[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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| 27 |
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| 28 |
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[863] | 29 | namespace GtpVisibilityPreprocessor {
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[860] | 30 |
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[1020] | 31 | const static bool ADDITIONAL_GEOMETRY_HACK = false;
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[860] | 32 |
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[492] | 33 |
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[1001] | 34 | // HACK: Artificially modify scene to watch rendercost changes
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[750] | 35 | static void AddGeometry(SceneGraph *scene)
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| 36 | {
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[1328] | 37 | scene->GetRoot()->UpdateBox();
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[752] | 38 |
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[750] | 39 | AxisAlignedBox3 sceneBox = scene->GetBox();
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| 40 |
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| 41 | int n = 200;
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| 42 |
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[1291] | 43 | if (0)
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[750] | 44 | {
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[1291] | 45 | // form grid of boxes
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| 46 | for (int i = 0; i < n; ++ i)
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[750] | 47 | {
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[1291] | 48 | for (int j = 0; j < n; ++ j)
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| 49 | {
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| 50 | 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] | 51 |
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[1291] | 52 | const Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 53 |
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| 54 | const Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 55 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 56 | Mesh *mesh = CreateMeshFromBox(box);
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| 57 |
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| 58 | mesh->Preprocess();
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| 59 |
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| 60 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 61 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 62 | }
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[750] | 63 | }
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| 64 |
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[1291] | 65 | for (int i = 0; i < n; ++ i)
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[750] | 66 | {
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[1291] | 67 | for (int j = 0; j < n; ++ j)
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| 68 | {
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| 69 | const Vector3 scale2(0.15f, (float)j * 0.8f / n + 0.1f, (float)i * 0.8f / (float)n + 0.1f);
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| 70 |
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| 71 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 72 |
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| 73 | Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 74 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 75 | Mesh *mesh = CreateMeshFromBox(box);
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| 76 |
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| 77 | mesh->Preprocess();
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| 78 |
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| 79 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 80 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 81 | }
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| 82 | }
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| 83 |
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| 84 | for (int i = 0; i < n; ++ i)
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| 85 | {
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| 86 | const Vector3 scale2(2, 0.2f, (float)i * 0.8f / (float)n + 0.1f);
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| 87 |
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[750] | 88 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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[1291] | 89 |
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| 90 | //Vector3 boxSize = sceneBox.Size() * Vector3(0.0025, 0.01, 0.0025);
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| 91 | Vector3 boxSize = sceneBox.Size() * Vector3(0.005f, 0.02f, 0.005f);
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| 92 |
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| 93 | AxisAlignedBox3 box(pt2 + 0.1f, pt2 + boxSize);
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[991] | 94 | Mesh *mesh = CreateMeshFromBox(box);
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[750] | 95 |
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| 96 | mesh->Preprocess();
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[1291] | 97 |
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[750] | 98 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 99 | scene->GetRoot()->mGeometry.push_back(mi);
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[750] | 100 | }
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[1291] | 101 |
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[1328] | 102 | scene->GetRoot()->UpdateBox();
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[750] | 103 | }
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| 104 |
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[840] | 105 | if (1)
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| 106 | {
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[1221] | 107 | // plane separating view space regions
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[1135] | 108 | const Vector3 scale(1.0f, 0.0, 0);
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[750] | 109 |
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[840] | 110 | Vector3 pt = sceneBox.Min() + scale * (sceneBox.Max() - sceneBox.Min());
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[750] | 111 |
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[840] | 112 | Plane3 cuttingPlane(Vector3(1, 0, 0), pt);
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| 113 | Mesh *planeMesh = new Mesh();
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[1291] | 114 |
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[840] | 115 | Polygon3 *poly = sceneBox.CrossSection(cuttingPlane);
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| 116 | IncludePolyInMesh(*poly, *planeMesh);
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[1291] | 117 |
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[840] | 118 | planeMesh->Preprocess();
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[1291] | 119 |
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[840] | 120 | MeshInstance *planeMi = new MeshInstance(planeMesh);
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[1328] | 121 | scene->GetRoot()->mGeometry.push_back(planeMi);
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[840] | 122 | }
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[750] | 123 | }
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| 124 |
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| 125 |
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[372] | 126 | Preprocessor::Preprocessor():
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| 127 | mKdTree(NULL),
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[409] | 128 | mBspTree(NULL),
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[445] | 129 | mVspBspTree(NULL),
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[1279] | 130 | mHierarchyManager(NULL),
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[1002] | 131 | mViewCellsManager(NULL),
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[1251] | 132 | mRenderSimulator(NULL),
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[1279] | 133 | mPass(0),
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[1520] | 134 | mSceneGraph(NULL),
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| 135 | mRayCaster(NULL)
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[308] | 136 | {
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[1004] | 137 | Environment::GetSingleton()->GetBoolValue("Preprocessor.useGlRenderer", mUseGlRenderer);
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[538] | 138 |
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[840] | 139 | // renderer will be constructed when the scene graph and viewcell manager will be known
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| 140 | renderer = NULL;
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[496] | 141 |
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[1004] | 142 | Environment::GetSingleton()->GetBoolValue("Preprocessor.useGlDebugger", mUseGlDebugger);
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[1379] | 143 | Environment::GetSingleton()->GetBoolValue("Preprocessor.loadMeshes", mLoadMeshes);
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[1004] | 144 | Environment::GetSingleton()->GetBoolValue("Preprocessor.quitOnFinish", mQuitOnFinish);
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| 145 | Environment::GetSingleton()->GetBoolValue("Preprocessor.computeVisibility", mComputeVisibility);
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| 146 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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| 147 | Environment::GetSingleton()->GetBoolValue("Preprocessor.exportVisibility", mExportVisibility );
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[1520] | 148 |
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[871] | 149 | char buffer[256];
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[1004] | 150 | Environment::GetSingleton()->GetStringValue("Preprocessor.visibilityFile", buffer);
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[1415] | 151 |
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[871] | 152 | mVisibilityFileName = buffer;
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[1004] | 153 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilityFilter", mApplyVisibilityFilter );
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| 154 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilitySpatialFilter",
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[904] | 155 | mApplyVisibilitySpatialFilter );
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[1004] | 156 | Environment::GetSingleton()->GetFloatValue("Preprocessor.visibilityFilterWidth", mVisibilityFilterWidth);
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[878] | 157 |
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[840] | 158 | Debug << "detect empty view space=" << mDetectEmptyViewSpace << endl;
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[1379] | 159 | Debug << "load meshes: " << mLoadMeshes << endl;
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[372] | 160 | }
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| 161 |
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| 162 |
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| 163 | Preprocessor::~Preprocessor()
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| 164 | {
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[1291] | 165 | cout << "cleaning up" << endl;
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[752] | 166 |
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[1291] | 167 | cout << "Deleting view cells manager ... \n";
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| 168 | DEL_PTR(mViewCellsManager);
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| 169 | cout << "done.\n";
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[752] | 170 |
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[1291] | 171 | cout << "Deleting bsp tree ... \n";
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| 172 | DEL_PTR(mBspTree);
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| 173 | cout << "done.\n";
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[752] | 174 |
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[1291] | 175 | cout << "Deleting kd tree...\n";
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| 176 | DEL_PTR(mKdTree);
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| 177 | cout << "done.\n";
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[752] | 178 |
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[1291] | 179 | cout << "Deleting hierarchy manager...\n";
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| 180 | DEL_PTR(mHierarchyManager);
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| 181 | cout << "done.\n";
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[1002] | 182 |
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[1291] | 183 | cout << "Deleting vspbsp tree...\n";
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| 184 | DEL_PTR(mVspBspTree);
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| 185 | cout << "done.\n";
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[1002] | 186 |
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[1291] | 187 | cout << "Deleting scene graph...\n";
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| 188 | DEL_PTR(mSceneGraph);
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| 189 | cout << "done.\n";
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| 190 |
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| 191 | DEL_PTR(mRenderSimulator);
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| 192 | DEL_PTR(renderer);
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[1523] | 193 | DEL_PTR(mRayCaster);
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[372] | 194 | }
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| 195 |
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[1521] | 196 |
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| 197 | GlRendererBuffer *Preprocessor::GetRenderer()
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| 198 | {
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| 199 | return renderer;
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| 200 | }
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| 201 |
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| 202 |
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| 203 | static int SplitFilenames(const string str, vector<string> &filenames)
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[387] | 204 | {
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| 205 | int pos = 0;
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| 206 |
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| 207 | while(1) {
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[469] | 208 | int npos = (int)str.find(';', pos);
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[387] | 209 |
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| 210 | if (npos < 0 || npos - pos < 1)
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| 211 | break;
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| 212 | filenames.push_back(string(str, pos, npos - pos));
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| 213 | pos = npos + 1;
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| 214 | }
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| 215 |
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| 216 | filenames.push_back(string(str, pos, str.size() - pos));
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[440] | 217 | return (int)filenames.size();
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[387] | 218 | }
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| 219 |
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[750] | 220 |
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[372] | 221 | bool
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| 222 | Preprocessor::LoadScene(const string filename)
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| 223 | {
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[925] | 224 | // use leaf nodes of the original spatial hierarchy as occludees
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[508] | 225 | mSceneGraph = new SceneGraph;
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[372] | 226 |
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[508] | 227 | Parser *parser;
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[387] | 228 | vector<string> filenames;
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[1404] | 229 | const int files = SplitFilenames(filename, filenames);
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[712] | 230 | cout << "number of input files: " << files << endl;
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[387] | 231 | bool result = false;
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[1344] | 232 |
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| 233 | // root for different files
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| 234 | mSceneGraph->SetRoot(new SceneGraphNode());
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| 235 |
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[1404] | 236 | // intel ray caster can only trace triangles
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[1520] | 237 | int rayCastMethod;
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| 238 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
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| 239 | vector<FaceParentInfo> *fi = (rayCastMethod == RayCaster::INTEL_RAYCASTER) ?
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[1404] | 240 | &mFaceParents : NULL;
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| 241 |
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[387] | 242 | if (files == 1) {
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| 243 |
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| 244 | if (strstr(filename.c_str(), ".x3d"))
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[749] | 245 | parser = new X3dParser;
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[387] | 246 | else
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[811] | 247 | if (strstr(filename.c_str(), ".ply") || strstr(filename.c_str(), ".plb"))
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[749] | 248 | parser = new PlyParser;
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[1221] | 249 | else if (strstr(filename.c_str(), ".obj"))
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| 250 | parser = new ObjParser;
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| 251 | else
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| 252 | parser = new UnigraphicsParser;
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[372] | 253 |
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[1328] | 254 | cout << filename << endl;
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[1404] | 255 |
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| 256 | result = parser->ParseFile(
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[1328] | 257 | filename,
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[1344] | 258 | mSceneGraph->GetRoot(),
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[1379] | 259 | mLoadMeshes,
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[1404] | 260 | fi);
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| 261 |
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[387] | 262 | delete parser;
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[372] | 263 |
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[1404] | 264 | }
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| 265 | else {
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| 266 | vector<string>::const_iterator fit, fit_end = filenames.end();
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[1344] | 267 |
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[1404] | 268 | for (fit = filenames.begin(); fit != fit_end; ++ fit)
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| 269 | {
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| 270 | const string filename = *fit;
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[1328] | 271 |
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[1404] | 272 | cout << "parsing file " << filename.c_str() << endl;
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| 273 | if (strstr(filename.c_str(), ".x3d"))
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| 274 | parser = new X3dParser;
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| 275 | else
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| 276 | parser = new UnigraphicsParser;
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| 277 |
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| 278 | SceneGraphNode *node = new SceneGraphNode();
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| 279 | const bool success = parser->ParseFile(
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| 280 | filename,
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| 281 | node,
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| 282 | mLoadMeshes,
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| 283 | fi);
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| 284 |
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| 285 | if (success)
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| 286 | {
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| 287 | mSceneGraph->GetRoot()->mChildren.push_back(node);
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| 288 | result = true; // at least one file parsed
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| 289 | }
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| 290 |
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| 291 | delete parser;
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[387] | 292 | }
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| 293 | }
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[1344] | 294 |
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[752] | 295 | if (result)
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[1344] | 296 | {
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[752] | 297 | // HACK
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[1020] | 298 | if (ADDITIONAL_GEOMETRY_HACK)
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| 299 | AddGeometry(mSceneGraph);
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[1328] | 300 |
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[1020] | 301 | mSceneGraph->AssignObjectIds();
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[1344] | 302 |
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[1020] | 303 | int intersectables, faces;
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| 304 | mSceneGraph->GetStatistics(intersectables, faces);
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[1344] | 305 |
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[1020] | 306 | cout<<filename<<" parsed successfully."<<endl;
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| 307 | cout<<"#NUM_OBJECTS (Total numner of objects)\n"<<intersectables<<endl;
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| 308 | cout<<"#NUM_FACES (Total numner of faces)\n"<<faces<<endl;
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| 309 | mSceneGraph->CollectObjects(&mObjects);
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[1328] | 310 | mSceneGraph->GetRoot()->UpdateBox();
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[1344] | 311 |
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[1020] | 312 | if (0)
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| 313 | {
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| 314 | Exporter *exporter = Exporter::GetExporter("testload.x3d");
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| 315 | if (exporter)
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| 316 | {
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| 317 | exporter->ExportGeometry(mObjects);
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| 318 | delete exporter;
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| 319 | }
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| 320 | }
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[387] | 321 | }
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[1328] | 322 |
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[492] | 323 | return result;
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[372] | 324 | }
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| 325 |
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| 326 | bool
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| 327 | Preprocessor::ExportPreprocessedData(const string filename)
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| 328 | {
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[1486] | 329 | mViewCellsManager->ExportViewCells(filename, true, mObjects);
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| 330 | return true;
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[372] | 331 | }
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| 332 |
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[1486] | 333 |
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[372] | 334 | bool
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[871] | 335 | Preprocessor::PostProcessVisibility()
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| 336 | {
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| 337 |
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[904] | 338 | if (mApplyVisibilityFilter || mApplyVisibilitySpatialFilter) {
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[997] | 339 | cout<<"Applying visibility filter ...";
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[1002] | 340 | cout<<"filter width = " << mVisibilityFilterWidth << endl;
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[904] | 341 |
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[1002] | 342 | if (!mViewCellsManager)
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[1199] | 343 | return false;
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| 344 |
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[871] | 345 | mViewCellsManager->ApplyFilter(mKdTree,
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[904] | 346 | mApplyVisibilityFilter ? mVisibilityFilterWidth : -1.0f,
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| 347 | mApplyVisibilitySpatialFilter ? mVisibilityFilterWidth : -1.0f);
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[997] | 348 | cout << "done." << endl;
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[871] | 349 | }
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| 350 |
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| 351 | // export the preprocessed information to a file
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| 352 | if (mExportVisibility)
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[1486] | 353 | {
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| 354 | ExportPreprocessedData(mVisibilityFileName);
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| 355 | }
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| 356 |
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[871] | 357 | return true;
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| 358 | }
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| 359 |
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| 360 |
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| 361 | bool
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[372] | 362 | Preprocessor::BuildKdTree()
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| 363 | {
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| 364 | mKdTree = new KdTree;
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[1344] | 365 |
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[372] | 366 | // add mesh instances of the scene graph to the root of the tree
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| 367 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot();
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[1344] | 368 |
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[372] | 369 | mSceneGraph->CollectObjects(&root->mObjects);
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[1344] | 370 |
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[1415] | 371 | const long startTime = GetTime();
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[1201] | 372 | cout << "building kd tree ... " << endl;
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[1344] | 373 |
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[372] | 374 | mKdTree->Construct();
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[1344] | 375 |
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[1415] | 376 | cout << "finished kd tree construction in " << TimeDiff(startTime, GetTime()) * 1e-3
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| 377 | << " secs " << endl;
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[1344] | 378 |
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[372] | 379 | return true;
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| 380 | }
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| 381 |
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[1415] | 382 |
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[372] | 383 | void
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| 384 | Preprocessor::KdTreeStatistics(ostream &s)
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| 385 | {
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| 386 | s<<mKdTree->GetStatistics();
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| 387 | }
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| 388 |
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| 389 | void
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| 390 | Preprocessor::BspTreeStatistics(ostream &s)
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| 391 | {
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| 392 | s << mBspTree->GetStatistics();
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| 393 | }
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| 394 |
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| 395 | bool
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| 396 | Preprocessor::Export( const string filename,
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[492] | 397 | const bool scene,
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| 398 | const bool kdtree,
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| 399 | const bool bsptree
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| 400 | )
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[372] | 401 | {
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| 402 | Exporter *exporter = Exporter::GetExporter(filename);
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| 403 |
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| 404 | if (exporter) {
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[1405] | 405 | if (0 && scene)
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[1328] | 406 | exporter->ExportScene(mSceneGraph->GetRoot());
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[372] | 407 |
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[1405] | 408 | if (0 && kdtree) {
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[372] | 409 | exporter->SetWireframe();
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| 410 | exporter->ExportKdTree(*mKdTree);
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| 411 | }
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| 412 |
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[1405] | 413 | if (0 && bsptree) {
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[372] | 414 | //exporter->SetWireframe();
|
---|
| 415 | exporter->ExportBspTree(*mBspTree);
|
---|
| 416 | }
|
---|
| 417 |
|
---|
| 418 | delete exporter;
|
---|
| 419 | return true;
|
---|
| 420 | }
|
---|
| 421 |
|
---|
| 422 | return false;
|
---|
| 423 | }
|
---|
[429] | 424 |
|
---|
[508] | 425 |
|
---|
[463] | 426 | bool Preprocessor::PrepareViewCells()
|
---|
| 427 | {
|
---|
[1523] | 428 | ///////
|
---|
[577] | 429 | //-- parse view cells construction method
|
---|
[1004] | 430 | Environment::GetSingleton()->GetBoolValue("ViewCells.loadFromFile", mLoadViewCells);
|
---|
[577] | 431 | char buf[100];
|
---|
| 432 |
|
---|
| 433 | if (mLoadViewCells)
|
---|
[997] | 434 | {
|
---|
[1004] | 435 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", buf);
|
---|
[1264] | 436 | cout << "loading view cells from " << buf << endl;
|
---|
[1004] | 437 | mViewCellsManager = ViewCellsManager::LoadViewCells(buf, &mObjects, true);
|
---|
[1522] | 438 | if (!mViewCellsManager)
|
---|
| 439 | return false;
|
---|
[577] | 440 | }
|
---|
| 441 | else
|
---|
| 442 | {
|
---|
[1288] | 443 | // parse type of view cell container
|
---|
[1004] | 444 | Environment::GetSingleton()->GetStringValue("ViewCells.type", buf);
|
---|
[1002] | 445 | mViewCellsManager = CreateViewCellsManager(buf);
|
---|
[1112] | 446 |
|
---|
| 447 | // default view space is the extent of the scene
|
---|
| 448 | mViewCellsManager->SetViewSpaceBox(mSceneGraph->GetBox());
|
---|
[577] | 449 | }
|
---|
[1112] | 450 |
|
---|
[1486] | 451 | ////////
|
---|
[1523] | 452 | //-- evaluation of render cost heuristics
|
---|
[473] | 453 | float objRenderCost = 0, vcOverhead = 0, moveSpeed = 0;
|
---|
| 454 |
|
---|
[1004] | 455 | Environment::GetSingleton()->GetFloatValue("Simulation.objRenderCost",objRenderCost);
|
---|
| 456 | Environment::GetSingleton()->GetFloatValue("Simulation.vcOverhead", vcOverhead);
|
---|
| 457 | Environment::GetSingleton()->GetFloatValue("Simulation.moveSpeed", moveSpeed);
|
---|
[694] | 458 |
|
---|
[473] | 459 | mRenderSimulator =
|
---|
| 460 | new RenderSimulator(mViewCellsManager, objRenderCost, vcOverhead, moveSpeed);
|
---|
[440] | 461 |
|
---|
[480] | 462 | mViewCellsManager->SetRenderer(mRenderSimulator);
|
---|
[440] | 463 |
|
---|
[574] | 464 |
|
---|
[538] | 465 | if (mUseGlRenderer || mUseGlDebugger)
|
---|
[540] | 466 | {
|
---|
| 467 | // NOTE: render texture should be power of 2 and square
|
---|
| 468 | // renderer must be initialised
|
---|
[1145] | 469 | // $$matt
|
---|
| 470 | // renderer = new GlRendererBuffer(1024, 768, mSceneGraph, mViewCellsManager, mKdTree);
|
---|
[556] | 471 | // renderer->makeCurrent();
|
---|
[746] | 472 |
|
---|
[540] | 473 | }
|
---|
[496] | 474 |
|
---|
[463] | 475 | return true;
|
---|
[490] | 476 | }
|
---|
| 477 |
|
---|
[1292] | 478 |
|
---|
[1486] | 479 | bool Preprocessor::ConstructViewCells(const AxisAlignedBox3 &viewSpaceBox)
|
---|
[1292] | 480 | {
|
---|
[1486] | 481 | mViewCellsManager->SetViewSpaceBox(viewSpaceBox);
|
---|
[1292] | 482 |
|
---|
| 483 | // construct view cells using it's own set of samples
|
---|
| 484 | mViewCellsManager->Construct(this);
|
---|
[1486] | 485 |
|
---|
| 486 | // visualizations and statistics
|
---|
| 487 | Debug << "finished view cells:" << endl;
|
---|
[1292] | 488 | mViewCellsManager->PrintStatistics(Debug);
|
---|
[1486] | 489 |
|
---|
| 490 | return true;
|
---|
[1292] | 491 | }
|
---|
[490] | 492 |
|
---|
[1294] | 493 |
|
---|
[1288] | 494 | HierarchyManager *Preprocessor::CreateHierarchyManager(const char *name)
|
---|
| 495 | {
|
---|
| 496 | HierarchyManager *hierarchyManager;
|
---|
| 497 |
|
---|
| 498 | if (strcmp(name, "osp") == 0)
|
---|
| 499 | {
|
---|
[1291] | 500 | Debug << "hierarchy manager: osp" << endl;
|
---|
[1288] | 501 | // HACK for testing if per kd evaluation works!!
|
---|
[1293] | 502 | const bool ishack = false;
|
---|
[1288] | 503 | if (ishack)
|
---|
[1421] | 504 | hierarchyManager = new HierarchyManager(mKdTree);
|
---|
[1288] | 505 | else
|
---|
[1421] | 506 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
[1288] | 507 | }
|
---|
| 508 | else if (strcmp(name, "bvh") == 0)
|
---|
| 509 | {
|
---|
[1291] | 510 | Debug << "hierarchy manager: bvh" << endl;
|
---|
[1421] | 511 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
[1288] | 512 | }
|
---|
[1291] | 513 | else // only view space partition
|
---|
| 514 | {
|
---|
| 515 | Debug << "hierarchy manager: obj" << endl;
|
---|
[1421] | 516 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
[1291] | 517 | }
|
---|
[1288] | 518 |
|
---|
| 519 | return hierarchyManager;
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 |
|
---|
[575] | 523 | ViewCellsManager *Preprocessor::CreateViewCellsManager(const char *name)
|
---|
| 524 | {
|
---|
[1264] | 525 | ViewCellsTree *vcTree = new ViewCellsTree;
|
---|
| 526 |
|
---|
[575] | 527 | if (strcmp(name, "kdTree") == 0)
|
---|
| 528 | {
|
---|
[1264] | 529 | mViewCellsManager = new KdViewCellsManager(vcTree, mKdTree);
|
---|
[575] | 530 | }
|
---|
| 531 | else if (strcmp(name, "bspTree") == 0)
|
---|
| 532 | {
|
---|
| 533 | Debug << "view cell type: Bsp" << endl;
|
---|
| 534 |
|
---|
[577] | 535 | mBspTree = new BspTree();
|
---|
[1264] | 536 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 537 | }
|
---|
| 538 | else if (strcmp(name, "vspBspTree") == 0)
|
---|
| 539 | {
|
---|
| 540 | Debug << "view cell type: VspBsp" << endl;
|
---|
| 541 |
|
---|
[1004] | 542 | mVspBspTree = new VspBspTree();
|
---|
[1264] | 543 | mViewCellsManager = new VspBspViewCellsManager(vcTree, mVspBspTree);
|
---|
[575] | 544 | }
|
---|
[1006] | 545 | else if (strcmp(name, "vspOspTree") == 0)
|
---|
[575] | 546 | {
|
---|
[1421] | 547 | Debug << "view cell type: VspOsp" << endl;
|
---|
[1288] | 548 | char buf[100];
|
---|
| 549 | Environment::GetSingleton()->GetStringValue("Hierarchy.type", buf);
|
---|
[1022] | 550 |
|
---|
[1288] | 551 | HierarchyManager *mHierarchyManager = CreateHierarchyManager(buf);
|
---|
[1279] | 552 | mViewCellsManager = new VspOspViewCellsManager(vcTree, mHierarchyManager);
|
---|
[575] | 553 | }
|
---|
[1421] | 554 | else if (strcmp(name, "sceneDependent") == 0) //TODO
|
---|
[575] | 555 | {
|
---|
[1143] | 556 | Debug << "view cell type: Bsp" << endl;
|
---|
[1421] | 557 |
|
---|
[575] | 558 | mBspTree = new BspTree();
|
---|
[1264] | 559 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 560 | }
|
---|
| 561 | else
|
---|
| 562 | {
|
---|
[664] | 563 | cerr << "Wrong view cells type " << name << "!!!" << endl;
|
---|
[575] | 564 | exit(1);
|
---|
| 565 | }
|
---|
| 566 |
|
---|
| 567 | return mViewCellsManager;
|
---|
| 568 | }
|
---|
| 569 |
|
---|
| 570 |
|
---|
[491] | 571 | // use ascii format to store rays
|
---|
| 572 | #define USE_ASCII 0
|
---|
| 573 |
|
---|
| 574 |
|
---|
[1145] | 575 | static inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
[490] | 576 | {
|
---|
| 577 | return obj1->mId < obj2->mId;
|
---|
| 578 | }
|
---|
| 579 |
|
---|
| 580 |
|
---|
[1414] | 581 | bool Preprocessor::LoadKdTree(const string filename)
|
---|
[1197] | 582 | {
|
---|
[1414] | 583 | mKdTree = new KdTree();
|
---|
| 584 | return mKdTree->LoadBinTree(filename.c_str(), mObjects);
|
---|
[1197] | 585 | }
|
---|
| 586 |
|
---|
[1414] | 587 |
|
---|
| 588 | bool Preprocessor::ExportKdTree(const string filename)
|
---|
[1197] | 589 | {
|
---|
[1414] | 590 | return mKdTree->ExportBinTree(filename.c_str());
|
---|
[1197] | 591 | }
|
---|
| 592 |
|
---|
| 593 |
|
---|
[490] | 594 | bool Preprocessor::LoadSamples(VssRayContainer &samples,
|
---|
| 595 | ObjectContainer &objects) const
|
---|
| 596 | {
|
---|
| 597 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
| 598 | char fileName[100];
|
---|
[1004] | 599 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[490] | 600 |
|
---|
[491] | 601 | Vector3 origin, termination;
|
---|
| 602 | // HACK: needed only for lower_bound algorithm to find the
|
---|
| 603 | // intersected objects
|
---|
| 604 | MeshInstance sObj(NULL);
|
---|
| 605 | MeshInstance tObj(NULL);
|
---|
[490] | 606 |
|
---|
[491] | 607 | #if USE_ASCII
|
---|
[656] | 608 | ifstream samplesIn(fileName);
|
---|
[490] | 609 | if (!samplesIn.is_open())
|
---|
| 610 | return false;
|
---|
| 611 |
|
---|
| 612 | string buf;
|
---|
| 613 | while (!(getline(samplesIn, buf)).eof())
|
---|
| 614 | {
|
---|
[491] | 615 | sscanf(buf.c_str(), "%f %f %f %f %f %f %d %d",
|
---|
[490] | 616 | &origin.x, &origin.y, &origin.z,
|
---|
[491] | 617 | &termination.x, &termination.y, &termination.z,
|
---|
| 618 | &(sObj.mId), &(tObj.mId));
|
---|
[490] | 619 |
|
---|
[491] | 620 | Intersectable *sourceObj = NULL;
|
---|
| 621 | Intersectable *termObj = NULL;
|
---|
| 622 |
|
---|
| 623 | if (sObj.mId >= 0)
|
---|
[490] | 624 | {
|
---|
| 625 | ObjectContainer::iterator oit =
|
---|
[491] | 626 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 627 | sourceObj = *oit;
|
---|
| 628 | }
|
---|
| 629 |
|
---|
| 630 | if (tObj.mId >= 0)
|
---|
| 631 | {
|
---|
| 632 | ObjectContainer::iterator oit =
|
---|
| 633 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 634 | termObj = *oit;
|
---|
| 635 | }
|
---|
[490] | 636 |
|
---|
[491] | 637 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
| 638 | }
|
---|
| 639 | #else
|
---|
| 640 | ifstream samplesIn(fileName, ios::binary);
|
---|
| 641 | if (!samplesIn.is_open())
|
---|
| 642 | return false;
|
---|
| 643 |
|
---|
| 644 | while (1)
|
---|
| 645 | {
|
---|
| 646 | samplesIn.read(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 647 | samplesIn.read(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 648 | samplesIn.read(reinterpret_cast<char *>(&(sObj.mId)), sizeof(int));
|
---|
| 649 | samplesIn.read(reinterpret_cast<char *>(&(tObj.mId)), sizeof(int));
|
---|
| 650 |
|
---|
| 651 | if (samplesIn.eof())
|
---|
| 652 | break;
|
---|
| 653 |
|
---|
| 654 | Intersectable *sourceObj = NULL;
|
---|
| 655 | Intersectable *termObj = NULL;
|
---|
| 656 |
|
---|
| 657 | if (sObj.mId >= 0)
|
---|
| 658 | {
|
---|
| 659 | ObjectContainer::iterator oit =
|
---|
| 660 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 661 | sourceObj = *oit;
|
---|
[490] | 662 | }
|
---|
[491] | 663 |
|
---|
| 664 | if (tObj.mId >= 0)
|
---|
[490] | 665 | {
|
---|
[491] | 666 | ObjectContainer::iterator oit =
|
---|
| 667 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 668 | termObj = *oit;
|
---|
[490] | 669 | }
|
---|
[491] | 670 |
|
---|
| 671 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
[490] | 672 | }
|
---|
[491] | 673 |
|
---|
| 674 | #endif
|
---|
[490] | 675 | samplesIn.close();
|
---|
| 676 |
|
---|
| 677 | return true;
|
---|
| 678 | }
|
---|
| 679 |
|
---|
[508] | 680 |
|
---|
| 681 | bool Preprocessor::ExportSamples(const VssRayContainer &samples) const
|
---|
[490] | 682 | {
|
---|
[491] | 683 | char fileName[100];
|
---|
[1004] | 684 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[491] | 685 |
|
---|
[490] | 686 |
|
---|
| 687 | VssRayContainer::const_iterator it, it_end = samples.end();
|
---|
| 688 |
|
---|
[491] | 689 | #if USE_ASCII
|
---|
| 690 | ofstream samplesOut(fileName);
|
---|
[490] | 691 | if (!samplesOut.is_open())
|
---|
| 692 | return false;
|
---|
| 693 |
|
---|
| 694 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 695 | {
|
---|
| 696 | VssRay *ray = *it;
|
---|
[491] | 697 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 698 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 699 |
|
---|
[490] | 700 | samplesOut << ray->GetOrigin().x << " " << ray->GetOrigin().y << " " << ray->GetOrigin().z << " "
|
---|
| 701 | << ray->GetTermination().x << " " << ray->GetTermination().y << " " << ray->GetTermination().z << " "
|
---|
[491] | 702 | << sourceid << " " << termid << "\n";
|
---|
[490] | 703 | }
|
---|
[491] | 704 | #else
|
---|
| 705 | ofstream samplesOut(fileName, ios::binary);
|
---|
| 706 | if (!samplesOut.is_open())
|
---|
| 707 | return false;
|
---|
| 708 |
|
---|
| 709 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 710 | {
|
---|
| 711 | VssRay *ray = *it;
|
---|
| 712 | Vector3 origin(ray->GetOrigin());
|
---|
| 713 | Vector3 termination(ray->GetTermination());
|
---|
| 714 |
|
---|
| 715 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 716 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 717 |
|
---|
| 718 | samplesOut.write(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 719 | samplesOut.write(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 720 | samplesOut.write(reinterpret_cast<char *>(&sourceid), sizeof(int));
|
---|
| 721 | samplesOut.write(reinterpret_cast<char *>(&termid), sizeof(int));
|
---|
| 722 | }
|
---|
| 723 | #endif
|
---|
[490] | 724 | samplesOut.close();
|
---|
[1194] | 725 |
|
---|
[490] | 726 | return true;
|
---|
| 727 | }
|
---|
[563] | 728 |
|
---|
[1020] | 729 | bool Preprocessor::GenerateRays(const int number,
|
---|
| 730 | const int sampleType,
|
---|
| 731 | SimpleRayContainer &rays)
|
---|
| 732 | {
|
---|
| 733 | const int startSize = (int)rays.size();
|
---|
| 734 | SamplingStrategy *strategy = GenerateSamplingStrategy(sampleType);
|
---|
[860] | 735 |
|
---|
[1020] | 736 | if (!strategy)
|
---|
[1381] | 737 | {
|
---|
[1020] | 738 | return false;
|
---|
[1381] | 739 | }
|
---|
[1020] | 740 |
|
---|
| 741 | for (int i=0; (int)rays.size() - startSize < number; ++ i)
|
---|
| 742 | {
|
---|
| 743 | SimpleRay newRay;
|
---|
| 744 |
|
---|
[1381] | 745 | if (strategy->GenerateSample(newRay))
|
---|
| 746 | {
|
---|
| 747 | #if 1
|
---|
[1020] | 748 | rays.AddRay(newRay);
|
---|
[1381] | 749 | #else
|
---|
| 750 | GenerateRayBundle(rays, newRay, 16, 0);
|
---|
| 751 | #endif
|
---|
| 752 | }
|
---|
[1020] | 753 | }
|
---|
| 754 |
|
---|
| 755 | delete strategy;
|
---|
| 756 | return true;
|
---|
[878] | 757 | }
|
---|
[1020] | 758 |
|
---|
| 759 |
|
---|
| 760 | SamplingStrategy *Preprocessor::GenerateSamplingStrategy(const int strategyId) const
|
---|
| 761 | {
|
---|
| 762 | switch (strategyId)
|
---|
| 763 | {
|
---|
[1520] | 764 | case SamplingStrategy::OBJECT_BASED_DISTRIBUTION:
|
---|
[1020] | 765 | return new ObjectBasedDistribution(*this);
|
---|
[1520] | 766 | case SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 767 | return new ObjectDirectionBasedDistribution(*this);
|
---|
[1520] | 768 | case SamplingStrategy::DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 769 | return new DirectionBasedDistribution(*this);
|
---|
[1520] | 770 | case SamplingStrategy::DIRECTION_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 771 | return new DirectionBoxBasedDistribution(*this);
|
---|
[1520] | 772 | case SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 773 | return new SpatialBoxBasedDistribution(*this);
|
---|
[1021] | 774 | //case OBJECTS_INTERIOR_DISTRIBUTION:
|
---|
| 775 | // return new ObjectsInteriorDistribution(*this);
|
---|
[1020] | 776 | default: // no valid strategy
|
---|
[1279] | 777 | Debug << "warning: no valid sampling strategy" << endl;
|
---|
[1020] | 778 | return NULL;
|
---|
| 779 | }
|
---|
[1221] | 780 |
|
---|
[1020] | 781 | // should never come here
|
---|
| 782 | return NULL;
|
---|
| 783 | }
|
---|
| 784 |
|
---|
| 785 |
|
---|
[1418] | 786 | bool Preprocessor::InitRayCast(const string externKdTree, const string internkdtree)
|
---|
[1221] | 787 | {
|
---|
[1418] | 788 | bool loadKdTree;
|
---|
[1415] | 789 | Environment::GetSingleton()->GetBoolValue("Preprocessor.loadKdTree", loadKdTree);
|
---|
| 790 |
|
---|
| 791 | if (!loadKdTree)
|
---|
[1418] | 792 | {
|
---|
[1415] | 793 | //-- build new kd tree from scene geometry
|
---|
| 794 | BuildKdTree();
|
---|
| 795 | KdTreeStatistics(cout);
|
---|
| 796 | }
|
---|
| 797 | else
|
---|
| 798 | {
|
---|
| 799 | const long startTime = GetTime();
|
---|
[1418] | 800 | cout << "loading kd tree file " << internkdtree << " ... ";
|
---|
[1415] | 801 |
|
---|
[1418] | 802 | if (!LoadKdTree(internkdtree))
|
---|
[1415] | 803 | {
|
---|
[1418] | 804 | cout << "error loading kd tree with filename " << internkdtree << ", rebuilding it instead ..." << endl;
|
---|
| 805 |
|
---|
| 806 | BuildKdTree();
|
---|
| 807 | KdTreeStatistics(cout);
|
---|
[1415] | 808 | }
|
---|
[1416] | 809 |
|
---|
[1415] | 810 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 811 |
|
---|
| 812 | if (0)
|
---|
| 813 | {
|
---|
| 814 | Exporter *exporter = Exporter::GetExporter("dummykd.x3d");
|
---|
| 815 |
|
---|
| 816 | if (exporter)
|
---|
| 817 | {
|
---|
| 818 | exporter->ExportKdTree(*mKdTree, true);
|
---|
| 819 | delete exporter;
|
---|
| 820 | }
|
---|
| 821 | }
|
---|
| 822 | }
|
---|
| 823 |
|
---|
[1520] | 824 | int rayCastMethod;
|
---|
| 825 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
|
---|
| 826 |
|
---|
| 827 | if (rayCastMethod == 0)
|
---|
[1221] | 828 | {
|
---|
[1520] | 829 | mRayCaster = new InternalRayCaster(*this, mKdTree);
|
---|
| 830 | cout << "ray cast method: internal" << endl;
|
---|
[1221] | 831 | }
|
---|
[1251] | 832 | else
|
---|
[1520] | 833 | {
|
---|
| 834 | mRayCaster = new IntelRayCaster(*this, externKdTree);
|
---|
| 835 | cout << "ray cast method: intel" << endl;
|
---|
[1251] | 836 | }
|
---|
| 837 |
|
---|
[1520] | 838 | return true;
|
---|
[1281] | 839 | }
|
---|
| 840 |
|
---|
[1292] | 841 |
|
---|
[1281] | 842 | void
|
---|
| 843 | Preprocessor::CastRays(
|
---|
| 844 | SimpleRayContainer &rays,
|
---|
[1520] | 845 | VssRayContainer &vssRays,
|
---|
| 846 | const bool castDoubleRays
|
---|
[1281] | 847 | )
|
---|
| 848 | {
|
---|
[1520] | 849 | long t1 = GetTime();
|
---|
[1344] | 850 |
|
---|
[1520] | 851 | if (castDoubleRays)
|
---|
[1292] | 852 | {
|
---|
[1520] | 853 | for (int i = 0; i < (int)rays.size(); )
|
---|
| 854 | {
|
---|
| 855 | if (i + 16 < (int)rays.size())
|
---|
| 856 | {
|
---|
| 857 | mRayCaster->CastRays16(
|
---|
| 858 | i,
|
---|
| 859 | rays,
|
---|
| 860 | vssRays,
|
---|
| 861 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 862 | castDoubleRays);
|
---|
| 863 | i += 16;
|
---|
| 864 | }
|
---|
| 865 | else
|
---|
| 866 | {
|
---|
| 867 | mRayCaster->CastRay(
|
---|
| 868 | rays[i].mOrigin,
|
---|
| 869 | rays[i].mDirection,
|
---|
| 870 | rays[i].mPdf,
|
---|
| 871 | vssRays,
|
---|
| 872 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 873 | castDoubleRays);
|
---|
| 874 | i++;
|
---|
| 875 | }
|
---|
| 876 |
|
---|
| 877 | if (i % 10000 == 0)
|
---|
| 878 | cout<<".";
|
---|
[1292] | 879 | }
|
---|
[1294] | 880 |
|
---|
[1520] | 881 | long t2 = GetTime();
|
---|
[1286] | 882 |
|
---|
[1520] | 883 | if (castDoubleRays)
|
---|
| 884 | cout << 2 * rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
| 885 | else
|
---|
| 886 | cout << rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
[1251] | 887 | }
|
---|
[1520] | 888 |
|
---|
[1251] | 889 | }
|
---|
| 890 |
|
---|
| 891 |
|
---|
[1381] | 892 | bool Preprocessor::GenerateRayBundle(SimpleRayContainer &rayBundle,
|
---|
| 893 | const SimpleRay &mainRay,
|
---|
| 894 | const int number,
|
---|
| 895 | const int pertubType) const
|
---|
| 896 | {
|
---|
| 897 | rayBundle.push_back(mainRay);
|
---|
| 898 |
|
---|
| 899 | const float pertubOrigin = 10.0f;
|
---|
| 900 | const float pertubDir = 0.0f;
|
---|
| 901 |
|
---|
| 902 | for (int i = 0; i < number - 1; ++ i)
|
---|
| 903 | {
|
---|
| 904 | Vector3 pertub;
|
---|
| 905 |
|
---|
| 906 | pertub.x = RandomValue(0.0f, pertubDir);
|
---|
| 907 | pertub.y = RandomValue(0.0f, pertubDir);
|
---|
| 908 | pertub.z = RandomValue(0.0f, pertubDir);
|
---|
| 909 | const Vector3 newDir = mainRay.mDirection + pertub;
|
---|
| 910 | //const Vector3 newDir = mainRay.mDirection;
|
---|
| 911 |
|
---|
| 912 | pertub.x = RandomValue(0.0f, pertubOrigin);
|
---|
| 913 | pertub.y = RandomValue(0.0f, pertubOrigin);
|
---|
| 914 | pertub.z = RandomValue(0.0f, pertubOrigin);
|
---|
| 915 | const Vector3 newOrigin = mainRay.mOrigin + pertub;
|
---|
| 916 | //const Vector3 newOrigin = mainRay.mOrigin;
|
---|
| 917 |
|
---|
| 918 | rayBundle.push_back(SimpleRay(newOrigin, newDir, 0));
|
---|
| 919 | }
|
---|
| 920 |
|
---|
| 921 | return true;
|
---|
| 922 | }
|
---|
| 923 |
|
---|
| 924 |
|
---|
[1251] | 925 | void Preprocessor::SetupRay(Ray &ray,
|
---|
| 926 | const Vector3 &point,
|
---|
| 927 | const Vector3 &direction
|
---|
[1520] | 928 | ) const
|
---|
[1251] | 929 | {
|
---|
| 930 | ray.Clear();
|
---|
| 931 | // do not store anything else then intersections at the ray
|
---|
| 932 | ray.Init(point, direction, Ray::LOCAL_RAY);
|
---|
| 933 | }
|
---|
| 934 |
|
---|
[1520] | 935 |
|
---|
[1251] | 936 | }
|
---|