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