[372] | 1 | #include "SceneGraph.h"
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| 2 | #include "Exporter.h"
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| 3 | #include "UnigraphicsParser.h"
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| 4 | #include "X3dParser.h"
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| 5 | #include "Preprocessor.h"
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| 6 | #include "ViewCell.h"
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| 7 | #include "Environment.h"
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[439] | 8 | #include "ViewCellsManager.h"
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[445] | 9 | #include "ViewCellBsp.h"
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| 10 | #include "VspBspTree.h"
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[469] | 11 | #include "RenderSimulator.h"
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[496] | 12 | #include "GlRenderer.h"
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[749] | 13 | #include "PlyParser.h"
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[1020] | 14 | #include "SamplingStrategy.h"
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[1233] | 15 | #include "VspTree.h"
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| 16 | #include "OspTree.h"
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[1221] | 17 | #include "ObjParser.h"
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[1264] | 18 | #include "BvHierarchy.h"
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[1279] | 19 | #include "HierarchyManager.h"
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[1287] | 20 | #include "VssRay.h"
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[1520] | 21 | #include "IntelRayCaster.h"
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| 22 | #include "InternalRayCaster.h"
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[1264] | 23 |
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[1287] | 24 |
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[372] | 25 |
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[1292] | 26 | #define DEBUG_RAYCAST 0
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[1584] | 27 | #define SHOW_RAYCAST_TIMING 1
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[1292] | 28 |
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| 29 |
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[863] | 30 | namespace GtpVisibilityPreprocessor {
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[860] | 31 |
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[1020] | 32 | const static bool ADDITIONAL_GEOMETRY_HACK = false;
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[860] | 33 |
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[492] | 34 |
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[1001] | 35 | // HACK: Artificially modify scene to watch rendercost changes
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[750] | 36 | static void AddGeometry(SceneGraph *scene)
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| 37 | {
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[1328] | 38 | scene->GetRoot()->UpdateBox();
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[752] | 39 |
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[750] | 40 | AxisAlignedBox3 sceneBox = scene->GetBox();
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| 41 |
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| 42 | int n = 200;
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| 43 |
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[1291] | 44 | if (0)
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[750] | 45 | {
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[1291] | 46 | // form grid of boxes
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| 47 | for (int i = 0; i < n; ++ i)
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[750] | 48 | {
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[1291] | 49 | for (int j = 0; j < n; ++ j)
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| 50 | {
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| 51 | const Vector3 scale2((float)j * 0.8f / n + 0.1f, 0.05f, (float)i * 0.8f / (float)n + 0.1f);
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[750] | 52 |
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[1291] | 53 | const Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 54 |
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| 55 | const Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 56 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 57 | Mesh *mesh = CreateMeshFromBox(box);
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| 58 |
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| 59 | mesh->Preprocess();
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| 60 |
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| 61 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 62 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 63 | }
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[750] | 64 | }
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| 65 |
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[1291] | 66 | for (int i = 0; i < n; ++ i)
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[750] | 67 | {
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[1291] | 68 | for (int j = 0; j < n; ++ j)
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| 69 | {
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| 70 | const Vector3 scale2(0.15f, (float)j * 0.8f / n + 0.1f, (float)i * 0.8f / (float)n + 0.1f);
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| 71 |
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| 72 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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| 73 |
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| 74 | Vector3 boxSize = sceneBox.Size() * Vector3(0.0025f, 0.01f, 0.0025f);
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| 75 | AxisAlignedBox3 box(pt2, pt2 + boxSize);
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| 76 | Mesh *mesh = CreateMeshFromBox(box);
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| 77 |
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| 78 | mesh->Preprocess();
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| 79 |
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| 80 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 81 | scene->GetRoot()->mGeometry.push_back(mi);
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[1291] | 82 | }
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| 83 | }
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| 84 |
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| 85 | for (int i = 0; i < n; ++ i)
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| 86 | {
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| 87 | const Vector3 scale2(2, 0.2f, (float)i * 0.8f / (float)n + 0.1f);
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| 88 |
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[750] | 89 | Vector3 pt2 = sceneBox.Min() + scale2 * (sceneBox.Max() - sceneBox.Min());
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[1291] | 90 | Vector3 boxSize = sceneBox.Size() * Vector3(0.005f, 0.02f, 0.005f);
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| 91 |
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| 92 | AxisAlignedBox3 box(pt2 + 0.1f, pt2 + boxSize);
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[991] | 93 | Mesh *mesh = CreateMeshFromBox(box);
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[750] | 94 |
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| 95 | mesh->Preprocess();
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[1291] | 96 |
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[750] | 97 | MeshInstance *mi = new MeshInstance(mesh);
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[1328] | 98 | scene->GetRoot()->mGeometry.push_back(mi);
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[750] | 99 | }
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[1291] | 100 |
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[1328] | 101 | scene->GetRoot()->UpdateBox();
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[750] | 102 | }
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| 103 |
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[840] | 104 | if (1)
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| 105 | {
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[1221] | 106 | // plane separating view space regions
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[1135] | 107 | const Vector3 scale(1.0f, 0.0, 0);
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[750] | 108 |
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[840] | 109 | Vector3 pt = sceneBox.Min() + scale * (sceneBox.Max() - sceneBox.Min());
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[750] | 110 |
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[840] | 111 | Plane3 cuttingPlane(Vector3(1, 0, 0), pt);
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| 112 | Mesh *planeMesh = new Mesh();
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[1291] | 113 |
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[840] | 114 | Polygon3 *poly = sceneBox.CrossSection(cuttingPlane);
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| 115 | IncludePolyInMesh(*poly, *planeMesh);
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[1291] | 116 |
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[840] | 117 | planeMesh->Preprocess();
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[1291] | 118 |
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[840] | 119 | MeshInstance *planeMi = new MeshInstance(planeMesh);
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[1328] | 120 | scene->GetRoot()->mGeometry.push_back(planeMi);
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[840] | 121 | }
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[750] | 122 | }
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| 123 |
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| 124 |
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[372] | 125 | Preprocessor::Preprocessor():
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| 126 | mKdTree(NULL),
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[409] | 127 | mBspTree(NULL),
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[445] | 128 | mVspBspTree(NULL),
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[1279] | 129 | mHierarchyManager(NULL),
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[1002] | 130 | mViewCellsManager(NULL),
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[1251] | 131 | mRenderSimulator(NULL),
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[1279] | 132 | mPass(0),
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[1520] | 133 | mSceneGraph(NULL),
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[1613] | 134 | mRayCaster(NULL),
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| 135 | mStopComputation(false)
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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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[1613] | 142 | Environment::GetSingleton()->GetBoolValue("Preprocessor.delayVisibilityComputation",
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| 143 | mDelayVisibilityComputation);
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| 144 |
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[1004] | 145 | Environment::GetSingleton()->GetBoolValue("Preprocessor.useGlDebugger", mUseGlDebugger);
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[1379] | 146 | Environment::GetSingleton()->GetBoolValue("Preprocessor.loadMeshes", mLoadMeshes);
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[1004] | 147 | Environment::GetSingleton()->GetBoolValue("Preprocessor.quitOnFinish", mQuitOnFinish);
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| 148 | Environment::GetSingleton()->GetBoolValue("Preprocessor.computeVisibility", mComputeVisibility);
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| 149 | Environment::GetSingleton()->GetBoolValue("Preprocessor.detectEmptyViewSpace", mDetectEmptyViewSpace);
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| 150 | Environment::GetSingleton()->GetBoolValue("Preprocessor.exportVisibility", mExportVisibility );
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[1520] | 151 |
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[871] | 152 | char buffer[256];
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[1004] | 153 | Environment::GetSingleton()->GetStringValue("Preprocessor.visibilityFile", buffer);
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[1415] | 154 |
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[871] | 155 | mVisibilityFileName = buffer;
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[1004] | 156 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilityFilter", mApplyVisibilityFilter );
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| 157 | Environment::GetSingleton()->GetBoolValue("Preprocessor.applyVisibilitySpatialFilter",
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[1695] | 158 | mApplyVisibilitySpatialFilter );
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[1004] | 159 | Environment::GetSingleton()->GetFloatValue("Preprocessor.visibilityFilterWidth", mVisibilityFilterWidth);
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[878] | 160 |
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[1695] | 161 | Environment::GetSingleton()->GetBoolValue("Preprocessor.exportObj", mExportObj);
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| 162 |
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| 163 | Debug << "******* Preprocessor Options **********" << endl;
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[840] | 164 | Debug << "detect empty view space=" << mDetectEmptyViewSpace << endl;
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[1379] | 165 | Debug << "load meshes: " << mLoadMeshes << endl;
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[1695] | 166 | Debug << "load meshes: " << mLoadMeshes << endl;
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| 167 | Debug << "export obj: " << mExportObj << endl;
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[372] | 168 | }
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| 169 |
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| 170 |
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| 171 | Preprocessor::~Preprocessor()
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| 172 | {
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[1291] | 173 | cout << "cleaning up" << endl;
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[752] | 174 |
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[1291] | 175 | cout << "Deleting view cells manager ... \n";
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| 176 | DEL_PTR(mViewCellsManager);
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| 177 | cout << "done.\n";
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[752] | 178 |
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[1291] | 179 | cout << "Deleting bsp tree ... \n";
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| 180 | DEL_PTR(mBspTree);
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| 181 | cout << "done.\n";
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[752] | 182 |
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[1291] | 183 | cout << "Deleting kd tree...\n";
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| 184 | DEL_PTR(mKdTree);
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| 185 | cout << "done.\n";
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[752] | 186 |
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[1291] | 187 | cout << "Deleting hierarchy manager...\n";
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| 188 | DEL_PTR(mHierarchyManager);
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| 189 | cout << "done.\n";
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[1002] | 190 |
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[1291] | 191 | cout << "Deleting vspbsp tree...\n";
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| 192 | DEL_PTR(mVspBspTree);
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| 193 | cout << "done.\n";
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[1002] | 194 |
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[1291] | 195 | cout << "Deleting scene graph...\n";
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| 196 | DEL_PTR(mSceneGraph);
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| 197 | cout << "done.\n";
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| 198 |
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| 199 | DEL_PTR(mRenderSimulator);
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| 200 | DEL_PTR(renderer);
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[1523] | 201 | DEL_PTR(mRayCaster);
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[372] | 202 | }
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| 203 |
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[1521] | 204 |
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| 205 | GlRendererBuffer *Preprocessor::GetRenderer()
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| 206 | {
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| 207 | return renderer;
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| 208 | }
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| 209 |
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| 210 |
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| 211 | static int SplitFilenames(const string str, vector<string> &filenames)
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[387] | 212 | {
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| 213 | int pos = 0;
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| 214 |
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| 215 | while(1) {
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[469] | 216 | int npos = (int)str.find(';', pos);
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[387] | 217 |
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| 218 | if (npos < 0 || npos - pos < 1)
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| 219 | break;
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| 220 | filenames.push_back(string(str, pos, npos - pos));
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| 221 | pos = npos + 1;
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| 222 | }
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| 223 |
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| 224 | filenames.push_back(string(str, pos, str.size() - pos));
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[440] | 225 | return (int)filenames.size();
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[387] | 226 | }
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| 227 |
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[750] | 228 |
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[1655] | 229 | bool Preprocessor::LoadBinaryObj(const string filename,
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| 230 | SceneGraphNode *root,
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| 231 | vector<FaceParentInfo> *parents)
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| 232 | {
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[1658] | 233 | //ifstream samplesIn(filename, ios::binary);
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| 234 | igzstream samplesIn(filename.c_str());
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| 235 |
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[1655] | 236 | if (!samplesIn.is_open())
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| 237 | return false;
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| 238 |
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[1658] | 239 | cout << "binary obj dump available, loading " << filename.c_str() << endl;
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[1655] | 240 | // table associating indices with vectors
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| 241 | map<int, Vector3> hashTable;
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[1658] | 242 |
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[1655] | 243 | // table for vertices
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| 244 | VertexContainer vertices;
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| 245 | FaceContainer faces;
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| 246 |
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| 247 | while (1)
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| 248 | {
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| 249 | Triangle3 tri;
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| 250 |
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| 251 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 0), sizeof(Vector3));
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| 252 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 1), sizeof(Vector3));
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| 253 | samplesIn.read(reinterpret_cast<char *>(tri.mVertices + 2), sizeof(Vector3));
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| 254 |
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| 255 | // end of file reached
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| 256 | if (samplesIn.eof())
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| 257 | break;
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| 258 |
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| 259 | TriangleIntersectable *obj = new TriangleIntersectable(tri);
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| 260 | root->mGeometry.push_back(obj);
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| 261 |
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| 262 | // matt: we don't really need to keep an additional data structure
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| 263 | // if working with triangles => remove this
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| 264 | if (parents)
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| 265 | {
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| 266 | FaceParentInfo info(obj, 0);
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| 267 | parents->push_back(info);
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| 268 | }
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| 269 | }
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| 270 |
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| 271 | return true;
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| 272 | }
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| 273 |
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| 274 |
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[1658] | 275 | bool Preprocessor::ExportBinaryObj(const string filename, SceneGraphNode *root)
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| 276 | {
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| 277 | //ifstream samplesIn(filename, ios::binary);
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| 278 | ogzstream samplesOut(filename.c_str());
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| 279 | if (!samplesOut.is_open())
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| 280 | return false;
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| 281 |
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| 282 | ObjectContainer::const_iterator oit, oit_end = root->mGeometry.end();
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| 283 |
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| 284 | for (oit = root->mGeometry.begin(); oit != oit_end; ++ oit)
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| 285 | {
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| 286 | Intersectable *obj = *oit;
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| 287 |
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| 288 | if (obj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
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| 289 | {
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| 290 | Triangle3 tri = dynamic_cast<TriangleIntersectable *>(obj)->GetItem();
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| 291 |
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| 292 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 0), sizeof(Vector3));
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| 293 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 1), sizeof(Vector3));
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| 294 | samplesOut.write(reinterpret_cast<char *>(tri.mVertices + 2), sizeof(Vector3));
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| 295 | }
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| 296 | else
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| 297 | {
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| 298 | cout << "not implemented intersectable type " << obj->Type() << endl;
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| 299 | }
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| 300 | }
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| 301 |
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| 302 | return true;
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| 303 | }
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| 304 |
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[1695] | 305 |
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| 306 | bool Preprocessor::ExportObj(const string filename, const ObjectContainer &objects)
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| 307 | {
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| 308 | ofstream samplesOut(filename.c_str());
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| 309 |
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| 310 | if (!samplesOut.is_open())
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| 311 | return false;
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| 312 |
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| 313 | ObjectContainer::const_iterator oit, oit_end = objects.end();
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| 314 |
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[1713] | 315 | AxisAlignedBox3 bbox = mSceneGraph->GetBox(); bbox.Enlarge(30.0);
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[1695] | 316 | for (oit = objects.begin(); oit != oit_end; ++ oit)
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| 317 | {
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| 318 | Intersectable *obj = *oit;
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| 319 |
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| 320 | if (obj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
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| 321 | {
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| 322 | Triangle3 tri = dynamic_cast<TriangleIntersectable *>(obj)->GetItem();
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[1701] | 323 | //if (bbox.IsInside(tri.mVertices[0]) && bbox.IsInside(tri.mVertices[1]) && bbox.IsInside(tri.mVertices[2]))
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| 324 | //{
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[1713] | 325 | samplesOut << "v " << tri.mVertices[0].x << " " << tri.mVertices[0].y << " " << tri.mVertices[0].z << endl;
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| 326 | samplesOut << "v " << tri.mVertices[1].x << " " << tri.mVertices[1].y << " " << tri.mVertices[1].z << endl;
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| 327 | samplesOut << "v " << tri.mVertices[2].x << " " << tri.mVertices[2].y << " " << tri.mVertices[2].z << endl;
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[1701] | 328 | //}
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[1695] | 329 | }
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| 330 | else
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| 331 | {
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| 332 | cout << "not implemented intersectable type " << obj->Type() << endl;
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| 333 | }
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| 334 | }
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| 335 |
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| 336 | // write faces
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| 337 | int i = 1;
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[1713] | 338 | for (oit = objects.begin(); oit != oit_end; ++ oit)
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[1695] | 339 | {
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| 340 | Intersectable *obj = *oit;
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| 341 | if (obj->Type() == Intersectable::TRIANGLE_INTERSECTABLE)
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| 342 | {
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[1713] | 343 | //Triangle3 tri = dynamic_cast<TriangleIntersectable *>(obj)->GetItem();
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| 344 | //if (bbox.IsInside(tri.mVertices[0]) && bbox.IsInside(tri.mVertices[1]) && bbox.IsInside(tri.mVertices[2]))
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| 345 | //{
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| 346 | Triangle3 tri = dynamic_cast<TriangleIntersectable *>(obj)->GetItem();
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| 347 | samplesOut << "f " << i << " " << i + 1 << " " << i + 2 << endl;
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| 348 | i += 3;
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| 349 | //}
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[1695] | 350 | }
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| 351 | else
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| 352 | {
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| 353 | cout << "not implemented intersectable type " << obj->Type() << endl;
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| 354 | }
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| 355 | }
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| 356 |
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| 357 | return true;
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| 358 |
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| 359 | }
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| 360 |
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[1658] | 361 | static string ReplaceSuffix(string filename, string a, string b)
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| 362 | {
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| 363 | string result = filename;
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| 364 |
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| 365 | int pos = (int)filename.rfind(a, (int)filename.size() - 1);
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| 366 | if (pos == filename.size() - a.size()) {
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| 367 | result.replace(pos, a.size(), b);
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| 368 | }
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| 369 | return result;
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| 370 | }
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| 371 |
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| 372 |
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[372] | 373 | bool
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| 374 | Preprocessor::LoadScene(const string filename)
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| 375 | {
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[1655] | 376 | // use leaf nodes of the original spatial hierarchy as occludees
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[508] | 377 | mSceneGraph = new SceneGraph;
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[372] | 378 |
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[508] | 379 | Parser *parser;
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[387] | 380 | vector<string> filenames;
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[1404] | 381 | const int files = SplitFilenames(filename, filenames);
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[712] | 382 | cout << "number of input files: " << files << endl;
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[387] | 383 | bool result = false;
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[1695] | 384 | bool isObj = false;
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[1344] | 385 |
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| 386 | // root for different files
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| 387 | mSceneGraph->SetRoot(new SceneGraphNode());
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| 388 |
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[1404] | 389 | // intel ray caster can only trace triangles
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[1520] | 390 | int rayCastMethod;
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| 391 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
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| 392 | vector<FaceParentInfo> *fi = (rayCastMethod == RayCaster::INTEL_RAYCASTER) ?
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[1404] | 393 | &mFaceParents : NULL;
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| 394 |
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[1658] | 395 | if (files == 1)
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| 396 | {
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[387] | 397 | if (strstr(filename.c_str(), ".x3d"))
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[1655] | 398 | {
|
---|
| 399 | parser = new X3dParser;
|
---|
[1658] | 400 |
|
---|
| 401 | result = parser->ParseFile(filename,
|
---|
| 402 | mSceneGraph->GetRoot(),
|
---|
| 403 | mLoadMeshes,
|
---|
| 404 | fi);
|
---|
| 405 | delete parser;
|
---|
[1655] | 406 | }
|
---|
[1658] | 407 | else if (strstr(filename.c_str(), ".ply") || strstr(filename.c_str(), ".plb"))
|
---|
[1655] | 408 | {
|
---|
[1658] | 409 | parser = new PlyParser;
|
---|
[1655] | 410 |
|
---|
[1658] | 411 | result = parser->ParseFile(filename,
|
---|
| 412 | mSceneGraph->GetRoot(),
|
---|
| 413 | mLoadMeshes,
|
---|
| 414 | fi);
|
---|
| 415 | delete parser;
|
---|
[1655] | 416 | }
|
---|
[1658] | 417 | else if (strstr(filename.c_str(), ".obj"))
|
---|
| 418 | {
|
---|
[1695] | 419 | isObj = true;
|
---|
| 420 |
|
---|
[1658] | 421 | // hack: load binary dump
|
---|
| 422 | string binFile = ReplaceSuffix(filename, ".obj", ".bin");
|
---|
[372] | 423 |
|
---|
[1658] | 424 | if (!mLoadMeshes)
|
---|
| 425 | {
|
---|
| 426 | result = LoadBinaryObj(binFile, mSceneGraph->GetRoot(), fi);
|
---|
| 427 | }
|
---|
| 428 |
|
---|
| 429 | if (!result)
|
---|
| 430 | {
|
---|
| 431 | cout << "no binary dump available or loading full meshes, parsing file" << endl;
|
---|
| 432 | parser = new ObjParser;
|
---|
[1404] | 433 |
|
---|
[1658] | 434 | result = parser->ParseFile(filename,
|
---|
[1655] | 435 | mSceneGraph->GetRoot(),
|
---|
| 436 | mLoadMeshes,
|
---|
| 437 | fi);
|
---|
[1658] | 438 |
|
---|
| 439 | // only works for triangles
|
---|
| 440 | if (!mLoadMeshes)
|
---|
| 441 | {
|
---|
| 442 | cout << "exporting binary obj to " << binFile << "... " << endl;
|
---|
| 443 | ExportBinaryObj(binFile, mSceneGraph->GetRoot());
|
---|
| 444 | cout << "finished" << endl;
|
---|
| 445 | }
|
---|
[1655] | 446 |
|
---|
[1658] | 447 | delete parser;
|
---|
| 448 | }
|
---|
[1660] | 449 | else if (0)
|
---|
[1658] | 450 | {
|
---|
| 451 | ExportBinaryObj("../data/test.bin", mSceneGraph->GetRoot());
|
---|
| 452 | }
|
---|
| 453 | }
|
---|
| 454 | else
|
---|
| 455 | {
|
---|
| 456 | parser = new UnigraphicsParser;
|
---|
| 457 | result = parser->ParseFile(filename,
|
---|
| 458 | mSceneGraph->GetRoot(),
|
---|
| 459 | mLoadMeshes,
|
---|
| 460 | fi);
|
---|
| 461 | delete parser;
|
---|
| 462 | }
|
---|
| 463 |
|
---|
| 464 | cout << filename << endl;
|
---|
[1404] | 465 | }
|
---|
[1658] | 466 | else
|
---|
| 467 | {
|
---|
[1404] | 468 | vector<string>::const_iterator fit, fit_end = filenames.end();
|
---|
[1344] | 469 |
|
---|
[1404] | 470 | for (fit = filenames.begin(); fit != fit_end; ++ fit)
|
---|
| 471 | {
|
---|
| 472 | const string filename = *fit;
|
---|
[1328] | 473 |
|
---|
[1404] | 474 | cout << "parsing file " << filename.c_str() << endl;
|
---|
| 475 | if (strstr(filename.c_str(), ".x3d"))
|
---|
| 476 | parser = new X3dParser;
|
---|
| 477 | else
|
---|
| 478 | parser = new UnigraphicsParser;
|
---|
| 479 |
|
---|
| 480 | SceneGraphNode *node = new SceneGraphNode();
|
---|
[1695] | 481 | const bool success =
|
---|
| 482 | parser->ParseFile(filename, node, mLoadMeshes, fi);
|
---|
[1404] | 483 |
|
---|
| 484 | if (success)
|
---|
| 485 | {
|
---|
| 486 | mSceneGraph->GetRoot()->mChildren.push_back(node);
|
---|
| 487 | result = true; // at least one file parsed
|
---|
| 488 | }
|
---|
| 489 |
|
---|
[1713] | 490 | // temporare hack
|
---|
[1701] | 491 | //if (!strstr(filename.c_str(), "plane")) mSceneGraph->GetRoot()->UpdateBox();
|
---|
| 492 |
|
---|
[1404] | 493 | delete parser;
|
---|
[387] | 494 | }
|
---|
| 495 | }
|
---|
[1344] | 496 |
|
---|
[752] | 497 | if (result)
|
---|
[1344] | 498 | {
|
---|
[752] | 499 | // HACK
|
---|
[1020] | 500 | if (ADDITIONAL_GEOMETRY_HACK)
|
---|
| 501 | AddGeometry(mSceneGraph);
|
---|
[1328] | 502 |
|
---|
[1020] | 503 | mSceneGraph->AssignObjectIds();
|
---|
[1344] | 504 |
|
---|
[1020] | 505 | int intersectables, faces;
|
---|
| 506 | mSceneGraph->GetStatistics(intersectables, faces);
|
---|
[1344] | 507 |
|
---|
[1020] | 508 | cout<<filename<<" parsed successfully."<<endl;
|
---|
| 509 | cout<<"#NUM_OBJECTS (Total numner of objects)\n"<<intersectables<<endl;
|
---|
| 510 | cout<<"#NUM_FACES (Total numner of faces)\n"<<faces<<endl;
|
---|
[1701] | 511 |
|
---|
[1697] | 512 | mObjects.reserve(intersectables);
|
---|
[1020] | 513 | mSceneGraph->CollectObjects(&mObjects);
|
---|
[1713] | 514 |
|
---|
| 515 | // temp hack
|
---|
| 516 | //ExportObj("cropped_vienna.obj", mObjects);
|
---|
| 517 |
|
---|
[1328] | 518 | mSceneGraph->GetRoot()->UpdateBox();
|
---|
[1713] | 519 |
|
---|
| 520 | cout << "finished loading" << endl;
|
---|
[1701] | 521 |
|
---|
[1713] | 522 |
|
---|
[1020] | 523 | if (0)
|
---|
| 524 | {
|
---|
| 525 | Exporter *exporter = Exporter::GetExporter("testload.x3d");
|
---|
| 526 | if (exporter)
|
---|
| 527 | {
|
---|
| 528 | exporter->ExportGeometry(mObjects);
|
---|
| 529 | delete exporter;
|
---|
| 530 | }
|
---|
| 531 | }
|
---|
[387] | 532 | }
|
---|
[1328] | 533 |
|
---|
[492] | 534 | return result;
|
---|
[372] | 535 | }
|
---|
| 536 |
|
---|
| 537 | bool
|
---|
| 538 | Preprocessor::ExportPreprocessedData(const string filename)
|
---|
| 539 | {
|
---|
[1486] | 540 | mViewCellsManager->ExportViewCells(filename, true, mObjects);
|
---|
| 541 | return true;
|
---|
[372] | 542 | }
|
---|
| 543 |
|
---|
[1486] | 544 |
|
---|
[372] | 545 | bool
|
---|
[871] | 546 | Preprocessor::PostProcessVisibility()
|
---|
| 547 | {
|
---|
| 548 |
|
---|
[904] | 549 | if (mApplyVisibilityFilter || mApplyVisibilitySpatialFilter) {
|
---|
[997] | 550 | cout<<"Applying visibility filter ...";
|
---|
[1002] | 551 | cout<<"filter width = " << mVisibilityFilterWidth << endl;
|
---|
[904] | 552 |
|
---|
[1002] | 553 | if (!mViewCellsManager)
|
---|
[1199] | 554 | return false;
|
---|
| 555 |
|
---|
[871] | 556 | mViewCellsManager->ApplyFilter(mKdTree,
|
---|
[904] | 557 | mApplyVisibilityFilter ? mVisibilityFilterWidth : -1.0f,
|
---|
| 558 | mApplyVisibilitySpatialFilter ? mVisibilityFilterWidth : -1.0f);
|
---|
[997] | 559 | cout << "done." << endl;
|
---|
[871] | 560 | }
|
---|
| 561 |
|
---|
| 562 | // export the preprocessed information to a file
|
---|
| 563 | if (mExportVisibility)
|
---|
[1486] | 564 | {
|
---|
| 565 | ExportPreprocessedData(mVisibilityFileName);
|
---|
| 566 | }
|
---|
| 567 |
|
---|
[871] | 568 | return true;
|
---|
| 569 | }
|
---|
| 570 |
|
---|
| 571 |
|
---|
| 572 | bool
|
---|
[372] | 573 | Preprocessor::BuildKdTree()
|
---|
| 574 | {
|
---|
| 575 | mKdTree = new KdTree;
|
---|
[1344] | 576 |
|
---|
[372] | 577 | // add mesh instances of the scene graph to the root of the tree
|
---|
| 578 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot();
|
---|
[1344] | 579 |
|
---|
[372] | 580 | mSceneGraph->CollectObjects(&root->mObjects);
|
---|
[1344] | 581 |
|
---|
[1415] | 582 | const long startTime = GetTime();
|
---|
[1201] | 583 | cout << "building kd tree ... " << endl;
|
---|
[1344] | 584 |
|
---|
[372] | 585 | mKdTree->Construct();
|
---|
[1344] | 586 |
|
---|
[1415] | 587 | cout << "finished kd tree construction in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 588 | << " secs " << endl;
|
---|
[1344] | 589 |
|
---|
[372] | 590 | return true;
|
---|
| 591 | }
|
---|
| 592 |
|
---|
[1415] | 593 |
|
---|
[372] | 594 | void
|
---|
| 595 | Preprocessor::KdTreeStatistics(ostream &s)
|
---|
| 596 | {
|
---|
| 597 | s<<mKdTree->GetStatistics();
|
---|
| 598 | }
|
---|
| 599 |
|
---|
| 600 | void
|
---|
| 601 | Preprocessor::BspTreeStatistics(ostream &s)
|
---|
| 602 | {
|
---|
| 603 | s << mBspTree->GetStatistics();
|
---|
| 604 | }
|
---|
| 605 |
|
---|
| 606 | bool
|
---|
| 607 | Preprocessor::Export( const string filename,
|
---|
[492] | 608 | const bool scene,
|
---|
[1545] | 609 | const bool kdtree
|
---|
[492] | 610 | )
|
---|
[372] | 611 | {
|
---|
| 612 | Exporter *exporter = Exporter::GetExporter(filename);
|
---|
| 613 |
|
---|
| 614 | if (exporter) {
|
---|
[1545] | 615 | if (2 && scene)
|
---|
[1328] | 616 | exporter->ExportScene(mSceneGraph->GetRoot());
|
---|
[372] | 617 |
|
---|
[1545] | 618 | if (1 && kdtree) {
|
---|
[372] | 619 | exporter->SetWireframe();
|
---|
| 620 | exporter->ExportKdTree(*mKdTree);
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 | delete exporter;
|
---|
| 624 | return true;
|
---|
| 625 | }
|
---|
| 626 |
|
---|
| 627 | return false;
|
---|
| 628 | }
|
---|
[429] | 629 |
|
---|
[508] | 630 |
|
---|
[463] | 631 | bool Preprocessor::PrepareViewCells()
|
---|
| 632 | {
|
---|
[1523] | 633 | ///////
|
---|
[577] | 634 | //-- parse view cells construction method
|
---|
[1563] | 635 |
|
---|
[1004] | 636 | Environment::GetSingleton()->GetBoolValue("ViewCells.loadFromFile", mLoadViewCells);
|
---|
[577] | 637 | char buf[100];
|
---|
[1585] | 638 |
|
---|
[577] | 639 | if (mLoadViewCells)
|
---|
[997] | 640 | {
|
---|
[1581] | 641 | Environment::GetSingleton()->GetStringValue("ViewCells.filename", buf);
|
---|
[1715] | 642 | cout << "loading view cells from " << buf << endl<<flush;
|
---|
[1581] | 643 |
|
---|
[1593] | 644 | mViewCellsManager = ViewCellsManager::LoadViewCells(buf, &mObjects, true, NULL);
|
---|
[1715] | 645 |
|
---|
| 646 | cout << "view cells loaded." << endl<<flush;
|
---|
| 647 |
|
---|
[1581] | 648 | if (!mViewCellsManager)
|
---|
[1593] | 649 | {
|
---|
| 650 | return false;
|
---|
| 651 | }
|
---|
[577] | 652 | }
|
---|
| 653 | else
|
---|
| 654 | {
|
---|
[1288] | 655 | // parse type of view cell container
|
---|
[1004] | 656 | Environment::GetSingleton()->GetStringValue("ViewCells.type", buf);
|
---|
[1002] | 657 | mViewCellsManager = CreateViewCellsManager(buf);
|
---|
[1112] | 658 |
|
---|
| 659 | // default view space is the extent of the scene
|
---|
[1563] | 660 | AxisAlignedBox3 box = mSceneGraph->GetBox();
|
---|
| 661 |
|
---|
| 662 | if (0)
|
---|
| 663 | {
|
---|
| 664 | // use a small box outside of the scene
|
---|
| 665 | box.Scale(Vector3(0.1f,0.5f,0.5f));
|
---|
| 666 | box.Translate(Vector3(Magnitude(mSceneGraph->GetBox().Size())*0.5f, 0, 0));
|
---|
| 667 | }
|
---|
[1545] | 668 |
|
---|
[1563] | 669 | mViewCellsManager->SetViewSpaceBox(box);
|
---|
| 670 |
|
---|
[1545] | 671 | bool loadVcGeometry;
|
---|
| 672 | Environment::GetSingleton()->GetBoolValue("ViewCells.loadGeometry", loadVcGeometry);
|
---|
| 673 |
|
---|
| 674 | bool extrudeBaseTriangles;
|
---|
| 675 | Environment::GetSingleton()->GetBoolValue("ViewCells.useBaseTrianglesAsGeometry", extrudeBaseTriangles);
|
---|
| 676 |
|
---|
| 677 | char vcGeomFilename[100];
|
---|
| 678 | Environment::GetSingleton()->GetStringValue("ViewCells.geometryFilename", vcGeomFilename);
|
---|
| 679 |
|
---|
[1627] | 680 | if (loadVcGeometry)
|
---|
[1545] | 681 | {
|
---|
[1627] | 682 | if (mViewCellsManager->GetType() == ViewCellsManager::BSP)
|
---|
[1545] | 683 | {
|
---|
[1627] | 684 | if (!mViewCellsManager->LoadViewCellsGeometry(vcGeomFilename, extrudeBaseTriangles))
|
---|
| 685 | {
|
---|
| 686 | cerr << "loading view cells geometry failed" << endl;
|
---|
| 687 | }
|
---|
[1545] | 688 | }
|
---|
[1627] | 689 | else
|
---|
| 690 | {
|
---|
| 691 | cerr << "loading view cells geometry is not implemented for this manager" << endl;
|
---|
| 692 | }
|
---|
[1545] | 693 | }
|
---|
[577] | 694 | }
|
---|
[1112] | 695 |
|
---|
[1486] | 696 | ////////
|
---|
[1523] | 697 | //-- evaluation of render cost heuristics
|
---|
[473] | 698 | float objRenderCost = 0, vcOverhead = 0, moveSpeed = 0;
|
---|
| 699 |
|
---|
[1004] | 700 | Environment::GetSingleton()->GetFloatValue("Simulation.objRenderCost",objRenderCost);
|
---|
| 701 | Environment::GetSingleton()->GetFloatValue("Simulation.vcOverhead", vcOverhead);
|
---|
| 702 | Environment::GetSingleton()->GetFloatValue("Simulation.moveSpeed", moveSpeed);
|
---|
[694] | 703 |
|
---|
[473] | 704 | mRenderSimulator =
|
---|
| 705 | new RenderSimulator(mViewCellsManager, objRenderCost, vcOverhead, moveSpeed);
|
---|
[440] | 706 |
|
---|
[480] | 707 | mViewCellsManager->SetRenderer(mRenderSimulator);
|
---|
[1581] | 708 |
|
---|
[538] | 709 | if (mUseGlRenderer || mUseGlDebugger)
|
---|
[1581] | 710 | {
|
---|
[540] | 711 | // NOTE: render texture should be power of 2 and square
|
---|
| 712 | // renderer must be initialised
|
---|
[1145] | 713 | // $$matt
|
---|
[1581] | 714 | // renderer = new GlRendererBuffer(1024, 768, mSceneGraph, mViewCellsManager, mKdTree);
|
---|
[556] | 715 | // renderer->makeCurrent();
|
---|
[746] | 716 |
|
---|
[1581] | 717 | }
|
---|
| 718 |
|
---|
| 719 | mViewCellsManager->SetPreprocessor(this);
|
---|
[463] | 720 | return true;
|
---|
[490] | 721 | }
|
---|
| 722 |
|
---|
[1292] | 723 |
|
---|
[1563] | 724 | bool Preprocessor::ConstructViewCells()
|
---|
[1292] | 725 | {
|
---|
[1627] | 726 | // construct view cells using it's own set of samples
|
---|
| 727 | mViewCellsManager->Construct(this);
|
---|
| 728 |
|
---|
| 729 | // visualizations and statistics
|
---|
| 730 | Debug << "finished view cells:" << endl;
|
---|
| 731 | mViewCellsManager->PrintStatistics(Debug);
|
---|
| 732 |
|
---|
| 733 | return true;
|
---|
[1292] | 734 | }
|
---|
[490] | 735 |
|
---|
[1294] | 736 |
|
---|
[1288] | 737 | HierarchyManager *Preprocessor::CreateHierarchyManager(const char *name)
|
---|
| 738 | {
|
---|
| 739 | HierarchyManager *hierarchyManager;
|
---|
| 740 |
|
---|
| 741 | if (strcmp(name, "osp") == 0)
|
---|
| 742 | {
|
---|
[1291] | 743 | Debug << "hierarchy manager: osp" << endl;
|
---|
[1288] | 744 | // HACK for testing if per kd evaluation works!!
|
---|
[1293] | 745 | const bool ishack = false;
|
---|
[1288] | 746 | if (ishack)
|
---|
[1421] | 747 | hierarchyManager = new HierarchyManager(mKdTree);
|
---|
[1288] | 748 | else
|
---|
[1421] | 749 | hierarchyManager = new HierarchyManager(HierarchyManager::KD_BASED_OBJ_SUBDIV);
|
---|
[1288] | 750 | }
|
---|
| 751 | else if (strcmp(name, "bvh") == 0)
|
---|
| 752 | {
|
---|
[1291] | 753 | Debug << "hierarchy manager: bvh" << endl;
|
---|
[1421] | 754 | hierarchyManager = new HierarchyManager(HierarchyManager::BV_BASED_OBJ_SUBDIV);
|
---|
[1288] | 755 | }
|
---|
[1291] | 756 | else // only view space partition
|
---|
| 757 | {
|
---|
| 758 | Debug << "hierarchy manager: obj" << endl;
|
---|
[1421] | 759 | hierarchyManager = new HierarchyManager(HierarchyManager::NO_OBJ_SUBDIV);
|
---|
[1291] | 760 | }
|
---|
[1288] | 761 |
|
---|
| 762 | return hierarchyManager;
|
---|
| 763 | }
|
---|
| 764 |
|
---|
| 765 |
|
---|
[575] | 766 | ViewCellsManager *Preprocessor::CreateViewCellsManager(const char *name)
|
---|
| 767 | {
|
---|
[1264] | 768 | ViewCellsTree *vcTree = new ViewCellsTree;
|
---|
| 769 |
|
---|
[575] | 770 | if (strcmp(name, "kdTree") == 0)
|
---|
| 771 | {
|
---|
[1264] | 772 | mViewCellsManager = new KdViewCellsManager(vcTree, mKdTree);
|
---|
[575] | 773 | }
|
---|
| 774 | else if (strcmp(name, "bspTree") == 0)
|
---|
| 775 | {
|
---|
| 776 | Debug << "view cell type: Bsp" << endl;
|
---|
| 777 |
|
---|
[577] | 778 | mBspTree = new BspTree();
|
---|
[1264] | 779 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 780 | }
|
---|
| 781 | else if (strcmp(name, "vspBspTree") == 0)
|
---|
| 782 | {
|
---|
| 783 | Debug << "view cell type: VspBsp" << endl;
|
---|
| 784 |
|
---|
[1004] | 785 | mVspBspTree = new VspBspTree();
|
---|
[1264] | 786 | mViewCellsManager = new VspBspViewCellsManager(vcTree, mVspBspTree);
|
---|
[575] | 787 | }
|
---|
[1006] | 788 | else if (strcmp(name, "vspOspTree") == 0)
|
---|
[575] | 789 | {
|
---|
[1421] | 790 | Debug << "view cell type: VspOsp" << endl;
|
---|
[1288] | 791 | char buf[100];
|
---|
| 792 | Environment::GetSingleton()->GetStringValue("Hierarchy.type", buf);
|
---|
[1022] | 793 |
|
---|
[1696] | 794 | mHierarchyManager = CreateHierarchyManager(buf);
|
---|
[1279] | 795 | mViewCellsManager = new VspOspViewCellsManager(vcTree, mHierarchyManager);
|
---|
[575] | 796 | }
|
---|
[1421] | 797 | else if (strcmp(name, "sceneDependent") == 0) //TODO
|
---|
[575] | 798 | {
|
---|
[1143] | 799 | Debug << "view cell type: Bsp" << endl;
|
---|
[1421] | 800 |
|
---|
[575] | 801 | mBspTree = new BspTree();
|
---|
[1264] | 802 | mViewCellsManager = new BspViewCellsManager(vcTree, mBspTree);
|
---|
[575] | 803 | }
|
---|
| 804 | else
|
---|
| 805 | {
|
---|
[664] | 806 | cerr << "Wrong view cells type " << name << "!!!" << endl;
|
---|
[575] | 807 | exit(1);
|
---|
| 808 | }
|
---|
| 809 |
|
---|
| 810 | return mViewCellsManager;
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 |
|
---|
[491] | 814 | // use ascii format to store rays
|
---|
| 815 | #define USE_ASCII 0
|
---|
| 816 |
|
---|
| 817 |
|
---|
[1145] | 818 | static inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
[490] | 819 | {
|
---|
| 820 | return obj1->mId < obj2->mId;
|
---|
| 821 | }
|
---|
| 822 |
|
---|
| 823 |
|
---|
[1414] | 824 | bool Preprocessor::LoadKdTree(const string filename)
|
---|
[1197] | 825 | {
|
---|
[1414] | 826 | mKdTree = new KdTree();
|
---|
[1633] | 827 |
|
---|
[1414] | 828 | return mKdTree->LoadBinTree(filename.c_str(), mObjects);
|
---|
[1197] | 829 | }
|
---|
| 830 |
|
---|
[1414] | 831 |
|
---|
| 832 | bool Preprocessor::ExportKdTree(const string filename)
|
---|
[1197] | 833 | {
|
---|
[1414] | 834 | return mKdTree->ExportBinTree(filename.c_str());
|
---|
[1197] | 835 | }
|
---|
| 836 |
|
---|
| 837 |
|
---|
[490] | 838 | bool Preprocessor::LoadSamples(VssRayContainer &samples,
|
---|
| 839 | ObjectContainer &objects) const
|
---|
| 840 | {
|
---|
| 841 | std::stable_sort(objects.begin(), objects.end(), ilt);
|
---|
| 842 | char fileName[100];
|
---|
[1004] | 843 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[490] | 844 |
|
---|
[491] | 845 | Vector3 origin, termination;
|
---|
| 846 | // HACK: needed only for lower_bound algorithm to find the
|
---|
| 847 | // intersected objects
|
---|
| 848 | MeshInstance sObj(NULL);
|
---|
| 849 | MeshInstance tObj(NULL);
|
---|
[490] | 850 |
|
---|
[491] | 851 | #if USE_ASCII
|
---|
[656] | 852 | ifstream samplesIn(fileName);
|
---|
[490] | 853 | if (!samplesIn.is_open())
|
---|
| 854 | return false;
|
---|
| 855 |
|
---|
| 856 | string buf;
|
---|
| 857 | while (!(getline(samplesIn, buf)).eof())
|
---|
| 858 | {
|
---|
[491] | 859 | sscanf(buf.c_str(), "%f %f %f %f %f %f %d %d",
|
---|
[490] | 860 | &origin.x, &origin.y, &origin.z,
|
---|
[491] | 861 | &termination.x, &termination.y, &termination.z,
|
---|
| 862 | &(sObj.mId), &(tObj.mId));
|
---|
[490] | 863 |
|
---|
[491] | 864 | Intersectable *sourceObj = NULL;
|
---|
| 865 | Intersectable *termObj = NULL;
|
---|
| 866 |
|
---|
| 867 | if (sObj.mId >= 0)
|
---|
[490] | 868 | {
|
---|
| 869 | ObjectContainer::iterator oit =
|
---|
[491] | 870 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 871 | sourceObj = *oit;
|
---|
| 872 | }
|
---|
| 873 |
|
---|
| 874 | if (tObj.mId >= 0)
|
---|
| 875 | {
|
---|
| 876 | ObjectContainer::iterator oit =
|
---|
| 877 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 878 | termObj = *oit;
|
---|
| 879 | }
|
---|
[490] | 880 |
|
---|
[491] | 881 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
| 882 | }
|
---|
| 883 | #else
|
---|
| 884 | ifstream samplesIn(fileName, ios::binary);
|
---|
| 885 | if (!samplesIn.is_open())
|
---|
| 886 | return false;
|
---|
| 887 |
|
---|
| 888 | while (1)
|
---|
| 889 | {
|
---|
| 890 | samplesIn.read(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 891 | samplesIn.read(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 892 | samplesIn.read(reinterpret_cast<char *>(&(sObj.mId)), sizeof(int));
|
---|
| 893 | samplesIn.read(reinterpret_cast<char *>(&(tObj.mId)), sizeof(int));
|
---|
| 894 |
|
---|
| 895 | if (samplesIn.eof())
|
---|
| 896 | break;
|
---|
| 897 |
|
---|
| 898 | Intersectable *sourceObj = NULL;
|
---|
| 899 | Intersectable *termObj = NULL;
|
---|
| 900 |
|
---|
| 901 | if (sObj.mId >= 0)
|
---|
| 902 | {
|
---|
| 903 | ObjectContainer::iterator oit =
|
---|
| 904 | lower_bound(objects.begin(), objects.end(), &sObj, ilt);
|
---|
| 905 | sourceObj = *oit;
|
---|
[490] | 906 | }
|
---|
[491] | 907 |
|
---|
| 908 | if (tObj.mId >= 0)
|
---|
[490] | 909 | {
|
---|
[491] | 910 | ObjectContainer::iterator oit =
|
---|
| 911 | lower_bound(objects.begin(), objects.end(), &tObj, ilt);
|
---|
| 912 | termObj = *oit;
|
---|
[490] | 913 | }
|
---|
[491] | 914 |
|
---|
| 915 | samples.push_back(new VssRay(origin, termination, sourceObj, termObj));
|
---|
[490] | 916 | }
|
---|
[491] | 917 |
|
---|
| 918 | #endif
|
---|
[490] | 919 | samplesIn.close();
|
---|
| 920 |
|
---|
| 921 | return true;
|
---|
| 922 | }
|
---|
| 923 |
|
---|
[508] | 924 |
|
---|
| 925 | bool Preprocessor::ExportSamples(const VssRayContainer &samples) const
|
---|
[490] | 926 | {
|
---|
[491] | 927 | char fileName[100];
|
---|
[1004] | 928 | Environment::GetSingleton()->GetStringValue("Preprocessor.samplesFilename", fileName);
|
---|
[491] | 929 |
|
---|
[490] | 930 |
|
---|
| 931 | VssRayContainer::const_iterator it, it_end = samples.end();
|
---|
| 932 |
|
---|
[491] | 933 | #if USE_ASCII
|
---|
| 934 | ofstream samplesOut(fileName);
|
---|
[490] | 935 | if (!samplesOut.is_open())
|
---|
| 936 | return false;
|
---|
| 937 |
|
---|
| 938 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 939 | {
|
---|
| 940 | VssRay *ray = *it;
|
---|
[491] | 941 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 942 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 943 |
|
---|
[490] | 944 | samplesOut << ray->GetOrigin().x << " " << ray->GetOrigin().y << " " << ray->GetOrigin().z << " "
|
---|
| 945 | << ray->GetTermination().x << " " << ray->GetTermination().y << " " << ray->GetTermination().z << " "
|
---|
[491] | 946 | << sourceid << " " << termid << "\n";
|
---|
[490] | 947 | }
|
---|
[491] | 948 | #else
|
---|
| 949 | ofstream samplesOut(fileName, ios::binary);
|
---|
| 950 | if (!samplesOut.is_open())
|
---|
| 951 | return false;
|
---|
| 952 |
|
---|
| 953 | for (it = samples.begin(); it != it_end; ++ it)
|
---|
| 954 | {
|
---|
| 955 | VssRay *ray = *it;
|
---|
| 956 | Vector3 origin(ray->GetOrigin());
|
---|
| 957 | Vector3 termination(ray->GetTermination());
|
---|
| 958 |
|
---|
| 959 | int sourceid = ray->mOriginObject ? ray->mOriginObject->mId : -1;
|
---|
| 960 | int termid = ray->mTerminationObject ? ray->mTerminationObject->mId : -1;
|
---|
| 961 |
|
---|
| 962 | samplesOut.write(reinterpret_cast<char *>(&origin), sizeof(Vector3));
|
---|
| 963 | samplesOut.write(reinterpret_cast<char *>(&termination), sizeof(Vector3));
|
---|
| 964 | samplesOut.write(reinterpret_cast<char *>(&sourceid), sizeof(int));
|
---|
| 965 | samplesOut.write(reinterpret_cast<char *>(&termid), sizeof(int));
|
---|
| 966 | }
|
---|
| 967 | #endif
|
---|
[490] | 968 | samplesOut.close();
|
---|
[1194] | 969 |
|
---|
[490] | 970 | return true;
|
---|
| 971 | }
|
---|
[563] | 972 |
|
---|
[1020] | 973 | bool Preprocessor::GenerateRays(const int number,
|
---|
| 974 | const int sampleType,
|
---|
| 975 | SimpleRayContainer &rays)
|
---|
| 976 | {
|
---|
| 977 | const int startSize = (int)rays.size();
|
---|
| 978 | SamplingStrategy *strategy = GenerateSamplingStrategy(sampleType);
|
---|
[860] | 979 |
|
---|
[1020] | 980 | if (!strategy)
|
---|
[1381] | 981 | {
|
---|
[1020] | 982 | return false;
|
---|
[1381] | 983 | }
|
---|
[1020] | 984 |
|
---|
| 985 | for (int i=0; (int)rays.size() - startSize < number; ++ i)
|
---|
| 986 | {
|
---|
| 987 | SimpleRay newRay;
|
---|
| 988 |
|
---|
[1381] | 989 | if (strategy->GenerateSample(newRay))
|
---|
| 990 | {
|
---|
| 991 | #if 1
|
---|
[1020] | 992 | rays.AddRay(newRay);
|
---|
[1381] | 993 | #else
|
---|
| 994 | GenerateRayBundle(rays, newRay, 16, 0);
|
---|
| 995 | #endif
|
---|
| 996 | }
|
---|
[1020] | 997 | }
|
---|
| 998 |
|
---|
| 999 | delete strategy;
|
---|
| 1000 | return true;
|
---|
[878] | 1001 | }
|
---|
[1020] | 1002 |
|
---|
| 1003 |
|
---|
| 1004 | SamplingStrategy *Preprocessor::GenerateSamplingStrategy(const int strategyId) const
|
---|
| 1005 | {
|
---|
| 1006 | switch (strategyId)
|
---|
| 1007 | {
|
---|
[1520] | 1008 | case SamplingStrategy::OBJECT_BASED_DISTRIBUTION:
|
---|
[1020] | 1009 | return new ObjectBasedDistribution(*this);
|
---|
[1520] | 1010 | case SamplingStrategy::OBJECT_DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 1011 | return new ObjectDirectionBasedDistribution(*this);
|
---|
[1520] | 1012 | case SamplingStrategy::DIRECTION_BASED_DISTRIBUTION:
|
---|
[1020] | 1013 | return new DirectionBasedDistribution(*this);
|
---|
[1520] | 1014 | case SamplingStrategy::DIRECTION_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 1015 | return new DirectionBoxBasedDistribution(*this);
|
---|
[1520] | 1016 | case SamplingStrategy::SPATIAL_BOX_BASED_DISTRIBUTION:
|
---|
[1020] | 1017 | return new SpatialBoxBasedDistribution(*this);
|
---|
[1695] | 1018 | case SamplingStrategy::REVERSE_OBJECT_BASED_DISTRIBUTION:
|
---|
| 1019 | return new ReverseObjectBasedDistribution(*this);
|
---|
[1021] | 1020 | //case OBJECTS_INTERIOR_DISTRIBUTION:
|
---|
| 1021 | // return new ObjectsInteriorDistribution(*this);
|
---|
[1020] | 1022 | default: // no valid strategy
|
---|
[1279] | 1023 | Debug << "warning: no valid sampling strategy" << endl;
|
---|
[1020] | 1024 | return NULL;
|
---|
| 1025 | }
|
---|
[1221] | 1026 |
|
---|
[1570] | 1027 | return NULL; // should never come here
|
---|
[1020] | 1028 | }
|
---|
| 1029 |
|
---|
| 1030 |
|
---|
[1627] | 1031 | bool Preprocessor::InitRayCast(const string externKdTree, const string internKdTree)
|
---|
[1221] | 1032 | {
|
---|
[1633] | 1033 | // always try to load the kd tree
|
---|
[1664] | 1034 | cout << "loading kd tree file " << internKdTree << " ... " << endl;
|
---|
[1634] | 1035 |
|
---|
| 1036 | if (!LoadKdTree(internKdTree))
|
---|
| 1037 | {
|
---|
| 1038 | cout << "error loading kd tree with filename " << internKdTree << ", rebuilding it instead ... " << endl;
|
---|
[1633] | 1039 | // build new kd tree from scene geometry
|
---|
[1415] | 1040 | BuildKdTree();
|
---|
| 1041 |
|
---|
[1627] | 1042 | // export kd tree?
|
---|
[1633] | 1043 | const long startTime = GetTime();
|
---|
[1627] | 1044 | cout << "exporting kd tree ... ";
|
---|
| 1045 |
|
---|
| 1046 | if (!ExportKdTree(internKdTree))
|
---|
| 1047 | {
|
---|
| 1048 | cout << " error exporting kd tree with filename " << internKdTree << endl;
|
---|
| 1049 | }
|
---|
| 1050 | else
|
---|
| 1051 | {
|
---|
| 1052 | cout << "finished in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
| 1053 | }
|
---|
[1415] | 1054 | }
|
---|
[1633] | 1055 |
|
---|
| 1056 | KdTreeStatistics(cout);
|
---|
| 1057 | cout << mKdTree->GetBox() << endl;
|
---|
[1415] | 1058 |
|
---|
[1633] | 1059 | if (0)
|
---|
| 1060 | {
|
---|
| 1061 | Exporter *exporter = Exporter::GetExporter("dummykd.x3d");
|
---|
| 1062 |
|
---|
| 1063 | if (exporter)
|
---|
| 1064 | {
|
---|
| 1065 | exporter->ExportKdTree(*mKdTree, true);
|
---|
| 1066 | delete exporter;
|
---|
| 1067 | }
|
---|
| 1068 | }
|
---|
| 1069 |
|
---|
[1520] | 1070 | int rayCastMethod;
|
---|
| 1071 | Environment::GetSingleton()->GetIntValue("Preprocessor.rayCastMethod", rayCastMethod);
|
---|
| 1072 |
|
---|
| 1073 | if (rayCastMethod == 0)
|
---|
[1221] | 1074 | {
|
---|
[1520] | 1075 | mRayCaster = new InternalRayCaster(*this, mKdTree);
|
---|
| 1076 | cout << "ray cast method: internal" << endl;
|
---|
[1221] | 1077 | }
|
---|
[1251] | 1078 | else
|
---|
[1520] | 1079 | {
|
---|
[1524] | 1080 | #ifdef GTP_INTERNAL
|
---|
[1520] | 1081 | mRayCaster = new IntelRayCaster(*this, externKdTree);
|
---|
| 1082 | cout << "ray cast method: intel" << endl;
|
---|
[1524] | 1083 | #endif
|
---|
[1251] | 1084 | }
|
---|
| 1085 |
|
---|
[1520] | 1086 | return true;
|
---|
[1281] | 1087 | }
|
---|
| 1088 |
|
---|
[1292] | 1089 |
|
---|
[1281] | 1090 | void
|
---|
| 1091 | Preprocessor::CastRays(
|
---|
| 1092 | SimpleRayContainer &rays,
|
---|
[1520] | 1093 | VssRayContainer &vssRays,
|
---|
[1528] | 1094 | const bool castDoubleRays,
|
---|
| 1095 | const bool pruneInvalidRays
|
---|
[1281] | 1096 | )
|
---|
| 1097 | {
|
---|
[1524] | 1098 | const long t1 = GetTime();
|
---|
[1344] | 1099 |
|
---|
[1524] | 1100 | for (int i = 0; i < (int)rays.size();)
|
---|
[1292] | 1101 | {
|
---|
[1524] | 1102 | if (i + 16 < (int)rays.size())
|
---|
[1520] | 1103 | {
|
---|
[1524] | 1104 | mRayCaster->CastRays16(
|
---|
[1584] | 1105 | i,
|
---|
| 1106 | rays,
|
---|
| 1107 | vssRays,
|
---|
| 1108 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 1109 | castDoubleRays,
|
---|
| 1110 | pruneInvalidRays);
|
---|
[1524] | 1111 | i += 16;
|
---|
[1292] | 1112 | }
|
---|
[1524] | 1113 | else
|
---|
[1584] | 1114 | {
|
---|
[1524] | 1115 | mRayCaster->CastRay(
|
---|
[1584] | 1116 | rays[i],
|
---|
| 1117 | vssRays,
|
---|
| 1118 | mViewCellsManager->GetViewSpaceBox(),
|
---|
| 1119 | castDoubleRays,
|
---|
| 1120 | pruneInvalidRays);
|
---|
[1524] | 1121 | i ++;
|
---|
[1584] | 1122 | }
|
---|
| 1123 | if (i % 10000 == 0)
|
---|
[1627] | 1124 | cout<<"\r"<<i<<"/"<<(int)rays.size()<<"\r";
|
---|
[1524] | 1125 | }
|
---|
[1608] | 1126 | cout<<endl;
|
---|
[1584] | 1127 |
|
---|
| 1128 | long t2 = GetTime();
|
---|
[1286] | 1129 |
|
---|
[1584] | 1130 | #if SHOW_RAYCAST_TIMING
|
---|
[1524] | 1131 | if (castDoubleRays)
|
---|
| 1132 | cout << 2 * rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
| 1133 | else
|
---|
| 1134 | cout << rays.size() / (1e3f * TimeDiff(t1, t2)) << "M rays/s" << endl;
|
---|
| 1135 | #endif
|
---|
[1251] | 1136 | }
|
---|
| 1137 |
|
---|
| 1138 |
|
---|
[1381] | 1139 | bool Preprocessor::GenerateRayBundle(SimpleRayContainer &rayBundle,
|
---|
| 1140 | const SimpleRay &mainRay,
|
---|
| 1141 | const int number,
|
---|
| 1142 | const int pertubType) const
|
---|
| 1143 | {
|
---|
| 1144 | rayBundle.push_back(mainRay);
|
---|
| 1145 |
|
---|
[1564] | 1146 | const float pertubOrigin = 0.0f;
|
---|
| 1147 | const float pertubDir = 0.2f;
|
---|
[1381] | 1148 |
|
---|
| 1149 | for (int i = 0; i < number - 1; ++ i)
|
---|
| 1150 | {
|
---|
| 1151 | Vector3 pertub;
|
---|
| 1152 |
|
---|
| 1153 | pertub.x = RandomValue(0.0f, pertubDir);
|
---|
| 1154 | pertub.y = RandomValue(0.0f, pertubDir);
|
---|
| 1155 | pertub.z = RandomValue(0.0f, pertubDir);
|
---|
[1713] | 1156 |
|
---|
[1381] | 1157 | const Vector3 newDir = mainRay.mDirection + pertub;
|
---|
| 1158 | //const Vector3 newDir = mainRay.mDirection;
|
---|
| 1159 |
|
---|
| 1160 | pertub.x = RandomValue(0.0f, pertubOrigin);
|
---|
| 1161 | pertub.y = RandomValue(0.0f, pertubOrigin);
|
---|
| 1162 | pertub.z = RandomValue(0.0f, pertubOrigin);
|
---|
[1713] | 1163 |
|
---|
[1381] | 1164 | const Vector3 newOrigin = mainRay.mOrigin + pertub;
|
---|
| 1165 | //const Vector3 newOrigin = mainRay.mOrigin;
|
---|
| 1166 |
|
---|
| 1167 | rayBundle.push_back(SimpleRay(newOrigin, newDir, 0));
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 | return true;
|
---|
| 1171 | }
|
---|
| 1172 |
|
---|
| 1173 |
|
---|
[1251] | 1174 | void Preprocessor::SetupRay(Ray &ray,
|
---|
| 1175 | const Vector3 &point,
|
---|
[1713] | 1176 | const Vector3 &direction) const
|
---|
[1251] | 1177 | {
|
---|
| 1178 | ray.Clear();
|
---|
| 1179 | // do not store anything else then intersections at the ray
|
---|
[1713] | 1180 | ray.Init(point, direction, Ray::LOCAL_RAY);
|
---|
[1251] | 1181 | }
|
---|
| 1182 |
|
---|
[1520] | 1183 |
|
---|
[1251] | 1184 | }
|
---|