| 1 | // Copyright (c) 2011-2019 OPEN CASCADE SAS |
| 2 | // |
| 3 | // This file is part of Open CASCADE Technology software library. |
| 4 | // |
| 5 | // This library is free software; you can redistribute it and/or modify it under |
| 6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 7 | // by the Free Software Foundation, with special exception defined in the file |
| 8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 9 | // distribution for complete text of the license and disclaimer of any warranty. |
| 10 | // |
| 11 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 12 | // commercial license or contractual agreement. |
| 13 | |
| 14 | #include <Graphic3d_Layer.hxx> |
| 15 | |
| 16 | #include <Graphic3d_CStructure.hxx> |
| 17 | #include <Graphic3d_CullingTool.hxx> |
| 18 | |
| 19 | IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_Layer, Standard_Transient) |
| 20 | |
| 21 | // ======================================================================= |
| 22 | // function : Graphic3d_Layer |
| 23 | // purpose : |
| 24 | // ======================================================================= |
| 25 | Graphic3d_Layer::Graphic3d_Layer (Graphic3d_ZLayerId theId, |
| 26 | Standard_Integer theNbPriorities, |
| 27 | const Handle(Select3D_BVHBuilder3d)& theBuilder) |
| 28 | : myArray (0, theNbPriorities - 1), |
| 29 | myNbStructures (0), |
| 30 | myNbStructuresNotCulled (0), |
| 31 | myLayerId (theId), |
| 32 | myBVHPrimitivesTrsfPers (theBuilder), |
| 33 | myBVHIsLeftChildQueuedFirst (Standard_True), |
| 34 | myIsBVHPrimitivesNeedsReset (Standard_False) |
| 35 | { |
| 36 | myIsBoundingBoxNeedsReset[0] = myIsBoundingBoxNeedsReset[1] = true; |
| 37 | } |
| 38 | |
| 39 | // ======================================================================= |
| 40 | // function : ~Graphic3d_Layer |
| 41 | // purpose : |
| 42 | // ======================================================================= |
| 43 | Graphic3d_Layer::~Graphic3d_Layer() |
| 44 | { |
| 45 | // |
| 46 | } |
| 47 | |
| 48 | // ======================================================================= |
| 49 | // function : Add |
| 50 | // purpose : |
| 51 | // ======================================================================= |
| 52 | void Graphic3d_Layer::Add (const Graphic3d_CStructure* theStruct, |
| 53 | Standard_Integer thePriority, |
| 54 | Standard_Boolean isForChangePriority) |
| 55 | { |
| 56 | const Standard_Integer anIndex = Min (Max (thePriority, 0), myArray.Length() - 1); |
| 57 | if (theStruct == NULL) |
| 58 | { |
| 59 | return; |
| 60 | } |
| 61 | |
| 62 | myArray (anIndex).Add (theStruct); |
| 63 | if (theStruct->IsAlwaysRendered()) |
| 64 | { |
| 65 | theStruct->MarkAsNotCulled(); |
| 66 | if (!isForChangePriority) |
| 67 | { |
| 68 | myAlwaysRenderedMap.Add (theStruct); |
| 69 | } |
| 70 | } |
| 71 | else if (!isForChangePriority) |
| 72 | { |
| 73 | if (theStruct->TransformPersistence().IsNull()) |
| 74 | { |
| 75 | myBVHPrimitives.Add (theStruct); |
| 76 | } |
| 77 | else |
| 78 | { |
| 79 | myBVHPrimitivesTrsfPers.Add (theStruct); |
| 80 | } |
| 81 | } |
| 82 | ++myNbStructures; |
| 83 | } |
| 84 | |
| 85 | // ======================================================================= |
| 86 | // function : Remove |
| 87 | // purpose : |
| 88 | // ======================================================================= |
| 89 | bool Graphic3d_Layer::Remove (const Graphic3d_CStructure* theStruct, |
| 90 | Standard_Integer& thePriority, |
| 91 | Standard_Boolean isForChangePriority) |
| 92 | { |
| 93 | if (theStruct == NULL) |
| 94 | { |
| 95 | thePriority = -1; |
| 96 | return false; |
| 97 | } |
| 98 | |
| 99 | const Standard_Integer aNbPriorities = myArray.Length(); |
| 100 | for (Standard_Integer aPriorityIter = 0; aPriorityIter < aNbPriorities; ++aPriorityIter) |
| 101 | { |
| 102 | Graphic3d_IndexedMapOfStructure& aStructures = myArray (aPriorityIter); |
| 103 | const Standard_Integer anIndex = aStructures.FindIndex (theStruct); |
| 104 | if (anIndex == 0) |
| 105 | { |
| 106 | continue; |
| 107 | } |
| 108 | |
| 109 | aStructures.Swap (anIndex, aStructures.Size()); |
| 110 | aStructures.RemoveLast(); |
| 111 | |
| 112 | if (!isForChangePriority) |
| 113 | { |
| 114 | Standard_Boolean isAlwaysRend = theStruct->IsAlwaysRendered(); |
| 115 | if (!isAlwaysRend) |
| 116 | { |
| 117 | if (!myBVHPrimitives.Remove (theStruct)) |
| 118 | { |
| 119 | if (!myBVHPrimitivesTrsfPers.Remove (theStruct)) |
| 120 | { |
| 121 | isAlwaysRend = Standard_True; |
| 122 | } |
| 123 | } |
| 124 | } |
| 125 | if (isAlwaysRend) |
| 126 | { |
| 127 | const Standard_Integer anIndex2 = myAlwaysRenderedMap.FindIndex (theStruct); |
| 128 | if (anIndex2 != 0) |
| 129 | { |
| 130 | myAlwaysRenderedMap.Swap (myAlwaysRenderedMap.Size(), anIndex2); |
| 131 | myAlwaysRenderedMap.RemoveLast(); |
| 132 | } |
| 133 | } |
| 134 | } |
| 135 | --myNbStructures; |
| 136 | thePriority = aPriorityIter; |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | thePriority = -1; |
| 141 | return false; |
| 142 | } |
| 143 | |
| 144 | // ======================================================================= |
| 145 | // function : InvalidateBVHData |
| 146 | // purpose : |
| 147 | // ======================================================================= |
| 148 | void Graphic3d_Layer::InvalidateBVHData() |
| 149 | { |
| 150 | myIsBVHPrimitivesNeedsReset = Standard_True; |
| 151 | } |
| 152 | |
| 153 | //! Calculate a finite bounding box of infinite object as its middle point. |
| 154 | inline Graphic3d_BndBox3d centerOfinfiniteBndBox (const Graphic3d_BndBox3d& theBndBox) |
| 155 | { |
| 156 | // bounding borders of infinite line has been calculated as own point in center of this line |
| 157 | const Graphic3d_Vec3d aDiagVec = theBndBox.CornerMax() - theBndBox.CornerMin(); |
| 158 | return aDiagVec.SquareModulus() >= 500000.0 * 500000.0 |
| 159 | ? Graphic3d_BndBox3d ((theBndBox.CornerMin() + theBndBox.CornerMax()) * 0.5) |
| 160 | : Graphic3d_BndBox3d(); |
| 161 | } |
| 162 | |
| 163 | //! Return true if at least one vertex coordinate out of float range. |
| 164 | inline bool isInfiniteBndBox (const Graphic3d_BndBox3d& theBndBox) |
| 165 | { |
| 166 | return Abs (theBndBox.CornerMax().x()) >= ShortRealLast() |
| 167 | || Abs (theBndBox.CornerMax().y()) >= ShortRealLast() |
| 168 | || Abs (theBndBox.CornerMax().z()) >= ShortRealLast() |
| 169 | || Abs (theBndBox.CornerMin().x()) >= ShortRealLast() |
| 170 | || Abs (theBndBox.CornerMin().y()) >= ShortRealLast() |
| 171 | || Abs (theBndBox.CornerMin().z()) >= ShortRealLast(); |
| 172 | } |
| 173 | |
| 174 | // ======================================================================= |
| 175 | // function : BoundingBox |
| 176 | // purpose : |
| 177 | // ======================================================================= |
| 178 | Bnd_Box Graphic3d_Layer::BoundingBox (Standard_Integer theViewId, |
| 179 | const Handle(Graphic3d_Camera)& theCamera, |
| 180 | Standard_Integer theWindowWidth, |
| 181 | Standard_Integer theWindowHeight, |
| 182 | Standard_Boolean theToIncludeAuxiliary) const |
| 183 | { |
| 184 | updateBVH(); |
| 185 | |
| 186 | const Standard_Integer aBoxId = !theToIncludeAuxiliary ? 0 : 1; |
| 187 | const Graphic3d_Mat4d& aProjectionMat = theCamera->ProjectionMatrix(); |
| 188 | const Graphic3d_Mat4d& aWorldViewMat = theCamera->OrientationMatrix(); |
| 189 | if (myIsBoundingBoxNeedsReset[aBoxId]) |
| 190 | { |
| 191 | // Recompute layer bounding box |
| 192 | myBoundingBox[aBoxId].SetVoid(); |
| 193 | |
| 194 | for (Graphic3d_ArrayOfIndexedMapOfStructure::Iterator aMapIter (myArray); aMapIter.More(); aMapIter.Next()) |
| 195 | { |
| 196 | const Graphic3d_IndexedMapOfStructure& aStructures = aMapIter.Value(); |
| 197 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 198 | { |
| 199 | const Graphic3d_CStructure* aStructure = aStructIter.Value(); |
| 200 | if (!aStructure->IsVisible (theViewId)) |
| 201 | { |
| 202 | continue; |
| 203 | } |
| 204 | |
| 205 | // "FitAll" operation ignores object with transform persistence parameter |
| 206 | // but adds transform persistence point in a bounding box of layer (only zoom pers. objects). |
| 207 | if (!aStructure->TransformPersistence().IsNull()) |
| 208 | { |
| 209 | if (!theToIncludeAuxiliary |
| 210 | && aStructure->TransformPersistence()->IsZoomOrRotate()) |
| 211 | { |
| 212 | const gp_Pnt anAnchor = aStructure->TransformPersistence()->AnchorPoint(); |
| 213 | myBoundingBox[aBoxId].Add (anAnchor); |
| 214 | continue; |
| 215 | } |
| 216 | // Panning and 2d persistence apply changes to projection or/and its translation components. |
| 217 | // It makes them incompatible with z-fitting algorithm. Ignored by now. |
| 218 | else if (!theToIncludeAuxiliary |
| 219 | || aStructure->TransformPersistence()->IsTrihedronOr2d()) |
| 220 | { |
| 221 | continue; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | Graphic3d_BndBox3d aBox = aStructure->BoundingBox(); |
| 226 | if (!aBox.IsValid()) |
| 227 | { |
| 228 | continue; |
| 229 | } |
| 230 | |
| 231 | if (aStructure->IsInfinite |
| 232 | && !theToIncludeAuxiliary) |
| 233 | { |
| 234 | // include center of infinite object |
| 235 | aBox = centerOfinfiniteBndBox (aBox); |
| 236 | } |
| 237 | |
| 238 | if (!aStructure->TransformPersistence().IsNull()) |
| 239 | { |
| 240 | aStructure->TransformPersistence()->Apply (theCamera, aProjectionMat, aWorldViewMat, theWindowWidth, theWindowHeight, aBox); |
| 241 | } |
| 242 | |
| 243 | // skip too big boxes to prevent float overflow at camera parameters calculation |
| 244 | if (aBox.IsValid() |
| 245 | && !isInfiniteBndBox (aBox)) |
| 246 | { |
| 247 | myBoundingBox[aBoxId].Add (gp_Pnt (aBox.CornerMin().x(), aBox.CornerMin().y(), aBox.CornerMin().z())); |
| 248 | myBoundingBox[aBoxId].Add (gp_Pnt (aBox.CornerMax().x(), aBox.CornerMax().y(), aBox.CornerMax().z())); |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | myIsBoundingBoxNeedsReset[aBoxId] = false; |
| 254 | } |
| 255 | |
| 256 | Bnd_Box aResBox = myBoundingBox[aBoxId]; |
| 257 | if (!theToIncludeAuxiliary |
| 258 | || myAlwaysRenderedMap.IsEmpty()) |
| 259 | { |
| 260 | return aResBox; |
| 261 | } |
| 262 | |
| 263 | // add transformation-persistent objects which depend on camera position (and thus can not be cached) for operations like Z-fit |
| 264 | for (NCollection_IndexedMap<const Graphic3d_CStructure*>::Iterator aStructIter (myAlwaysRenderedMap); aStructIter.More(); aStructIter.Next()) |
| 265 | { |
| 266 | const Graphic3d_CStructure* aStructure = aStructIter.Value(); |
| 267 | if (!aStructure->IsVisible (theViewId)) |
| 268 | { |
| 269 | continue; |
| 270 | } |
| 271 | else if (aStructure->TransformPersistence().IsNull() |
| 272 | || !aStructure->TransformPersistence()->IsTrihedronOr2d()) |
| 273 | { |
| 274 | continue; |
| 275 | } |
| 276 | |
| 277 | Graphic3d_BndBox3d aBox = aStructure->BoundingBox(); |
| 278 | if (!aBox.IsValid()) |
| 279 | { |
| 280 | continue; |
| 281 | } |
| 282 | |
| 283 | aStructure->TransformPersistence()->Apply (theCamera, aProjectionMat, aWorldViewMat, theWindowWidth, theWindowHeight, aBox); |
| 284 | if (aBox.IsValid() |
| 285 | && !isInfiniteBndBox (aBox)) |
| 286 | { |
| 287 | aResBox.Add (gp_Pnt (aBox.CornerMin().x(), aBox.CornerMin().y(), aBox.CornerMin().z())); |
| 288 | aResBox.Add (gp_Pnt (aBox.CornerMax().x(), aBox.CornerMax().y(), aBox.CornerMax().z())); |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | return aResBox; |
| 293 | } |
| 294 | |
| 295 | // ======================================================================= |
| 296 | // function : considerZoomPersistenceObjects |
| 297 | // purpose : |
| 298 | // ======================================================================= |
| 299 | Standard_Real Graphic3d_Layer::considerZoomPersistenceObjects (Standard_Integer theViewId, |
| 300 | const Handle(Graphic3d_Camera)& theCamera, |
| 301 | Standard_Integer theWindowWidth, |
| 302 | Standard_Integer theWindowHeight) const |
| 303 | { |
| 304 | if (NbOfTransformPersistenceObjects() == 0) |
| 305 | { |
| 306 | return 1.0; |
| 307 | } |
| 308 | |
| 309 | const Graphic3d_Mat4d& aProjectionMat = theCamera->ProjectionMatrix(); |
| 310 | const Graphic3d_Mat4d& aWorldViewMat = theCamera->OrientationMatrix(); |
| 311 | Standard_Real aMaxCoef = -std::numeric_limits<double>::max(); |
| 312 | |
| 313 | for (Graphic3d_ArrayOfIndexedMapOfStructure::Iterator aMapIter (myArray); aMapIter.More(); aMapIter.Next()) |
| 314 | { |
| 315 | const Graphic3d_IndexedMapOfStructure& aStructures = aMapIter.Value(); |
| 316 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 317 | { |
| 318 | const Graphic3d_CStructure* aStructure = aStructIter.Value(); |
| 319 | if (!aStructure->IsVisible (theViewId) |
| 320 | || aStructure->TransformPersistence().IsNull() |
| 321 | || !aStructure->TransformPersistence()->IsZoomOrRotate()) |
| 322 | { |
| 323 | continue; |
| 324 | } |
| 325 | |
| 326 | Graphic3d_BndBox3d aBox = aStructure->BoundingBox(); |
| 327 | if (!aBox.IsValid()) |
| 328 | { |
| 329 | continue; |
| 330 | } |
| 331 | |
| 332 | aStructure->TransformPersistence()->Apply (theCamera, aProjectionMat, aWorldViewMat, theWindowWidth, theWindowHeight, aBox); |
| 333 | |
| 334 | const BVH_Vec3d& aCornerMin = aBox.CornerMin(); |
| 335 | const BVH_Vec3d& aCornerMax = aBox.CornerMax(); |
| 336 | const Standard_Integer aNbOfPoints = 8; |
| 337 | const gp_Pnt aPoints[aNbOfPoints] = { gp_Pnt (aCornerMin.x(), aCornerMin.y(), aCornerMin.z()), |
| 338 | gp_Pnt (aCornerMin.x(), aCornerMin.y(), aCornerMax.z()), |
| 339 | gp_Pnt (aCornerMin.x(), aCornerMax.y(), aCornerMin.z()), |
| 340 | gp_Pnt (aCornerMin.x(), aCornerMax.y(), aCornerMax.z()), |
| 341 | gp_Pnt (aCornerMax.x(), aCornerMin.y(), aCornerMin.z()), |
| 342 | gp_Pnt (aCornerMax.x(), aCornerMin.y(), aCornerMax.z()), |
| 343 | gp_Pnt (aCornerMax.x(), aCornerMax.y(), aCornerMin.z()), |
| 344 | gp_Pnt (aCornerMax.x(), aCornerMax.y(), aCornerMax.z()) }; |
| 345 | gp_Pnt aConvertedPoints[aNbOfPoints]; |
| 346 | Standard_Real aConvertedMinX = std::numeric_limits<double>::max(); |
| 347 | Standard_Real aConvertedMaxX = -std::numeric_limits<double>::max(); |
| 348 | Standard_Real aConvertedMinY = std::numeric_limits<double>::max(); |
| 349 | Standard_Real aConvertedMaxY = -std::numeric_limits<double>::max(); |
| 350 | for (Standard_Integer anIdx = 0; anIdx < aNbOfPoints; ++anIdx) |
| 351 | { |
| 352 | aConvertedPoints[anIdx] = theCamera->Project (aPoints[anIdx]); |
| 353 | |
| 354 | aConvertedMinX = Min (aConvertedMinX, aConvertedPoints[anIdx].X()); |
| 355 | aConvertedMaxX = Max (aConvertedMaxX, aConvertedPoints[anIdx].X()); |
| 356 | |
| 357 | aConvertedMinY = Min (aConvertedMinY, aConvertedPoints[anIdx].Y()); |
| 358 | aConvertedMaxY = Max (aConvertedMaxY, aConvertedPoints[anIdx].Y()); |
| 359 | } |
| 360 | |
| 361 | const Standard_Boolean isBigObject = (Abs (aConvertedMaxX - aConvertedMinX) > 2.0) // width of zoom pers. object greater than width of window |
| 362 | || (Abs (aConvertedMaxY - aConvertedMinY) > 2.0); // height of zoom pers. object greater than height of window |
| 363 | const Standard_Boolean isAlreadyInScreen = (aConvertedMinX > -1.0 && aConvertedMinX < 1.0) |
| 364 | && (aConvertedMaxX > -1.0 && aConvertedMaxX < 1.0) |
| 365 | && (aConvertedMinY > -1.0 && aConvertedMinY < 1.0) |
| 366 | && (aConvertedMaxY > -1.0 && aConvertedMaxY < 1.0); |
| 367 | if (isBigObject || isAlreadyInScreen) |
| 368 | { |
| 369 | continue; |
| 370 | } |
| 371 | |
| 372 | const gp_Pnt aTPPoint = aStructure->TransformPersistence()->AnchorPoint(); |
| 373 | gp_Pnt aConvertedTPPoint = theCamera->Project (aTPPoint); |
| 374 | aConvertedTPPoint.SetZ (0.0); |
| 375 | |
| 376 | if (aConvertedTPPoint.Coord().Modulus() < Precision::Confusion()) |
| 377 | { |
| 378 | continue; |
| 379 | } |
| 380 | |
| 381 | Standard_Real aShiftX = 0.0; |
| 382 | if (aConvertedMinX < -1.0) |
| 383 | { |
| 384 | aShiftX = ((aConvertedMaxX < -1.0) ? (-(1.0 + aConvertedMaxX) + (aConvertedMaxX - aConvertedMinX)) : -(1.0 + aConvertedMinX)); |
| 385 | } |
| 386 | else if (aConvertedMaxX > 1.0) |
| 387 | { |
| 388 | aShiftX = ((aConvertedMinX > 1.0) ? ((aConvertedMinX - 1.0) + (aConvertedMaxX - aConvertedMinX)) : (aConvertedMaxX - 1.0)); |
| 389 | } |
| 390 | |
| 391 | Standard_Real aShiftY = 0.0; |
| 392 | if (aConvertedMinY < -1.0) |
| 393 | { |
| 394 | aShiftY = ((aConvertedMaxY < -1.0) ? (-(1.0 + aConvertedMaxY) + (aConvertedMaxY - aConvertedMinY)) : -(1.0 + aConvertedMinY)); |
| 395 | } |
| 396 | else if (aConvertedMaxY > 1.0) |
| 397 | { |
| 398 | aShiftY = ((aConvertedMinY > 1.0) ? ((aConvertedMinY - 1.0) + (aConvertedMaxY - aConvertedMinY)) : (aConvertedMaxY - 1.0)); |
| 399 | } |
| 400 | |
| 401 | const Standard_Real aDifX = Abs (aConvertedTPPoint.X()) - aShiftX; |
| 402 | const Standard_Real aDifY = Abs (aConvertedTPPoint.Y()) - aShiftY; |
| 403 | if (aDifX > Precision::Confusion()) |
| 404 | { |
| 405 | aMaxCoef = Max (aMaxCoef, Abs (aConvertedTPPoint.X()) / aDifX); |
| 406 | } |
| 407 | if (aDifY > Precision::Confusion()) |
| 408 | { |
| 409 | aMaxCoef = Max (aMaxCoef, Abs (aConvertedTPPoint.Y()) / aDifY); |
| 410 | } |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | return (aMaxCoef > 0.0) ? aMaxCoef : 1.0; |
| 415 | } |
| 416 | |
| 417 | // ======================================================================= |
| 418 | // function : updateBVH |
| 419 | // purpose : |
| 420 | // ======================================================================= |
| 421 | void Graphic3d_Layer::updateBVH() const |
| 422 | { |
| 423 | if (!myIsBVHPrimitivesNeedsReset) |
| 424 | { |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | myBVHPrimitives.Clear(); |
| 429 | myBVHPrimitivesTrsfPers.Clear(); |
| 430 | myAlwaysRenderedMap.Clear(); |
| 431 | myIsBVHPrimitivesNeedsReset = Standard_False; |
| 432 | for (Graphic3d_ArrayOfIndexedMapOfStructure::Iterator aMapIter (myArray); aMapIter.More(); aMapIter.Next()) |
| 433 | { |
| 434 | const Graphic3d_IndexedMapOfStructure& aStructures = aMapIter.Value(); |
| 435 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 436 | { |
| 437 | const Graphic3d_CStructure* aStruct = aStructIter.Value(); |
| 438 | if (aStruct->IsAlwaysRendered()) |
| 439 | { |
| 440 | aStruct->MarkAsNotCulled(); |
| 441 | myAlwaysRenderedMap.Add (aStruct); |
| 442 | } |
| 443 | else if (aStruct->TransformPersistence().IsNull()) |
| 444 | { |
| 445 | myBVHPrimitives.Add (aStruct); |
| 446 | } |
| 447 | else |
| 448 | { |
| 449 | myBVHPrimitivesTrsfPers.Add (aStruct); |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | // ======================================================================= |
| 456 | // function : UpdateCulling |
| 457 | // purpose : |
| 458 | // ======================================================================= |
| 459 | void Graphic3d_Layer::UpdateCulling (Standard_Integer theViewId, |
| 460 | const Graphic3d_CullingTool& theSelector, |
| 461 | const Graphic3d_RenderingParams::FrustumCulling theFrustumCullingState) |
| 462 | { |
| 463 | updateBVH(); |
| 464 | |
| 465 | myNbStructuresNotCulled = myNbStructures; |
| 466 | if (theFrustumCullingState != Graphic3d_RenderingParams::FrustumCulling_NoUpdate) |
| 467 | { |
| 468 | Standard_Boolean toTraverse = (theFrustumCullingState == Graphic3d_RenderingParams::FrustumCulling_On); |
| 469 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (myBVHPrimitives.Structures()); aStructIter.More(); aStructIter.Next()) |
| 470 | { |
| 471 | const Graphic3d_CStructure* aStruct = aStructIter.Value(); |
| 472 | aStruct->SetCulled (toTraverse); |
| 473 | } |
| 474 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (myBVHPrimitivesTrsfPers.Structures()); aStructIter.More(); aStructIter.Next()) |
| 475 | { |
| 476 | const Graphic3d_CStructure* aStruct = aStructIter.Value(); |
| 477 | aStruct->SetCulled (toTraverse); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | if (theFrustumCullingState != Graphic3d_RenderingParams::FrustumCulling_On) |
| 482 | { |
| 483 | return; |
| 484 | } |
| 485 | if (myBVHPrimitives .Size() == 0 |
| 486 | && myBVHPrimitivesTrsfPers.Size() == 0) |
| 487 | { |
| 488 | return; |
| 489 | } |
| 490 | |
| 491 | myNbStructuresNotCulled = myAlwaysRenderedMap.Extent(); |
| 492 | Graphic3d_CullingTool::CullingContext aCullCtx; |
| 493 | theSelector.SetCullingDistance(aCullCtx, myLayerSettings.CullingDistance()); |
| 494 | theSelector.SetCullingSize (aCullCtx, myLayerSettings.CullingSize()); |
| 495 | for (Standard_Integer aBVHTreeIdx = 0; aBVHTreeIdx < 2; ++aBVHTreeIdx) |
| 496 | { |
| 497 | const Standard_Boolean isTrsfPers = aBVHTreeIdx == 1; |
| 498 | opencascade::handle<BVH_Tree<Standard_Real, 3> > aBVHTree; |
| 499 | if (isTrsfPers) |
| 500 | { |
| 501 | if (myBVHPrimitivesTrsfPers.Size() == 0) |
| 502 | continue; |
| 503 | |
| 504 | const Graphic3d_Mat4d& aProjection = theSelector.ProjectionMatrix(); |
| 505 | const Graphic3d_Mat4d& aWorldView = theSelector.WorldViewMatrix(); |
| 506 | const Graphic3d_WorldViewProjState& aWVPState = theSelector.WorldViewProjState(); |
| 507 | const Standard_Integer aViewportWidth = theSelector.ViewportWidth(); |
| 508 | const Standard_Integer aViewportHeight = theSelector.ViewportHeight(); |
| 509 | |
| 510 | aBVHTree = myBVHPrimitivesTrsfPers.BVH (theSelector.Camera(), aProjection, aWorldView, aViewportWidth, aViewportHeight, aWVPState); |
| 511 | } |
| 512 | else |
| 513 | { |
| 514 | if (myBVHPrimitives.Size() == 0) |
| 515 | continue; |
| 516 | |
| 517 | aBVHTree = myBVHPrimitives.BVH(); |
| 518 | } |
| 519 | |
| 520 | if (theSelector.IsCulled (aCullCtx, aBVHTree->MinPoint (0), aBVHTree->MaxPoint (0))) |
| 521 | { |
| 522 | continue; |
| 523 | } |
| 524 | |
| 525 | Standard_Integer aStack[BVH_Constants_MaxTreeDepth]; |
| 526 | Standard_Integer aHead = -1; |
| 527 | Standard_Integer aNode = 0; // a root node |
| 528 | for (;;) |
| 529 | { |
| 530 | if (!aBVHTree->IsOuter (aNode)) |
| 531 | { |
| 532 | const Standard_Integer aLeftChildIdx = aBVHTree->Child<0> (aNode); |
| 533 | const Standard_Integer aRightChildIdx = aBVHTree->Child<1> (aNode); |
| 534 | const Standard_Boolean isLeftChildIn = !theSelector.IsCulled (aCullCtx, aBVHTree->MinPoint (aLeftChildIdx), aBVHTree->MaxPoint (aLeftChildIdx)); |
| 535 | const Standard_Boolean isRightChildIn = !theSelector.IsCulled (aCullCtx, aBVHTree->MinPoint (aRightChildIdx), aBVHTree->MaxPoint (aRightChildIdx)); |
| 536 | if (isLeftChildIn |
| 537 | && isRightChildIn) |
| 538 | { |
| 539 | aNode = myBVHIsLeftChildQueuedFirst ? aLeftChildIdx : aRightChildIdx; |
| 540 | aStack[++aHead] = myBVHIsLeftChildQueuedFirst ? aRightChildIdx : aLeftChildIdx; |
| 541 | myBVHIsLeftChildQueuedFirst = !myBVHIsLeftChildQueuedFirst; |
| 542 | } |
| 543 | else if (isLeftChildIn |
| 544 | || isRightChildIn) |
| 545 | { |
| 546 | aNode = isLeftChildIn ? aLeftChildIdx : aRightChildIdx; |
| 547 | } |
| 548 | else |
| 549 | { |
| 550 | if (aHead < 0) |
| 551 | { |
| 552 | break; |
| 553 | } |
| 554 | |
| 555 | aNode = aStack[aHead--]; |
| 556 | } |
| 557 | } |
| 558 | else |
| 559 | { |
| 560 | const Standard_Integer aStartIdx = aBVHTree->BegPrimitive (aNode); |
| 561 | const Standard_Integer anEndIdx = aBVHTree->EndPrimitive (aNode); |
| 562 | for (Standard_Integer anIdx = aStartIdx; anIdx <= anEndIdx; ++anIdx) |
| 563 | { |
| 564 | const Graphic3d_CStructure* aStruct = isTrsfPers |
| 565 | ? myBVHPrimitivesTrsfPers.GetStructureById (anIdx) |
| 566 | : myBVHPrimitives.GetStructureById (anIdx); |
| 567 | if (aStruct->IsVisible (theViewId)) |
| 568 | { |
| 569 | aStruct->MarkAsNotCulled(); |
| 570 | ++myNbStructuresNotCulled; |
| 571 | } |
| 572 | } |
| 573 | if (aHead < 0) |
| 574 | { |
| 575 | break; |
| 576 | } |
| 577 | |
| 578 | aNode = aStack[aHead--]; |
| 579 | } |
| 580 | } |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | // ======================================================================= |
| 585 | // function : Append |
| 586 | // purpose : |
| 587 | // ======================================================================= |
| 588 | Standard_Boolean Graphic3d_Layer::Append (const Graphic3d_Layer& theOther) |
| 589 | { |
| 590 | // the source priority list shouldn't have more priorities |
| 591 | const Standard_Integer aNbPriorities = theOther.NbPriorities(); |
| 592 | if (aNbPriorities > NbPriorities()) |
| 593 | { |
| 594 | return Standard_False; |
| 595 | } |
| 596 | |
| 597 | // add all structures to destination priority list |
| 598 | for (Standard_Integer aPriorityIter = 0; aPriorityIter < aNbPriorities; ++aPriorityIter) |
| 599 | { |
| 600 | const Graphic3d_IndexedMapOfStructure& aStructures = theOther.myArray (aPriorityIter); |
| 601 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 602 | { |
| 603 | Add (aStructIter.Value(), aPriorityIter); |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | return Standard_True; |
| 608 | } |
| 609 | |
| 610 | //======================================================================= |
| 611 | //function : SetLayerSettings |
| 612 | //purpose : |
| 613 | //======================================================================= |
| 614 | void Graphic3d_Layer::SetLayerSettings (const Graphic3d_ZLayerSettings& theSettings) |
| 615 | { |
| 616 | const Standard_Boolean toUpdateTrsf = !myLayerSettings.Origin().IsEqual (theSettings.Origin(), gp::Resolution()); |
| 617 | myLayerSettings = theSettings; |
| 618 | if (!toUpdateTrsf) |
| 619 | { |
| 620 | return; |
| 621 | } |
| 622 | |
| 623 | for (Graphic3d_ArrayOfIndexedMapOfStructure::Iterator aMapIter (myArray); aMapIter.More(); aMapIter.Next()) |
| 624 | { |
| 625 | Graphic3d_IndexedMapOfStructure& aStructures = aMapIter.ChangeValue(); |
| 626 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 627 | { |
| 628 | Graphic3d_CStructure* aStructure = const_cast<Graphic3d_CStructure* >(aStructIter.Value()); |
| 629 | aStructure->updateLayerTransformation(); |
| 630 | } |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | // ======================================================================= |
| 635 | // function : DumpJson |
| 636 | // purpose : |
| 637 | // ======================================================================= |
| 638 | void Graphic3d_Layer::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const |
| 639 | { |
| 640 | OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream) |
| 641 | |
| 642 | OCCT_DUMP_FIELD_VALUE_POINTER (theOStream, this) |
| 643 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myLayerId) |
| 644 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myNbStructures) |
| 645 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myNbStructuresNotCulled) |
| 646 | |
| 647 | const Standard_Integer aNbPriorities = myArray.Length(); |
| 648 | for (Standard_Integer aPriorityIter = 0; aPriorityIter < aNbPriorities; ++aPriorityIter) |
| 649 | { |
| 650 | const Graphic3d_IndexedMapOfStructure& aStructures = myArray (aPriorityIter); |
| 651 | for (Graphic3d_IndexedMapOfStructure::Iterator aStructIter (aStructures); aStructIter.More(); aStructIter.Next()) |
| 652 | { |
| 653 | const Graphic3d_CStructure* aStructure = aStructIter.Value(); |
| 654 | OCCT_DUMP_FIELD_VALUE_POINTER (theOStream, aStructure) |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myLayerSettings) |
| 659 | |
| 660 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myBVHIsLeftChildQueuedFirst) |
| 661 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsBVHPrimitivesNeedsReset) |
| 662 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsBoundingBoxNeedsReset[0]) |
| 663 | OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsBoundingBoxNeedsReset[1]) |
| 664 | |
| 665 | OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myBoundingBox[0]) |
| 666 | OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myBoundingBox[1]) |
| 667 | } |