OpenVDB 3.2.0

Clip.h
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1 //
3 // Copyright (c) 2012-2016 DreamWorks Animation LLC
4 //
5 // All rights reserved. This software is distributed under the
6 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
7 //
8 // Redistributions of source code must retain the above copyright
9 // and license notice and the following restrictions and disclaimer.
10 //
11 // * Neither the name of DreamWorks Animation nor the names of
12 // its contributors may be used to endorse or promote products derived
13 // from this software without specific prior written permission.
14 //
15 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL,
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21 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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28 //
30 //
35
36 #ifndef OPENVDB_TOOLS_CLIP_HAS_BEEN_INCLUDED
37 #define OPENVDB_TOOLS_CLIP_HAS_BEEN_INCLUDED
38
39 #include <openvdb/Types.h>// for ValueMask
40 #include <openvdb/Grid.h>
41 #include <openvdb/math/Math.h>// for isNegative
42 #include <openvdb/tree/LeafManager.h>
43 #include "GridTransformer.h" // for resampleToMatch()
44 #include <boost/type_traits/is_same.hpp>
45 #include <boost/type_traits/is_signed.hpp>
46 #include <boost/utility/enable_if.hpp>
47 #include <tbb/blocked_range.h>
48 #include <tbb/parallel_reduce.h>
49 #include "Prune.h"
50
51
52 namespace openvdb {
53 OPENVDB_USE_VERSION_NAMESPACE
54 namespace OPENVDB_VERSION_NAME {
55 namespace tools {
56
61 template<typename GridType> OPENVDB_STATIC_SPECIALIZATION
62 inline typename GridType::Ptr clip(const GridType& grid, const BBoxd&);
63
74 template<typename GridType, typename MaskTreeType> OPENVDB_STATIC_SPECIALIZATION
75 inline typename GridType::Ptr clip(const GridType& grid, const Grid<MaskTreeType>& mask);
76
77
79
80
81 namespace clip_internal {
82
83
85
86
87 template<typename TreeT>
88 class MaskInteriorVoxels
89 {
90 public:
91 typedef typename TreeT::ValueType ValueT;
92 typedef typename TreeT::LeafNodeType LeafNodeT;
93
94 MaskInteriorVoxels(const TreeT& tree): mAcc(tree) {}
95
96 template <typename LeafNodeType>
97 void operator()(LeafNodeType &leaf, size_t /*leafIndex*/) const
98 {
99 const LeafNodeT *refLeaf = mAcc.probeConstLeaf(leaf.origin());
100 if (refLeaf) {
101 typename LeafNodeType::ValueOffIter iter = leaf.beginValueOff();
102 for ( ; iter; ++iter) {
103 const Index pos = iter.pos();
104 leaf.setActiveState(pos, math::isNegative(refLeaf->getValue(pos)));
105 }
106 }
107 }
108
109 private:
110 tree::ValueAccessor<const TreeT> mAcc;
111 };
112
113
115
116
117 template<typename TreeT>
118 class CopyLeafNodes
119 {
120 public:
121 typedef typename TreeT::template ValueConverter<ValueMask>::Type MaskTreeT;
122 typedef tree::LeafManager<const MaskTreeT> MaskLeafManagerT;
123
124 CopyLeafNodes(const TreeT& tree, const MaskLeafManagerT& leafNodes);
125
126 void run(bool threaded = true);
127
128 typename TreeT::Ptr tree() const { return mNewTree; }
129
130 CopyLeafNodes(CopyLeafNodes&, tbb::split);
131 void operator()(const tbb::blocked_range<size_t>&);
132 void join(const CopyLeafNodes& rhs) { mNewTree->merge(*rhs.mNewTree); }
133
134 private:
135 const MaskTreeT* mClipMask;
136 const TreeT* mTree;
137 const MaskLeafManagerT* mLeafNodes;
138 typename TreeT::Ptr mNewTree;
139 };
140
141
142 template<typename TreeT>
143 CopyLeafNodes<TreeT>::CopyLeafNodes(const TreeT& tree, const MaskLeafManagerT& leafNodes)
144 : mTree(&tree)
145 , mLeafNodes(&leafNodes)
146 , mNewTree(new TreeT(mTree->background()))
147 {
148 }
149
150
151 template<typename TreeT>
152 CopyLeafNodes<TreeT>::CopyLeafNodes(CopyLeafNodes& rhs, tbb::split)
153 : mTree(rhs.mTree)
154 , mLeafNodes(rhs.mLeafNodes)
155 , mNewTree(new TreeT(mTree->background()))
156 {
157 }
158
159
160 template<typename TreeT>
161 void
162 CopyLeafNodes<TreeT>::run(bool threaded)
163 {
164 if (threaded) tbb::parallel_reduce(mLeafNodes->getRange(), *this);
165 else (*this)(mLeafNodes->getRange());
166 }
167
168
169 template<typename TreeT>
170 void
171 CopyLeafNodes<TreeT>::operator()(const tbb::blocked_range<size_t>& range)
172 {
173 typedef typename TreeT::LeafNodeType LeafT;
174 typedef typename MaskTree::LeafNodeType MaskLeafT;
175 typename MaskLeafT::ValueOnCIter it;
176
177 tree::ValueAccessor<TreeT> acc(*mNewTree);
178 tree::ValueAccessor<const TreeT> refAcc(*mTree);
179
180 for (size_t n = range.begin(); n != range.end(); ++n) {
181 const MaskLeafT& maskLeaf = mLeafNodes->leaf(n);
182 const Coord& ijk = maskLeaf.origin();
183 const LeafT* refLeaf = refAcc.probeConstLeaf(ijk);
184
185 LeafT* newLeaf = acc.touchLeaf(ijk);
186
187 if (refLeaf) {
188 for (it = maskLeaf.cbeginValueOn(); it; ++it) {
189 const Index pos = it.pos();
190 newLeaf->setValueOnly(pos, refLeaf->getValue(pos));
191 newLeaf->setActiveState(pos, refLeaf->isValueOn(pos));
192 }
193 } else {
194 typename TreeT::ValueType value;
195 bool isActive = refAcc.probeValue(ijk, value);
196
197 for (it = maskLeaf.cbeginValueOn(); it; ++it) {
198 const Index pos = it.pos();
199 newLeaf->setValueOnly(pos, value);
200 newLeaf->setActiveState(pos, isActive);
201 }
202 }
203 }
204 }
205
206
208
209
210 struct BoolSampler
211 {
212 static const char* name() { return "bin"; }
213 static int radius() { return 2; }
214 static bool mipmap() { return false; }
215 static bool consistent() { return true; }
216
217 template<class TreeT>
218 static bool sample(const TreeT& inTree,
219 const Vec3R& inCoord, typename TreeT::ValueType& result)
220 {
221 Coord ijk;
222 ijk[0] = int(std::floor(inCoord[0]));
223 ijk[1] = int(std::floor(inCoord[1]));
224 ijk[2] = int(std::floor(inCoord[2]));
225 return inTree.probeValue(ijk, result);
226 }
227 };
228
229
231
232
233 // Convert a grid of one type to a grid of another type
234 template<typename FromGridT, typename ToGridT>
235 struct ConvertGrid
236 {
237 typedef typename FromGridT::Ptr FromGridPtrT;
238 typedef typename ToGridT::Ptr ToGridPtrT;
239 ToGridPtrT operator()(const FromGridPtrT& grid) { return ToGridPtrT(new ToGridT(*grid)); }
240 };
241
242 // Partial specialization that avoids copying when
243 // the input and output grid types are the same
244 template<typename GridT>
245 struct ConvertGrid<GridT, GridT>
246 {
247 typedef typename GridT::Ptr GridPtrT;
248 GridPtrT operator()(const GridPtrT& grid) { return grid; }
249 };
250
251
253
254
255 // Convert a grid of arbitrary type to a mask grid and return a pointer to the new grid.
256 template<typename GridT>
257 inline typename boost::disable_if<boost::is_same<ValueMask, typename GridT::BuildType>,
258 typename GridT::template ValueConverter<ValueMask>::Type::Ptr>::type
259 convertToMaskGrid(const GridT& grid)
260 {
261 typedef typename GridT::template ValueConverter<ValueMask>::Type MaskGridT;
262 typedef typename MaskGridT::Ptr MaskGridPtrT;
263
264 // Convert the input grid to a boolean mask grid (with the same tree configuration).
265 MaskGridPtrT mask = MaskGridT::create(/*background=*/false);
266 mask->topologyUnion(grid);
267 mask->setTransform(grid.constTransform().copy());
268 return mask;
269 }
270
271 // Overload that avoids any processing if the input grid is already a mask grid
272 template<typename GridT>
273 inline typename boost::enable_if<boost::is_same<ValueMask, typename GridT::BuildType>,
274 typename GridT::Ptr>::type
275 convertToMaskGrid(const GridT& grid)
276 {
277 return grid.copy(); // shallow copy
278 }
279
280
282
283
284 template<typename GridType>
285 inline typename GridType::Ptr
286 doClip(const GridType& grid, const typename GridType::template ValueConverter<ValueMask>::Type& aMask)
287 {
288 typedef typename GridType::TreeType TreeT;
289 typedef typename GridType::TreeType::template ValueConverter<ValueMask>::Type MaskTreeT;
290
291 const GridClass gridClass = grid.getGridClass();
292 const TreeT& tree = grid.tree();
293
294 MaskTreeT mask(false);
295 mask.topologyUnion(tree);
296
297 if (gridClass == GRID_LEVEL_SET) {
298 tree::LeafManager<MaskTreeT> leafNodes(mask);
299 leafNodes.foreach(MaskInteriorVoxels<TreeT>(tree));
300
301 tree::ValueAccessor<const TreeT> acc(tree);
302
303 typename MaskTreeT::ValueAllIter iter(mask);
304 iter.setMaxDepth(MaskTreeT::ValueAllIter::LEAF_DEPTH - 1);
305
306 for ( ; iter; ++iter) {
307 iter.setActiveState(math::isNegative(acc.getValue(iter.getCoord())));
308 }
309 }
310
311 mask.topologyIntersection(aMask.constTree());
312
313 typename GridType::Ptr outGrid;
314 {
315 // Copy voxel values and states.
316 tree::LeafManager<const MaskTreeT> leafNodes(mask);
317 CopyLeafNodes<TreeT> maskOp(tree, leafNodes);
318 maskOp.run();
319 outGrid = GridType::create(maskOp.tree());
320 }
321 {
322 // Copy tile values and states.
323 tree::ValueAccessor<const TreeT> refAcc(tree);
324 tree::ValueAccessor<const MaskTreeT> maskAcc(mask);
325
326 typename TreeT::ValueAllIter it(outGrid->tree());
327 it.setMaxDepth(TreeT::ValueAllIter::LEAF_DEPTH - 1);
328 for ( ; it; ++it) {
329 Coord ijk = it.getCoord();
330
331 if (maskAcc.isValueOn(ijk)) {
332 typename TreeT::ValueType value;
333 bool isActive = refAcc.probeValue(ijk, value);
334
335 it.setValue(value);
336 if (!isActive) it.setValueOff();
337 }
338 }
339 }
340
341 outGrid->setTransform(grid.transform().copy());
342 if (gridClass != GRID_LEVEL_SET) outGrid->setGridClass(gridClass);
343
344 return outGrid;
345 }
346
347 } // namespace clip_internal
348
349
351
352
353 template<typename GridType>
354 OPENVDB_STATIC_SPECIALIZATION
355 inline typename GridType::Ptr
356 clip(const GridType& grid, const BBoxd& bbox)
357 {
358 typedef typename GridType::template ValueConverter<ValueMask>::Type MaskGridT;
359
360 // Transform the world-space bounding box into the source grid's index space.
361 Vec3d idxMin, idxMax;
362 math::calculateBounds(grid.constTransform(), bbox.min(), bbox.max(), idxMin, idxMax);
363 CoordBBox region(Coord::floor(idxMin), Coord::floor(idxMax));
364 // Construct a boolean mask grid that is true inside the index-space bounding box
365 // and false everywhere else.
366 MaskGridT clipMask(/*background=*/false);
367 clipMask.fill(region, /*value=*/true, /*active=*/true);
368
369 return clip_internal::doClip(grid, clipMask);
370 }
371
372
373 template<typename GridType1, typename TreeType2>
374 OPENVDB_STATIC_SPECIALIZATION
375 inline typename GridType1::Ptr
376 clip(const GridType1& grid1, const Grid<TreeType2>& grid2)
377 {
378 typedef typename GridType1::template ValueConverter<ValueMask>::Type MaskGridT1;
379 typedef typename MaskGridT1::Ptr MaskGridPtrT1;
380
381 typedef Grid<TreeType2> GridType2;
382 typedef typename GridType2::template ValueConverter<ValueMask>::Type MaskGridT2;
383 typedef typename MaskGridT2::Ptr MaskGridPtrT2;
384
385 // Convert the mask grid to a boolean grid with the same tree configuration.
386 MaskGridPtrT2 maskGrid = clip_internal::convertToMaskGrid( grid2 );
387
388 // Resample the boolean mask grid into the source grid's index space.
389 if (grid1.constTransform() != maskGrid->constTransform()) {
390 MaskGridPtrT2 resampledMask = MaskGridT2::create(/*background=*/false);
391 resampledMask->setTransform(grid1.constTransform().copy());
392 tools::resampleToMatch<clip_internal::BoolSampler>(*maskGrid, *resampledMask);
393 tools::prune(resampledMask->tree());
394 maskGrid = resampledMask;
395 }
396
397 // Convert the bool mask grid to a bool grid of the same configuration as the source grid.
398 MaskGridPtrT1 clipMask =
399 clip_internal::ConvertGrid</*from=*/MaskGridT2, /*to=*/MaskGridT1>()( maskGrid );
400
401 // Clip the source grid against the boolean mask grid.
402 return clip_internal::doClip(grid1, *clipMask);
403 }
404
405 } // namespace tools
406 } // namespace OPENVDB_VERSION_NAME
407 } // namespace openvdb
408
409 #endif // OPENVDB_TOOLS_CLIP_HAS_BEEN_INCLUDED
410
411 // Copyright (c) 2012-2016 DreamWorks Animation LLC
412 // All rights reserved. This software is distributed under the
413 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
openvdb::v3_2_0::tools::clip_internal::BoolSampler::name
static const char * name()
Definition: Clip.h:212
openvdb::v3_2_0::GridClass
GridClass
Definition: Types.h:211
Types.h
Math.h
General-purpose arithmetic and comparison routines, most of which accept arbitrary value types (or at...
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::CopyLeafNodes
CopyLeafNodes(const TreeT &tree, const MaskLeafManagerT &leafNodes)
Definition: Clip.h:143
openvdb::v3_2_0::math::calculateBounds
OPENVDB_API void calculateBounds(const Transform &t, const Vec3d &minWS, const Vec3d &maxWS, Vec3d &minIS, Vec3d &maxIS)
Calculate an axis-aligned bounding box in index space from an axis-aligned bounding box in world spac...
openvdb::v3_2_0::tree::ValueAccessor::probeValue
bool probeValue(const Coord &xyz, ValueType &value) const
Return the active state of the voxel as well as its value.
Definition: ValueAccessor.h:266
openvdb::v3_2_0::tree::LeafManager::getRange
RangeType getRange(size_t grainsize=1) const
Return a tbb::blocked_range of leaf array indices.
Definition: LeafManager.h:378
openvdb::v3_2_0::tools::clip
OPENVDB_STATIC_SPECIALIZATION GridType1::Ptr clip(const GridType1 &grid1, const Grid< TreeType2 > &grid2)
Definition: Clip.h:376
openvdb::v3_2_0::tools::clip_internal::ConvertGrid::ToGridPtrT
ToGridT::Ptr ToGridPtrT
Definition: Clip.h:238
openvdb::v3_2_0::math::Vec3< Real >
openvdb::v3_2_0::BBoxd
math::BBox< Vec3d > BBoxd
Definition: Types.h:86
openvdb::v3_2_0::tools::clip_internal::MaskInteriorVoxels::operator()
void operator()(LeafNodeType &leaf, size_t) const
Definition: Clip.h:97
openvdb::v3_2_0::tree::LeafManager
This class manages a linear array of pointers to a given tree&#39;s leaf nodes, as well as optional auxil...
Definition: LeafManager.h:115
openvdb::v3_2_0::math::Coord
Signed (x, y, z) 32-bit integer coordinates.
Definition: Coord.h:47
openvdb::v3_2_0::tools::clip_internal::MaskInteriorVoxels::LeafNodeT
TreeT::LeafNodeType LeafNodeT
Definition: Clip.h:92
GridTransformer.h
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes
Definition: Clip.h:118
openvdb::v3_2_0::math::BBox< Vec3d >
openvdb::v3_2_0::tree::ValueAccessor< const TreeT >
Prune.h
Defined various multi-threaded utility functions for trees.
openvdb::v3_2_0::Index
Index32 Index
Definition: Types.h:58
openvdb::v3_2_0::tools::clip_internal::BoolSampler::sample
static bool sample(const TreeT &inTree, const Vec3R &inCoord, typename TreeT::ValueType &result)
Definition: Clip.h:218
openvdb::v3_2_0::tools::clip_internal::BoolSampler
Definition: Clip.h:210
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
Definition: version.h:43
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::operator()
void operator()(const tbb::blocked_range< size_t > &)
Definition: Clip.h:171
openvdb::v3_2_0::math::Vec3d
Vec3< double > Vec3d
Definition: Vec3.h:651
openvdb::v3_2_0::tools::clip
OPENVDB_STATIC_SPECIALIZATION GridType::Ptr clip(const GridType &grid, const BBoxd &)
Clip the given grid against a world-space bounding box and return a new grid containing the result...
Definition: Clip.h:356
openvdb::v3_2_0::tools::clip_internal::convertToMaskGrid
boost::disable_if< boost::is_same< ValueMask, typename GridT::BuildType >, typename GridT::template ValueConverter< ValueMask >::Type::Ptr >::type convertToMaskGrid(const GridT &grid)
Definition: Clip.h:259
openvdb::v3_2_0::tools::clip_internal::ConvertGrid::operator()
ToGridPtrT operator()(const FromGridPtrT &grid)
Definition: Clip.h:239
openvdb::v3_2_0::tree::ValueAccessor::getValue
const ValueType & getValue(const Coord &xyz) const
Return the value of the voxel at the given coordinates.
Definition: ValueAccessor.h:256
openvdb::v3_2_0::tools::clip_internal::BoolSampler::mipmap
static bool mipmap()
Definition: Clip.h:214
openvdb::v3_2_0::tools::clip_internal::MaskInteriorVoxels
Definition: Clip.h:88
openvdb::v3_2_0::tools::clip_internal::ConvertGrid
Definition: Clip.h:235
openvdb::v3_2_0::math::Coord::floor
static Coord floor(const Vec3< T > &xyz)
Return the largest integer coordinates that are not greater than xyz (node centered conversion)...
Definition: Coord.h:82
openvdb
Definition: Exceptions.h:39
openvdb::v3_2_0::tools::clip_internal::ConvertGrid::FromGridPtrT
FromGridT::Ptr FromGridPtrT
Definition: Clip.h:237
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::MaskTreeT
TreeT::template ValueConverter< ValueMask >::Type MaskTreeT
Definition: Clip.h:121
openvdb::v3_2_0::tree::ValueAccessor::isValueOn
bool isValueOn(const Coord &xyz) const
Return the active state of the voxel at the given coordinates.
Definition: ValueAccessor.h:263
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::join
void join(const CopyLeafNodes &rhs)
Definition: Clip.h:132
openvdb::v3_2_0::math::BBox::min
const Vec3T & min() const
Return a const reference to the minimum point of the BBox.
Definition: BBox.h:81
openvdb::v3_2_0::tools::clip_internal::MaskInteriorVoxels::MaskInteriorVoxels
MaskInteriorVoxels(const TreeT &tree)
Definition: Clip.h:94
openvdb::v3_2_0::math::BBox::max
const Vec3T & max() const
Return a const reference to the maximum point of the BBox.
Definition: BBox.h:84
openvdb::v3_2_0::tools::clip_internal::BoolSampler::consistent
static bool consistent()
Definition: Clip.h:215
openvdb::v3_2_0::tools::clip_internal::BoolSampler::radius
static int radius()
Definition: Clip.h:213
openvdb::v3_2_0::tree::ValueAccessor::touchLeaf
LeafNodeT * touchLeaf(const Coord &xyz)
Return a pointer to the leaf node that contains voxel (x, y, z). If no such node exists, create one, but preserve the values and active states of all voxels.
Definition: ValueAccessor.h:393
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::tree
TreeT::Ptr tree() const
Definition: Clip.h:128
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::MaskLeafManagerT
tree::LeafManager< const MaskTreeT > MaskLeafManagerT
Definition: Clip.h:122
openvdb::v3_2_0::tools::clip_internal::ConvertGrid< GridT, GridT >::GridPtrT
GridT::Ptr GridPtrT
Definition: Clip.h:247
openvdb::v3_2_0::math::CoordBBox
Axis-aligned bounding box of signed integer coordinates.
Definition: Coord.h:259
OPENVDB_STATIC_SPECIALIZATION
#define OPENVDB_STATIC_SPECIALIZATION
Macro for determining if there are sufficient C++0x/C++11 features.
Definition: Platform.h:91
openvdb::v3_2_0::tools::clip_internal::ConvertGrid< GridT, GridT >::operator()
GridPtrT operator()(const GridPtrT &grid)
Definition: Clip.h:248
openvdb::v3_2_0::tree::LeafManager::leaf
LeafType & leaf(size_t leafIdx) const
Return a pointer to the leaf node at index leafIdx in the array.
Definition: LeafManager.h:354
Grid.h
openvdb::v3_2_0::tools::prune
void prune(TreeT &tree, typename TreeT::ValueType tolerance=zeroVal< typename TreeT::ValueType >(), bool threaded=true, size_t grainSize=1)
Reduce the memory footprint of a tree by replacing with tiles any nodes whose values are all the same...
Definition: Prune.h:374
openvdb::v3_2_0::tools::clip_internal::CopyLeafNodes::run
void run(bool threaded=true)
Definition: Clip.h:162
openvdb::v3_2_0::math::isNegative
bool isNegative(const Type &x)
Return true if x is less than zero.
Definition: Math.h:354
openvdb::v3_2_0::GRID_LEVEL_SET
Definition: Types.h:213
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:71
LeafManager.h
A LeafManager manages a linear array of pointers to a given tree&#39;s leaf nodes, as well as optional au...
openvdb::v3_2_0::tree::Tree::LeafNodeType
RootNodeType::LeafNodeType LeafNodeType
Definition: Tree.h:214
openvdb::v3_2_0::tools::clip_internal::MaskInteriorVoxels::ValueT
TreeT::ValueType ValueT
Definition: Clip.h:91
openvdb::v3_2_0::tree::ValueAccessor::probeConstLeaf
const LeafNodeT * probeConstLeaf(const Coord &xyz) const
Return a pointer to the leaf node that contains voxel (x, y, z), or NULL if no such node exists...
Definition: ValueAccessor.h:429
openvdb::v3_2_0::tree::LeafManager::foreach
void foreach(const LeafOp &op, bool threaded=true, size_t grainSize=1)
Threaded method that applies a user-supplied functor to each leaf node in the LeafManager.
Definition: LeafManager.h:515
openvdb::v3_2_0::tools::clip_internal::doClip
GridType::Ptr doClip(const GridType &grid, const typename GridType::template ValueConverter< ValueMask >::Type &aMask)
Definition: Clip.h:286
openvdb::v3_2_0::Grid
Container class that associates a tree with a transform and metadata.
Definition: Grid.h:54