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This commit is contained in:
David Williams
2014-09-25 22:38:01 +02:00
parent c560e84be5
commit 86357d66b7
106 changed files with 50344 additions and 50344 deletions
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278
tests/TestAStarPathfinder.cpp
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@ -1,139 +1,139 @@
/*******************************************************************************
Copyright (c) 2011 David Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestAStarPathfinder.h"
#include "PolyVoxCore/AStarPathfinder.h"
#include "PolyVoxCore/Material.h"
#include "PolyVoxCore/RawVolume.h"
#include <QtTest>
using namespace PolyVox;
template< typename VolumeType>
bool testVoxelValidator(const VolumeType* volData, const Vector3DInt32& v3dPos)
{
//Voxels are considered valid candidates for the path if they are inside the volume...
if(volData->getEnclosingRegion().containsPoint(v3dPos) == false)
{
return false;
}
typename VolumeType::VoxelType voxel = volData->getVoxel(v3dPos, WrapModes::Validate); // FIXME use templatised version of getVoxel(), but watch out for Linux compile issues.
if(voxel != 0)
{
return false;
}
return true;
}
void TestAStarPathfinder::testExecute()
{
const Vector3DInt32 expectedResult[] =
{
Vector3DInt32(0,0,0),
Vector3DInt32(1,1,1),
Vector3DInt32(2,1,2),
Vector3DInt32(3,1,3),
Vector3DInt32(3,1,4),
Vector3DInt32(3,1,5),
Vector3DInt32(3,1,6),
Vector3DInt32(3,1,7),
Vector3DInt32(4,2,8),
Vector3DInt32(5,3,9),
Vector3DInt32(5,3,10),
Vector3DInt32(5,3,11),
Vector3DInt32(6,4,12),
Vector3DInt32(7,5,13),
Vector3DInt32(8,6,13),
Vector3DInt32(9,7,13),
Vector3DInt32(9,8,13),
Vector3DInt32(10,9,13),
Vector3DInt32(11,10,14),
Vector3DInt32(12,11,15),
Vector3DInt32(13,12,15),
Vector3DInt32(14,13,15),
Vector3DInt32(14,14,15),
Vector3DInt32(15,15,15)
};
const int32_t uVolumeSideLength = 16;
//Create a volume
RawVolume<uint8_t> volData(Region(Vector3DInt32(0,0,0), Vector3DInt32(uVolumeSideLength-1, uVolumeSideLength-1, uVolumeSideLength-1)));
//Clear the volume
for(int z = 0; z < uVolumeSideLength; z++)
{
for(int y = 0; y < uVolumeSideLength; y++)
{
for(int x = 0; x < uVolumeSideLength; x++)
{
uint8_t solidVoxel(0);
volData.setVoxelAt(x,y,z,solidVoxel);
}
}
}
//Place a solid cube in the middle of it
for(int z = 4; z < 12; z++)
{
for(int y = 4; y < 12; y++)
{
for(int x = 4; x < 12; x++)
{
uint8_t solidVoxel(1);
volData.setVoxelAt(x,y,z,solidVoxel);
}
}
}
//List to store the resulting path
std::list<Vector3DInt32> result;
//Create an AStarPathfinder
AStarPathfinderParams< RawVolume<uint8_t> > params(&volData, Vector3DInt32(0,0,0), Vector3DInt32(15,15,15), &result, 1.0f, 10000, TwentySixConnected, &testVoxelValidator<RawVolume<uint8_t> >);
AStarPathfinder< RawVolume<uint8_t> > pathfinder(params);
//Execute the pathfinder.
QBENCHMARK {
pathfinder.execute();
}
//Make sure the right number of steps were created.
QCOMPARE(result.size(), static_cast<size_t>(24));
//Make sure that each step is correct.
uint32_t uExpectedIndex = 0;
for(std::list<Vector3DInt32>::iterator iterResult = result.begin(); iterResult != result.end(); iterResult++)
{
Vector3DInt32 res = *iterResult;
Vector3DInt32 exp = expectedResult[uExpectedIndex];
QCOMPARE(res, exp);
uExpectedIndex++;
}
}
QTEST_MAIN(TestAStarPathfinder)
/*******************************************************************************
Copyright (c) 2011 David Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestAStarPathfinder.h"
#include "PolyVoxCore/AStarPathfinder.h"
#include "PolyVoxCore/Material.h"
#include "PolyVoxCore/RawVolume.h"
#include <QtTest>
using namespace PolyVox;
template< typename VolumeType>
bool testVoxelValidator(const VolumeType* volData, const Vector3DInt32& v3dPos)
{
//Voxels are considered valid candidates for the path if they are inside the volume...
if(volData->getEnclosingRegion().containsPoint(v3dPos) == false)
{
return false;
}
typename VolumeType::VoxelType voxel = volData->getVoxel(v3dPos, WrapModes::Validate); // FIXME use templatised version of getVoxel(), but watch out for Linux compile issues.
if(voxel != 0)
{
return false;
}
return true;
}
void TestAStarPathfinder::testExecute()
{
const Vector3DInt32 expectedResult[] =
{
Vector3DInt32(0,0,0),
Vector3DInt32(1,1,1),
Vector3DInt32(2,1,2),
Vector3DInt32(3,1,3),
Vector3DInt32(3,1,4),
Vector3DInt32(3,1,5),
Vector3DInt32(3,1,6),
Vector3DInt32(3,1,7),
Vector3DInt32(4,2,8),
Vector3DInt32(5,3,9),
Vector3DInt32(5,3,10),
Vector3DInt32(5,3,11),
Vector3DInt32(6,4,12),
Vector3DInt32(7,5,13),
Vector3DInt32(8,6,13),
Vector3DInt32(9,7,13),
Vector3DInt32(9,8,13),
Vector3DInt32(10,9,13),
Vector3DInt32(11,10,14),
Vector3DInt32(12,11,15),
Vector3DInt32(13,12,15),
Vector3DInt32(14,13,15),
Vector3DInt32(14,14,15),
Vector3DInt32(15,15,15)
};
const int32_t uVolumeSideLength = 16;
//Create a volume
RawVolume<uint8_t> volData(Region(Vector3DInt32(0,0,0), Vector3DInt32(uVolumeSideLength-1, uVolumeSideLength-1, uVolumeSideLength-1)));
//Clear the volume
for(int z = 0; z < uVolumeSideLength; z++)
{
for(int y = 0; y < uVolumeSideLength; y++)
{
for(int x = 0; x < uVolumeSideLength; x++)
{
uint8_t solidVoxel(0);
volData.setVoxelAt(x,y,z,solidVoxel);
}
}
}
//Place a solid cube in the middle of it
for(int z = 4; z < 12; z++)
{
for(int y = 4; y < 12; y++)
{
for(int x = 4; x < 12; x++)
{
uint8_t solidVoxel(1);
volData.setVoxelAt(x,y,z,solidVoxel);
}
}
}
//List to store the resulting path
std::list<Vector3DInt32> result;
//Create an AStarPathfinder
AStarPathfinderParams< RawVolume<uint8_t> > params(&volData, Vector3DInt32(0,0,0), Vector3DInt32(15,15,15), &result, 1.0f, 10000, TwentySixConnected, &testVoxelValidator<RawVolume<uint8_t> >);
AStarPathfinder< RawVolume<uint8_t> > pathfinder(params);
//Execute the pathfinder.
QBENCHMARK {
pathfinder.execute();
}
//Make sure the right number of steps were created.
QCOMPARE(result.size(), static_cast<size_t>(24));
//Make sure that each step is correct.
uint32_t uExpectedIndex = 0;
for(std::list<Vector3DInt32>::iterator iterResult = result.begin(); iterResult != result.end(); iterResult++)
{
Vector3DInt32 res = *iterResult;
Vector3DInt32 exp = expectedResult[uExpectedIndex];
QCOMPARE(res, exp);
uExpectedIndex++;
}
}
QTEST_MAIN(TestAStarPathfinder)

254
tests/TestArray.cpp
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@ -1,127 +1,127 @@
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestArray.h"
#include "PolyVoxCore/Array.h"
#include <QtTest>
using namespace PolyVox;
void TestArray::testCArraySpeed()
{
const int width = 64;
const int height = 32;
const int depth = 16;
int cArray[width][height][depth];
QBENCHMARK
{
int ct = 1;
int expectedTotal = 0;
for (int z = 0; z < depth; z++)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
cArray[x][y][z] = ct;
expectedTotal += cArray[x][y][z];
ct++;
}
}
}
}
}
void TestArray::testPolyVoxArraySpeed()
{
const int width = 64;
const int height = 32;
const int depth = 16;
Array<3, int> polyvoxArray(width, height, depth);
QBENCHMARK
{
int ct = 1;
int expectedTotal = 0;
for (int z = 0; z < depth; z++)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
polyvoxArray(x, y, z) = ct;
expectedTotal += polyvoxArray(x, y, z);
ct++;
}
}
}
}
}
void TestArray::testReadWrite()
{
int width = 5;
int height = 10;
int depth = 20;
Array<3, int> myArray(width, height, depth);
int ct = 1;
int expectedTotal = 0;
for(int z = 0; z < depth; z++)
{
for(int y = 0; y < height; y++)
{
for(int x = 0; x < width; x++)
{
myArray(x, y, z) = ct;
expectedTotal += myArray(x, y, z);
ct++;
}
}
}
ct = 1;
int total = 0;
for(int z = 0; z < depth; z++)
{
for(int y = 0; y < height; y++)
{
for(int x = 0; x < width; x++)
{
QCOMPARE(myArray(x, y, z), ct);
total += myArray(x, y, z);
ct++;
}
}
}
QCOMPARE(total, expectedTotal);
}
QTEST_MAIN(TestArray)
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestArray.h"
#include "PolyVoxCore/Array.h"
#include <QtTest>
using namespace PolyVox;
void TestArray::testCArraySpeed()
{
const int width = 64;
const int height = 32;
const int depth = 16;
int cArray[width][height][depth];
QBENCHMARK
{
int ct = 1;
int expectedTotal = 0;
for (int z = 0; z < depth; z++)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
cArray[x][y][z] = ct;
expectedTotal += cArray[x][y][z];
ct++;
}
}
}
}
}
void TestArray::testPolyVoxArraySpeed()
{
const int width = 64;
const int height = 32;
const int depth = 16;
Array<3, int> polyvoxArray(width, height, depth);
QBENCHMARK
{
int ct = 1;
int expectedTotal = 0;
for (int z = 0; z < depth; z++)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
polyvoxArray(x, y, z) = ct;
expectedTotal += polyvoxArray(x, y, z);
ct++;
}
}
}
}
}
void TestArray::testReadWrite()
{
int width = 5;
int height = 10;
int depth = 20;
Array<3, int> myArray(width, height, depth);
int ct = 1;
int expectedTotal = 0;
for(int z = 0; z < depth; z++)
{
for(int y = 0; y < height; y++)
{
for(int x = 0; x < width; x++)
{
myArray(x, y, z) = ct;
expectedTotal += myArray(x, y, z);
ct++;
}
}
}
ct = 1;
int total = 0;
for(int z = 0; z < depth; z++)
{
for(int y = 0; y < height; y++)
{
for(int x = 0; x < width; x++)
{
QCOMPARE(myArray(x, y, z), ct);
total += myArray(x, y, z);
ct++;
}
}
}
QCOMPARE(total, expectedTotal);
}
QTEST_MAIN(TestArray)

32
tests/TestCubicSurfaceExtractor.cpp
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@ -34,26 +34,26 @@ freely, subject to the following restrictions:
using namespace PolyVox;
template<typename _VoxelType>
class CustomIsQuadNeeded
{
template<typename _VoxelType>
class CustomIsQuadNeeded
{
public:
typedef _VoxelType VoxelType;
bool operator()(VoxelType back, VoxelType front, VoxelType& materialToUse)
{
// Not a useful test - it just does something different
// to the DefaultIsQuadNeeded so we can check it compiles.
if ((back > 1) && (front <= 1))
{
bool operator()(VoxelType back, VoxelType front, VoxelType& materialToUse)
{
// Not a useful test - it just does something different
// to the DefaultIsQuadNeeded so we can check it compiles.
if ((back > 1) && (front <= 1))
{
materialToUse = static_cast<VoxelType>(back);
return true;
}
else
{
return false;
}
}
return true;
}
else
{
return false;
}
}
};
// Runs the surface extractor for a given type.

472
tests/TestSurfaceExtractor.cpp
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@ -1,236 +1,236 @@
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestSurfaceExtractor.h"
#include "PolyVoxCore/Density.h"
#include "PolyVoxCore/FilePager.h"
#include "PolyVoxCore/MaterialDensityPair.h"
#include "PolyVoxCore/RawVolume.h"
#include "PolyVoxCore/PagedVolume.h"
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
#include <QtTest>
using namespace PolyVox;
// Test our ability to modify the behaviour of the MarchingCubesSurfaceExtractor. This simple example only modifies
// the threshold (and actually this can be achieved by passing a parameter to the constructor of the
// DefaultMarchingCubesController) but you could implement custom behaviour in the other members
// if you wanted too. Actually, it's not clear if this ability is really useful because I can't think
// what you'd modify apart from the threshold but the ability is at least available. Also, the
// DefaultMarchingCubesController is templatised whereas this exmple shows that controllers don't
// have to be.
class CustomMarchingCubesController
{
public:
typedef float DensityType;
typedef float MaterialType;
float convertToDensity(float voxel)
{
return voxel;
}
float convertToMaterial(float /*voxel*/)
{
return 1.0f;
}
float blendMaterials(float /*a*/, float /*b*/, float /*weight*/)
{
return 1.0f;
}
float getThreshold(void)
{
return 50.0f;
}
};
// These 'writeDensityValueToVoxel' functions provide a unified interface for writting densities to primative and class voxel types.
// They are conceptually the inverse of the 'convertToDensity' function used by the MarchingCubesSurfaceExtractor. They probably shouldn't be part
// of PolyVox, but they might be usful to other tests so we cold move them into a 'Tests.h' or something in the future.
template<typename VoxelType>
void writeDensityValueToVoxel(int valueToWrite, VoxelType& voxel)
{
voxel = valueToWrite;
}
template<>
void writeDensityValueToVoxel(int valueToWrite, MaterialDensityPair88& voxel)
{
voxel.setDensity(valueToWrite);
}
template<typename VoxelType>
void writeMaterialValueToVoxel(int /*valueToWrite*/, VoxelType& /*voxel*/)
{
//Most types don't have a material
return;
}
template<>
void writeMaterialValueToVoxel(int valueToWrite, MaterialDensityPair88& voxel)
{
voxel.setMaterial(valueToWrite);
}
template <typename VolumeType>
VolumeType* createAndFillVolume(void)
{
const int32_t uVolumeSideLength = 64;
FilePager<typename VolumeType::VoxelType>* pager = new FilePager<typename VolumeType::VoxelType>(".");
//Create empty volume
VolumeType* volData = new VolumeType(Region(Vector3DInt32(0, 0, 0), Vector3DInt32(uVolumeSideLength - 1, uVolumeSideLength - 1, uVolumeSideLength - 1)), pager);
// Fill
for (int32_t z = 0; z < uVolumeSideLength; z++)
{
for (int32_t y = 0; y < uVolumeSideLength; y++)
{
for (int32_t x = 0; x < uVolumeSideLength; x++)
{
// Create a density field which changes throughout the volume. It's
// zero in the lower corner and increasing as the coordinates increase.
typename VolumeType::VoxelType voxelValue;
writeDensityValueToVoxel<typename VolumeType::VoxelType>(x + y + z, voxelValue);
writeMaterialValueToVoxel<typename VolumeType::VoxelType>(z > uVolumeSideLength / 2 ? 42 : 79, voxelValue);
volData->setVoxelAt(x, y, z, voxelValue);
}
}
}
return volData;
}
// From http://stackoverflow.com/a/5289624
float randomFloat(float a, float b)
{
float random = ((float)rand()) / (float)RAND_MAX;
float diff = b - a;
float r = random * diff;
return a + r;
}
template <typename VolumeType>
VolumeType* createAndFillVolumeWithNoise(int32_t iVolumeSideLength, float minValue, float maxValue)
{
FilePager<float>* pager = new FilePager<float>(".");
//Create empty volume
VolumeType* volData = new VolumeType(Region(Vector3DInt32(0, 0, 0), Vector3DInt32(iVolumeSideLength - 1, iVolumeSideLength - 1, iVolumeSideLength - 1)), pager);
// Seed generator for consistency between runs.
srand(12345);
// Fill
for (int32_t z = 0; z < iVolumeSideLength; z++)
{
for (int32_t y = 0; y < iVolumeSideLength; y++)
{
for (int32_t x = 0; x < iVolumeSideLength; x++)
{
float voxelValue = randomFloat(minValue, maxValue);
volData->setVoxelAt(x, y, z, voxelValue);
}
}
}
return volData;
}
void TestSurfaceExtractor::testBehaviour()
{
// These tests apply the Marching Cubes surface extractor to volumes of various voxel types. In addition we sometimes make use of custom controllers
// and user-provided meshes to make sure these various combinations work as expected.
//
// It is also noted that the number of indices and vertices is varying quite significantly based on the voxel type. This seems unexpected, but could
// be explained if some overflow is occuring when writing data into the volume, causing volumes of different voxel types to have different distributions.
// Of course, the use of a custom controller will also make a significant diference, but this probably does need investigating further in the future.
// This basic test just uses the default controller and automatically generates a mesh of the appropriate type.
auto uintVol = createAndFillVolume< PagedVolume<uint8_t> >();
auto uintMesh = extractMarchingCubesMesh(uintVol, uintVol->getEnclosingRegion());
QCOMPARE(uintMesh.getNoOfVertices(), uint32_t(12096)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(uintMesh.getNoOfIndices(), uint32_t(35157)); // Verifies size of mesh
QCOMPARE(uintMesh.getIndex(100), uint32_t(44)); // Verifies that we have 32-bit indices
QCOMPARE(uintMesh.getVertex(100).data, uint8_t(1)); // Not really meaningful for a primative type
// This test makes use of a custom controller
auto floatVol = createAndFillVolume< PagedVolume<float> >();
CustomMarchingCubesController floatCustomController;
auto floatMesh = extractMarchingCubesMesh(floatVol, floatVol->getEnclosingRegion(), floatCustomController);
QCOMPARE(floatMesh.getNoOfVertices(), uint32_t(16113)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(floatMesh.getNoOfIndices(), uint32_t(22053)); // Verifies size of mesh
QCOMPARE(floatMesh.getIndex(100), uint32_t(26)); // Verifies that we have 32-bit indices
QCOMPARE(floatMesh.getVertex(100).data, float(1.0f)); // Not really meaningful for a primative type
// This test makes use of a user provided mesh. It uses the default controller, but we have to explicitly provide this because C++ won't let us
// use a default for the second-to-last parameter but noot use a default for the last parameter.
auto intVol = createAndFillVolume< PagedVolume<int8_t> >();
Mesh< MarchingCubesVertex< int8_t >, uint16_t > intMesh;
extractMarchingCubesMeshCustom(intVol, intVol->getEnclosingRegion(), &intMesh);
QCOMPARE(intMesh.getNoOfVertices(), uint16_t(11718)); // Verifies size of mesh and that we have 16-bit indices
QCOMPARE(intMesh.getNoOfIndices(), uint32_t(34041)); // Verifies size of mesh
QCOMPARE(intMesh.getIndex(100), uint16_t(29)); // Verifies that we have 16-bit indices
QCOMPARE(intMesh.getVertex(100).data, int8_t(1)); // Not really meaningful for a primative type
// This test makes use of a user-provided mesh and also a custom controller.
auto doubleVol = createAndFillVolume< PagedVolume<double> >();
CustomMarchingCubesController doubleCustomController;
Mesh< MarchingCubesVertex< double >, uint16_t > doubleMesh;
extractMarchingCubesMeshCustom(doubleVol, doubleVol->getEnclosingRegion(), &doubleMesh, doubleCustomController);
QCOMPARE(doubleMesh.getNoOfVertices(), uint16_t(16113)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(doubleMesh.getNoOfIndices(), uint32_t(22053)); // Verifies size of mesh
QCOMPARE(doubleMesh.getIndex(100), uint16_t(26)); // Verifies that we have 32-bit indices
QCOMPARE(doubleMesh.getVertex(100).data, double(1.0f)); // Not really meaningful for a primative type
// This test ensures the extractor works on a non-primitive voxel type.
auto materialVol = createAndFillVolume< PagedVolume<MaterialDensityPair88> >();
auto materialMesh = extractMarchingCubesMesh(materialVol, materialVol->getEnclosingRegion());
QCOMPARE(materialMesh.getNoOfVertices(), uint32_t(12096)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(materialMesh.getNoOfIndices(), uint32_t(35157)); // Verifies size of mesh
QCOMPARE(materialMesh.getIndex(100), uint32_t(44)); // Verifies that we have 32-bit indices
QCOMPARE(materialMesh.getVertex(100).data.getMaterial(), uint16_t(79)); // Verify the data attached to the vertex
}
void TestSurfaceExtractor::testEmptyVolumePerformance()
{
auto emptyVol = createAndFillVolumeWithNoise< PagedVolume<float> >(128, -2.0f, -1.0f);
Mesh< MarchingCubesVertex< float >, uint16_t > emptyMesh;
QBENCHMARK{ extractMarchingCubesMeshCustom(emptyVol, Region(32, 32, 32, 63, 63, 63), &emptyMesh); }
QCOMPARE(emptyMesh.getNoOfVertices(), uint16_t(0));
}
void TestSurfaceExtractor::testNoiseVolumePerformance()
{
auto noiseVol = createAndFillVolumeWithNoise< PagedVolume<float> >(128, -1.0f, 1.0f);
Mesh< MarchingCubesVertex< float >, uint16_t > noiseMesh;
QBENCHMARK{ extractMarchingCubesMeshCustom(noiseVol, Region(32, 32, 32, 63, 63, 63), &noiseMesh); }
QCOMPARE(noiseMesh.getNoOfVertices(), uint16_t(48967));
}
QTEST_MAIN(TestSurfaceExtractor)
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestSurfaceExtractor.h"
#include "PolyVoxCore/Density.h"
#include "PolyVoxCore/FilePager.h"
#include "PolyVoxCore/MaterialDensityPair.h"
#include "PolyVoxCore/RawVolume.h"
#include "PolyVoxCore/PagedVolume.h"
#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
#include <QtTest>
using namespace PolyVox;
// Test our ability to modify the behaviour of the MarchingCubesSurfaceExtractor. This simple example only modifies
// the threshold (and actually this can be achieved by passing a parameter to the constructor of the
// DefaultMarchingCubesController) but you could implement custom behaviour in the other members
// if you wanted too. Actually, it's not clear if this ability is really useful because I can't think
// what you'd modify apart from the threshold but the ability is at least available. Also, the
// DefaultMarchingCubesController is templatised whereas this exmple shows that controllers don't
// have to be.
class CustomMarchingCubesController
{
public:
typedef float DensityType;
typedef float MaterialType;
float convertToDensity(float voxel)
{
return voxel;
}
float convertToMaterial(float /*voxel*/)
{
return 1.0f;
}
float blendMaterials(float /*a*/, float /*b*/, float /*weight*/)
{
return 1.0f;
}
float getThreshold(void)
{
return 50.0f;
}
};
// These 'writeDensityValueToVoxel' functions provide a unified interface for writting densities to primative and class voxel types.
// They are conceptually the inverse of the 'convertToDensity' function used by the MarchingCubesSurfaceExtractor. They probably shouldn't be part
// of PolyVox, but they might be usful to other tests so we cold move them into a 'Tests.h' or something in the future.
template<typename VoxelType>
void writeDensityValueToVoxel(int valueToWrite, VoxelType& voxel)
{
voxel = valueToWrite;
}
template<>
void writeDensityValueToVoxel(int valueToWrite, MaterialDensityPair88& voxel)
{
voxel.setDensity(valueToWrite);
}
template<typename VoxelType>
void writeMaterialValueToVoxel(int /*valueToWrite*/, VoxelType& /*voxel*/)
{
//Most types don't have a material
return;
}
template<>
void writeMaterialValueToVoxel(int valueToWrite, MaterialDensityPair88& voxel)
{
voxel.setMaterial(valueToWrite);
}
template <typename VolumeType>
VolumeType* createAndFillVolume(void)
{
const int32_t uVolumeSideLength = 64;
FilePager<typename VolumeType::VoxelType>* pager = new FilePager<typename VolumeType::VoxelType>(".");
//Create empty volume
VolumeType* volData = new VolumeType(Region(Vector3DInt32(0, 0, 0), Vector3DInt32(uVolumeSideLength - 1, uVolumeSideLength - 1, uVolumeSideLength - 1)), pager);
// Fill
for (int32_t z = 0; z < uVolumeSideLength; z++)
{
for (int32_t y = 0; y < uVolumeSideLength; y++)
{
for (int32_t x = 0; x < uVolumeSideLength; x++)
{
// Create a density field which changes throughout the volume. It's
// zero in the lower corner and increasing as the coordinates increase.
typename VolumeType::VoxelType voxelValue;
writeDensityValueToVoxel<typename VolumeType::VoxelType>(x + y + z, voxelValue);
writeMaterialValueToVoxel<typename VolumeType::VoxelType>(z > uVolumeSideLength / 2 ? 42 : 79, voxelValue);
volData->setVoxelAt(x, y, z, voxelValue);
}
}
}
return volData;
}
// From http://stackoverflow.com/a/5289624
float randomFloat(float a, float b)
{
float random = ((float)rand()) / (float)RAND_MAX;
float diff = b - a;
float r = random * diff;
return a + r;
}
template <typename VolumeType>
VolumeType* createAndFillVolumeWithNoise(int32_t iVolumeSideLength, float minValue, float maxValue)
{
FilePager<float>* pager = new FilePager<float>(".");
//Create empty volume
VolumeType* volData = new VolumeType(Region(Vector3DInt32(0, 0, 0), Vector3DInt32(iVolumeSideLength - 1, iVolumeSideLength - 1, iVolumeSideLength - 1)), pager);
// Seed generator for consistency between runs.
srand(12345);
// Fill
for (int32_t z = 0; z < iVolumeSideLength; z++)
{
for (int32_t y = 0; y < iVolumeSideLength; y++)
{
for (int32_t x = 0; x < iVolumeSideLength; x++)
{
float voxelValue = randomFloat(minValue, maxValue);
volData->setVoxelAt(x, y, z, voxelValue);
}
}
}
return volData;
}
void TestSurfaceExtractor::testBehaviour()
{
// These tests apply the Marching Cubes surface extractor to volumes of various voxel types. In addition we sometimes make use of custom controllers
// and user-provided meshes to make sure these various combinations work as expected.
//
// It is also noted that the number of indices and vertices is varying quite significantly based on the voxel type. This seems unexpected, but could
// be explained if some overflow is occuring when writing data into the volume, causing volumes of different voxel types to have different distributions.
// Of course, the use of a custom controller will also make a significant diference, but this probably does need investigating further in the future.
// This basic test just uses the default controller and automatically generates a mesh of the appropriate type.
auto uintVol = createAndFillVolume< PagedVolume<uint8_t> >();
auto uintMesh = extractMarchingCubesMesh(uintVol, uintVol->getEnclosingRegion());
QCOMPARE(uintMesh.getNoOfVertices(), uint32_t(12096)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(uintMesh.getNoOfIndices(), uint32_t(35157)); // Verifies size of mesh
QCOMPARE(uintMesh.getIndex(100), uint32_t(44)); // Verifies that we have 32-bit indices
QCOMPARE(uintMesh.getVertex(100).data, uint8_t(1)); // Not really meaningful for a primative type
// This test makes use of a custom controller
auto floatVol = createAndFillVolume< PagedVolume<float> >();
CustomMarchingCubesController floatCustomController;
auto floatMesh = extractMarchingCubesMesh(floatVol, floatVol->getEnclosingRegion(), floatCustomController);
QCOMPARE(floatMesh.getNoOfVertices(), uint32_t(16113)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(floatMesh.getNoOfIndices(), uint32_t(22053)); // Verifies size of mesh
QCOMPARE(floatMesh.getIndex(100), uint32_t(26)); // Verifies that we have 32-bit indices
QCOMPARE(floatMesh.getVertex(100).data, float(1.0f)); // Not really meaningful for a primative type
// This test makes use of a user provided mesh. It uses the default controller, but we have to explicitly provide this because C++ won't let us
// use a default for the second-to-last parameter but noot use a default for the last parameter.
auto intVol = createAndFillVolume< PagedVolume<int8_t> >();
Mesh< MarchingCubesVertex< int8_t >, uint16_t > intMesh;
extractMarchingCubesMeshCustom(intVol, intVol->getEnclosingRegion(), &intMesh);
QCOMPARE(intMesh.getNoOfVertices(), uint16_t(11718)); // Verifies size of mesh and that we have 16-bit indices
QCOMPARE(intMesh.getNoOfIndices(), uint32_t(34041)); // Verifies size of mesh
QCOMPARE(intMesh.getIndex(100), uint16_t(29)); // Verifies that we have 16-bit indices
QCOMPARE(intMesh.getVertex(100).data, int8_t(1)); // Not really meaningful for a primative type
// This test makes use of a user-provided mesh and also a custom controller.
auto doubleVol = createAndFillVolume< PagedVolume<double> >();
CustomMarchingCubesController doubleCustomController;
Mesh< MarchingCubesVertex< double >, uint16_t > doubleMesh;
extractMarchingCubesMeshCustom(doubleVol, doubleVol->getEnclosingRegion(), &doubleMesh, doubleCustomController);
QCOMPARE(doubleMesh.getNoOfVertices(), uint16_t(16113)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(doubleMesh.getNoOfIndices(), uint32_t(22053)); // Verifies size of mesh
QCOMPARE(doubleMesh.getIndex(100), uint16_t(26)); // Verifies that we have 32-bit indices
QCOMPARE(doubleMesh.getVertex(100).data, double(1.0f)); // Not really meaningful for a primative type
// This test ensures the extractor works on a non-primitive voxel type.
auto materialVol = createAndFillVolume< PagedVolume<MaterialDensityPair88> >();
auto materialMesh = extractMarchingCubesMesh(materialVol, materialVol->getEnclosingRegion());
QCOMPARE(materialMesh.getNoOfVertices(), uint32_t(12096)); // Verifies size of mesh and that we have 32-bit indices
QCOMPARE(materialMesh.getNoOfIndices(), uint32_t(35157)); // Verifies size of mesh
QCOMPARE(materialMesh.getIndex(100), uint32_t(44)); // Verifies that we have 32-bit indices
QCOMPARE(materialMesh.getVertex(100).data.getMaterial(), uint16_t(79)); // Verify the data attached to the vertex
}
void TestSurfaceExtractor::testEmptyVolumePerformance()
{
auto emptyVol = createAndFillVolumeWithNoise< PagedVolume<float> >(128, -2.0f, -1.0f);
Mesh< MarchingCubesVertex< float >, uint16_t > emptyMesh;
QBENCHMARK{ extractMarchingCubesMeshCustom(emptyVol, Region(32, 32, 32, 63, 63, 63), &emptyMesh); }
QCOMPARE(emptyMesh.getNoOfVertices(), uint16_t(0));
}
void TestSurfaceExtractor::testNoiseVolumePerformance()
{
auto noiseVol = createAndFillVolumeWithNoise< PagedVolume<float> >(128, -1.0f, 1.0f);
Mesh< MarchingCubesVertex< float >, uint16_t > noiseMesh;
QBENCHMARK{ extractMarchingCubesMeshCustom(noiseVol, Region(32, 32, 32, 63, 63, 63), &noiseMesh); }
QCOMPARE(noiseMesh.getNoOfVertices(), uint16_t(48967));
}
QTEST_MAIN(TestSurfaceExtractor)

384
tests/TestVolumeSubclass.cpp
View File

@ -1,194 +1,194 @@
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestVolumeSubclass.h"
#include "PolyVoxCore/Array.h"
#include "PolyVoxCore/BaseVolume.h"
#include "PolyVoxCore/CubicSurfaceExtractor.h"
#include "PolyVoxCore/Material.h"
#include "PolyVoxCore/Vector.h"
#include <QtTest>
using namespace PolyVox;
template <typename VoxelType>
class VolumeSubclass : public BaseVolume<VoxelType>
{
public:
//There seems to be some descrepency between Visual Studio and GCC about how the following class should be declared.
//There is a work around (see also See http://goo.gl/qu1wn) given below which appears to work on VS2010 and GCC, but
//which seems to cause internal compiler errors on VS2008 when building with the /Gm 'Enable Minimal Rebuild' compiler
//option. For now it seems best to 'fix' it with the preprocessor insstead, but maybe the workaround can be reinstated
//in the future
//typedef BaseVolume<VoxelType> VolumeOfVoxelType; //Workaround for GCC/VS2010 differences. See http://goo.gl/qu1wn
//class Sampler : public VolumeOfVoxelType::template Sampler< VolumeSubclass<VoxelType> >
#if defined(_MSC_VER)
class Sampler : public BaseVolume<VoxelType>::Sampler< VolumeSubclass<VoxelType> > //This line works on VS2010
#else
class Sampler : public BaseVolume<VoxelType>::template Sampler< VolumeSubclass<VoxelType> > //This line works on GCC
#endif
{
public:
Sampler(VolumeSubclass<VoxelType>* volume)
:BaseVolume<VoxelType>::template Sampler< VolumeSubclass<VoxelType> >(volume)
{
this->mVolume = volume;
}
//~Sampler();
};
/// Constructor for creating a fixed size volume.
VolumeSubclass(const Region& regValid)
:BaseVolume<VoxelType>(regValid)
, mVolumeData(this->getWidth(), this->getHeight(), this->getDepth())
{
//mVolumeData.resize(ArraySizes(this->getWidth())(this->getHeight())(this->getDepth()));
}
/// Destructor
~VolumeSubclass() {};
/// Gets a voxel at the position given by <tt>x,y,z</tt> coordinates
template <WrapMode eWrapMode>
VoxelType getVoxel(int32_t uXPos, int32_t uYPos, int32_t uZPos, VoxelType tBorder = VoxelType()) const
{
// FIXME: This templatised version is implemented in terms of the not template version. This is strange
// from a peformance point of view but it's just because we were encountering some compile issues on GCC.
return getVoxel(uXPos, uYPos, uZPos, eWrapMode, tBorder);
}
/// Gets a voxel at the position given by a 3D vector
template <WrapMode eWrapMode>
VoxelType getVoxel(const Vector3DInt32& v3dPos, VoxelType tBorder = VoxelType()) const
{
// Simply call through to the real implementation
return getVoxel<eWrapMode>(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), tBorder);
}
/// Gets a voxel at the position given by <tt>x,y,z</tt> coordinates
VoxelType getVoxel(int32_t uXPos, int32_t uYPos, int32_t uZPos, WrapMode eWrapMode = WrapModes::Validate, VoxelType tBorder = VoxelType()) const
{
switch(eWrapMode)
{
case WrapModes::Validate:
{
if(this->m_regValidRegion.containsPoint(Vector3DInt32(uXPos, uYPos, uZPos)) == false)
{
POLYVOX_THROW(std::out_of_range, "Position is outside valid region");
}
return mVolumeData(uXPos, uYPos, uZPos);
}
case WrapModes::Clamp:
{
//Perform clamping
uXPos = (std::max)(uXPos, this->m_regValidRegion.getLowerX());
uYPos = (std::max)(uYPos, this->m_regValidRegion.getLowerY());
uZPos = (std::max)(uZPos, this->m_regValidRegion.getLowerZ());
uXPos = (std::min)(uXPos, this->m_regValidRegion.getUpperX());
uYPos = (std::min)(uYPos, this->m_regValidRegion.getUpperY());
uZPos = (std::min)(uZPos, this->m_regValidRegion.getUpperZ());
return mVolumeData(uXPos, uYPos, uZPos);
}
case WrapModes::Border:
{
if(this->m_regValidRegion.containsPoint(uXPos, uYPos, uZPos))
{
return mVolumeData(uXPos, uYPos, uZPos);
}
else
{
return tBorder;
}
}
case WrapModes::AssumeValid:
{
return mVolumeData(uXPos, uYPos, uZPos);
}
default:
{
// Should never happen
POLYVOX_ASSERT(false, "Invalid wrap mode");
return VoxelType();
}
}
}
/// Gets a voxel at the position given by a 3D vector
VoxelType getVoxel(const Vector3DInt32& v3dPos, WrapMode eWrapMode = WrapModes::Validate, VoxelType tBorder = VoxelType()) const
{
return getVoxel(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), eWrapMode, tBorder);
}
/// Sets the value used for voxels which are outside the volume
void setBorderValue(const VoxelType& tBorder) { }
/// Sets the voxel at the position given by <tt>x,y,z</tt> coordinates
bool setVoxelAt(int32_t uXPos, int32_t uYPos, int32_t uZPos, VoxelType tValue)
{
if(this->m_regValidRegion.containsPoint(Vector3DInt32(uXPos, uYPos, uZPos)))
{
mVolumeData(uXPos, uYPos, uZPos) = tValue;
return true;
}
else
{
return false;
}
}
/// Sets the voxel at the position given by a 3D vector
bool setVoxelAt(const Vector3DInt32& v3dPos, VoxelType tValue) { return setVoxelAt(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), tValue); }
/// Calculates approximatly how many bytes of memory the volume is currently using.
uint32_t calculateSizeInBytes(void) { return 0; }
/// Deprecated - I don't think we should expose this function? Let us know if you disagree...
//void resize(const Region& regValidRegion);
private:
Array<3, VoxelType> mVolumeData;
};
void TestVolumeSubclass::testExtractSurface()
{
VolumeSubclass<Material8> volumeSubclass(Region(0,0,0,16,16,16));
for(int32_t z = 0; z < volumeSubclass.getDepth() / 2; z++)
{
for(int32_t y = 0; y < volumeSubclass.getHeight(); y++)
{
for(int32_t x = 0; x < volumeSubclass.getWidth(); x++)
{
Material8 mat(1);
volumeSubclass.setVoxelAt(Vector3DInt32(x,y,z),mat);
}
}
}
/*******************************************************************************
Copyright (c) 2010 Matt Williams
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*******************************************************************************/
#include "TestVolumeSubclass.h"
#include "PolyVoxCore/Array.h"
#include "PolyVoxCore/BaseVolume.h"
#include "PolyVoxCore/CubicSurfaceExtractor.h"
#include "PolyVoxCore/Material.h"
#include "PolyVoxCore/Vector.h"
#include <QtTest>
using namespace PolyVox;
template <typename VoxelType>
class VolumeSubclass : public BaseVolume<VoxelType>
{
public:
//There seems to be some descrepency between Visual Studio and GCC about how the following class should be declared.
//There is a work around (see also See http://goo.gl/qu1wn) given below which appears to work on VS2010 and GCC, but
//which seems to cause internal compiler errors on VS2008 when building with the /Gm 'Enable Minimal Rebuild' compiler
//option. For now it seems best to 'fix' it with the preprocessor insstead, but maybe the workaround can be reinstated
//in the future
//typedef BaseVolume<VoxelType> VolumeOfVoxelType; //Workaround for GCC/VS2010 differences. See http://goo.gl/qu1wn
//class Sampler : public VolumeOfVoxelType::template Sampler< VolumeSubclass<VoxelType> >
#if defined(_MSC_VER)
class Sampler : public BaseVolume<VoxelType>::Sampler< VolumeSubclass<VoxelType> > //This line works on VS2010
#else
class Sampler : public BaseVolume<VoxelType>::template Sampler< VolumeSubclass<VoxelType> > //This line works on GCC
#endif
{
public:
Sampler(VolumeSubclass<VoxelType>* volume)
:BaseVolume<VoxelType>::template Sampler< VolumeSubclass<VoxelType> >(volume)
{
this->mVolume = volume;
}
//~Sampler();
};
/// Constructor for creating a fixed size volume.
VolumeSubclass(const Region& regValid)
:BaseVolume<VoxelType>(regValid)
, mVolumeData(this->getWidth(), this->getHeight(), this->getDepth())
{
//mVolumeData.resize(ArraySizes(this->getWidth())(this->getHeight())(this->getDepth()));
}
/// Destructor
~VolumeSubclass() {};
/// Gets a voxel at the position given by <tt>x,y,z</tt> coordinates
template <WrapMode eWrapMode>
VoxelType getVoxel(int32_t uXPos, int32_t uYPos, int32_t uZPos, VoxelType tBorder = VoxelType()) const
{
// FIXME: This templatised version is implemented in terms of the not template version. This is strange
// from a peformance point of view but it's just because we were encountering some compile issues on GCC.
return getVoxel(uXPos, uYPos, uZPos, eWrapMode, tBorder);
}
/// Gets a voxel at the position given by a 3D vector
template <WrapMode eWrapMode>
VoxelType getVoxel(const Vector3DInt32& v3dPos, VoxelType tBorder = VoxelType()) const
{
// Simply call through to the real implementation
return getVoxel<eWrapMode>(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), tBorder);
}
/// Gets a voxel at the position given by <tt>x,y,z</tt> coordinates
VoxelType getVoxel(int32_t uXPos, int32_t uYPos, int32_t uZPos, WrapMode eWrapMode = WrapModes::Validate, VoxelType tBorder = VoxelType()) const
{
switch(eWrapMode)
{
case WrapModes::Validate:
{
if(this->m_regValidRegion.containsPoint(Vector3DInt32(uXPos, uYPos, uZPos)) == false)
{
POLYVOX_THROW(std::out_of_range, "Position is outside valid region");
}
return mVolumeData(uXPos, uYPos, uZPos);
}
case WrapModes::Clamp:
{
//Perform clamping
uXPos = (std::max)(uXPos, this->m_regValidRegion.getLowerX());
uYPos = (std::max)(uYPos, this->m_regValidRegion.getLowerY());
uZPos = (std::max)(uZPos, this->m_regValidRegion.getLowerZ());
uXPos = (std::min)(uXPos, this->m_regValidRegion.getUpperX());
uYPos = (std::min)(uYPos, this->m_regValidRegion.getUpperY());
uZPos = (std::min)(uZPos, this->m_regValidRegion.getUpperZ());
return mVolumeData(uXPos, uYPos, uZPos);
}
case WrapModes::Border:
{
if(this->m_regValidRegion.containsPoint(uXPos, uYPos, uZPos))
{
return mVolumeData(uXPos, uYPos, uZPos);
}
else
{
return tBorder;
}
}
case WrapModes::AssumeValid:
{
return mVolumeData(uXPos, uYPos, uZPos);
}
default:
{
// Should never happen
POLYVOX_ASSERT(false, "Invalid wrap mode");
return VoxelType();
}
}
}
/// Gets a voxel at the position given by a 3D vector
VoxelType getVoxel(const Vector3DInt32& v3dPos, WrapMode eWrapMode = WrapModes::Validate, VoxelType tBorder = VoxelType()) const
{
return getVoxel(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), eWrapMode, tBorder);
}
/// Sets the value used for voxels which are outside the volume
void setBorderValue(const VoxelType& tBorder) { }
/// Sets the voxel at the position given by <tt>x,y,z</tt> coordinates
bool setVoxelAt(int32_t uXPos, int32_t uYPos, int32_t uZPos, VoxelType tValue)
{
if(this->m_regValidRegion.containsPoint(Vector3DInt32(uXPos, uYPos, uZPos)))
{
mVolumeData(uXPos, uYPos, uZPos) = tValue;
return true;
}
else
{
return false;
}
}
/// Sets the voxel at the position given by a 3D vector
bool setVoxelAt(const Vector3DInt32& v3dPos, VoxelType tValue) { return setVoxelAt(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), tValue); }
/// Calculates approximatly how many bytes of memory the volume is currently using.
uint32_t calculateSizeInBytes(void) { return 0; }
/// Deprecated - I don't think we should expose this function? Let us know if you disagree...
//void resize(const Region& regValidRegion);
private:
Array<3, VoxelType> mVolumeData;
};
void TestVolumeSubclass::testExtractSurface()
{
VolumeSubclass<Material8> volumeSubclass(Region(0,0,0,16,16,16));
for(int32_t z = 0; z < volumeSubclass.getDepth() / 2; z++)
{
for(int32_t y = 0; y < volumeSubclass.getHeight(); y++)
{
for(int32_t x = 0; x < volumeSubclass.getWidth(); x++)
{
Material8 mat(1);
volumeSubclass.setVoxelAt(Vector3DInt32(x,y,z),mat);
}
}
}
auto result = extractCubicMesh(&volumeSubclass, volumeSubclass.getEnclosingRegion());
QCOMPARE(result.getNoOfVertices(), static_cast<uint32_t>(8));
}
QTEST_MAIN(TestVolumeSubclass)
QCOMPARE(result.getNoOfVertices(), static_cast<uint32_t>(8));
}
QTEST_MAIN(TestVolumeSubclass)