[372] | 1 | #include "SceneGraph.h"
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| 2 | #include "Exporter.h"
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| 3 | #include "UnigraphicsParser.h"
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| 4 | #include "X3dParser.h"
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| 5 | #include "Preprocessor.h"
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| 6 | #include "ViewCell.h"
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| 7 | #include "Environment.h"
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[439] | 8 | #include "ViewCellsManager.h"
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[445] | 9 | #include "ViewCellBsp.h"
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| 10 | #include "VspBspTree.h"
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[469] | 11 | #include "RenderSimulator.h"
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[496] | 12 | #include "GlRenderer.h"
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[749] | 13 | #include "PlyParser.h"
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[1020] | 14 | #include "SamplingStrategy.h"
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[1233] | 15 | #include "VspTree.h"
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| 16 | #include "OspTree.h"
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[1221] | 17 | #include "ObjParser.h"
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[1264] | 18 | #include "BvHierarchy.h"
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[1279] | 19 | #include "HierarchyManager.h"
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[1287] | 20 | #include "VssRay.h"
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[1520] | 21 | #include "IntelRayCaster.h"
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| 22 | #include "InternalRayCaster.h"
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[1264] | 23 |
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[1287] | 24 |
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[372] | 25 |
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[1292] | 26 | #define DEBUG_RAYCAST 0
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[1584] | 27 | #define SHOW_RAYCAST_TIMING 1
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[1292] | 28 |
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| 29 |
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[863] | 30 | namespace GtpVisibilityPreprocessor {
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[860] | 31 |
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[1020] | 32 | const static bool ADDITIONAL_GEOMETRY_HACK = false;
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[860] | 33 |
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[492] | 34 |
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[1001] | 35 | // HACK: Artificially modify scene to watch rendercost changes
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[750] | 36 | static void AddGeometry(SceneGraph *scene)
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| 37 | {
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[1328] | 38 | scene->GetRoot()->UpdateBox();
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[752] | 39 |
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[750] | 40 | AxisAlignedBox3 sceneBox = scene->GetBox();
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| 41 |
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| 42 | int n = 200;
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| 43 |
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[1291] | 44 | if (0)
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[750] | 45 | {
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[1291] | 46 | // form grid of boxes
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| 47 | for (int i = 0; i < n; ++ i)
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[750] | 48 | {
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[1291] | 49 | for (int j = 0; j < n; ++ j)
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| 50 | {
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| 51 | const Vector3 scale2((float)j * 0.8f / n + 0.1f, 0.05f, (float)i * 0.8f / (float)n + 0.1f);
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[750] | 52 |
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[1291] | 53 | const Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 54 |
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| 55 | const Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 56 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 57 | Mesh *mesh = CreateMeshFromBox(box);
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| 58 |
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| 59 | mesh->Preprocess();
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| 60 |
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| 61 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 62 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 63 | }
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[750] | 64 | }
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| 65 |
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[1291] | 66 | for (int i = 0; i < n; ++ i)
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[750] | 67 | {
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[1291] | 68 | for (int j = 0; j < n; ++ j)
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| 69 | {
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| 70 | const Vector3 scale2(0.15f, (float)j * 0.8f / n + 0.1f, (float)i * 0.8f / (float)n + 0.1f);
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| 71 |
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| 72 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 73 |
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| 74 | Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 75 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 76 | Mesh *mesh = CreateMeshFromBox(box);
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| 77 |
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| 78 | mesh->Preprocess();
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| 79 |
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| 80 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 81 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 82 | }
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| 83 | }
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| 84 |
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| 85 | for (int i = 0; i < n; ++ i)
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| 86 | {
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| 87 | const Vector3 scale2(2, 0.2f, (float)i * 0.8f / (float)n + 0.1f);
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| 88 |
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[750] | 89 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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[1291] | 90 |
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| 91 | //Vector3 boxSize = sceneBox.Size() * Vector3(0.0025, 0.01, 0.0025);
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| 92 | Vector3 boxSize = sceneBox.Size() * Vector3(0.005f, 0.02f, 0.005f);
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| 93 |
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| 94 | AxisAlignedBox3 box(pt2 + 0.1f, pt2 + boxSize);
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[991] | 95 | Mesh *mesh = CreateMeshFromBox(box);
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[750] | 96 |
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| 97 | mesh->Preprocess();
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[1291] | 98 |
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[750] | 99 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 100 | scene->GetRoot()->mGeometry.push_back(mi);
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[750] | 101 | }
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[1291] | 102 |
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[1328] | 103 | scene->GetRoot()->UpdateBox();
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[750] | 104 | }
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| 105 |
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[840] | 106 | if (1)
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| 107 | {
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[1221] | 108 | // plane separating view space regions
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[1135] | 109 | const Vector3 scale(1.0f, 0.0, 0);
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[750] | 110 |
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[840] | 111 | Vector3 pt = sceneBox.Min() + scale * (sceneBox.Max() - sceneBox.Min());
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[750] | 112 |
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[840] | 113 | Plane3 cuttingPlane(Vector3(1, 0, 0), pt);
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| 114 | Mesh *planeMesh = new Mesh();
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[1291] | 115 |
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[840] | 116 | Polygon3 *poly = sceneBox.CrossSection(cuttingPlane);
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| 117 | IncludePolyInMesh(*poly, *planeMesh);
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[1291] | 118 |
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[840] | 119 | planeMesh->Preprocess();
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[1291] | 120 |
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[840] | 121 | MeshInstance *planeMi = new MeshInstance(planeMesh);
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[1328] | 122 | scene->GetRoot()->mGeometry.push_back(planeMi);
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[840] | 123 | }
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[750] | 124 | }
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| 125 |
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| 126 |
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[372] | 127 | Preprocessor::Preprocessor():
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| 128 | mKdTree(NULL),
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[409] | 129 | mBspTree(NULL),
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[445] | 130 | mVspBspTree(NULL),
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[1279] | 131 | mHierarchyManager(NULL),
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[1002] | 132 | mViewCellsManager(NULL),
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[1251] | 133 | mRenderSimulator(NULL),
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[1279] | 134 | mPass(0),
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[1520] | 135 | mSceneGraph(NULL),
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[1613] | 136 | mRayCaster(NULL),
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| 137 | mStopComputation(false)
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[308] | 138 | {
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[1004] | 139 | Environment::GetSingleton()->GetBoolValue("Preprocessor.useGlRenderer", mUseGlRenderer);
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[538] | 140 |
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[840] | 141 | // renderer will be constructed when the scene graph and viewcell manager will be known
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| 142 | renderer = NULL;
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[496] | 143 |
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[1613] | 144 | Environment::GetSingleton()->GetBoolValue("Preprocessor.delayVisibilityComputation",
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| 145 | mDelayVisibilityComputation);
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| 146 |
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[1004] | 147 | Environment::GetSingleton()->GetBoolValue("Preprocessor.useGlDebugger", mUseGlDebugger);
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[1379] | 148 | Environment::GetSingleton()->GetBoolValue("Preprocessor.loadMeshes", mLoadMeshes);
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[1004] | 149 | Environment::GetSingleton()->GetBoolValue("Preprocessor.quitOnFinish", mQuitOnFinish);
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| 150 | Environment::GetSingleton()->GetBoolValue("Preprocessor.computeVisibility", mComputeVisibility);
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| 151 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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| 152 | Environment::GetSingleton()->GetBoolValue("Preprocessor.exportVisibility", mExportVisibility );
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[1520] | 153 |
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[871] | 154 | char buffer[256];
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[1004] | 155 | Environment::GetSingleton()->GetStringValue("Preprocessor.visibilityFile", buffer);
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[1415] | 156 |
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[871] | 157 | mVisibilityFileName = buffer;
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[1004] | 158 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilityFilter", mApplyVisibilityFilter );
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| 159 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilitySpatialFilter",
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[904] | 160 | mApplyVisibilitySpatialFilter );
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[1004] | 161 | Environment::GetSingleton()->GetFloatValue("Preprocessor.visibilityFilterWidth", mVisibilityFilterWidth);
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[878] | 162 |
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[840] | 163 | Debug << "detect empty view space=" << mDetectEmptyViewSpace << endl;
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[1379] | 164 | Debug << "load meshes: " << mLoadMeshes << endl;
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[372] | 165 | }
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| 166 |
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| 167 |
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| 168 | Preprocessor::~Preprocessor()
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| 169 | {
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[1291] | 170 | cout << "cleaning up" << endl;
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[752] | 171 |
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[1291] | 172 | cout << "Deleting view cells manager ... \n";
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| 173 | DEL_PTR(mViewCellsManager);
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| 174 | cout << "done.\n";
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[752] | 175 |
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[1291] | 176 | cout << "Deleting bsp tree ... \n";
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| 177 | DEL_PTR(mBspTree);
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| 178 | cout << "done.\n";
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[752] | 179 |
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[1291] | 180 | cout << "Deleting kd tree...\n";
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| 181 | DEL_PTR(mKdTree);
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| 182 | cout << "done.\n";
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[752] | 183 |
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[1291] | 184 | cout << "Deleting hierarchy manager...\n";
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| 185 | DEL_PTR(mHierarchyManager);
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| 186 | cout << "done.\n";
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[1002] | 187 |
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[1291] | 188 | cout << "Deleting vspbsp tree...\n";
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| 189 | DEL_PTR(mVspBspTree);
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| 190 | cout << "done.\n";
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[1002] | 191 |
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[1291] | 192 | cout << "Deleting scene graph...\n";
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| 193 | DEL_PTR(mSceneGraph);
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| 194 | cout << "done.\n";
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| 195 |
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| 196 | DEL_PTR(mRenderSimulator);
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| 197 | DEL_PTR(renderer);
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[1523] | 198 | DEL_PTR(mRayCaster);
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[372] | 199 | }
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| 200 |
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[1521] | 201 |
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| 202 | GlRendererBuffer *Preprocessor::GetRenderer()
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| 203 | {
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| 204 | return renderer;
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| 205 | }
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| 206 |
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| 207 |
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| 208 | static int SplitFilenames(const string str, vector<string> &filenames)
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[387] | 209 | {
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| 210 | int pos = 0;
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| 211 |
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| 212 | while(1) {
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[469] | 213 | int npos = (int)str.find(';', pos);
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[387] | 214 |
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| 215 | if (npos < 0 || npos - pos < 1)
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| 216 | break;
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| 217 | filenames.push_back(string(str, pos, npos - pos));
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| 218 | pos = npos + 1;
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| 219 | }
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| 220 |
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| 221 | filenames.push_back(string(str, pos, str.size() - pos));
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[440] | 222 | return (int)filenames.size();
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[387] | 223 | }
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| 224 |
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[750] | 225 |
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[1655] | 226 | bool Preprocessor::LoadBinaryObj(const string filename,
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| 227 | SceneGraphNode *root,
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| 228 | vector<FaceParentInfo> *parents)
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| 229 | {
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[1658] | 230 | //ifstream samplesIn(filename, ios::binary);
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| 231 | igzstream samplesIn(filename.c_str());
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| 232 |
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[1655] | 233 | if (!samplesIn.is_open())
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| 234 | return false;
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| 235 |
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[1658] | 236 | cout << "binary obj dump available, loading " << filename.c_str() << endl;
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[1655] | 237 | // table associating indices with vectors
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| 238 | map<int, Vector3> hashTable;
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[1658] | 239 |
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[1655] | 240 | // table for vertices
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| 241 | VertexContainer vertices;
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| 242 | FaceContainer faces;
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| 243 |
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| 244 | while (1)
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| 245 | {
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| 246 | Triangle3 tri;
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| 247 |
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| 248 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 0), sizeof(Vector3));
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| 249 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 1), sizeof(Vector3));
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| 250 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 2), sizeof(Vector3));
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| 251 |
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| 252 | // end of file reached
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| 253 | if (samplesIn.eof())
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| 254 | break;
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| 255 |
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| 256 | TriangleIntersectable *obj = new TriangleIntersectable(tri);
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| 257 | root->mGeometry.push_back(obj);
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| 258 |
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| 259 | // matt: we don't really need to keep an additional data structure
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| 260 | // if working with triangles => remove this
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| 261 | if (parents)
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| 262 | {
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| 263 | FaceParentInfo info(obj, 0);
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| 264 | parents->push_back(info);
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| 265 | }
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| 266 | }
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| 267 |
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| 268 | return true;
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| 269 | }
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| 270 |
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| 271 |
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[1658] | 272 | bool Preprocessor::ExportBinaryObj(const string filename, SceneGraphNode *root)
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| 273 | {
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| 274 | //ifstream samplesIn(filename, ios::binary);
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| 275 | ogzstream samplesOut(filename.c_str());
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| 276 | if (!samplesOut.is_open())
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| 277 | return false;
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| 278 |
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| 279 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
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| 280 |
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| 281 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
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| 282 | {
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| 283 | Intersectable *obj = *oit;
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| 284 |
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| 285 | if (obj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
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| 286 | {
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| 287 | Triangle3 tri = dynamic_cast<TriangleIntersectable *>(obj)->GetItem();
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| 288 |
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| 289 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 0), sizeof(Vector3));
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| 290 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 1), sizeof(Vector3));
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| 291 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 2), sizeof(Vector3));
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| 292 | }
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| 293 | else
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| 294 | {
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| 295 | cout << "not implemented intersectable type " << obj->Type() << endl;
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| 296 | }
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| 297 | }
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| 298 |
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| 299 | return true;
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| 300 | }
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| 301 |
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| 302 | static string ReplaceSuffix(string filename, string a, string b)
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| 303 | {
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| 304 | string result = filename;
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| 305 |
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| 306 | int pos = (int)filename.rfind(a, (int)filename.size() - 1);
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| 307 | if (pos == filename.size() - a.size()) {
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| 308 | result.replace(pos, a.size(), b);
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| 309 | }
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| 310 | return result;
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| 311 | }
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| 312 |
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| 313 |
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[372] | 314 | bool
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| 315 | Preprocessor::LoadScene(const string filename)
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| 316 | {
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[1655] | 317 | // use leaf nodes of the original spatial hierarchy as occludees
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[508] | 318 | mSceneGraph = new SceneGraph;
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[372] | 319 |
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[508] | 320 | Parser *parser;
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[387] | 321 | vector<string> filenames;
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[1404] | 322 | const int files = SplitFilenames(filename, filenames);
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[712] | 323 | cout << "number of input files: " << files << endl;
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[387] | 324 | bool result = false;
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[1344] | 325 |
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| 326 | // root for different files
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| 327 | mSceneGraph->SetRoot(new SceneGraphNode());
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| 328 |
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[1404] | 329 | // intel ray caster can only trace triangles
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[1520] | 330 | int rayCastMethod;
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| 331 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
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| 332 | vector<FaceParentInfo> *fi = (rayCastMethod == RayCaster::INTEL_RAYCASTER) ?
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[1404] | 333 | &mFaceParents : NULL;
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| 334 |
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[1658] | 335 | if (files == 1)
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| 336 | {
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[387] | 337 | if (strstr(filename.c_str(), ".x3d"))
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[1655] | 338 | {
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| 339 | parser = new X3dParser;
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[1658] | 340 |
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| 341 | result = parser->ParseFile(filename,
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| 342 | mSceneGraph->GetRoot(),
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| 343 | mLoadMeshes,
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| 344 | fi);
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| 345 | delete parser;
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[1655] | 346 | }
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[1658] | 347 | else if (strstr(filename.c_str(), ".ply") || strstr(filename.c_str(), ".plb"))
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[1655] | 348 | {
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[1658] | 349 | parser = new PlyParser;
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[1655] | 350 |
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[1658] | 351 | result = parser->ParseFile(filename,
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| 352 | mSceneGraph->GetRoot(),
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| 353 | mLoadMeshes,
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| 354 | fi);
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| 355 | delete parser;
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[1655] | 356 | }
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[1658] | 357 | else if (strstr(filename.c_str(), ".obj"))
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| 358 | {
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| 359 | // hack: load binary dump
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| 360 | string binFile = ReplaceSuffix(filename, ".obj", ".bin");
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[372] | 361 |
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[1658] | 362 | if (!mLoadMeshes)
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| 363 | {
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| 364 | result = LoadBinaryObj(binFile, mSceneGraph->GetRoot(), fi);
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| 365 | }
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| 366 |
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| 367 | if (!result)
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| 368 | {
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| 369 | cout << "no binary dump available or loading full meshes, parsing file" << endl;
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| 370 | parser = new ObjParser;
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[1404] | 371 |
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[1658] | 372 | result = parser->ParseFile(filename,
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[1655] | 373 | mSceneGraph->GetRoot(),
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| 374 | mLoadMeshes,
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| 375 | fi);
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[1658] | 376 |
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| 377 | // only works for triangles
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| 378 | if (!mLoadMeshes)
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| 379 | {
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| 380 | cout << "exporting binary obj to " << binFile << "... " << endl;
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| 381 | ExportBinaryObj(binFile, mSceneGraph->GetRoot());
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| 382 | cout << "finished" << endl;
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| 383 | }
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[1655] | 384 |
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[1658] | 385 | delete parser;
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| 386 | }
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[1660] | 387 | else if (0)
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[1658] | 388 | {
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| 389 | ExportBinaryObj("../data/test.bin", mSceneGraph->GetRoot());
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| 390 | }
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| 391 | }
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| 392 | else
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| 393 | {
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| 394 | parser = new UnigraphicsParser;
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| 395 | result = parser->ParseFile(filename,
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| 396 | mSceneGraph->GetRoot(),
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| 397 | mLoadMeshes,
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| 398 | fi);
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| 399 | delete parser;
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| 400 | }
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| 401 |
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| 402 | cout << filename << endl;
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[1404] | 403 | }
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[1658] | 404 | else
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| 405 | {
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[1404] | 406 | vector<string>::const_iterator fit, fit_end = filenames.end();
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[1344] | 407 |
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[1404] | 408 | for (fit = filenames.begin(); fit != fit_end; ++ fit)
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| 409 | {
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| 410 | const string filename = *fit;
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[1328] | 411 |
|
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[1404] | 412 | cout << "parsing file " << filename.c_str() << endl;
|
---|
| 413 | if (strstr(filename.c_str(), ".x3d"))
|
---|
| 414 | parser = new X3dParser;
|
---|
| 415 | else
|
---|
| 416 | parser = new UnigraphicsParser;
|
---|
| 417 |
|
---|
| 418 | SceneGraphNode *node = new SceneGraphNode();
|
---|
| 419 | const bool success = parser->ParseFile(
|
---|
| 420 | filename,
|
---|
| 421 | node,
|
---|
| 422 | mLoadMeshes,
|
---|
| 423 | fi);
|
---|
| 424 |
|
---|
| 425 | if (success)
|
---|
| 426 | {
|
---|
| 427 | mSceneGraph->GetRoot()->mChildren.push_back(node);
|
---|
| 428 | result = true; // at least one file parsed
|
---|
| 429 | }
|
---|
| 430 |
|
---|
| 431 | delete parser;
|
---|
[387] | 432 | }
|
---|
| 433 | }
|
---|
[1344] | 434 |
|
---|
[752] | 435 | if (result)
|
---|
[1344] | 436 | {
|
---|
[752] | 437 | // HACK
|
---|
[1020] | 438 | if (ADDITIONAL_GEOMETRY_HACK)
|
---|
| 439 | AddGeometry(mSceneGraph);
|
---|
[1328] | 440 |
|
---|
[1020] | 441 | mSceneGraph->AssignObjectIds();
|
---|
[1344] | 442 |
|
---|
[1020] | 443 | int intersectables, faces;
|
---|
| 444 | mSceneGraph->GetStatistics(intersectables, faces);
|
---|
[1344] | 445 |
|
---|
[1020] | 446 | cout<<filename<<" parsed successfully."<<endl;
|
---|
| 447 | cout<<"#NUM_OBJECTS (Total numner of objects)\n"<<intersectables<<endl;
|
---|
| 448 | cout<<"#NUM_FACES (Total numner of faces)\n"<<faces<<endl;
|
---|
| 449 | mSceneGraph->CollectObjects(&mObjects);
|
---|
[1328] | 450 | mSceneGraph->GetRoot()->UpdateBox();
|
---|
[1344] | 451 |
|
---|
[1020] | 452 | if (0)
|
---|
| 453 | {
|
---|
| 454 | Exporter *exporter = Exporter::GetExporter("testload.x3d");
|
---|
| 455 | if (exporter)
|
---|
| 456 | {
|
---|
| 457 | exporter->ExportGeometry(mObjects);
|
---|
| 458 | delete exporter;
|
---|
| 459 | }
|
---|
| 460 | }
|
---|
[387] | 461 | }
|
---|
[1328] | 462 |
|
---|
[492] | 463 | return result;
|
---|
[372] | 464 | }
|
---|
| 465 |
|
---|
| 466 | bool
|
---|
| 467 | Preprocessor::ExportPreprocessedData(const string filename)
|
---|
| 468 | {
|
---|
[1486] | 469 | mViewCellsManager->ExportViewCells(filename, true, mObjects);
|
---|
| 470 | return true;
|
---|
[372] | 471 | }
|
---|
| 472 |
|
---|
[1486] | 473 |
|
---|
[372] | 474 | bool
|
---|
[871] | 475 | Preprocessor::PostProcessVisibility()
|
---|
| 476 | {
|
---|
| 477 |
|
---|
[904] | 478 | if (mApplyVisibilityFilter || mApplyVisibilitySpatialFilter) {
|
---|
[997] | 479 | cout<<"Applying visibility filter ...";
|
---|
[1002] | 480 | cout<<"filter width = " << mVisibilityFilterWidth << endl;
|
---|
[904] | 481 |
|
---|
[1002] | 482 | if (!mViewCellsManager)
|
---|
[1199] | 483 | return false;
|
---|
| 484 |
|
---|
[871] | 485 | mViewCellsManager->ApplyFilter(mKdTree,
|
---|
[904] | 486 | mApplyVisibilityFilter ? mVisibilityFilterWidth : -1.0f,
|
---|
| 487 | mApplyVisibilitySpatialFilter ? mVisibilityFilterWidth : -1.0f);
|
---|
[997] | 488 | cout << "done." << endl;
|
---|
[871] | 489 | }
|
---|
| 490 |
|
---|
| 491 | // export the preprocessed information to a file
|
---|
| 492 | if (mExportVisibility)
|
---|
[1486] | 493 | {
|
---|
| 494 | ExportPreprocessedData(mVisibilityFileName);
|
---|
| 495 | }
|
---|
| 496 |
|
---|
[871] | 497 | return true;
|
---|
| 498 | }
|
---|
| 499 |
|
---|
| 500 |
|
---|
| 501 | bool
|
---|
[372] | 502 | Preprocessor::BuildKdTree()
|
---|
| 503 | {
|
---|
| 504 | mKdTree = new KdTree;
|
---|
[1344] | 505 |
|
---|
[372] | 506 | // add mesh instances of the scene graph to the root of the tree
|
---|
| 507 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot();
|
---|
[1344] | 508 |
|
---|
[372] | 509 | mSceneGraph->CollectObjects(&root->mObjects);
|
---|
[1344] | 510 |
|
---|
[1415] | 511 | const long startTime = GetTime();
|
---|
[1201] | 512 | cout << "building kd tree ... " << endl;
|
---|
[1344] | 513 |
|
---|
[372] | 514 | mKdTree->Construct();
|
---|
[1344] | 515 |
|
---|
[1415] | 516 | cout << "finished kd tree construction in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 517 | << " secs " << endl;
|
---|
[1344] | 518 |
|
---|
[372] | 519 | return true;
|
---|
| 520 | }
|
---|
| 521 |
|
---|
[1415] | 522 |
|
---|
[372] | 523 | void
|
---|
| 524 | Preprocessor::KdTreeStatistics(ostream &s)
|
---|
| 525 | {
|
---|
| 526 | s<<mKdTree->GetStatistics();
|
---|
| 527 | }
|
---|
| 528 |
|
---|
| 529 | void
|
---|
| 530 | Preprocessor::BspTreeStatistics(ostream &s)
|
---|
| 531 | {
|
---|
| 532 | s << mBspTree->GetStatistics();
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | bool
|
---|
| 536 | Preprocessor::Export( const string filename,
|
---|
[492] | 537 | const bool scene,
|
---|
[1545] | 538 | const bool kdtree
|
---|
[492] | 539 | )
|
---|
[372] | 540 | {
|
---|
| 541 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
| 542 |
|
---|
| 543 | if (exporter) {
|
---|
[1545] | 544 | if (2 && scene)
|
---|
[1328] | 545 | exporter->ExportScene(mSceneGraph->GetRoot());
|
---|
[372] | 546 |
|
---|
[1545] | 547 | if (1 && kdtree) {
|
---|
[372] | 548 | exporter->SetWireframe();
|
---|
| 549 | exporter->ExportKdTree(*mKdTree);
|
---|
| 550 | }
|
---|
| 551 |
|
---|
| 552 | delete exporter;
|
---|
| 553 | return true;
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 | return false;
|
---|
| 557 | }
|
---|
[429] | 558 |
|
---|
[508] | 559 |
|
---|
[463] | 560 | bool Preprocessor::PrepareViewCells()
|
---|
| 561 | {
|
---|
[1523] | 562 | ///////
|
---|
[577] | 563 | //-- parse view cells construction method
|
---|
[1563] | 564 |
|
---|
[1004] | 565 | Environment::GetSingleton()->GetBoolValue("ViewCells.loadFromFile", mLoadViewCells);
|
---|
[577] | 566 | char buf[100];
|
---|
[1585] | 567 |
|
---|
[577] | 568 | if (mLoadViewCells)
|
---|
[997] | 569 | {
|
---|
[1581] | 570 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", buf);
|
---|
| 571 | cout << "loading view cells from " << buf << endl;
|
---|
| 572 |
|
---|
[1593] | 573 | mViewCellsManager = ViewCellsManager::LoadViewCells(buf, &mObjects, true, NULL);
|
---|
[1581] | 574 |
|
---|
| 575 | if (!mViewCellsManager)
|
---|
[1593] | 576 | {
|
---|
| 577 | return false;
|
---|
| 578 | }
|
---|
[577] | 579 | }
|
---|
| 580 | else
|
---|
| 581 | {
|
---|
[1288] | 582 | // parse type of view cell container
|
---|
[1004] | 583 | Environment::GetSingleton()->GetStringValue("ViewCells.type", buf);
|
---|
[1002] | 584 | mViewCellsManager = CreateViewCellsManager(buf);
|
---|
[1112] | 585 |
|
---|
| 586 | // default view space is the extent of the scene
|
---|
[1563] | 587 | AxisAlignedBox3 box = mSceneGraph->GetBox();
|
---|
| 588 |
|
---|
| 589 | if (0)
|
---|
| 590 | {
|
---|
| 591 | // use a small box outside of the scene
|
---|
| 592 | box.Scale(Vector3(0.1f,0.5f,0.5f));
|
---|
| 593 | box.Translate(Vector3(Magnitude(mSceneGraph->GetBox().Size())*0.5f, 0, 0));
|
---|
| 594 | }
|
---|
[1545] | 595 |
|
---|
[1563] | 596 | mViewCellsManager->SetViewSpaceBox(box);
|
---|
| 597 |
|
---|
[1545] | 598 | bool loadVcGeometry;
|
---|
| 599 | Environment::GetSingleton()->GetBoolValue("ViewCells.loadGeometry", loadVcGeometry);
|
---|
| 600 |
|
---|
| 601 | bool extrudeBaseTriangles;
|
---|
| 602 | Environment::GetSingleton()->GetBoolValue("ViewCells.useBaseTrianglesAsGeometry", extrudeBaseTriangles);
|
---|
| 603 |
|
---|
| 604 | char vcGeomFilename[100];
|
---|
| 605 | Environment::GetSingleton()->GetStringValue("ViewCells.geometryFilename", vcGeomFilename);
|
---|
| 606 |
|
---|
[1627] | 607 | if (loadVcGeometry)
|
---|
[1545] | 608 | {
|
---|
[1627] | 609 | if (mViewCellsManager->GetType() == ViewCellsManager::BSP)
|
---|
[1545] | 610 | {
|
---|
[1627] | 611 | if (!mViewCellsManager->LoadViewCellsGeometry(vcGeomFilename, extrudeBaseTriangles))
|
---|
| 612 | {
|
---|
| 613 | cerr << "loading view cells geometry failed" << endl;
|
---|
| 614 | }
|
---|
[1545] | 615 | }
|
---|
[1627] | 616 | else
|
---|
| 617 | {
|
---|
| 618 | cerr << "loading view cells geometry is not implemented for this manager" << endl;
|
---|
| 619 | }
|
---|
[1545] | 620 | }
|
---|
[577] | 621 | }
|
---|
[1112] | 622 |
|
---|
[1486] | 623 | ////////
|
---|
[1523] | 624 | //-- evaluation of render cost heuristics
|
---|
[473] | 625 | float objRenderCost = 0, vcOverhead = 0, moveSpeed = 0;
|
---|
| 626 |
|
---|
[1004] | 627 | Environment::GetSingleton()->GetFloatValue("Simulation.objRenderCost",objRenderCost);
|
---|
| 628 | Environment::GetSingleton()->GetFloatValue("Simulation.vcOverhead", vcOverhead);
|
---|
| 629 | Environment::GetSingleton()->GetFloatValue("Simulation.moveSpeed", moveSpeed);
|
---|
[694] | 630 |
|
---|
[473] | 631 | mRenderSimulator =
|
---|
| 632 | new RenderSimulator(mViewCellsManager, objRenderCost, vcOverhead, moveSpeed);
|
---|
[440] | 633 |
|
---|
[480] | 634 | mViewCellsManager->SetRenderer(mRenderSimulator);
|
---|
[1581] | 635 |
|
---|
[538] | 636 | if (mUseGlRenderer || mUseGlDebugger)
|
---|
[1581] | 637 | {
|
---|
[540] | 638 | // NOTE: render texture should be power of 2 and square
|
---|
| 639 | // renderer must be initialised
|
---|
[1145] | 640 | // $$matt
|
---|
[1581] | 641 | // renderer = new GlRendererBuffer(1024, 768, mSceneGraph, mViewCellsManager, mKdTree);
|
---|
[556] | 642 | // renderer->makeCurrent();
|
---|
[746] | 643 |
|
---|
[1581] | 644 | }
|
---|
| 645 |
|
---|
| 646 | mViewCellsManager->SetPreprocessor(this);
|
---|
[463] | 647 | return true;
|
---|
[490] | 648 | }
|
---|
| 649 |
|
---|
[1292] | 650 |
|
---|
[1563] | 651 | bool Preprocessor::ConstructViewCells()
|
---|
[1292] | 652 | {
|
---|
[1627] | 653 | // construct view cells using it's own set of samples
|
---|
| 654 | mViewCellsManager->Construct(this);
|
---|
| 655 |
|
---|
| 656 | // visualizations and statistics
|
---|
| 657 | Debug << "finished view cells:" << endl;
|
---|
| 658 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 659 |
|
---|
| 660 | return true;
|
---|
[1292] | 661 | }
|
---|
[490] | 662 |
|
---|
[1294] | 663 |
|
---|
[1288] | 664 | HierarchyManager *Preprocessor::CreateHierarchyManager(const char *name)
|
---|
| 665 | {
|
---|
| 666 | HierarchyManager *hierarchyManager;
|
---|
| 667 |
|
---|
| 668 | if (strcmp(name, "osp") == 0)
|
---|
| 669 | {
|
---|
[1291] | 670 | Debug << "hierarchy manager: osp" << endl;
|
---|
[1288] | 671 | // HACK for testing if per kd evaluation works!!
|
---|
[1293] | 672 | const bool ishack = false;
|
---|
[1288] | 673 | if (ishack)
|
---|
[1421] | 674 | hierarchyManager = new HierarchyManager(mKdTree);
|
---|
[1288] | 675 | else
|
---|
[1421] | 676 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
[1288] | 677 | }
|
---|
| 678 | else if (strcmp(name, "bvh") == 0)
|
---|
| 679 | {
|
---|
[1291] | 680 | Debug << "hierarchy manager: bvh" << endl;
|
---|
[1421] | 681 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
[1288] | 682 | }
|
---|
[1291] | 683 | else // only view space partition
|
---|
| 684 | {
|
---|
| 685 | Debug << "hierarchy manager: obj" << endl;
|
---|
[1421] | 686 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
[1291] | 687 | }
|
---|
[1288] | 688 |
|
---|
| 689 | return hierarchyManager;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 |
|
---|
[575] | 693 | ViewCellsManager *Preprocessor::CreateViewCellsManager(const char *name)
|
---|
| 694 | {
|
---|
[1264] | 695 | ViewCellsTree *vcTree = new ViewCellsTree;
|
---|
| 696 |
|
---|
[575] | 697 | if (strcmp(name, "kdTree") == 0)
|
---|
| 698 | {
|
---|
[1264] | 699 | mViewCellsManager = new KdViewCellsManager(vcTree, mKdTree);
|
---|
[575] | 700 | }
|
---|
| 701 | else if (strcmp(name, "bspTree") == 0)
|
---|
| 702 | {
|
---|
| 703 | Debug << "view cell type: Bsp" << endl;
|
---|
| 704 |
|
---|
[577] | 705 | mBspTree = new BspTree();
|
---|
[1264] | 706 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 707 | }
|
---|
| 708 | else if (strcmp(name, "vspBspTree") == 0)
|
---|
| 709 | {
|
---|
| 710 | Debug << "view cell type: VspBsp" << endl;
|
---|
| 711 |
|
---|
[1004] | 712 | mVspBspTree = new VspBspTree();
|
---|
[1264] | 713 | mViewCellsManager = new VspBspViewCellsManager(vcTree, mVspBspTree);
|
---|
[575] | 714 | }
|
---|
[1006] | 715 | else if (strcmp(name, "vspOspTree") == 0)
|
---|
[575] | 716 | {
|
---|
[1421] | 717 | Debug << "view cell type: VspOsp" << endl;
|
---|
[1288] | 718 | char buf[100];
|
---|
| 719 | Environment::GetSingleton()->GetStringValue("Hierarchy.type", buf);
|
---|
[1022] | 720 |
|
---|
[1288] | 721 | HierarchyManager *mHierarchyManager = CreateHierarchyManager(buf);
|
---|
[1279] | 722 | mViewCellsManager = new VspOspViewCellsManager(vcTree, mHierarchyManager);
|
---|
[575] | 723 | }
|
---|
[1421] | 724 | else if (strcmp(name, "sceneDependent") == 0) //TODO
|
---|
[575] | 725 | {
|
---|
[1143] | 726 | Debug << "view cell type: Bsp" << endl;
|
---|
[1421] | 727 |
|
---|
[575] | 728 | mBspTree = new BspTree();
|
---|
[1264] | 729 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 730 | }
|
---|
| 731 | else
|
---|
| 732 | {
|
---|
[664] | 733 | cerr << "Wrong view cells type " << name << "!!!" << endl;
|
---|
[575] | 734 | exit(1);
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | return mViewCellsManager;
|
---|
| 738 | }
|
---|
| 739 |
|
---|
| 740 |
|
---|
[491] | 741 | // use ascii format to store rays
|
---|
| 742 | #define USE_ASCII 0
|
---|
| 743 |
|
---|
| 744 |
|
---|
[1145] | 745 | static inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
[490] | 746 | {
|
---|
| 747 | return obj1->mId < obj2->mId;
|
---|
| 748 | }
|
---|
| 749 |
|
---|
| 750 |
|
---|
[1414] | 751 | bool Preprocessor::LoadKdTree(const string filename)
|
---|
[1197] | 752 | {
|
---|
[1414] | 753 | mKdTree = new KdTree();
|
---|
[1633] | 754 |
|
---|
[1414] | 755 | return mKdTree->LoadBinTree(filename.c_str(), mObjects);
|
---|
[1197] | 756 | }
|
---|
| 757 |
|
---|
[1414] | 758 |
|
---|
| 759 | bool Preprocessor::ExportKdTree(const string filename)
|
---|
[1197] | 760 | {
|
---|
[1414] | 761 | return mKdTree->ExportBinTree(filename.c_str());
|
---|
[1197] | 762 | }
|
---|
| 763 |
|
---|
| 764 |
|
---|
[490] | 765 | bool Preprocessor::LoadSamples(VssRayContainer &samples,
|
---|
| 766 | ObjectContainer &objects) const
|
---|
| 767 | {
|
---|
| 768 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
| 769 | char fileName[100];
|
---|
[1004] | 770 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[490] | 771 |
|
---|
[491] | 772 | Vector3 origin, termination;
|
---|
| 773 | // HACK: needed only for lower_bound algorithm to find the
|
---|
| 774 | // intersected objects
|
---|
| 775 | MeshInstance sObj(NULL);
|
---|
| 776 | MeshInstance tObj(NULL);
|
---|
[490] | 777 |
|
---|
[491] | 778 | #if USE_ASCII
|
---|
[656] | 779 | ifstream samplesIn(fileName);
|
---|
[490] | 780 | if (!samplesIn.is_open())
|
---|
| 781 | return false;
|
---|
| 782 |
|
---|
| 783 | string buf;
|
---|
| 784 | while (!(getline(samplesIn, buf)).eof())
|
---|
| 785 | {
|
---|
[491] | 786 | sscanf(buf.c_str(), "%f %f %f %f %f %f %d %d",
|
---|
[490] | 787 | &origin.x, &origin.y, &origin.z,
|
---|
[491] | 788 | &termination.x, &termination.y, &termination.z,
|
---|
| 789 | &(sObj.mId), &(tObj.mId));
|
---|
[490] | 790 |
|
---|
[491] | 791 | Intersectable *sourceObj = NULL;
|
---|
| 792 | Intersectable *termObj = NULL;
|
---|
| 793 |
|
---|
| 794 | if (sObj.mId >= 0)
|
---|
[490] | 795 | {
|
---|
| 796 | ObjectContainer::iterator oit =
|
---|
[491] | 797 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 798 | sourceObj = *oit;
|
---|
| 799 | }
|
---|
| 800 |
|
---|
| 801 | if (tObj.mId >= 0)
|
---|
| 802 | {
|
---|
| 803 | ObjectContainer::iterator oit =
|
---|
| 804 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 805 | termObj = *oit;
|
---|
| 806 | }
|
---|
[490] | 807 |
|
---|
[491] | 808 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
| 809 | }
|
---|
| 810 | #else
|
---|
| 811 | ifstream samplesIn(fileName, ios::binary);
|
---|
| 812 | if (!samplesIn.is_open())
|
---|
| 813 | return false;
|
---|
| 814 |
|
---|
| 815 | while (1)
|
---|
| 816 | {
|
---|
| 817 | samplesIn.read(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 818 | samplesIn.read(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 819 | samplesIn.read(reinterpret_cast<char *>(&(sObj.mId)), sizeof(int));
|
---|
| 820 | samplesIn.read(reinterpret_cast<char *>(&(tObj.mId)), sizeof(int));
|
---|
| 821 |
|
---|
| 822 | if (samplesIn.eof())
|
---|
| 823 | break;
|
---|
| 824 |
|
---|
| 825 | Intersectable *sourceObj = NULL;
|
---|
| 826 | Intersectable *termObj = NULL;
|
---|
| 827 |
|
---|
| 828 | if (sObj.mId >= 0)
|
---|
| 829 | {
|
---|
| 830 | ObjectContainer::iterator oit =
|
---|
| 831 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 832 | sourceObj = *oit;
|
---|
[490] | 833 | }
|
---|
[491] | 834 |
|
---|
| 835 | if (tObj.mId >= 0)
|
---|
[490] | 836 | {
|
---|
[491] | 837 | ObjectContainer::iterator oit =
|
---|
| 838 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 839 | termObj = *oit;
|
---|
[490] | 840 | }
|
---|
[491] | 841 |
|
---|
| 842 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
[490] | 843 | }
|
---|
[491] | 844 |
|
---|
| 845 | #endif
|
---|
[490] | 846 | samplesIn.close();
|
---|
| 847 |
|
---|
| 848 | return true;
|
---|
| 849 | }
|
---|
| 850 |
|
---|
[508] | 851 |
|
---|
| 852 | bool Preprocessor::ExportSamples(const VssRayContainer &samples) const
|
---|
[490] | 853 | {
|
---|
[491] | 854 | char fileName[100];
|
---|
[1004] | 855 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[491] | 856 |
|
---|
[490] | 857 |
|
---|
| 858 | VssRayContainer::const_iterator it, it_end = samples.end();
|
---|
| 859 |
|
---|
[491] | 860 | #if USE_ASCII
|
---|
| 861 | ofstream samplesOut(fileName);
|
---|
[490] | 862 | if (!samplesOut.is_open())
|
---|
| 863 | return false;
|
---|
| 864 |
|
---|
| 865 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 866 | {
|
---|
| 867 | VssRay *ray = *it;
|
---|
[491] | 868 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 869 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 870 |
|
---|
[490] | 871 | samplesOut << ray->GetOrigin().x << " " << ray->GetOrigin().y << " " << ray->GetOrigin().z << " "
|
---|
| 872 | << ray->GetTermination().x << " " << ray->GetTermination().y << " " << ray->GetTermination().z << " "
|
---|
[491] | 873 | << sourceid << " " << termid << "\n";
|
---|
[490] | 874 | }
|
---|
[491] | 875 | #else
|
---|
| 876 | ofstream samplesOut(fileName, ios::binary);
|
---|
| 877 | if (!samplesOut.is_open())
|
---|
| 878 | return false;
|
---|
| 879 |
|
---|
| 880 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 881 | {
|
---|
| 882 | VssRay *ray = *it;
|
---|
| 883 | Vector3 origin(ray->GetOrigin());
|
---|
| 884 | Vector3 termination(ray->GetTermination());
|
---|
| 885 |
|
---|
| 886 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 887 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 888 |
|
---|
| 889 | samplesOut.write(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 890 | samplesOut.write(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 891 | samplesOut.write(reinterpret_cast<char *>(&sourceid), sizeof(int));
|
---|
| 892 | samplesOut.write(reinterpret_cast<char *>(&termid), sizeof(int));
|
---|
| 893 | }
|
---|
| 894 | #endif
|
---|
[490] | 895 | samplesOut.close();
|
---|
[1194] | 896 |
|
---|
[490] | 897 | return true;
|
---|
| 898 | }
|
---|
[563] | 899 |
|
---|
[1020] | 900 | bool Preprocessor::GenerateRays(const int number,
|
---|
| 901 | const int sampleType,
|
---|
| 902 | SimpleRayContainer &rays)
|
---|
| 903 | {
|
---|
| 904 | const int startSize = (int)rays.size();
|
---|
| 905 | SamplingStrategy *strategy = GenerateSamplingStrategy(sampleType);
|
---|
[860] | 906 |
|
---|
[1020] | 907 | if (!strategy)
|
---|
[1381] | 908 | {
|
---|
[1020] | 909 | return false;
|
---|
[1381] | 910 | }
|
---|
[1020] | 911 |
|
---|
| 912 | for (int i=0; (int)rays.size() - startSize < number; ++ i)
|
---|
| 913 | {
|
---|
| 914 | SimpleRay newRay;
|
---|
| 915 |
|
---|
[1381] | 916 | if (strategy->GenerateSample(newRay))
|
---|
| 917 | {
|
---|
| 918 | #if 1
|
---|
[1020] | 919 | rays.AddRay(newRay);
|
---|
[1381] | 920 | #else
|
---|
| 921 | GenerateRayBundle(rays, newRay, 16, 0);
|
---|
| 922 | #endif
|
---|
| 923 | }
|
---|
[1020] | 924 | }
|
---|
| 925 |
|
---|
| 926 | delete strategy;
|
---|
| 927 | return true;
|
---|
[878] | 928 | }
|
---|
[1020] | 929 |
|
---|
| 930 |
|
---|
| 931 | SamplingStrategy *Preprocessor::GenerateSamplingStrategy(const int strategyId) const
|
---|
| 932 | {
|
---|
| 933 | switch (strategyId)
|
---|
| 934 | {
|
---|
[1520] | 935 | case SamplingStrategy::OBJECT_BASED_DISTRIBUTION:
|
---|
[1020] | 936 | return new ObjectBasedDistribution(*this);
|
---|
[1520] | 937 | case SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 938 | return new ObjectDirectionBasedDistribution(*this);
|
---|
[1520] | 939 | case SamplingStrategy::DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 940 | return new DirectionBasedDistribution(*this);
|
---|
[1520] | 941 | case SamplingStrategy::DIRECTION_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 942 | return new DirectionBoxBasedDistribution(*this);
|
---|
[1520] | 943 | case SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 944 | return new SpatialBoxBasedDistribution(*this);
|
---|
[1021] | 945 | //case OBJECTS_INTERIOR_DISTRIBUTION:
|
---|
| 946 | // return new ObjectsInteriorDistribution(*this);
|
---|
[1020] | 947 | default: // no valid strategy
|
---|
[1279] | 948 | Debug << "warning: no valid sampling strategy" << endl;
|
---|
[1020] | 949 | return NULL;
|
---|
| 950 | }
|
---|
[1221] | 951 |
|
---|
[1570] | 952 | return NULL; // should never come here
|
---|
[1020] | 953 | }
|
---|
| 954 |
|
---|
| 955 |
|
---|
[1627] | 956 | bool Preprocessor::InitRayCast(const string externKdTree, const string internKdTree)
|
---|
[1221] | 957 | {
|
---|
[1633] | 958 | // always try to load the kd tree
|
---|
[1664] | 959 | cout << "loading kd tree file " << internKdTree << " ... " << endl;
|
---|
[1634] | 960 |
|
---|
| 961 | if (!LoadKdTree(internKdTree))
|
---|
| 962 | {
|
---|
| 963 | cout << "error loading kd tree with filename " << internKdTree << ", rebuilding it instead ... " << endl;
|
---|
[1633] | 964 | // build new kd tree from scene geometry
|
---|
[1415] | 965 | BuildKdTree();
|
---|
| 966 |
|
---|
[1627] | 967 | // export kd tree?
|
---|
[1633] | 968 | const long startTime = GetTime();
|
---|
[1627] | 969 | cout << "exporting kd tree ... ";
|
---|
| 970 |
|
---|
| 971 | if (!ExportKdTree(internKdTree))
|
---|
| 972 | {
|
---|
| 973 | cout << " error exporting kd tree with filename " << internKdTree << endl;
|
---|
| 974 | }
|
---|
| 975 | else
|
---|
| 976 | {
|
---|
| 977 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 978 | }
|
---|
[1415] | 979 | }
|
---|
[1633] | 980 |
|
---|
| 981 | KdTreeStatistics(cout);
|
---|
| 982 | cout << mKdTree->GetBox() << endl;
|
---|
[1415] | 983 |
|
---|
[1633] | 984 | if (0)
|
---|
| 985 | {
|
---|
| 986 | Exporter *exporter = Exporter::GetExporter("dummykd.x3d");
|
---|
| 987 |
|
---|
| 988 | if (exporter)
|
---|
| 989 | {
|
---|
| 990 | exporter->ExportKdTree(*mKdTree, true);
|
---|
| 991 | delete exporter;
|
---|
| 992 | }
|
---|
| 993 | }
|
---|
| 994 |
|
---|
[1520] | 995 | int rayCastMethod;
|
---|
| 996 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
|
---|
| 997 |
|
---|
| 998 | if (rayCastMethod == 0)
|
---|
[1221] | 999 | {
|
---|
[1520] | 1000 | mRayCaster = new InternalRayCaster(*this, mKdTree);
|
---|
| 1001 | cout << "ray cast method: internal" << endl;
|
---|
[1221] | 1002 | }
|
---|
[1251] | 1003 | else
|
---|
[1520] | 1004 | {
|
---|
[1524] | 1005 | #ifdef GTP_INTERNAL
|
---|
[1520] | 1006 | mRayCaster = new IntelRayCaster(*this, externKdTree);
|
---|
| 1007 | cout << "ray cast method: intel" << endl;
|
---|
[1524] | 1008 | #endif
|
---|
[1251] | 1009 | }
|
---|
| 1010 |
|
---|
[1520] | 1011 | return true;
|
---|
[1281] | 1012 | }
|
---|
| 1013 |
|
---|
[1292] | 1014 |
|
---|
[1281] | 1015 | void
|
---|
| 1016 | Preprocessor::CastRays(
|
---|
| 1017 | SimpleRayContainer &rays,
|
---|
[1520] | 1018 | VssRayContainer &vssRays,
|
---|
[1528] | 1019 | const bool castDoubleRays,
|
---|
| 1020 | const bool pruneInvalidRays
|
---|
[1281] | 1021 | )
|
---|
| 1022 | {
|
---|
[1524] | 1023 | const long t1 = GetTime();
|
---|
[1344] | 1024 |
|
---|
[1524] | 1025 | for (int i = 0; i < (int)rays.size();)
|
---|
[1292] | 1026 | {
|
---|
[1524] | 1027 | if (i + 16 < (int)rays.size())
|
---|
[1520] | 1028 | {
|
---|
[1524] | 1029 | mRayCaster->CastRays16(
|
---|
[1584] | 1030 | i,
|
---|
| 1031 | rays,
|
---|
| 1032 | vssRays,
|
---|
| 1033 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 1034 | castDoubleRays,
|
---|
| 1035 | pruneInvalidRays);
|
---|
[1524] | 1036 | i += 16;
|
---|
[1292] | 1037 | }
|
---|
[1524] | 1038 | else
|
---|
[1584] | 1039 | {
|
---|
[1524] | 1040 | mRayCaster->CastRay(
|
---|
[1584] | 1041 | rays[i],
|
---|
| 1042 | vssRays,
|
---|
| 1043 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 1044 | castDoubleRays,
|
---|
| 1045 | pruneInvalidRays);
|
---|
[1524] | 1046 | i ++;
|
---|
[1584] | 1047 | }
|
---|
| 1048 | if (i % 10000 == 0)
|
---|
[1627] | 1049 | cout<<"\r"<<i<<"/"<<(int)rays.size()<<"\r";
|
---|
[1524] | 1050 | }
|
---|
[1608] | 1051 | cout<<endl;
|
---|
[1584] | 1052 |
|
---|
| 1053 | long t2 = GetTime();
|
---|
[1286] | 1054 |
|
---|
[1584] | 1055 | #if SHOW_RAYCAST_TIMING
|
---|
[1524] | 1056 | if (castDoubleRays)
|
---|
| 1057 | cout << 2 * rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
| 1058 | else
|
---|
| 1059 | cout << rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
| 1060 | #endif
|
---|
[1251] | 1061 | }
|
---|
| 1062 |
|
---|
| 1063 |
|
---|
[1381] | 1064 | bool Preprocessor::GenerateRayBundle(SimpleRayContainer &rayBundle,
|
---|
| 1065 | const SimpleRay &mainRay,
|
---|
| 1066 | const int number,
|
---|
| 1067 | const int pertubType) const
|
---|
| 1068 | {
|
---|
| 1069 | rayBundle.push_back(mainRay);
|
---|
| 1070 |
|
---|
[1564] | 1071 | const float pertubOrigin = 0.0f;
|
---|
| 1072 | const float pertubDir = 0.2f;
|
---|
[1381] | 1073 |
|
---|
| 1074 | for (int i = 0; i < number - 1; ++ i)
|
---|
| 1075 | {
|
---|
| 1076 | Vector3 pertub;
|
---|
| 1077 |
|
---|
| 1078 | pertub.x = RandomValue(0.0f, pertubDir);
|
---|
| 1079 | pertub.y = RandomValue(0.0f, pertubDir);
|
---|
| 1080 | pertub.z = RandomValue(0.0f, pertubDir);
|
---|
| 1081 | const Vector3 newDir = mainRay.mDirection + pertub;
|
---|
| 1082 | //const Vector3 newDir = mainRay.mDirection;
|
---|
| 1083 |
|
---|
| 1084 | pertub.x = RandomValue(0.0f, pertubOrigin);
|
---|
| 1085 | pertub.y = RandomValue(0.0f, pertubOrigin);
|
---|
| 1086 | pertub.z = RandomValue(0.0f, pertubOrigin);
|
---|
| 1087 | const Vector3 newOrigin = mainRay.mOrigin + pertub;
|
---|
| 1088 | //const Vector3 newOrigin = mainRay.mOrigin;
|
---|
| 1089 |
|
---|
| 1090 | rayBundle.push_back(SimpleRay(newOrigin, newDir, 0));
|
---|
| 1091 | }
|
---|
| 1092 |
|
---|
| 1093 | return true;
|
---|
| 1094 | }
|
---|
| 1095 |
|
---|
| 1096 |
|
---|
[1251] | 1097 | void Preprocessor::SetupRay(Ray &ray,
|
---|
| 1098 | const Vector3 &point,
|
---|
| 1099 | const Vector3 &direction
|
---|
[1520] | 1100 | ) const
|
---|
[1251] | 1101 | {
|
---|
| 1102 | ray.Clear();
|
---|
| 1103 | // do not store anything else then intersections at the ray
|
---|
| 1104 | ray.Init(point, direction, Ray::LOCAL_RAY);
|
---|
[1584] | 1105 |
|
---|
[1251] | 1106 | }
|
---|
| 1107 |
|
---|
[1520] | 1108 |
|
---|
[1251] | 1109 | }
|
---|