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Switched to using C++11 random number generator (MT) for tests, hoping it will be consistent across platforms.

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This commit is contained in:
David Williams
2015-02-10 21:46:09 +01:00
parent 41498cfcb8
commit feb9b6bdc6
2 changed files with 22 additions and 19 deletions
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11
tests/TestSurfaceExtractor.cpp
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@ -32,6 +32,8 @@ freely, subject to the following restrictions:
#include <QtTest>
#include <random>
using namespace PolyVox;
// Test our ability to modify the behaviour of the MarchingCubesSurfaceExtractor. This simple example only modifies
@ -143,8 +145,9 @@ VolumeType* createAndFillVolumeWithNoise(int32_t iVolumeSideLength, float minVal
//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);
// Set up a random number generator
std::mt19937 rng;
std::uniform_real_distribution<float> dist(minValue, maxValue);
// Fill
for (int32_t z = 0; z < iVolumeSideLength; z++)
@ -153,7 +156,7 @@ VolumeType* createAndFillVolumeWithNoise(int32_t iVolumeSideLength, float minVal
{
for (int32_t x = 0; x < iVolumeSideLength; x++)
{
float voxelValue = randomFloat(minValue, maxValue);
float voxelValue = dist(rng);
volData->setVoxelAt(x, y, z, voxelValue);
}
}
@ -230,7 +233,7 @@ 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));
QCOMPARE(noiseMesh.getNoOfVertices(), uint16_t(48704));
}
QTEST_MAIN(TestSurfaceExtractor)