUseImportanceSampling)
|
---|
| 792 | CLEAR_CONTAINER(vssRays);
|
---|
| 793 |
|
---|
[467] | 794 | if (totalSamples >= mRssSamples + mInitialSamples)
|
---|
[447] | 795 | break;
|
---|
| 796 |
|
---|
| 797 |
|
---|
[467] | 798 | rssPass++;
|
---|
| 799 | mPass++;
|
---|
[492] | 800 | rssTree->SetPass(mPass);
|
---|
[447] | 801 | }
|
---|
| 802 |
|
---|
[464] | 803 | if (mUseViewcells) {
|
---|
[466] | 804 |
|
---|
| 805 |
|
---|
| 806 | //-- render simulation after merge
|
---|
| 807 | cout << "\nevaluating bsp view cells render time after merge ... ";
|
---|
[463] | 808 |
|
---|
[468] | 809 | mRenderSimulator->RenderScene();
|
---|
| 810 | SimulationStatistics ss;
|
---|
| 811 | mRenderSimulator->GetStatistics(ss);
|
---|
| 812 |
|
---|
[466] | 813 | cout << " finished" << endl;
|
---|
| 814 | cout << ss << endl;
|
---|
| 815 | Debug << ss << endl;
|
---|
| 816 |
|
---|
| 817 | }
|
---|
| 818 |
|
---|
[447] | 819 | delete rssTree;
|
---|
| 820 |
|
---|
| 821 | return true;
|
---|
| 822 | }
|
---|
| 823 |
|
---|