52 #ifndef OPENVDB_TOOLS_MULTIRESGRID_HAS_BEEN_INCLUDED 53 #define OPENVDB_TOOLS_MULTIRESGRID_HAS_BEEN_INCLUDED 69 #include <tbb/blocked_range.h> 70 #include <tbb/enumerable_thread_specific.h> 71 #include <tbb/parallel_for.h> 84 template<
typename TreeType>
146 TreeType& tree(
size_t level);
151 const TreeType& constTree(
size_t level)
const;
156 TreePtr treePtr(
size_t level);
161 ConstTreePtr constTreePtr(
size_t level)
const;
192 GridPtr grid(
size_t level);
197 ConstGridPtr grid(
size_t level)
const;
206 template<Index Order>
207 GridPtr
createGrid(
float level,
size_t grainSize = 1)
const;
235 static Vec3R xyz(
const Coord& in_ijk,
size_t in_level,
size_t out_level);
238 static Vec3R xyz(
const Vec3R& in_xyz,
size_t in_level,
size_t out_level);
239 static Vec3R xyz(
const Vec3R& in_xyz,
double in_level,
double out_level);
247 template<Index Order>
257 ValueType sampleValue(
const Coord& in_ijk,
size_t in_level,
size_t out_level)
const;
258 template<Index Order>
259 ValueType sampleValue(
const Vec3R& in_ijk,
size_t in_level,
size_t out_level)
const;
268 template<Index Order>
269 ValueType sampleValue(
const Coord& ijk,
double level)
const;
278 template<Index Order>
279 ValueType sampleValue(
const Vec3R& xyz,
double level)
const;
289 ValueType prolongateVoxel(
const Coord& coords,
const size_t level)
const;
295 void prolongateActiveVoxels(
size_t destlevel,
size_t grainSize = 1);
303 ValueType restrictVoxel(
Coord ijk,
const size_t level,
bool useInjection =
false)
const;
311 void restrictActiveVoxels(
size_t destlevel,
size_t grainSize = 1);
314 void print(std::ostream& = std::cout,
int verboseLevel = 1)
const;
356 void topDownRestrict(
bool useInjection);
358 inline void initMeta();
371 template<Index Order>
375 template<
typename OpType>
struct CookOp;
378 std::vector<TreePtr> mTrees;
383 template<
typename TreeType>
384 MultiResGrid<TreeType>::
385 MultiResGrid(
size_t levels,
ValueType background,
double voxelSize)
387 , mTransform(math::Transform::createLinearTransform( voxelSize ))
390 for (
size_t i=0; i<levels; ++i) mTrees[i] =
TreePtr(
new TreeType(background));
393 template<
typename TreeType>
398 , mTransform( grid.transform().copy() )
401 mTrees[0].reset(
new TreeType(
grid.tree() ) );
402 mTrees[0]->voxelizeActiveTiles();
403 this->topDownRestrict(useInjection);
406 template<
typename TreeType>
411 , mTransform( grid->transform().copy() )
414 mTrees[0] =
grid->treePtr();
415 mTrees[0]->voxelizeActiveTiles();
417 this->topDownRestrict(useInjection);
420 template<
typename TreeType>
424 assert( level < mTrees.size() );
425 return *mTrees[level];
428 template<
typename TreeType>
432 assert( level < mTrees.size() );
433 return *mTrees[level];
436 template<
typename TreeType>
440 assert( level < mTrees.size() );
441 return mTrees[level];
444 template<
typename TreeType>
448 assert( level < mTrees.size() );
449 return mTrees[level];
452 template<
typename TreeType>
458 if (level>0) xform->preScale(
Real(1 << level) );
462 std::stringstream ss;
463 ss << this->getName() <<
"_level_" << level;
468 template<
typename TreeType>
472 return const_cast<MultiResGrid*>(
this)->grid(level);
475 template<
typename TreeType>
476 template<Index Order>
480 assert( level >= 0.0f && level <=
float(mTrees.size()-1) );
484 xform->preScale(
math::Pow(2.0f, level) );
488 std::stringstream ss;
489 ss << this->getName() <<
"_level_" << level;
492 if (
size_t(floorf(level)) == size_t(ceilf(level)) ) {
493 grid->
setTree( this->constTree(
size_t(floorf(level))).copy() );
495 FractionOp<Order> tmp(*
this, grid->
tree(), level, grainSize);
505 template<
typename TreeType>
510 for (
size_t level=0; level<mTrees.size(); ++level) grids->push_back(this->grid(level));
514 template<
typename TreeType>
519 for (
size_t level=0; level<mTrees.size(); ++level) grids->push_back(this->grid(level));
523 template<
typename TreeType>
525 xyz(
const Coord& in_ijk,
size_t in_level,
size_t out_level)
530 template<
typename TreeType>
532 xyz(
const Vec3R& in_xyz,
size_t in_level,
size_t out_level)
534 return in_xyz *
Real(1 << in_level) /
Real(1 << out_level);
537 template<
typename TreeType>
539 xyz(
const Vec3R& in_xyz,
double in_level,
double out_level)
541 return in_xyz *
math::Pow(2.0, in_level - out_level);
545 template<
typename TreeType>
546 template<Index Order>
550 assert( in_level >= 0 && in_level < mTrees.size() );
551 assert( out_level >= 0 && out_level < mTrees.size() );
556 template<
typename TreeType>
557 template<Index Order>
561 assert( in_level >= 0 && in_level < mTrees.size() );
562 assert( out_level >= 0 && out_level < mTrees.size() );
567 template<
typename TreeType>
568 template<Index Order>
572 assert( level >= 0.0 && level <=
double(mTrees.size()-1) );
573 const size_t level0 = size_t(floor(level)), level1 = size_t(ceil(level));
574 const ValueType v0 = this->
template sampleValue<Order>( ijk, 0, level0 );
575 if ( level0 == level1 )
return v0;
576 assert( level1 - level0 == 1 );
577 const ValueType v1 = this->
template sampleValue<Order>( ijk, 0, level1 );
584 template<
typename TreeType>
585 template<Index Order>
589 assert( level >= 0.0 && level <=
double(mTrees.size()-1) );
590 const size_t level0 = size_t(floor(level)), level1 = size_t(ceil(level));
591 const ValueType v0 = this->
template sampleValue<Order>( xyz, 0, level0 );
592 if ( level0 == level1 )
return v0;
593 assert( level1 - level0 == 1 );
594 const ValueType v1 = this->
template sampleValue<Order>( xyz, 0, level1 );
601 template<
typename TreeType>
605 assert( level+1 < mTrees.size() );
607 return ProlongateOp::run(ijk, acc);
610 template<
typename TreeType>
614 assert( destlevel < mTrees.size()-1 );
615 TreeType &fineTree = *mTrees[ destlevel ];
616 const TreeType &coarseTree = *mTrees[ destlevel+1 ];
617 CookOp<ProlongateOp> tmp( coarseTree, fineTree, grainSize );
620 template<
typename TreeType>
624 assert( destlevel > 0 && destlevel < mTrees.size() );
625 const TreeType &fineTree = *mTrees[ destlevel-1 ];
626 if ( useInjection )
return fineTree.getValue(ijk<<1);
628 return RestrictOp::run( ijk, acc);
631 template<
typename TreeType>
635 assert( destlevel > 0 && destlevel < mTrees.size() );
636 const TreeType &fineTree = *mTrees[ destlevel-1 ];
637 TreeType &coarseTree = *mTrees[ destlevel ];
638 CookOp<RestrictOp> tmp( fineTree, coarseTree, grainSize );
641 template<
typename TreeType>
643 print(std::ostream& os,
int verboseLevel)
const 645 os <<
"MultiResGrid with " << mTrees.size() <<
" levels\n";
646 for (
size_t i=0; i<mTrees.size(); ++i) {
647 os <<
"Level " << i <<
": ";
648 mTrees[i]->print(os, verboseLevel);
652 os <<
"Additional metadata:" << std::endl;
654 os <<
" " << it->first;
656 const std::string value = it->second->str();
657 if (!value.empty()) os <<
": " << value;
663 os <<
"Transform:" << std::endl;
664 transform().print(os,
" ");
668 template<
typename TreeType>
672 const size_t levels = this->numLevels();
676 this->insertMeta(
"MultiResGrid_Levels",
Int64Metadata( levels ) );
679 template<
typename TreeType>
680 void MultiResGrid<TreeType>::
681 topDownRestrict(
bool useInjection)
684 for (
size_t n=1; n<mTrees.size(); ++n) {
685 const TreeType &fineTree = *mTrees[n-1];
686 mTrees[n] = TreePtr(
new TreeType( fineTree.background() ) );
687 TreeType &coarseTree = *mTrees[n];
689 for (ValueOnCIter it = fineTree.cbeginValueOn(); it; ++it) {
690 const Coord ijk = it.getCoord();
691 if ( (ijk[0] & 1) || (ijk[1] & 1) || (ijk[2] & 1) )
continue;
692 coarseTree.setValue( ijk >> 1, *it );
695 MaskOp tmp(fineTree, coarseTree, 128);
696 this->restrictActiveVoxels(n, 64);
705 template<
typename TreeType>
708 using MaskT =
typename TreeType::template ValueConverter<ValueMask>::Type;
709 using PoolType = tbb::enumerable_thread_specific<TreeType>;
712 using VoxelIterT =
typename ManagerT::LeafNodeType::ValueOnCIter;
714 MaskOp(
const TreeType& fineTree, TreeType& coarseTree,
size_t grainSize = 1)
715 : mPool(new
PoolType( coarseTree ) )
717 assert( coarseTree.empty() );
727 tbb::parallel_for(leafs.
leafRange( grainSize ), *
this);
730 using IterT =
typename PoolType::const_iterator;
731 for (IterT it=mPool->begin(); it!=mPool->end(); ++it) coarseTree.topologyUnion( *it );
736 Accessor coarseAcc( mPool->local() );
737 for (
typename RangeT::Iterator leafIter = range.begin(); leafIter; ++leafIter) {
738 for (
VoxelIterT voxelIter = leafIter->cbeginValueOn(); voxelIter; ++voxelIter) {
739 Coord ijk = voxelIter.getCoord();
740 if ( (ijk[2] & 1) || (ijk[1] & 1) || (ijk[0] & 1) )
continue;
741 coarseAcc.setValueOn( ijk >> 1 );
748 template<
typename TreeType>
749 template<Index Order>
752 using MaskT =
typename TreeType::template ValueConverter<ValueMask>::Type;
753 using PoolType = tbb::enumerable_thread_specific<MaskT>;
754 using PoolIterT =
typename PoolType::iterator;
757 using Range1 =
typename Manager1::LeafRange;
758 using Range2 =
typename Manager2::LeafRange;
763 size_t grainSize = 1)
766 , mTree0( &*(parent.mTrees[
size_t(floorf(level))]) )
767 , mTree1( &*(parent.mTrees[
size_t(ceilf(level))]) )
769 assert( midTree.empty() );
770 assert( mTree0 != mTree1 );
773 MaskT examplar(
false );
774 mPool =
new PoolType( examplar );
778 tbb::parallel_for( manager.
leafRange(grainSize), *this );
782 tbb::parallel_for(tbb::blocked_range<PoolIterT>(mPool->begin(),mPool->end(),1), *
this);
785 for (PoolIterT it=mPool->begin(); it!=mPool->end(); ++it) midTree.topologyUnion( *it );
789 Manager2 manager( midTree );
790 tbb::parallel_for(manager.leafRange(grainSize), *
this);
793 void operator()(
const Range1& range)
const 795 using VoxelIter =
typename Manager1::LeafNodeType::ValueOnCIter;
806 for (
typename Range1::Iterator leafIter = range.begin(); leafIter; ++leafIter) {
807 for (VoxelIter voxelIter = leafIter->cbeginValueOn(); voxelIter; ++voxelIter) {
808 Coord ijk = voxelIter.getCoord();
810 const auto value0 = ijk[0] *
scale;
811 const auto value1 = ijk[1] *
scale;
812 const auto value2 = ijk[2] *
scale;
818 acc.setValueOn( ijk );
822 void operator()(
const tbb::blocked_range<PoolIterT>& range)
const 824 for (PoolIterT it=range.begin(); it!=range.end(); ++it) {
828 void operator()(
const Range2 &r)
const 830 using VoxelIter =
typename TreeType::LeafNodeType::ValueOnIter;
844 const float scale0 =
math::Pow( 2.0f, b );
845 const float scale1 =
math::Pow( 2.0f,-a );
846 ConstAccessor acc0( *mTree0 ), acc1( *mTree1 );
847 for (
typename Range2::Iterator leafIter = r.begin(); leafIter; ++leafIter) {
848 for (VoxelIter voxelIter = leafIter->beginValueOn(); voxelIter; ++voxelIter) {
849 const Vec3R xyz =
Vec3R( voxelIter.getCoord().data() );
853 const auto value0 = a*v0;
854 const auto value1 = b*v1;
856 voxelIter.setValue( ValueType(value0 + value1) );
862 const TreeType *mTree0, *mTree1;
866 template<
typename TreeType>
867 template<
typename OperatorType>
868 struct MultiResGrid<TreeType>::CookOp
870 using ManagerT = tree::LeafManager<TreeType>;
871 using RangeT =
typename ManagerT::LeafRange;
873 CookOp(
const TreeType& srcTree, TreeType& dstTree,
size_t grainSize): acc(srcTree)
875 ManagerT leafs(dstTree);
876 tbb::parallel_for(leafs.leafRange(grainSize), *
this);
878 CookOp(
const CookOp &other): acc(other.acc.tree()) {}
880 void operator()(
const RangeT& range)
const 882 for (
auto leafIt = range.begin(); leafIt; ++leafIt) {
883 auto& phi = leafIt.buffer(0);
884 for (
auto voxelIt = leafIt->beginValueOn(); voxelIt; ++voxelIt) {
885 phi.setValue(voxelIt.pos(), OperatorType::run(voxelIt.getCoord(), acc));
890 const ConstAccessor acc;
894 template<
typename TreeType>
917 for (
int i=-1; i<=1; i+=2) {
918 for (
int j=-1; j<=1; j+=2) {
927 template<
typename TreeType>
935 switch ( (ijk[0] & 1) | ((ijk[1] & 1) << 1) | ((ijk[2] & 1) << 2) ) {
965 for (
int i=-1; i<=1; i+=2) {
966 for (
int j=-1; j<=1; j+=2) {
978 #endif // OPENVDB_TOOLS_MULTIRESGRID_HAS_BEEN_INCLUDED
TreeType & tree()
Return a reference to this grid's tree, which might be shared with other grids.
Definition: Grid.h:919
void setTree(TreeBase::Ptr) override
Associate the given tree with this grid, in place of its existing tree.
Definition: Grid.h:1442
SharedPtr< GridCPtrVec > GridCPtrVecPtr
Definition: Grid.h:539
SharedPtr< GridPtrVec > GridPtrVecPtr
Definition: Grid.h:534
General-purpose arithmetic and comparison routines, most of which accept arbitrary value types (or at...
OPENVDB_API uint32_t getGridClass(std::ios_base &)
Return the class (GRID_LEVEL_SET, GRID_UNKNOWN, etc.) of the grid currently being read from or writte...
TypedMetadata< int64_t > Int64Metadata
Definition: Metadata.h:412
SharedPtr< const Grid > ConstPtr
Definition: Grid.h:597
TypedMetadata< float > FloatMetadata
Definition: Metadata.h:410
#define OPENVDB_THROW(exception, message)
Definition: Exceptions.h:109
NodeManager produces linear arrays of all tree nodes allowing for efficient threading and bottom-up p...
Signed (x, y, z) 32-bit integer coordinates.
Definition: Coord.h:52
static const char *const META_GRID_NAME
Definition: Grid.h:371
math::Vec3< Real > Vec3R
Definition: Types.h:79
float Round(float x)
Return x rounded to the nearest integer.
Definition: Math.h:793
std::shared_ptr< T > SharedPtr
Definition: Types.h:139
TypedMetadata< std::string > StringMetadata
Definition: Metadata.h:413
GridType::Ptr createGrid(const typename GridType::ValueType &background)
Create a new grid of type GridType with a given background value.
Definition: Grid.h:1717
Container class that associates a tree with a transform and metadata.
Definition: Grid.h:55
Defined various multi-threaded utility functions for trees.
const Int32 * data() const
Definition: Coord.h:167
std::vector< GridBase::Ptr > GridPtrVec
Definition: Grid.h:531
Tag dispatch class that distinguishes topology copy constructors from deep copy constructors.
Definition: Types.h:750
static std::string gridClassToString(GridClass)
Return the metadata string value for the given class of volumetric data.
double Real
Definition: Types.h:67
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h:128
static const char *const META_GRID_CLASS
Definition: Grid.h:369
Propagate the signs of distance values from the active voxels in the narrow band to the inactive valu...
Implementation of morphological dilation and erosion.
void setName(const std::string &)
Specify a name for this grid.
Definition: Exceptions.h:40
GridClass
Definition: Types.h:502
GridClass getGridClass() const
Return the class of volumetric data (level set, fog volume, etc.) that is stored in this grid.
static GridClass stringToGridClass(const std::string &)
Return the class of volumetric data specified by the given string.
const ValueType & getValue(const Coord &xyz) const
Return the value of the voxel at the given coordinates.
Definition: ValueAccessor.h:257
SharedPtr< Grid > Ptr
Definition: Grid.h:596
This class manages a linear array of pointers to a given tree's leaf nodes, as well as optional auxil...
Definition: LeafManager.h:109
Type FractionalPart(Type x)
Return the fractional part of x.
Definition: Math.h:817
Definition: ValueAccessor.h:220
LeafRange leafRange(size_t grainsize=1) const
Return a TBB-compatible LeafRange.
Definition: LeafManager.h:385
static Ptr create()
Return a new grid with background value zero.
Definition: Grid.h:1319
void setTransform(math::Transform::Ptr)
Associate the given transform with this grid, in place of its existing transform.
Definition: Grid.h:1245
Defines various finite difference stencils by means of the "curiously recurring template pattern" on ...
std::vector< GridBase::ConstPtr > GridCPtrVec
Definition: Grid.h:536
Definition: Exceptions.h:92
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:180
A LeafManager manages a linear array of pointers to a given tree's leaf nodes, as well as optional au...
Definition: LeafManager.h:126
MatType scale(const Vec3< typename MatType::value_type > &s)
Return a matrix that scales by s.
Definition: Mat.h:647
Coord offsetBy(Int32 dx, Int32 dy, Int32 dz) const
Definition: Coord.h:119
Type Pow(Type x, int n)
Return xn.
Definition: Math.h:535