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///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2012-2018 DreamWorks Animation LLC
//
// All rights reserved. This software is distributed under the
// Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
//
// Redistributions of source code must retain the above copyright
// and license notice and the following restrictions and disclaimer.
//
// * Neither the name of DreamWorks Animation nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// IN NO EVENT SHALL THE COPYRIGHT HOLDERS' AND CONTRIBUTORS' AGGREGATE
// LIABILITY FOR ALL CLAIMS REGARDLESS OF THEIR BASIS EXCEED US$250.00.
//
///////////////////////////////////////////////////////////////////////////
#include <cppunit/extensions/HelperMacros.h>
#include <openvdb/tools/VolumeToMesh.h>
#include <openvdb/Exceptions.h>
#include <vector>
class TestVolumeToMesh: public CppUnit::TestCase
{
public:
CPPUNIT_TEST_SUITE(TestVolumeToMesh);
CPPUNIT_TEST(testAuxiliaryDataCollection);
CPPUNIT_TEST(testUniformMeshing);
CPPUNIT_TEST_SUITE_END();
void testAuxiliaryDataCollection();
void testUniformMeshing();
};
CPPUNIT_TEST_SUITE_REGISTRATION(TestVolumeToMesh);
////////////////////////////////////////
void
TestVolumeToMesh::testAuxiliaryDataCollection()
{
typedef openvdb::tree::Tree4<float, 5, 4, 3>::Type FloatTreeType;
typedef FloatTreeType::ValueConverter<bool>::Type BoolTreeType;
const float iso = 0.0f;
const openvdb::Coord ijk(0,0,0);
FloatTreeType inputTree(1.0f);
inputTree.setValue(ijk, -1.0f);
BoolTreeType intersectionTree(false);
openvdb::tools::volume_to_mesh_internal::identifySurfaceIntersectingVoxels(
intersectionTree, inputTree, iso);
CPPUNIT_ASSERT_EQUAL(size_t(8), size_t(intersectionTree.activeVoxelCount()));
typedef FloatTreeType::ValueConverter<openvdb::Int16>::Type Int16TreeType;
typedef FloatTreeType::ValueConverter<openvdb::Index32>::Type Index32TreeType;
Int16TreeType signFlagsTree(0);
Index32TreeType pointIndexTree(99999);
openvdb::tools::volume_to_mesh_internal::computeAuxiliaryData(
signFlagsTree, pointIndexTree, intersectionTree, inputTree, iso);
const int flags = int(signFlagsTree.getValue(ijk));
CPPUNIT_ASSERT(bool(flags & openvdb::tools::volume_to_mesh_internal::INSIDE));
CPPUNIT_ASSERT(bool(flags & openvdb::tools::volume_to_mesh_internal::EDGES));
CPPUNIT_ASSERT(bool(flags & openvdb::tools::volume_to_mesh_internal::XEDGE));
CPPUNIT_ASSERT(bool(flags & openvdb::tools::volume_to_mesh_internal::YEDGE));
CPPUNIT_ASSERT(bool(flags & openvdb::tools::volume_to_mesh_internal::ZEDGE));
}
void
TestVolumeToMesh::testUniformMeshing()
{
typedef openvdb::tree::Tree4<float, 5, 4, 3>::Type FloatTreeType;
typedef openvdb::Grid<FloatTreeType> FloatGridType;
FloatGridType grid(1.0f);
// test voxel region meshing
openvdb::CoordBBox bbox(openvdb::Coord(1), openvdb::Coord(6));
grid.tree().fill(bbox, -1.0f);
std::vector<openvdb::Vec3s> points;
std::vector<openvdb::Vec4I> quads;
std::vector<openvdb::Vec3I> triangles;
openvdb::tools::volumeToMesh(grid, points, quads);
CPPUNIT_ASSERT(!points.empty());
CPPUNIT_ASSERT_EQUAL(size_t(216), quads.size());
points.clear();
quads.clear();
triangles.clear();
grid.clear();
// test tile region meshing
grid.tree().addTile(FloatTreeType::LeafNodeType::LEVEL + 1, openvdb::Coord(0), -1.0f, true);
openvdb::tools::volumeToMesh(grid, points, quads);
CPPUNIT_ASSERT(!points.empty());
CPPUNIT_ASSERT_EQUAL(size_t(384), quads.size());
points.clear();
quads.clear();
triangles.clear();
grid.clear();
// test tile region and bool volume meshing
typedef FloatTreeType::ValueConverter<bool>::Type BoolTreeType;
typedef openvdb::Grid<BoolTreeType> BoolGridType;
BoolGridType maskGrid(false);
maskGrid.tree().addTile(BoolTreeType::LeafNodeType::LEVEL + 1, openvdb::Coord(0), true, true);
openvdb::tools::volumeToMesh(maskGrid, points, quads);
CPPUNIT_ASSERT(!points.empty());
CPPUNIT_ASSERT_EQUAL(size_t(384), quads.size());
}
// Copyright (c) 2012-2018 DreamWorks Animation LLC
// All rights reserved. This software is distributed under the
// Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
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