| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // Copyright Contributors to the OpenVDB Project | ||
| 2 | // SPDX-License-Identifier: MPL-2.0 | ||
| 3 | |||
| 4 | #include <openvdb/openvdb.h> | ||
| 5 | |||
| 6 | #include <openvdb/tools/LevelSetSphere.h> | ||
| 7 | #include <openvdb/tools/Mask.h> | ||
| 8 | #include <openvdb/points/PointScatter.h> | ||
| 9 | #include <openvdb/points/PointConversion.h> | ||
| 10 | #include <openvdb/points/PointRasterizeFrustum.h> | ||
| 11 | |||
| 12 | // enable this flag to reduce compilation time by only unit testing float rasterization | ||
| 13 | // #define ONLY_RASTER_FLOAT | ||
| 14 | |||
| 15 | // enable this flag to perform some simple benchmarking using CpuTimer | ||
| 16 | // #define PROFILE | ||
| 17 | |||
| 18 | #ifdef PROFILE | ||
| 19 | #include <openvdb/util/CpuTimer.h> | ||
| 20 | #endif | ||
| 21 | |||
| 22 | #include "gtest/gtest.h" | ||
| 23 | |||
| 24 | using namespace openvdb; | ||
| 25 | using namespace openvdb::points; | ||
| 26 | |||
| 27 | 12 | class TestPointRasterizeFrustum: public ::testing::Test | |
| 28 | { | ||
| 29 | public: | ||
| 30 | 12 | void SetUp() override { openvdb::initialize(); } | |
| 31 | 12 | void TearDown() override { openvdb::uninitialize(); } | |
| 32 | }; // class TestPointRasterizeFrustum | ||
| 33 | |||
| 34 |
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2 | TEST_F(TestPointRasterizeFrustum, testScaleByVoxelVolume) |
| 35 | { | ||
| 36 | const double tolerance = 1.0e-6; | ||
| 37 | |||
| 38 | // four our of five positions live in (0,0,0) voxels | ||
| 39 | |||
| 40 | std::vector<Vec3s> positions = { | ||
| 41 | {0.0f, -0.2f, 0.0f}, | ||
| 42 | {0.0f, 0.0f, 0.0f}, | ||
| 43 | {0.12f, 0.12f, 0.12f}, | ||
| 44 | {100.5f, 98.6f, 103.0f}, /*not in (0,0,0)*/ | ||
| 45 | {-0.24f, 0.15f, 0.24f}, | ||
| 46 |
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1 | }; |
| 47 | |||
| 48 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 49 | |||
| 50 | // leaf containing (0,0,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 51 | |||
| 52 | const double voxelSize = 0.5; | ||
| 53 | math::Transform::Ptr transform( | ||
| 54 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 55 | 1 | const double voxelVolume = transform->voxelSize(Vec3d(0,0,0)).product(); | |
| 56 |
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1 | EXPECT_EQ(voxelVolume, (voxelSize * voxelSize * voxelSize)); |
| 57 | |||
| 58 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 59 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 60 | |||
| 61 | PointDataGrid::Ptr points = | ||
| 62 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 63 | auto& tree = points->tree(); | ||
| 64 | |||
| 65 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 66 | using Settings = FrustumRasterizerSettings; | ||
| 67 | using Mask = FrustumRasterizerMask; | ||
| 68 | |||
| 69 |
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2 | Settings settings(*transform); |
| 70 |
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1 | settings.velocityAttribute = "velocityAttr"; |
| 71 | 1 | settings.scaleByVoxelVolume = true; | |
| 72 | 1 | settings.threaded = false; | |
| 73 | 1 | settings.threshold = 1e-6f; | |
| 74 | |||
| 75 |
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2 | Rasterizer rasterizer(settings); |
| 76 | |||
| 77 | // add points to rasterizer | ||
| 78 | |||
| 79 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 80 | |||
| 81 | // accumulate density | ||
| 82 | |||
| 83 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 84 | |||
| 85 |
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1 | EXPECT_TRUE(density); |
| 86 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 87 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 88 | |||
| 89 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 90 | 1 | auto iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 91 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 92 |
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1 | EXPECT_EQ(/*value=*/4.0f / static_cast<float>(voxelVolume), *iter); |
| 93 | |||
| 94 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 95 |
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1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); |
| 96 |
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1 | EXPECT_EQ(/*value=*/4.0f / static_cast<float>(voxelVolume), *iter); |
| 97 | |||
| 98 | // accumulate scaled density | ||
| 99 | |||
| 100 | float scale = 13.9f; | ||
| 101 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE, false, scale); |
| 102 | |||
| 103 |
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1 | EXPECT_TRUE(density); |
| 104 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 105 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 106 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 107 |
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1 | EXPECT_EQ(/*value=*/(4.0f * scale) / static_cast<float>(voxelVolume), *iter); |
| 108 | |||
| 109 | // average density | ||
| 110 | |||
| 111 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::AVERAGE); |
| 112 | |||
| 113 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 114 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 115 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 116 |
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1 | EXPECT_EQ(/*value=*/8.0f, *iter); |
| 117 | |||
| 118 | // maximum density | ||
| 119 | |||
| 120 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::MAXIMUM); |
| 121 | |||
| 122 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 123 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 124 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 125 |
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1 | EXPECT_EQ(/*value=*/1.0f / static_cast<float>(voxelVolume), *iter); |
| 126 | |||
| 127 | // add density attribute | ||
| 128 | |||
| 129 |
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1 | appendAttribute<float>(tree, "densityAttr"); |
| 130 | |||
| 131 |
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1 | std::vector<float> densities{2.0f, 3.1f, 8.9f, 6.7f, 4.2f}; |
| 132 | PointAttributeVector<float> densityWrapper(densities); | ||
| 133 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "densityAttr", densityWrapper); |
| 134 | |||
| 135 | // accumulate density | ||
| 136 | |||
| 137 | 1 | float sum = densities[0] + densities[1] + densities[2] + densities[4]; | |
| 138 | |||
| 139 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 140 | |||
| 141 |
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1 | EXPECT_TRUE(density); |
| 142 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 143 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 144 | |||
| 145 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 146 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 147 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 148 |
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1 | EXPECT_EQ(/*value=*/sum / static_cast<float>(voxelVolume), *iter); |
| 149 | |||
| 150 | // accumulate scaled density | ||
| 151 | |||
| 152 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE, false, scale); |
| 153 |
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1 | EXPECT_TRUE(density); |
| 154 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 155 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 156 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 157 | 1 | float scaledSum = scale * densities[0] + scale * densities[1] + | |
| 158 |
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1 | scale * densities[2] + scale * densities[4]; |
| 159 |
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1 | EXPECT_NEAR(scaledSum / static_cast<float>(voxelVolume), *iter, tolerance); |
| 160 | |||
| 161 | // add temperature attribute (an arbitrary float attribute) | ||
| 162 | |||
| 163 |
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1 | appendAttribute<float>(tree, "temperatureAttr"); |
| 164 | |||
| 165 |
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1 | std::vector<float> temperatures{4.2f, 6.7f, 8.9f, 3.1f, 2.0f}; |
| 166 | PointAttributeVector<float> temperatureWrapper(temperatures); | ||
| 167 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "temperatureAttr", temperatureWrapper); |
| 168 | |||
| 169 | // accumulate temperature | ||
| 170 | |||
| 171 | 1 | sum = temperatures[0] + temperatures[1] + temperatures[2] + temperatures[4]; | |
| 172 | |||
| 173 |
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2 | auto temperatureBase = rasterizer.rasterizeAttribute("temperatureAttr", RasterMode::ACCUMULATE); |
| 174 |
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1 | EXPECT_TRUE(temperatureBase); |
| 175 |
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1 | auto temperature = GridBase::grid<FloatGrid>(temperatureBase); |
| 176 |
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1 | EXPECT_TRUE(temperature); |
| 177 |
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2 | EXPECT_EQ(openvdb::Name("temperatureAttr"), temperature->getName()); |
| 178 |
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1 | EXPECT_EQ(temperature->transform(), *transform); |
| 179 | |||
| 180 |
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1 | EXPECT_EQ(Index64(2), temperature->tree().activeVoxelCount()); |
| 181 | 1 | iter = temperature->tree().cbeginLeaf()->cbeginValueOn(); | |
| 182 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 183 |
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1 | EXPECT_EQ(/*value=*/sum / static_cast<float>(voxelVolume), *iter); |
| 184 | |||
| 185 | #ifndef ONLY_RASTER_FLOAT | ||
| 186 | // add velocity attribute (an arbitrary vec3s attribute) | ||
| 187 | |||
| 188 |
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2 | appendAttribute<Vec3s>(tree, "velocityAttr"); |
| 189 | |||
| 190 | std::vector<Vec3s> velocities = { | ||
| 191 | {0.0f, 10.0f, 0.0f}, | ||
| 192 | {1.0f, 2.0f, 3.0f}, | ||
| 193 | {-3.0f, -2.0f, -1.0f}, | ||
| 194 | {4.0f, 5.0f, 6.0f}, | ||
| 195 | {4.2f, 6.7f, 8.9f}, | ||
| 196 |
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1 | }; |
| 197 | PointAttributeVector<Vec3s> velocityWrapper(velocities); | ||
| 198 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "velocityAttr", velocityWrapper); |
| 199 | |||
| 200 | // accumulate velocity | ||
| 201 | |||
| 202 | auto sumV = velocities[0] + velocities[1] + velocities[2] + velocities[4]; | ||
| 203 | |||
| 204 |
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2 | auto velocityBase = rasterizer.rasterizeAttribute("velocityAttr", RasterMode::ACCUMULATE); |
| 205 |
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1 | EXPECT_TRUE(velocityBase); |
| 206 |
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1 | auto velocity = GridBase::grid<Vec3fGrid>(velocityBase); |
| 207 |
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2 | EXPECT_EQ(openvdb::Name("velocityAttr"), velocity->getName()); |
| 208 |
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1 | EXPECT_EQ(velocity->transform(), *transform); |
| 209 | |||
| 210 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 211 | 1 | auto iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 212 |
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2 | EXPECT_EQ(Coord(0,0,0), iterV.getCoord()); |
| 213 |
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1 | EXPECT_EQ(/*value=*/sumV / static_cast<float>(voxelVolume), *iterV); |
| 214 | |||
| 215 | // accumulate scaled velocity | ||
| 216 | |||
| 217 |
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2 | velocityBase = rasterizer.rasterizeAttribute("velocityAttr", RasterMode::ACCUMULATE, false, scale); |
| 218 |
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1 | EXPECT_TRUE(velocityBase); |
| 219 |
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2 | velocity = GridBase::grid<Vec3fGrid>(velocityBase); |
| 220 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 221 | 1 | iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 222 |
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2 | EXPECT_EQ(Coord(0,0,0), iterV.getCoord()); |
| 223 | auto scaledSumV = (scale * velocities[0] + scale * velocities[1] + | ||
| 224 |
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1 | scale * velocities[2] + scale * velocities[4]) / voxelVolume; |
| 225 |
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1 | EXPECT_NEAR(scaledSumV[0], (*iterV)[0], tolerance); |
| 226 |
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1 | EXPECT_NEAR(scaledSumV[1], (*iterV)[1], tolerance); |
| 227 |
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1 | EXPECT_NEAR(scaledSumV[2], (*iterV)[2], tolerance); |
| 228 | #endif | ||
| 229 | |||
| 230 | //////////////////////////// | ||
| 231 | |||
| 232 | // manually build frustum transform using camera API | ||
| 233 | |||
| 234 | math::NonlinearFrustumMap frustumMap( | ||
| 235 | ✗ | /*position*/Vec3d(0, 0, -10), /*direction*/Vec3d(0, 0, 1), /*up*/Vec3d(0, 1, 0), | |
| 236 |
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1 | /*aspect*/1.5, /*znear*/0.05, /*depth*/20, /*xcount*/50, /*zcount*/50); |
| 237 | |||
| 238 |
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3 | math::Transform::Ptr frustum = math::Transform(frustumMap.copy()).copy(); |
| 239 | |||
| 240 |
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1 | Mask mask(*frustum, nullptr, BBoxd(), false); |
| 241 | |||
| 242 |
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1 | settings.transform = frustum->copy(); |
| 243 | |||
| 244 |
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2 | Rasterizer frustumRasterizer(settings, mask); |
| 245 |
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1 | frustumRasterizer.addPoints(points, /*stream=*/false); |
| 246 | |||
| 247 | // accumulate density into frustum grid | ||
| 248 | |||
| 249 | // point 0 is rasterized into (25, 16, 25) | ||
| 250 | // points 1, 2, 4 are all rasterized into (25, 17, 25) | ||
| 251 | // point 3 is rasterized into (26, 17, 282) | ||
| 252 | |||
| 253 |
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2 | density = frustumRasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 254 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 255 | |||
| 256 |
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1 | EXPECT_TRUE(density); |
| 257 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 258 |
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1 | EXPECT_EQ(density->transform(), *frustum); |
| 259 | |||
| 260 |
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1 | EXPECT_EQ(Index64(3), density->activeVoxelCount()); |
| 261 | |||
| 262 | { // point 0 | ||
| 263 | Coord xyz(25, 16, 25); | ||
| 264 |
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1 | const float sum = densities[0]; |
| 265 |
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1 | const float voxelVolume = static_cast<float>(frustum->voxelSize(xyz.asVec3d()).product()); |
| 266 |
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1 | EXPECT_NEAR(sum / voxelVolume, density->tree().getValue(xyz), 1e-6); |
| 267 | } | ||
| 268 | |||
| 269 | { // point 1, 2, 4 | ||
| 270 | Coord xyz(25, 17, 25); | ||
| 271 |
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1 | const float sum = densities[1] + densities[2] + densities[4]; |
| 272 |
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1 | const float voxelVolume = static_cast<float>(frustum->voxelSize(xyz.asVec3d()).product()); |
| 273 |
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1 | EXPECT_NEAR(sum / voxelVolume, density->tree().getValue(xyz), 1e-6); |
| 274 | } | ||
| 275 | |||
| 276 | { // point 3 | ||
| 277 | Coord xyz(26, 17, 282); | ||
| 278 |
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1 | const float sum = densities[3]; |
| 279 |
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1 | const float voxelVolume = static_cast<float>(frustum->voxelSize(xyz.asVec3d()).product()); |
| 280 |
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1 | EXPECT_NEAR(sum / voxelVolume, density->tree().getValue(xyz), 1e-6); |
| 281 | } | ||
| 282 | |||
| 283 | // use a clipped frustum grid (point 3 is clipped) | ||
| 284 | |||
| 285 |
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1 | Mask clippedMask(*frustum); |
| 286 | |||
| 287 |
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2 | Rasterizer clippedFrustumRasterizer(settings, clippedMask); |
| 288 |
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1 | clippedFrustumRasterizer.addPoints(points, /*stream=*/false); |
| 289 | |||
| 290 |
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2 | auto clippedDensity = clippedFrustumRasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 291 | |||
| 292 |
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1 | EXPECT_EQ(Index64(2), clippedDensity->tree().activeVoxelCount()); |
| 293 | |||
| 294 | { // point 0 | ||
| 295 | Coord xyz(25, 16, 25); | ||
| 296 |
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1 | EXPECT_NEAR(density->tree().getValue(xyz), |
| 297 | clippedDensity->tree().getValue(xyz), 1e-6); | ||
| 298 | } | ||
| 299 | |||
| 300 | { // point 1, 2, 4 | ||
| 301 | Coord xyz(25, 17, 25); | ||
| 302 |
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1 | EXPECT_NEAR(density->tree().getValue(xyz), |
| 303 | clippedDensity->tree().getValue(xyz), 1e-6); | ||
| 304 | } | ||
| 305 | |||
| 306 | { // point 3 (outside of frustum) | ||
| 307 | Coord xyz(26, 17, 282); | ||
| 308 |
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1 | EXPECT_NEAR(0.0, clippedDensity->tree().getValue(xyz), 1e-6); |
| 309 | } | ||
| 310 | 1 | } | |
| 311 | |||
| 312 | |||
| 313 |
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2 | TEST_F(TestPointRasterizeFrustum, testPointRasterization) |
| 314 | { | ||
| 315 | const double tolerance = 1.0e-5; | ||
| 316 | |||
| 317 | // four our of five positions live in (0,0,0) voxels | ||
| 318 | |||
| 319 | std::vector<Vec3s> positions = { | ||
| 320 | {0.0f, -0.2f, 0.0f}, | ||
| 321 | {0.0f, 0.0f, 0.0f}, | ||
| 322 | {0.12f, 0.12f, 0.12f}, | ||
| 323 | {100.5f, 98.6f, 103.0f}, /*not in (0,0,0)*/ | ||
| 324 | {-0.24f, 0.15f, 0.24f}, | ||
| 325 |
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1 | }; |
| 326 | |||
| 327 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 328 | |||
| 329 | // leaf containing (0,0,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 330 | |||
| 331 | const double voxelSize = 0.5; | ||
| 332 | math::Transform::Ptr transform( | ||
| 333 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 334 | |||
| 335 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 336 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 337 | |||
| 338 | PointDataGrid::Ptr points = | ||
| 339 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 340 | auto& tree = points->tree(); | ||
| 341 | |||
| 342 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 343 | using Settings = FrustumRasterizerSettings; | ||
| 344 | using Mask = FrustumRasterizerMask; | ||
| 345 | |||
| 346 |
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2 | Settings settings(*transform); |
| 347 |
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1 | settings.velocityAttribute = "velocityAttr"; |
| 348 | 1 | settings.velocityMotionBlur = false; | |
| 349 | |||
| 350 |
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2 | Rasterizer rasterizer(settings); |
| 351 | |||
| 352 | // add points to rasterizer | ||
| 353 | |||
| 354 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 355 | |||
| 356 | // accumulate density | ||
| 357 | |||
| 358 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 359 | |||
| 360 |
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1 | EXPECT_TRUE(density); |
| 361 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 362 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 363 | |||
| 364 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 365 | 1 | auto iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 366 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 367 |
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1 | EXPECT_EQ(/*value=*/4.0f, *iter); |
| 368 | |||
| 369 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 370 |
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1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); |
| 371 |
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1 | EXPECT_EQ(/*value=*/4.0f, *iter); |
| 372 | |||
| 373 | // accumulate scaled density | ||
| 374 | |||
| 375 | float scale = 13.9f; | ||
| 376 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE, false, scale); |
| 377 | |||
| 378 |
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1 | EXPECT_TRUE(density); |
| 379 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 380 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 381 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 382 |
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1 | EXPECT_EQ(/*value=*/(4.0f * scale), *iter); |
| 383 | |||
| 384 | // average density | ||
| 385 | |||
| 386 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::AVERAGE); |
| 387 | |||
| 388 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 389 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 390 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 391 |
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1 | EXPECT_EQ(/*value=*/1.0f, *iter); |
| 392 | |||
| 393 | // maximum density | ||
| 394 | |||
| 395 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::MAXIMUM); |
| 396 | |||
| 397 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 398 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 399 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 400 |
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1 | EXPECT_EQ(/*value=*/1.0f, *iter); |
| 401 | |||
| 402 | // add density attribute | ||
| 403 | |||
| 404 |
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1 | appendAttribute<float>(tree, "densityAttr"); |
| 405 | |||
| 406 |
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1 | std::vector<float> densities{2.0f, 3.1f, 8.9f, 6.7f, 4.2f}; |
| 407 | PointAttributeVector<float> densityWrapper(densities); | ||
| 408 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "densityAttr", densityWrapper); |
| 409 | |||
| 410 | // accumulate density | ||
| 411 | |||
| 412 | 1 | float sum = densities[0] + densities[1] + densities[2] + densities[4]; | |
| 413 | |||
| 414 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 415 | |||
| 416 |
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1 | EXPECT_TRUE(density); |
| 417 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 418 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 419 | |||
| 420 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 421 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 422 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 423 |
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1 | EXPECT_EQ(/*value=*/sum, *iter); |
| 424 | |||
| 425 | // accumulate scaled density | ||
| 426 | |||
| 427 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE, false, scale); |
| 428 |
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1 | EXPECT_TRUE(density); |
| 429 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 430 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 431 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 432 | 1 | float scaledSum = scale * densities[0] + scale * densities[1] + | |
| 433 |
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1 | scale * densities[2] + scale * densities[4]; |
| 434 |
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1 | EXPECT_NEAR(scaledSum, *iter, tolerance); |
| 435 | |||
| 436 | // average density | ||
| 437 | |||
| 438 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::AVERAGE); |
| 439 | |||
| 440 |
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1 | EXPECT_TRUE(density); |
| 441 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 442 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 443 | |||
| 444 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 445 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 446 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 447 |
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1 | EXPECT_EQ(/*value=*/sum / /*weight=*/4, *iter); |
| 448 | |||
| 449 | // maximum density | ||
| 450 | |||
| 451 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::MAXIMUM); |
| 452 | |||
| 453 |
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1 | EXPECT_TRUE(density); |
| 454 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 455 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 456 | |||
| 457 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 458 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 459 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 460 |
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1 | EXPECT_EQ(/*value=*/(densities[2]), *iter); |
| 461 | |||
| 462 | // add temperature attribute (an arbitrary float attribute) | ||
| 463 | |||
| 464 |
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1 | appendAttribute<float>(tree, "temperatureAttr"); |
| 465 | |||
| 466 |
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1 | std::vector<float> temperatures{4.2f, 6.7f, 8.9f, 3.1f, 2.0f}; |
| 467 | PointAttributeVector<float> temperatureWrapper(temperatures); | ||
| 468 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "temperatureAttr", temperatureWrapper); |
| 469 | |||
| 470 | // accumulate temperature | ||
| 471 | |||
| 472 | 1 | sum = temperatures[0] + temperatures[1] + temperatures[2] + temperatures[4]; | |
| 473 | |||
| 474 |
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2 | auto temperatureBase = rasterizer.rasterizeAttribute("temperatureAttr", RasterMode::ACCUMULATE); |
| 475 |
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1 | EXPECT_TRUE(temperatureBase); |
| 476 |
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1 | auto temperature = GridBase::grid<FloatGrid>(temperatureBase); |
| 477 |
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1 | EXPECT_TRUE(temperature); |
| 478 |
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2 | EXPECT_EQ(openvdb::Name("temperatureAttr"), temperature->getName()); |
| 479 |
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1 | EXPECT_EQ(temperature->transform(), *transform); |
| 480 | |||
| 481 |
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1 | EXPECT_EQ(Index64(2), temperature->tree().activeVoxelCount()); |
| 482 | 1 | iter = temperature->tree().cbeginLeaf()->cbeginValueOn(); | |
| 483 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 484 |
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1 | EXPECT_EQ(/*value=*/sum, *iter); |
| 485 | |||
| 486 | // explicitly specify types in rasterization | ||
| 487 | |||
| 488 |
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2 | auto temperatureF = rasterizer.rasterizeAttribute<FloatGrid, float>("temperatureAttr", RasterMode::ACCUMULATE); |
| 489 |
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1 | EXPECT_TRUE(temperatureF); |
| 490 | |||
| 491 |
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1 | EXPECT_EQ(Index64(2), temperatureF->tree().activeVoxelCount()); |
| 492 | 1 | iter = temperatureF->tree().cbeginLeaf()->cbeginValueOn(); | |
| 493 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 494 |
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1 | EXPECT_EQ(/*value=*/sum, *iter); |
| 495 | |||
| 496 | // rasterize float attribute into double grid | ||
| 497 | |||
| 498 |
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2 | auto temperatureD = rasterizer.rasterizeAttribute<DoubleGrid, float>("temperatureAttr", RasterMode::ACCUMULATE); |
| 499 |
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1 | EXPECT_TRUE(temperatureD); |
| 500 | |||
| 501 |
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1 | EXPECT_EQ(Index64(2), temperatureD->tree().activeVoxelCount()); |
| 502 | 1 | auto iterD = temperatureD->tree().cbeginLeaf()->cbeginValueOn(); | |
| 503 |
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2 | EXPECT_EQ(Coord(0,0,0), iterD.getCoord()); |
| 504 |
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1 | EXPECT_EQ(/*value=*/double(sum), *iterD); |
| 505 | |||
| 506 | // rasterize float attribute into bool grid | ||
| 507 | |||
| 508 |
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2 | auto boolGrid = rasterizer.rasterizeAttribute<BoolGrid, float>("temperatureAttr", RasterMode::ACCUMULATE); |
| 509 |
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1 | EXPECT_TRUE(boolGrid); |
| 510 | |||
| 511 |
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1 | EXPECT_EQ(Index64(2), boolGrid->tree().activeVoxelCount()); |
| 512 |
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1 | EXPECT_TRUE(boolGrid->tree().getValue(Coord(0,0,0))); |
| 513 |
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1 | EXPECT_TRUE(boolGrid->tree().isValueOn(Coord(0,0,0))); |
| 514 | |||
| 515 | // average temperature | ||
| 516 | |||
| 517 |
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2 | temperatureBase = rasterizer.rasterizeAttribute("temperatureAttr", RasterMode::AVERAGE); |
| 518 |
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1 | EXPECT_TRUE(temperatureBase); |
| 519 |
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2 | temperature = GridBase::grid<FloatGrid>(temperatureBase); |
| 520 |
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1 | EXPECT_TRUE(temperature); |
| 521 |
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2 | EXPECT_EQ(openvdb::Name("temperatureAttr"), temperature->getName()); |
| 522 |
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1 | EXPECT_EQ(temperature->transform(), *transform); |
| 523 | |||
| 524 |
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1 | EXPECT_EQ(Index64(2), temperature->tree().activeVoxelCount()); |
| 525 | 1 | iter = temperature->tree().cbeginLeaf()->cbeginValueOn(); | |
| 526 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 527 |
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1 | EXPECT_EQ(/*value=*/sum / /*weight=*/4, *iter); |
| 528 | |||
| 529 | // maximum temperature | ||
| 530 | |||
| 531 |
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2 | temperatureBase = rasterizer.rasterizeAttribute("temperatureAttr", RasterMode::MAXIMUM); |
| 532 |
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1 | EXPECT_TRUE(temperatureBase); |
| 533 |
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2 | temperature = GridBase::grid<FloatGrid>(temperatureBase); |
| 534 |
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1 | EXPECT_TRUE(temperature); |
| 535 |
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2 | EXPECT_EQ(openvdb::Name("temperatureAttr"), temperature->getName()); |
| 536 |
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1 | EXPECT_EQ(temperature->transform(), *transform); |
| 537 | |||
| 538 |
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1 | EXPECT_EQ(Index64(2), temperature->tree().activeVoxelCount()); |
| 539 | 1 | iter = temperature->tree().cbeginLeaf()->cbeginValueOn(); | |
| 540 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 541 |
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1 | EXPECT_EQ(/*value=*/(temperatures[2]), *iter); |
| 542 | |||
| 543 | #ifndef ONLY_RASTER_FLOAT | ||
| 544 | // add arbitrary float[3] attribute and verify it rasterizes all components | ||
| 545 | // into a vec3s grid | ||
| 546 | |||
| 547 |
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1 | appendAttribute<float>(tree, "stridedAttr", /*uniformValue=*/0.0f, /*stride=*/3); |
| 548 | |||
| 549 | std::vector<float> stridedValues = { | ||
| 550 | 1.0f, 2.0f, 3.0f, | ||
| 551 | 1.0f, 2.0f, 3.0f, | ||
| 552 | 1.0f, 2.0f, 3.0f, | ||
| 553 | 1.0f, 2.0f, 3.0f, | ||
| 554 | 1.0f, 2.0f, 3.0f | ||
| 555 |
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1 | }; |
| 556 | PointAttributeVector<float> stridedWrapper(stridedValues, /*stride=*/3); | ||
| 557 |
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1 | populateAttribute(tree, pointIndexGrid->tree(), "stridedAttr", stridedWrapper, /*stride=*/3); |
| 558 | |||
| 559 |
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2 | auto stridedBase = rasterizer.rasterizeAttribute("stridedAttr", RasterMode::ACCUMULATE); |
| 560 |
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1 | EXPECT_TRUE(stridedBase); |
| 561 |
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1 | auto strided = GridBase::grid<Vec3fGrid>(stridedBase); |
| 562 |
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1 | EXPECT_TRUE(strided); |
| 563 |
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1 | auto iterS = strided->tree().cbeginLeaf()->cbeginValueOn(); |
| 564 |
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1 | EXPECT_EQ(Vec3s(4.0f, 8.0f, 12.0f), *iterS); |
| 565 | |||
| 566 | // add velocity attribute (an arbitrary vec3s attribute) | ||
| 567 | |||
| 568 |
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2 | appendAttribute<Vec3s>(tree, "velocityAttr"); |
| 569 | |||
| 570 | std::vector<Vec3s> velocities = { | ||
| 571 | {0.0f, 10.0f, 0.0f}, | ||
| 572 | {1.0f, 2.0f, 3.0f}, | ||
| 573 | {-3.0f, -2.0f, -1.0f}, | ||
| 574 | {4.0f, 5.0f, 6.0f}, | ||
| 575 | {4.2f, 6.7f, 8.9f}, | ||
| 576 |
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1 | }; |
| 577 | PointAttributeVector<Vec3s> velocityWrapper(velocities); | ||
| 578 |
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2 | populateAttribute(tree, pointIndexGrid->tree(), "velocityAttr", velocityWrapper); |
| 579 | |||
| 580 | // accumulate velocity | ||
| 581 | |||
| 582 | 1 | auto sumV = velocities[0] + velocities[1] + velocities[2] + velocities[4]; | |
| 583 | |||
| 584 |
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2 | auto velocityBase = rasterizer.rasterizeAttribute("velocityAttr", RasterMode::ACCUMULATE); |
| 585 |
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1 | EXPECT_TRUE(velocityBase); |
| 586 |
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1 | auto velocity = GridBase::grid<Vec3fGrid>(velocityBase); |
| 587 |
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2 | EXPECT_EQ(openvdb::Name("velocityAttr"), velocity->getName()); |
| 588 |
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1 | EXPECT_EQ(velocity->transform(), *transform); |
| 589 | |||
| 590 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 591 | 1 | auto iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 592 |
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2 | EXPECT_EQ(Coord(0,0,0), iterV.getCoord()); |
| 593 |
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1 | EXPECT_EQ(/*value=*/sumV, *iterV); |
| 594 | |||
| 595 | // accumulate scaled velocity | ||
| 596 | |||
| 597 |
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2 | velocityBase = rasterizer.rasterizeAttribute("velocityAttr", RasterMode::ACCUMULATE, false, scale); |
| 598 |
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1 | EXPECT_TRUE(velocityBase); |
| 599 |
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2 | velocity = GridBase::grid<Vec3fGrid>(velocityBase); |
| 600 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 601 | 1 | iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 602 |
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2 | EXPECT_EQ(Coord(0,0,0), iterV.getCoord()); |
| 603 | auto scaledSumV = (scale * velocities[0] + scale * velocities[1] + | ||
| 604 | scale * velocities[2] + scale * velocities[4]); | ||
| 605 |
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1 | EXPECT_NEAR(scaledSumV[0], (*iterV)[0], tolerance); |
| 606 |
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1 | EXPECT_NEAR(scaledSumV[1], (*iterV)[1], tolerance); |
| 607 |
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1 | EXPECT_NEAR(scaledSumV[2], (*iterV)[2], tolerance); |
| 608 | |||
| 609 | // explicitly specify Vec3f grid | ||
| 610 | |||
| 611 |
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2 | velocity = rasterizer.rasterizeAttribute<Vec3fGrid, Vec3f>("velocityAttr", RasterMode::ACCUMULATE); |
| 612 |
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1 | EXPECT_TRUE(velocity); |
| 613 | |||
| 614 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 615 | 1 | iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 616 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 617 |
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1 | EXPECT_NEAR((sumV)[0], (*iterV)[0], tolerance); |
| 618 |
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1 | EXPECT_NEAR((sumV)[1], (*iterV)[1], tolerance); |
| 619 |
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1 | EXPECT_NEAR((sumV)[2], (*iterV)[2], tolerance); |
| 620 | |||
| 621 | // explicitly specify Vec3f grid and scale | ||
| 622 | |||
| 623 |
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2 | velocity = rasterizer.rasterizeAttribute<Vec3fGrid, Vec3f>("velocityAttr", RasterMode::ACCUMULATE, false, scale); |
| 624 |
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1 | EXPECT_TRUE(velocity); |
| 625 | |||
| 626 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 627 | 1 | iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 628 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 629 |
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1 | EXPECT_NEAR(scaledSumV[0], (*iterV)[0], tolerance); |
| 630 |
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1 | EXPECT_NEAR(scaledSumV[1], (*iterV)[1], tolerance); |
| 631 |
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1 | EXPECT_NEAR(scaledSumV[2], (*iterV)[2], tolerance); |
| 632 | |||
| 633 | // rasterize float attribute into double grid | ||
| 634 | |||
| 635 |
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2 | auto velocityD = rasterizer.rasterizeAttribute<Vec3dGrid, Vec3f>("velocityAttr", RasterMode::ACCUMULATE, false, scale); |
| 636 |
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1 | EXPECT_TRUE(velocityD); |
| 637 | |||
| 638 |
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1 | EXPECT_EQ(Index64(2), velocityD->tree().activeVoxelCount()); |
| 639 | 1 | auto iterVD = velocityD->tree().cbeginLeaf()->cbeginValueOn(); | |
| 640 |
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2 | EXPECT_EQ(Coord(0,0,0), iterVD.getCoord()); |
| 641 | // note that the order of operations and the precision being used for each one is important | ||
| 642 | // to result in the exact same value within a tolerance of 1e-6 | ||
| 643 | auto scaledSumVD = Vec3d(scale * velocities[0]) + Vec3d(scale * velocities[1]) + | ||
| 644 | Vec3d(scale * velocities[2]) + Vec3d(scale * velocities[4]); | ||
| 645 |
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1 | EXPECT_NEAR(scaledSumVD[0], (*iterVD)[0], tolerance); |
| 646 |
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1 | EXPECT_NEAR(scaledSumVD[1], (*iterVD)[1], tolerance); |
| 647 |
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1 | EXPECT_NEAR(scaledSumVD[2], (*iterVD)[2], tolerance); |
| 648 | |||
| 649 | // average velocity | ||
| 650 | |||
| 651 |
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2 | velocityBase = rasterizer.rasterizeAttribute("velocityAttr", RasterMode::AVERAGE); |
| 652 |
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1 | EXPECT_TRUE(velocityBase); |
| 653 |
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2 | velocity = GridBase::grid<Vec3fGrid>(velocityBase); |
| 654 |
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1 | EXPECT_TRUE(velocity); |
| 655 |
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2 | EXPECT_EQ(openvdb::Name("velocityAttr"), velocity->getName()); |
| 656 |
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1 | EXPECT_EQ(velocity->transform(), *transform); |
| 657 | |||
| 658 |
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1 | EXPECT_EQ(Index64(2), velocity->tree().activeVoxelCount()); |
| 659 | 1 | iterV = velocity->tree().cbeginLeaf()->cbeginValueOn(); | |
| 660 |
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2 | EXPECT_EQ(Coord(0,0,0), iterV.getCoord()); |
| 661 | // note that the order of operations and the precision being used for each one is important | ||
| 662 | // to result in the exact same value within a tolerance of 1e-6 | ||
| 663 | auto sumVD = velocities[0] + velocities[1] + velocities[2] + velocities[4]; | ||
| 664 |
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1 | EXPECT_EQ(/*value=*/(sumVD / 4.0f), *iterV); |
| 665 | |||
| 666 | // maximum velocity (not supported for vector attributes) | ||
| 667 | |||
| 668 |
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2 | EXPECT_THROW(rasterizer.rasterizeAttribute("velocityAttr", RasterMode::MAXIMUM), |
| 669 | ValueError); | ||
| 670 | #endif | ||
| 671 | |||
| 672 | //////////////////////////// | ||
| 673 | |||
| 674 | // point filtering (select one point only) | ||
| 675 | |||
| 676 |
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1 | appendGroup(tree, "test"); |
| 677 | |||
| 678 |
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1 | std::vector<short> membership{0, 1, 0, 0, 0}; |
| 679 | |||
| 680 |
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1 | setGroup(tree, pointIndexGrid->tree(), membership, "test"); |
| 681 | |||
| 682 |
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3 | std::vector<Name> includeGroups{"test"}; |
| 683 | 1 | std::vector<Name> excludeGroups; | |
| 684 |
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2 | MultiGroupFilter filter(includeGroups, excludeGroups, tree.cbeginLeaf()->attributeSet()); |
| 685 | |||
| 686 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE, false, 1.0f, filter); |
| 687 | |||
| 688 |
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1 | EXPECT_TRUE(density); |
| 689 |
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1 | EXPECT_EQ(Index64(1), density->activeVoxelCount()); |
| 690 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 691 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 692 |
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1 | EXPECT_EQ(densities[1], *iter); |
| 693 | |||
| 694 | // use RasterGroups object that is resolved per-grid | ||
| 695 | |||
| 696 | RasterGroups rasterGroups; | ||
| 697 |
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1 | rasterGroups.includeNames.push_back("test"); |
| 698 | |||
| 699 |
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2 | density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE, false, 1.0f, rasterGroups); |
| 700 | |||
| 701 |
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1 | EXPECT_TRUE(density); |
| 702 |
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1 | EXPECT_EQ(Index64(1), density->activeVoxelCount()); |
| 703 | 1 | iter = density->tree().cbeginLeaf()->cbeginValueOn(); | |
| 704 |
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2 | EXPECT_EQ(Coord(0,0,0), iter.getCoord()); |
| 705 |
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1 | EXPECT_EQ(densities[1], *iter); |
| 706 | |||
| 707 | //////////////////////////// | ||
| 708 | |||
| 709 | // manually build frustum transform using camera API | ||
| 710 | |||
| 711 | math::NonlinearFrustumMap frustumMap( | ||
| 712 | ✗ | /*position*/Vec3d(0, 0, -10), /*direction*/Vec3d(0, 0, 1), /*up*/Vec3d(0, 1, 0), | |
| 713 |
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1 | /*aspect*/1.5, /*znear*/0.05, /*depth*/20, /*xcount*/50, /*zcount*/50); |
| 714 | |||
| 715 |
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3 | math::Transform::Ptr frustum = math::Transform(frustumMap.copy()).copy(); |
| 716 | |||
| 717 |
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1 | Mask mask(*frustum, nullptr, BBoxd(), false); |
| 718 | |||
| 719 |
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1 | settings.transform = frustum->copy(); |
| 720 | |||
| 721 |
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2 | Rasterizer frustumRasterizer(settings, mask); |
| 722 |
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1 | frustumRasterizer.addPoints(points, /*stream=*/false); |
| 723 | |||
| 724 | // accumulate density into frustum grid | ||
| 725 | |||
| 726 | // point 0 is rasterized into (25, 16, 25) | ||
| 727 | // points 1, 2, 4 are all rasterized into (25, 17, 25) | ||
| 728 | // point 3 is rasterized into (26, 17, 282) | ||
| 729 | |||
| 730 |
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2 | density = frustumRasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 731 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 732 | |||
| 733 |
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1 | EXPECT_TRUE(density); |
| 734 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 735 |
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1 | EXPECT_EQ(density->transform(), *frustum); |
| 736 | |||
| 737 |
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1 | EXPECT_EQ(Index64(3), density->activeVoxelCount()); |
| 738 | |||
| 739 | { // point 0 | ||
| 740 | Coord xyz(25, 16, 25); | ||
| 741 |
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1 | const float sum = densities[0]; |
| 742 |
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1 | EXPECT_NEAR(sum, density->tree().getValue(xyz), 1e-6); |
| 743 | } | ||
| 744 | |||
| 745 | { // point 1, 2, 4 | ||
| 746 | Coord xyz(25, 17, 25); | ||
| 747 |
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1 | const float sum = densities[1] + densities[2] + densities[4]; |
| 748 |
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1 | EXPECT_NEAR(sum, density->tree().getValue(xyz), 1e-6); |
| 749 | } | ||
| 750 | |||
| 751 | { // point 3 | ||
| 752 | Coord xyz(26, 17, 282); | ||
| 753 |
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1 | const float sum = densities[3]; |
| 754 |
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1 | EXPECT_NEAR(sum, density->tree().getValue(xyz), 1e-6); |
| 755 | } | ||
| 756 | |||
| 757 | // use a clipped frustum grid (point 3 is clipped) | ||
| 758 | |||
| 759 |
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1 | Mask clipMask(*frustum, nullptr, BBoxd(), true); |
| 760 |
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2 | Rasterizer clippedFrustumRasterizer(settings, clipMask); |
| 761 |
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1 | clippedFrustumRasterizer.addPoints(points, /*stream=*/false); |
| 762 | |||
| 763 |
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2 | auto clippedDensity = clippedFrustumRasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 764 | |||
| 765 |
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1 | EXPECT_EQ(Index64(2), clippedDensity->tree().activeVoxelCount()); |
| 766 | |||
| 767 | { // point 0 | ||
| 768 | Coord xyz(25, 16, 25); | ||
| 769 |
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1 | EXPECT_NEAR(density->tree().getValue(xyz), |
| 770 | clippedDensity->tree().getValue(xyz), 1e-6); | ||
| 771 | } | ||
| 772 | |||
| 773 | { // point 1, 2, 4 | ||
| 774 | Coord xyz(25, 17, 25); | ||
| 775 |
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1 | EXPECT_NEAR(density->tree().getValue(xyz), |
| 776 | clippedDensity->tree().getValue(xyz), 1e-6); | ||
| 777 | } | ||
| 778 | |||
| 779 | { // point 3 (outside of frustum) | ||
| 780 | Coord xyz(26, 17, 282); | ||
| 781 |
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1 | EXPECT_NEAR(0.0, clippedDensity->tree().getValue(xyz), 1e-6); |
| 782 | } | ||
| 783 | 1 | } | |
| 784 | |||
| 785 |
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2 | TEST_F(TestPointRasterizeFrustum, testSphereRasterization) |
| 786 | { | ||
| 787 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 788 | using Settings = FrustumRasterizerSettings; | ||
| 789 | |||
| 790 | { // single point that lives at (0,0.2,0) | ||
| 791 | |||
| 792 | Vec3s center(0.0f, 0.2f, 0.0f); | ||
| 793 | |||
| 794 | std::vector<Vec3s> positions = { | ||
| 795 | center | ||
| 796 |
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1 | }; |
| 797 | |||
| 798 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 799 | |||
| 800 | const double voxelSize = 0.5; | ||
| 801 | math::Transform::Ptr transform( | ||
| 802 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 803 | |||
| 804 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 805 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 806 | |||
| 807 | PointDataGrid::Ptr points = | ||
| 808 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 809 | auto& tree = points->tree(); | ||
| 810 | |||
| 811 | { // no radius | ||
| 812 |
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2 | Settings settings(*transform); |
| 813 |
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2 | Rasterizer rasterizer(settings); |
| 814 | |||
| 815 | // add points to rasterizer | ||
| 816 | |||
| 817 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 818 | |||
| 819 | // accumulate density | ||
| 820 | |||
| 821 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 822 | |||
| 823 |
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1 | EXPECT_EQ(Index64(1), density->tree().activeVoxelCount()); |
| 824 | } | ||
| 825 | |||
| 826 | { // use radius (no pscale so default to radius of 1.0) | ||
| 827 |
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2 | Settings settings(*transform); |
| 828 | 1 | settings.useRadius = true; | |
| 829 |
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2 | Rasterizer rasterizer(settings); |
| 830 | |||
| 831 | // add points to rasterizer | ||
| 832 | |||
| 833 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 834 | |||
| 835 | // accumulate density | ||
| 836 | |||
| 837 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 838 | |||
| 839 |
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1 | EXPECT_EQ(Index64(32), density->tree().activeVoxelCount()); |
| 840 | |||
| 841 |
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9 | for (auto leaf = density->tree().cbeginLeaf(); leaf; ++leaf) { |
| 842 |
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40 | for (auto iter = leaf->cbeginValueOn(); iter; ++iter) { |
| 843 | // other values should be less than one | ||
| 844 |
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32 | EXPECT_TRUE(iter.getValue() < 1.0f); |
| 845 | } | ||
| 846 | } | ||
| 847 | } | ||
| 848 | |||
| 849 | { // verify falloff is monotonically decreasing in one axis (with radius scaling) | ||
| 850 |
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2 | Settings settings(*transform); |
| 851 | 1 | settings.useRadius = true; | |
| 852 | 1 | settings.radiusScale = 10.0f; | |
| 853 |
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2 | Rasterizer rasterizer(settings); |
| 854 | |||
| 855 | // add points to rasterizer | ||
| 856 | |||
| 857 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 858 | |||
| 859 | // accumulate density | ||
| 860 | |||
| 861 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 862 | |||
| 863 |
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1 | EXPECT_EQ(Index64(33484), density->tree().activeVoxelCount()); |
| 864 | |||
| 865 | 1 | float value = density->tree().getValue(Coord(0,0,0)); | |
| 866 | |||
| 867 |
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21 | for (int j = 1; j < 100; j++) { |
| 868 | Coord ijk(0, j, 0); | ||
| 869 |
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21 | if (!density->tree().isValueOn(ijk)) break; |
| 870 | float previousValue = value; | ||
| 871 | ✗ | value = density->tree().getValue(Coord(0, j, 0)); | |
| 872 |
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20 | EXPECT_TRUE(value < previousValue); |
| 873 | } | ||
| 874 | |||
| 875 | // last falloff value is almost zero | ||
| 876 |
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1 | EXPECT_TRUE(value < 0.05f); |
| 877 | } | ||
| 878 | |||
| 879 | { // add "radius" attribute, but leave radius set to expect "pscale" attribute | ||
| 880 |
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2 | appendAttribute<float>(tree, "radius"); |
| 881 | |||
| 882 | // set radius to 2.0f | ||
| 883 |
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1 | auto handle = AttributeWriteHandle<float>(tree.beginLeaf()->attributeArray("radius")); |
| 884 |
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1 | handle.set(0, 2.0f); |
| 885 | |||
| 886 |
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2 | Settings settings(*transform); |
| 887 | 1 | settings.useRadius = true; | |
| 888 |
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2 | Rasterizer rasterizer(settings); |
| 889 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 890 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 891 |
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1 | EXPECT_EQ(Index64(32), density->tree().activeVoxelCount()); |
| 892 | } | ||
| 893 | |||
| 894 | { // change radius attribute to "radius" | ||
| 895 |
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2 | Settings settings(*transform); |
| 896 | 1 | settings.useRadius = true; | |
| 897 |
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1 | settings.radiusAttribute = "radius"; |
| 898 |
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2 | Rasterizer rasterizer(settings); |
| 899 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 900 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 901 |
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1 | EXPECT_EQ(Index64(268), density->tree().activeVoxelCount()); |
| 902 | } | ||
| 903 | |||
| 904 | { // use a higher threshold | ||
| 905 |
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2 | Settings settings(*transform); |
| 906 | 1 | settings.useRadius = true; | |
| 907 |
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1 | settings.radiusAttribute = "radius"; |
| 908 | 1 | settings.threshold = 0.1f; | |
| 909 |
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2 | Rasterizer rasterizer(settings); |
| 910 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 911 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 912 |
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1 | EXPECT_EQ(Index64(196), density->tree().activeVoxelCount()); |
| 913 | |||
| 914 |
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9 | for (auto leaf = density->tree().cbeginLeaf(); leaf; ++leaf) { |
| 915 |
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204 | for (auto iter = leaf->cbeginValueOn(); iter; ++iter) { |
| 916 |
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196 | EXPECT_TRUE(*iter >= settings.threshold); |
| 917 | } | ||
| 918 | } | ||
| 919 | } | ||
| 920 | } | ||
| 921 | |||
| 922 | { // frustum sphere rasterization | ||
| 923 | Vec3s center(0.25, 0.25, 1.5); | ||
| 924 | |||
| 925 | std::vector<Vec3s> positions = { | ||
| 926 | center | ||
| 927 |
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1 | }; |
| 928 | |||
| 929 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 930 | |||
| 931 | const double voxelSize = 0.5; | ||
| 932 | math::Transform::Ptr transform( | ||
| 933 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 934 | |||
| 935 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 936 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 937 | |||
| 938 | PointDataGrid::Ptr points = | ||
| 939 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 940 | |||
| 941 | Mat4d mat4( 0.5, 0.0, 0.0, 0.0, | ||
| 942 | 0.0, 0.5, 0.0, 0.0, | ||
| 943 | 0.0, 0.0, 1.0, 0.0, | ||
| 944 | 0.0, 0.0, 1.0, 1.0); | ||
| 945 |
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1 | math::AffineMap affineMap(mat4); |
| 946 | |||
| 947 | math::NonlinearFrustumMap frustumMap( | ||
| 948 |
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1 | BBoxd(Vec3d(-0.5, -0.5, -0.5), Vec3d(99.5, 99.5, 99.5)), |
| 949 |
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1 | /*taper=*/0.5, /*depth=*/1.0, /*affineMap=*/affineMap.copy()); |
| 950 | |||
| 951 |
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3 | math::Transform::Ptr frustum = math::Transform(frustumMap.copy()).copy(); |
| 952 | |||
| 953 | { // accurate method | ||
| 954 |
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2 | Settings settings(*frustum); |
| 955 | 1 | settings.useRadius = true; | |
| 956 | 1 | settings.accurateFrustumRadius = true; | |
| 957 | 1 | settings.radiusScale = 0.1f; | |
| 958 |
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2 | Rasterizer rasterizer(settings); |
| 959 | |||
| 960 | // add points to rasterizer | ||
| 961 | |||
| 962 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 963 | |||
| 964 | // accumulate density | ||
| 965 | |||
| 966 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 967 | |||
| 968 |
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1 | Index64 voxelCount = density->tree().activeVoxelCount(); |
| 969 |
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1 | EXPECT_TRUE(voxelCount > Index64(7000) && voxelCount < Index64(8000)); |
| 970 | } | ||
| 971 | |||
| 972 | { // approximate method | ||
| 973 |
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2 | Settings settings(*frustum); |
| 974 | 1 | settings.useRadius = true; | |
| 975 | 1 | settings.accurateFrustumRadius = false; | |
| 976 | 1 | settings.radiusScale = 0.1f; | |
| 977 |
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2 | Rasterizer rasterizer(settings); |
| 978 | |||
| 979 | // add points to rasterizer | ||
| 980 | |||
| 981 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 982 | |||
| 983 | // accumulate density | ||
| 984 | |||
| 985 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 986 | |||
| 987 |
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1 | Index64 voxelCount = density->tree().activeVoxelCount(); |
| 988 |
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1 | EXPECT_TRUE(voxelCount > Index64(7000) && voxelCount < Index64(8000)); |
| 989 | } | ||
| 990 | } | ||
| 991 | |||
| 992 | { // two overlapping spheres | ||
| 993 | std::vector<Vec3s> positions = { | ||
| 994 | {-1.1f, 0.0, 0}, | ||
| 995 | {1.1f, 0.0, 0} | ||
| 996 |
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1 | }; |
| 997 | |||
| 998 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 999 | |||
| 1000 | const double voxelSize = 1.0; | ||
| 1001 | math::Transform::Ptr transform( | ||
| 1002 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1003 | |||
| 1004 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1005 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1006 | |||
| 1007 | PointDataGrid::Ptr points = | ||
| 1008 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1009 | |||
| 1010 |
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2 | Settings settings(*transform); |
| 1011 | 1 | settings.useRadius = true; | |
| 1012 | 1 | settings.radiusScale = std::sqrt(3.0f)+0.001f; | |
| 1013 |
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2 | Rasterizer rasterizer(settings); |
| 1014 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1015 | |||
| 1016 | { // uniform density with default mode (maximum) | ||
| 1017 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1018 | |||
| 1019 |
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1 | auto value1 = density->tree().getValue(Coord(-1, 0, 0)); |
| 1020 | 1 | auto value2 = density->tree().getValue(Coord(1, 0, 0)); | |
| 1021 | |||
| 1022 |
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1 | EXPECT_TRUE(value1 > 0.9f && value1 < 1.0f); |
| 1023 |
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1 | EXPECT_TRUE(value2 > 0.9f && value2 < 1.0f); |
| 1024 | |||
| 1025 | ✗ | auto center = density->tree().getValue(Coord(0, 0, 0)); | |
| 1026 | |||
| 1027 |
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1 | EXPECT_TRUE(center > 0.3f && center < 0.4f); |
| 1028 | } | ||
| 1029 | |||
| 1030 | { // accumulate uniform density | ||
| 1031 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 1032 | |||
| 1033 |
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1 | auto value1 = density->tree().getValue(Coord(-1, 0, 0)); |
| 1034 | 1 | auto value2 = density->tree().getValue(Coord(1, 0, 0)); | |
| 1035 | |||
| 1036 |
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1 | EXPECT_TRUE(value1 > 0.9f && value1 < 1.0f); |
| 1037 |
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1 | EXPECT_TRUE(value2 > 0.9f && value2 < 1.0f); |
| 1038 | |||
| 1039 | ✗ | auto center = density->tree().getValue(Coord(0, 0, 0)); | |
| 1040 | |||
| 1041 |
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1 | EXPECT_TRUE(center > 0.7f && center < 0.8f); |
| 1042 | } | ||
| 1043 | } | ||
| 1044 | 1 | } | |
| 1045 | |||
| 1046 |
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2 | TEST_F(TestPointRasterizeFrustum, testVelocityMotionBlur) |
| 1047 | { | ||
| 1048 | // particle 0 and particle 2 rasterize into two of the same voxels | ||
| 1049 | |||
| 1050 | std::vector<Vec3s> positions = { | ||
| 1051 | {0.0f, 1.2f, 0.0f}, | ||
| 1052 | {100.0f, 100.0f, 50.0f}, | ||
| 1053 | {0.0f, 1.55f, 0.0f}, | ||
| 1054 |
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1 | }; |
| 1055 | |||
| 1056 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1057 | |||
| 1058 | // leaf containing (0,1,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 1059 | |||
| 1060 | const double voxelSize = 0.5; | ||
| 1061 | math::Transform::Ptr transform( | ||
| 1062 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1063 | |||
| 1064 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1065 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1066 | |||
| 1067 | PointDataGrid::Ptr points = | ||
| 1068 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1069 | auto& pointsTree = points->tree(); | ||
| 1070 | |||
| 1071 | // add velocity attribute | ||
| 1072 | |||
| 1073 | const float fps = 24.0f; | ||
| 1074 | |||
| 1075 |
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2 | appendAttribute<Vec3s>(pointsTree, "v"); |
| 1076 | |||
| 1077 | std::vector<Vec3s> velocities = { | ||
| 1078 | {0, fps, 0}, | ||
| 1079 | {0, fps/2.5f, 0}, | ||
| 1080 | {0, fps*4, 0} | ||
| 1081 |
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1 | }; |
| 1082 | |||
| 1083 | PointAttributeVector<Vec3s> velocityWrapper(velocities); | ||
| 1084 |
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2 | populateAttribute(pointsTree, pointIndexGrid->tree(), "v", velocityWrapper); |
| 1085 | |||
| 1086 | // particle 0: (0, 0.95, 0) => (0, 1.45, 0) | ||
| 1087 | // particle 1: (100, 99.9, 50) => (100, 100.1, 50) | ||
| 1088 | // particle 2: (0, 0.55, 0) => (0, 2.55, 0) | ||
| 1089 | |||
| 1090 | // voxels 0: (0, 2, 0) (0, 3, 0) | ||
| 1091 | // voxels 1: (100, 100, 50) | ||
| 1092 | // voxels 2: (0, 1, 0) (0, 2, 0) (0, 3, 0) (0, 4, 0) (0, 5, 0) | ||
| 1093 | |||
| 1094 | // per-voxel contribution 0: 0.5 | ||
| 1095 | // per-voxel contribution 1: 1.0 | ||
| 1096 | // per-voxel contribution 2: 0.2 | ||
| 1097 | |||
| 1098 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1099 | using Settings = FrustumRasterizerSettings; | ||
| 1100 |
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2 | Settings settings(*transform); |
| 1101 | 1 | settings.velocityMotionBlur = true; | |
| 1102 | 1 | settings.threaded = false; | |
| 1103 |
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2 | Rasterizer rasterizer(settings); |
| 1104 | |||
| 1105 | // add points to rasterizer | ||
| 1106 | |||
| 1107 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1108 | |||
| 1109 | { // accumulate uniform density | ||
| 1110 | |||
| 1111 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 1112 | |||
| 1113 |
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1 | EXPECT_TRUE(density); |
| 1114 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1115 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1116 | |||
| 1117 | const auto& tree = density->constTree(); | ||
| 1118 | |||
| 1119 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1120 | } | ||
| 1121 | |||
| 1122 | { // average uniform density | ||
| 1123 | |||
| 1124 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::AVERAGE); |
| 1125 | |||
| 1126 |
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1 | EXPECT_TRUE(density); |
| 1127 | |||
| 1128 | const auto& tree = density->constTree(); | ||
| 1129 | |||
| 1130 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1131 | } | ||
| 1132 | |||
| 1133 | { // maximum uniform density | ||
| 1134 | |||
| 1135 |
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1 | auto density = rasterizer.rasterizeUniformDensity(RasterMode::MAXIMUM); |
| 1136 | |||
| 1137 |
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1 | EXPECT_TRUE(density); |
| 1138 | |||
| 1139 | const auto& tree = density->constTree(); | ||
| 1140 | |||
| 1141 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1142 | } | ||
| 1143 | |||
| 1144 | // add density attribute | ||
| 1145 | |||
| 1146 |
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1 | appendAttribute<float>(pointsTree, "densityAttr"); |
| 1147 | |||
| 1148 |
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1 | std::vector<float> densities{2.0f, 3.1f, 8.9f}; |
| 1149 | PointAttributeVector<float> densityWrapper(densities); | ||
| 1150 |
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1 | populateAttribute(pointsTree, pointIndexGrid->tree(), "densityAttr", densityWrapper); |
| 1151 | |||
| 1152 | // float w0 = densities[0] / 2.0f; | ||
| 1153 | // float w1 = densities[1]; | ||
| 1154 | // float w2 = densities[2] / 5.0f; | ||
| 1155 | |||
| 1156 | { // accumulate density | ||
| 1157 | |||
| 1158 |
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2 | auto density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE); |
| 1159 | |||
| 1160 |
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1 | EXPECT_TRUE(density); |
| 1161 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1162 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1163 | |||
| 1164 | const auto& tree = density->constTree(); | ||
| 1165 | |||
| 1166 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1167 | } | ||
| 1168 | |||
| 1169 | { // average density | ||
| 1170 | |||
| 1171 |
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2 | auto density = rasterizer.rasterizeDensity("densityAttr", RasterMode::AVERAGE); |
| 1172 | |||
| 1173 |
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1 | EXPECT_TRUE(density); |
| 1174 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1175 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1176 | |||
| 1177 | const auto& tree = density->constTree(); | ||
| 1178 | |||
| 1179 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1180 | } | ||
| 1181 | |||
| 1182 | { // maximum density | ||
| 1183 | |||
| 1184 |
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2 | auto density = rasterizer.rasterizeDensity("densityAttr", RasterMode::MAXIMUM); |
| 1185 | |||
| 1186 |
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1 | EXPECT_TRUE(density); |
| 1187 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1188 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1189 | |||
| 1190 | const auto& tree = density->constTree(); | ||
| 1191 | |||
| 1192 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1193 | } | ||
| 1194 | |||
| 1195 | //////////////////////////// | ||
| 1196 | |||
| 1197 | // point filtering (select one point only which rasterizes to two voxels) | ||
| 1198 | |||
| 1199 |
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1 | appendGroup(pointsTree, "test"); |
| 1200 | |||
| 1201 |
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1 | std::vector<short> membership{1, 0, 0}; |
| 1202 | |||
| 1203 |
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1 | setGroup(pointsTree, pointIndexGrid->tree(), membership, "test"); |
| 1204 | |||
| 1205 |
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3 | std::vector<Name> includeGroups{"test"}; |
| 1206 | 1 | std::vector<Name> excludeGroups; | |
| 1207 |
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2 | MultiGroupFilter filter(includeGroups, excludeGroups, pointsTree.cbeginLeaf()->attributeSet()); |
| 1208 | |||
| 1209 |
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2 | auto density = rasterizer.rasterizeDensity("densityAttr", RasterMode::ACCUMULATE, false, 1.0f, filter); |
| 1210 | |||
| 1211 |
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1 | EXPECT_TRUE(density); |
| 1212 |
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1 | EXPECT_EQ(Index64(2), density->activeVoxelCount()); |
| 1213 | |||
| 1214 | //////////////////////////// | ||
| 1215 | |||
| 1216 | // scale contribution by voxel volume | ||
| 1217 | |||
| 1218 |
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1 | settings.transform = transform->copy(); |
| 1219 | 1 | settings.scaleByVoxelVolume = true; | |
| 1220 |
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3 | Rasterizer scaleRasterizer(settings); |
| 1221 | |||
| 1222 | 1 | const double voxelVolume = transform->voxelSize(Vec3d(0,0,0)).product(); | |
| 1223 |
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1 | EXPECT_EQ(voxelVolume, (voxelSize * voxelSize * voxelSize)); |
| 1224 | |||
| 1225 | // add points to rasterizer | ||
| 1226 | |||
| 1227 |
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1 | scaleRasterizer.addPoints(points, /*stream=*/false); |
| 1228 | |||
| 1229 | { // accumulate uniform density | ||
| 1230 | |||
| 1231 |
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1 | auto density = scaleRasterizer.rasterizeUniformDensity(); |
| 1232 | |||
| 1233 |
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1 | EXPECT_TRUE(density); |
| 1234 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1235 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1236 | |||
| 1237 | const auto& tree = density->constTree(); | ||
| 1238 | |||
| 1239 |
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1 | EXPECT_EQ(Index64(6), tree.activeVoxelCount()); |
| 1240 | } | ||
| 1241 | 1 | } | |
| 1242 | |||
| 1243 |
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1 | TEST_F(TestPointRasterizeFrustum, testCameraMotionBlur) |
| 1244 | { | ||
| 1245 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1246 | using Settings = FrustumRasterizerSettings; | ||
| 1247 | |||
| 1248 | { // test RasterCamera API | ||
| 1249 | math::Transform::Ptr transform1a( | ||
| 1250 | 1 | math::Transform::createLinearTransform(0.5)); | |
| 1251 | math::Transform::Ptr transform1b( | ||
| 1252 |
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1 | math::Transform::createLinearTransform(0.5)); |
| 1253 | math::Transform::Ptr transform2( | ||
| 1254 |
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1 | math::Transform::createLinearTransform(0.75)); |
| 1255 | |||
| 1256 | // manually build frustum transform using camera API | ||
| 1257 | |||
| 1258 | math::NonlinearFrustumMap frustumMap( | ||
| 1259 | ✗ | /*position*/Vec3d(0, 0, -10), /*direction*/Vec3d(0, 0, 1), /*up*/Vec3d(0, 1, 0), | |
| 1260 |
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1 | /*aspect*/1.5, /*znear*/0.001, /*depth*/20, /*xcount*/1000, /*zcount*/1000); |
| 1261 | |||
| 1262 |
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3 | math::Transform::Ptr transform3 = math::Transform(frustumMap.copy()).copy(); |
| 1263 | |||
| 1264 |
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1 | RasterCamera camera(*transform1a); |
| 1265 |
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1 | EXPECT_TRUE(camera.isStatic()); |
| 1266 | |||
| 1267 |
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1 | EXPECT_NEAR(-0.25, camera.shutterStart(), 1e-6); |
| 1268 |
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1 | EXPECT_NEAR(0.25, camera.shutterEnd(), 1e-6); |
| 1269 | |||
| 1270 | 1 | camera.setShutter(-0.3f, 0.8f); | |
| 1271 |
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1 | EXPECT_NEAR(-0.3, camera.shutterStart(), 1e-6); |
| 1272 |
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1 | EXPECT_NEAR(0.8, camera.shutterEnd(), 1e-6); |
| 1273 | |||
| 1274 |
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1 | EXPECT_EQ(size_t(1), camera.size()); |
| 1275 | |||
| 1276 |
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2 | EXPECT_EQ(*transform1a, camera.firstTransform()); |
| 1277 |
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2 | EXPECT_EQ(*transform1a, camera.lastTransform()); |
| 1278 |
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2 | EXPECT_EQ(*transform1a, camera.transform(0)); |
| 1279 | |||
| 1280 | 1 | camera.clear(); | |
| 1281 |
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1 | EXPECT_TRUE(camera.isStatic()); |
| 1282 | |||
| 1283 |
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1 | EXPECT_EQ(size_t(0), camera.size()); |
| 1284 | |||
| 1285 |
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1 | camera.appendTransform(*transform1a); |
| 1286 |
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1 | camera.appendTransform(*transform2); |
| 1287 |
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1 | camera.appendTransform(*transform1b); |
| 1288 |
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1 | camera.appendTransform(*transform3); |
| 1289 | |||
| 1290 |
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1 | EXPECT_TRUE(!camera.isStatic()); |
| 1291 |
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1 | EXPECT_EQ(size_t(4), camera.size()); |
| 1292 | |||
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2 | EXPECT_EQ(*transform1a, camera.firstTransform()); |
| 1294 |
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2 | EXPECT_EQ(*transform3, camera.lastTransform()); |
| 1295 |
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2 | EXPECT_EQ(*transform2, camera.transform(1)); |
| 1296 | |||
| 1297 | // simplify does nothing as the stored transforms do not match | ||
| 1298 | |||
| 1299 |
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1 | camera.simplify(); |
| 1300 |
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1 | EXPECT_EQ(size_t(4), camera.size()); |
| 1301 | |||
| 1302 | 1 | camera.clear(); | |
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1 | camera.appendTransform(*transform1a); |
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1 | camera.appendTransform(*transform1b); |
| 1305 | |||
| 1306 |
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1 | EXPECT_TRUE(!camera.isStatic()); |
| 1307 |
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1 | EXPECT_EQ(size_t(2), camera.size()); |
| 1308 | |||
| 1309 | // as the two transforms are identical, only keep one for efficiency | ||
| 1310 | |||
| 1311 |
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1 | camera.simplify(); |
| 1312 | |||
| 1313 |
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1 | EXPECT_TRUE(camera.isStatic()); |
| 1314 |
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1 | EXPECT_EQ(size_t(1), camera.size()); |
| 1315 | } | ||
| 1316 | |||
| 1317 | { // rasterize points with zero velocity to test multiple voxel contribution | ||
| 1318 | // that derives solely from moving the camera | ||
| 1319 | |||
| 1320 | std::vector<Vec3s> positions = { | ||
| 1321 | {0.0f, 1.2f, 0.0f}, | ||
| 1322 | {100.0f, 100.0f, 50.0f}, | ||
| 1323 | {1.1f, 1.23f, 0.0f}, | ||
| 1324 |
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1 | }; |
| 1325 | |||
| 1326 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1327 | |||
| 1328 | // leaf containing (0,1,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 1329 | |||
| 1330 | const double voxelSize = 0.5; | ||
| 1331 | math::Transform::Ptr transform( | ||
| 1332 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1333 | |||
| 1334 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1335 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1336 | |||
| 1337 | PointDataGrid::Ptr points = | ||
| 1338 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1339 | |||
| 1340 |
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2 | Settings settings(*transform); |
| 1341 | |||
| 1342 | { // accumulate uniform density, static linear camera transform | ||
| 1343 | |||
| 1344 |
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2 | Rasterizer rasterizer(settings); |
| 1345 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1346 | |||
| 1347 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1348 | |||
| 1349 |
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1 | EXPECT_TRUE(density); |
| 1350 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1351 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1352 | |||
| 1353 | const auto& tree = density->constTree(); | ||
| 1354 | |||
| 1355 |
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1 | EXPECT_NEAR(0.0, tree.background(), 1e-6); |
| 1356 | |||
| 1357 |
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1 | EXPECT_EQ(Index64(3), tree.activeVoxelCount()); |
| 1358 | |||
| 1359 |
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1 | EXPECT_NEAR(1, tree.getValue(Coord(0, 2, 0)), 1e-6); |
| 1360 |
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1 | EXPECT_NEAR(1, tree.getValue(Coord(2, 2, 0)), 1e-6); |
| 1361 |
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1 | EXPECT_NEAR(1, tree.getValue(Coord(200, 200, 100)), 1e-6); |
| 1362 | } | ||
| 1363 | |||
| 1364 | { // accumulate uniform density, linear camera transform with X translation | ||
| 1365 | |||
| 1366 |
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1 | math::Transform startTransform(*transform); |
| 1367 |
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1 | startTransform.preTranslate(openvdb::Vec3d(-1, 0, 0)); |
| 1368 |
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1 | math::Transform endTransform(*transform); |
| 1369 |
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1 | endTransform.preTranslate(openvdb::Vec3d(1, 0, 0)); |
| 1370 | |||
| 1371 | auto& camera = settings.camera; | ||
| 1372 |
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1 | EXPECT_EQ(size_t(1), camera.size()); |
| 1373 | 1 | camera.clear(); | |
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1 | camera.appendTransform(startTransform); |
| 1375 |
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1 | camera.appendTransform(endTransform); |
| 1376 | |||
| 1377 |
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2 | Rasterizer rasterizer(settings); |
| 1378 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1379 | |||
| 1380 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1381 | |||
| 1382 |
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1 | EXPECT_TRUE(density); |
| 1383 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1384 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1385 | |||
| 1386 | const auto& tree = density->constTree(); | ||
| 1387 | |||
| 1388 |
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1 | EXPECT_NEAR(0.0, tree.background(), 1e-6); |
| 1389 | |||
| 1390 |
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1 | EXPECT_EQ(Index64(8), tree.activeVoxelCount()); |
| 1391 | |||
| 1392 | // point 0 - the rasterization is from the center of (-1, 2, 0) to the | ||
| 1393 | // center of (1, 2, 0), this means the contribution of these two end | ||
| 1394 | // voxels is half the contribution of (0, 2, 0) which the rasterization | ||
| 1395 | // ray passes entirely though. As the total contribution must add up to 1.0, | ||
| 1396 | // this means the values across these three voxels is 0.25, 0.5, 0.25 | ||
| 1397 | |||
| 1398 | // point 1 - the rasterization is from the center of (199, 200, 100) to the | ||
| 1399 | // center of (201, 200, 100), this means the contribution of these two end | ||
| 1400 | // voxels is half the contribution of (200, 200, 100) which the rasterization | ||
| 1401 | // ray passes entirely though. As the total contribution must add up to 1.0, | ||
| 1402 | // this means the values across these three voxels is 0.25, 0.5, 0.25 | ||
| 1403 | |||
| 1404 | // point 2 - the rasterization is between (1,2,0) and (3,2,0) but the ray | ||
| 1405 | // spends more time in the former than the latter with the rasterization | ||
| 1406 | // values for each voxel being 0.15, 0.5, 0.35 | ||
| 1407 | |||
| 1408 | // note that voxel (1,2,0) receives contributions from point 0 and point 2 | ||
| 1409 | |||
| 1410 | // point 0 contribution | ||
| 1411 |
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1 | EXPECT_NEAR(0.25, tree.getValue(Coord(-1, 2, 0)), 1e-6); |
| 1412 |
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1 | EXPECT_NEAR(0.5, tree.getValue(Coord(0, 2, 0)), 1e-6); |
| 1413 | |||
| 1414 | // point 0 and point 1 contribution (max of 0.25 and 0.15) | ||
| 1415 |
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1 | EXPECT_NEAR(0.25, tree.getValue(Coord(1, 2, 0)), 1e-6); |
| 1416 | |||
| 1417 | // point 1 contribution | ||
| 1418 |
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1 | EXPECT_NEAR(0.5, tree.getValue(Coord(2, 2, 0)), 1e-6); |
| 1419 |
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1 | EXPECT_NEAR(0.35, tree.getValue(Coord(3, 2, 0)), 1e-6); |
| 1420 | |||
| 1421 | // point 2 contribution | ||
| 1422 |
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1 | EXPECT_NEAR(0.25, tree.getValue(Coord(199, 200, 100)), 1e-6); |
| 1423 |
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1 | EXPECT_NEAR(0.5, tree.getValue(Coord(200, 200, 100)), 1e-6); |
| 1424 |
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1 | EXPECT_NEAR(0.25, tree.getValue(Coord(201, 200, 100)), 1e-6); |
| 1425 | |||
| 1426 | // re-rasterize using accumulate mode and verify voxel value that receives | ||
| 1427 | // contribution from two points | ||
| 1428 | |||
| 1429 |
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1 | auto density2 = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE); |
| 1430 | |||
| 1431 |
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1 | EXPECT_NEAR(0.25 + 0.15, density2->tree().getValue(Coord(1, 2, 0)), 1e-6); |
| 1432 | } | ||
| 1433 | } | ||
| 1434 | |||
| 1435 | { // rasterize a single point with three camera transforms | ||
| 1436 | std::vector<Vec3s> positions = { | ||
| 1437 | {0.0f, 1.2f, 0.0f}, | ||
| 1438 |
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1 | }; |
| 1439 | |||
| 1440 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1441 | |||
| 1442 | const double voxelSize = 0.5; | ||
| 1443 | math::Transform::Ptr transform( | ||
| 1444 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1445 | |||
| 1446 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1447 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1448 | |||
| 1449 | PointDataGrid::Ptr points = | ||
| 1450 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1451 | |||
| 1452 |
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2 | Settings settings(*transform); |
| 1453 | |||
| 1454 |
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1 | math::Transform startTransform(*transform); |
| 1455 |
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1 | startTransform.preTranslate(openvdb::Vec3d(0, 0, 0)); |
| 1456 |
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1 | math::Transform middleTransform(*transform); |
| 1457 |
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1 | middleTransform.preTranslate(openvdb::Vec3d(2, 0, 0)); |
| 1458 |
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1 | math::Transform endTransform(*transform); |
| 1459 |
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1 | endTransform.preTranslate(openvdb::Vec3d(2, 2, 0)); |
| 1460 | |||
| 1461 | auto& camera = settings.camera; | ||
| 1462 | 1 | camera.clear(); | |
| 1463 |
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1 | camera.appendTransform(startTransform); |
| 1464 |
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1 | camera.appendTransform(middleTransform); |
| 1465 |
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1 | camera.appendTransform(endTransform); |
| 1466 |
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1 | camera.simplify(); |
| 1467 |
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1 | EXPECT_EQ(size_t(3), camera.size()); |
| 1468 | |||
| 1469 | { // point rasterize with two motion samples | ||
| 1470 |
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2 | Rasterizer rasterizer(settings); |
| 1471 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1472 | |||
| 1473 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1474 | |||
| 1475 |
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1 | EXPECT_TRUE(density); |
| 1476 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1477 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1478 | |||
| 1479 | const auto& tree = density->constTree(); | ||
| 1480 | |||
| 1481 |
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1 | EXPECT_NEAR(0.0, tree.background(), 1e-6); |
| 1482 | |||
| 1483 | float total = 0.0f; | ||
| 1484 |
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3 | for (auto leaf = tree.cbeginLeaf(); leaf; ++leaf) { |
| 1485 |
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5 | for (auto iter = leaf->cbeginValueOn(); iter; ++iter) { |
| 1486 |
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3 | total += iter.getValue(); |
| 1487 | } | ||
| 1488 | } | ||
| 1489 | |||
| 1490 |
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1 | EXPECT_NEAR(1.0, total, 1e-6); |
| 1491 | } | ||
| 1492 | |||
| 1493 | { // point rasterize with three motion samples | ||
| 1494 | // this value must be set explicitly and must be less than or equal to the | ||
| 1495 | // number of camera transforms, if motion samples is left at the default value of 2 | ||
| 1496 | // this simply ignores the middle transform (as above) | ||
| 1497 | 1 | settings.motionSamples = 3; | |
| 1498 | |||
| 1499 |
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2 | Rasterizer rasterizer(settings); |
| 1500 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1501 | |||
| 1502 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1503 | |||
| 1504 |
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1 | EXPECT_TRUE(density); |
| 1505 |
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2 | EXPECT_EQ(openvdb::Name("density"), density->getName()); |
| 1506 |
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1 | EXPECT_EQ(density->transform(), *transform); |
| 1507 | |||
| 1508 | const auto& tree = density->constTree(); | ||
| 1509 | |||
| 1510 |
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1 | EXPECT_NEAR(0.0, tree.background(), 1e-6); |
| 1511 | |||
| 1512 | float total = 0.0f; | ||
| 1513 |
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3 | for (auto leaf = tree.cbeginLeaf(); leaf; ++leaf) { |
| 1514 |
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7 | for (auto iter = leaf->cbeginValueOn(); iter; ++iter) { |
| 1515 |
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5 | total += iter.getValue(); |
| 1516 | } | ||
| 1517 | } | ||
| 1518 | |||
| 1519 |
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1 | EXPECT_NEAR(1.0, total, 1e-6); |
| 1520 | } | ||
| 1521 | } | ||
| 1522 | 1 | } | |
| 1523 | |||
| 1524 | #ifndef ONLY_RASTER_FLOAT | ||
| 1525 |
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2 | TEST_F(TestPointRasterizeFrustum, testBool) |
| 1526 | { | ||
| 1527 | std::vector<Vec3s> positions = { | ||
| 1528 | {0.0f, 1.2f, 0.0f}, | ||
| 1529 | {100.0f, 100.0f, 50.0f}, | ||
| 1530 | {1.1f, 1.23f, 0.0f}, | ||
| 1531 |
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1 | }; |
| 1532 | |||
| 1533 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1534 | |||
| 1535 | // leaf containing (0,1,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 1536 | |||
| 1537 | const double voxelSize = 0.5; | ||
| 1538 | math::Transform::Ptr transform( | ||
| 1539 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1540 | |||
| 1541 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1542 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1543 | |||
| 1544 | PointDataGrid::Ptr points = | ||
| 1545 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1546 | auto& pointsTree = points->tree(); | ||
| 1547 | |||
| 1548 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1549 | using Settings = FrustumRasterizerSettings; | ||
| 1550 | |||
| 1551 | { | ||
| 1552 |
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2 | Settings settings(*transform); |
| 1553 | 1 | settings.velocityMotionBlur = false; | |
| 1554 |
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2 | Rasterizer rasterizer(settings); |
| 1555 | |||
| 1556 | // add points to rasterizer | ||
| 1557 | |||
| 1558 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1559 | |||
| 1560 | // verify ability to rasterize bool or mask grids | ||
| 1561 | |||
| 1562 |
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1 | auto boolGrid = rasterizer.rasterizeMask<BoolGrid>(); |
| 1563 | |||
| 1564 |
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1 | EXPECT_TRUE(boolGrid->isType<BoolGrid>()); |
| 1565 |
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2 | EXPECT_EQ(Name("mask"), boolGrid->getName()); |
| 1566 |
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1 | EXPECT_EQ(Index64(3), boolGrid->activeVoxelCount()); |
| 1567 | |||
| 1568 |
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1 | auto maskGrid = rasterizer.rasterizeMask<MaskGrid>(); |
| 1569 | |||
| 1570 |
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1 | EXPECT_TRUE(maskGrid->isType<MaskGrid>()); |
| 1571 |
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2 | EXPECT_EQ(Name("mask"), maskGrid->getName()); |
| 1572 |
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1 | EXPECT_EQ(Index64(3), maskGrid->activeVoxelCount()); |
| 1573 | |||
| 1574 | // throw if attempting to use average mode when rasterizing a mask | ||
| 1575 |
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|
2 | EXPECT_THROW((rasterizer.rasterizeAttribute<BoolGrid, bool>("", RasterMode::AVERAGE)), |
| 1576 | ValueError); | ||
| 1577 | |||
| 1578 | // throw if attempting to use maximum mode when rasterizing a mask | ||
| 1579 |
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2 | EXPECT_THROW((rasterizer.rasterizeAttribute<BoolGrid, bool>("", RasterMode::MAXIMUM)), |
| 1580 | ValueError); | ||
| 1581 | } | ||
| 1582 | |||
| 1583 | // append velocity attribute | ||
| 1584 | |||
| 1585 |
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2 | appendAttribute<Vec3s>(pointsTree, "v"); |
| 1586 | |||
| 1587 | std::vector<Vec3s> velocities = { | ||
| 1588 | {0.0f, 10.0f, 0.0f}, | ||
| 1589 | {1.0f, 2.0f, 3.0f}, | ||
| 1590 | {-3.0f, -2.0f, -1.0f}, | ||
| 1591 |
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1 | }; |
| 1592 | PointAttributeVector<Vec3s> velocityWrapper(velocities); | ||
| 1593 |
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2 | populateAttribute(pointsTree, pointIndexGrid->tree(), "v", velocityWrapper); |
| 1594 | |||
| 1595 | // use velocity motion blur | ||
| 1596 | |||
| 1597 | { | ||
| 1598 |
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2 | Settings settings(*transform); |
| 1599 | 1 | settings.velocityMotionBlur = true; | |
| 1600 |
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2 | Rasterizer rasterizer(settings); |
| 1601 | |||
| 1602 | // add points to rasterizer | ||
| 1603 | |||
| 1604 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1605 | |||
| 1606 | // verify ability to rasterize bool or mask grids | ||
| 1607 | |||
| 1608 |
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1 | auto boolGrid = rasterizer.rasterizeMask<BoolGrid>(); |
| 1609 | |||
| 1610 |
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1 | EXPECT_TRUE(boolGrid->isType<BoolGrid>()); |
| 1611 |
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2 | EXPECT_EQ(Name("mask"), boolGrid->getName()); |
| 1612 |
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1 | EXPECT_EQ(Index64(5), boolGrid->activeVoxelCount()); |
| 1613 | |||
| 1614 |
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1 | auto maskGrid = rasterizer.rasterizeMask<MaskGrid>(); |
| 1615 | |||
| 1616 |
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1 | EXPECT_TRUE(maskGrid->isType<MaskGrid>()); |
| 1617 |
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2 | EXPECT_EQ(Name("mask"), maskGrid->getName()); |
| 1618 |
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1 | EXPECT_EQ(Index64(5), maskGrid->activeVoxelCount()); |
| 1619 | } | ||
| 1620 | 1 | } | |
| 1621 | |||
| 1622 |
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2 | TEST_F(TestPointRasterizeFrustum, testInt) |
| 1623 | { | ||
| 1624 | std::vector<Vec3s> positions = { | ||
| 1625 | {0.0f, 1.2f, 0.0f}, | ||
| 1626 | {0.0f, 0.6f, 0.1f}, | ||
| 1627 | {1.1f, 1.23f, 0.0f}, | ||
| 1628 |
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1 | }; |
| 1629 | |||
| 1630 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1631 | |||
| 1632 | // leaf containing (0,1,0) voxel lives at (-0.25 => 3.75) in each axis world space for 0.5 voxel size | ||
| 1633 | |||
| 1634 | const double voxelSize = 0.5; | ||
| 1635 | math::Transform::Ptr transform( | ||
| 1636 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1637 | |||
| 1638 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1639 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1640 | |||
| 1641 | PointDataGrid::Ptr points = | ||
| 1642 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1643 | auto& pointsTree = points->tree(); | ||
| 1644 | |||
| 1645 | // append id attribute | ||
| 1646 | |||
| 1647 |
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1 | appendAttribute<int>(pointsTree, "id"); |
| 1648 | |||
| 1649 |
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1 | std::vector<int> ids = { 1, 2, 3 }; |
| 1650 | PointAttributeVector<int> idWrapper(ids); | ||
| 1651 |
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2 | populateAttribute(pointsTree, pointIndexGrid->tree(), "id", idWrapper); |
| 1652 | |||
| 1653 | // append velocity attribute | ||
| 1654 | |||
| 1655 |
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2 | appendAttribute<Vec3s>(pointsTree, "v"); |
| 1656 | |||
| 1657 | std::vector<Vec3s> velocities = { | ||
| 1658 | {0.0f, 10.0f, 0.0f}, | ||
| 1659 | {0.0f, 24.0f, 0.0f}, | ||
| 1660 | {0.0f, -2.0f, 0.0f}, | ||
| 1661 |
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1 | }; |
| 1662 | PointAttributeVector<Vec3s> velocityWrapper(velocities); | ||
| 1663 |
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2 | populateAttribute(pointsTree, pointIndexGrid->tree(), "v", velocityWrapper); |
| 1664 | |||
| 1665 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1666 | using Settings = FrustumRasterizerSettings; | ||
| 1667 | |||
| 1668 | { | ||
| 1669 |
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2 | Settings settings(*transform); |
| 1670 | 1 | settings.velocityMotionBlur = true; | |
| 1671 |
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2 | Rasterizer rasterizer(settings); |
| 1672 | |||
| 1673 | // add points to rasterizer | ||
| 1674 | |||
| 1675 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1676 | |||
| 1677 | { // rasterize int grid with accumulate mode | ||
| 1678 |
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2 | auto intGrid = rasterizer.rasterizeAttribute("id", RasterMode::ACCUMULATE); |
| 1679 | |||
| 1680 |
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1 | EXPECT_TRUE(intGrid->isType<Int32Grid>()); |
| 1681 |
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2 | EXPECT_EQ(Name("id"), intGrid->getName()); |
| 1682 |
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1 | EXPECT_EQ(Index64(5), intGrid->activeVoxelCount()); |
| 1683 | |||
| 1684 |
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1 | auto intGridTyped = GridBase::grid<Int32Grid>(intGrid); |
| 1685 | |||
| 1686 |
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1 | EXPECT_EQ(2, intGridTyped->tree().getValue(Coord(0,1,0))); |
| 1687 |
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1 | EXPECT_EQ(3, intGridTyped->tree().getValue(Coord(0,2,0))); |
| 1688 | } | ||
| 1689 | |||
| 1690 | { // rasterize int grid with maximum mode | ||
| 1691 |
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2 | auto intGrid = rasterizer.rasterizeAttribute("id", RasterMode::MAXIMUM); |
| 1692 | |||
| 1693 |
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1 | EXPECT_EQ(Index64(5), intGrid->activeVoxelCount()); |
| 1694 | |||
| 1695 |
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1 | auto intGridTyped = GridBase::grid<Int32Grid>(intGrid); |
| 1696 | |||
| 1697 |
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1 | EXPECT_EQ(2, intGridTyped->tree().getValue(Coord(0,1,0))); |
| 1698 |
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1 | EXPECT_EQ(2, intGridTyped->tree().getValue(Coord(0,2,0))); |
| 1699 | } | ||
| 1700 | } | ||
| 1701 | 1 | } | |
| 1702 | #endif | ||
| 1703 | |||
| 1704 |
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1 | TEST_F(TestPointRasterizeFrustum, testInputs) |
| 1705 | { | ||
| 1706 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1707 | using Settings = FrustumRasterizerSettings; | ||
| 1708 | |||
| 1709 | 1 | auto empty = PointDataGrid::create(); | |
| 1710 | |||
| 1711 | const double voxelSize = 0.5; | ||
| 1712 | math::Transform::Ptr transform( | ||
| 1713 |
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1 | math::Transform::createLinearTransform(voxelSize)); |
| 1714 | |||
| 1715 | // attempt to create a rasterizer with velocity motion blur enabled, | ||
| 1716 | // but no velocity attribute name throws | ||
| 1717 | |||
| 1718 |
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2 | Settings settings(*transform); |
| 1719 |
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1 | settings.velocityAttribute = ""; |
| 1720 |
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1 | settings.velocityMotionBlur = true; |
| 1721 | |||
| 1722 |
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2 | EXPECT_THROW(Rasterizer{settings}, ValueError); |
| 1723 | |||
| 1724 | // reset velocity attribute | ||
| 1725 |
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1 | settings.velocityAttribute = "v"; |
| 1726 | |||
| 1727 | // adding an empty points grid still produces an empty grid | ||
| 1728 | |||
| 1729 |
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2 | Rasterizer rasterizer(settings); |
| 1730 |
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1 | EXPECT_NO_THROW(rasterizer.addPoints(empty)); |
| 1731 | |||
| 1732 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1733 |
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1 | EXPECT_EQ(Index64(0), density->activeVoxelCount()); |
| 1734 | |||
| 1735 | #ifndef ONLY_RASTER_FLOAT | ||
| 1736 | // attempting to rasterize position is not allowed | ||
| 1737 | |||
| 1738 |
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|
2 | EXPECT_THROW((rasterizer.rasterizeAttribute<Vec3SGrid, Vec3s>("P")), ValueError); |
| 1739 | #endif | ||
| 1740 | |||
| 1741 | // add a points grid that contains points | ||
| 1742 | |||
| 1743 | std::vector<Vec3s> positions = { | ||
| 1744 | {0.0f, 1.2f, 0.0f}, | ||
| 1745 | {100.0f, 100.0f, 50.0f}, | ||
| 1746 | {1.1f, 1.23f, 0.0f}, | ||
| 1747 |
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1 | }; |
| 1748 | |||
| 1749 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1750 | |||
| 1751 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1752 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1753 | |||
| 1754 | PointDataGrid::Ptr points = | ||
| 1755 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1756 | |||
| 1757 |
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1 | rasterizer.addPoints(points); |
| 1758 | |||
| 1759 | // attempting to rasterize an attribute that doesn't exist simply ignores that grid | ||
| 1760 | |||
| 1761 | 1 | FloatGrid::Ptr invalidAttributeGrid; | |
| 1762 |
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1 | EXPECT_NO_THROW((invalidAttributeGrid = |
| 1763 | rasterizer.rasterizeAttribute<FloatGrid, float>("invalidAttribute"))); | ||
| 1764 |
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1 | EXPECT_TRUE(invalidAttributeGrid); |
| 1765 | |||
| 1766 | #ifndef ONLY_RASTER_FLOAT | ||
| 1767 | // add density attribute | ||
| 1768 | |||
| 1769 |
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1 | appendAttribute<float>(points->tree(), "density"); |
| 1770 | |||
| 1771 |
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1 | std::vector<float> densities{2.0f, 3.1f, 8.9f}; |
| 1772 | PointAttributeVector<float> densityWrapper(densities); | ||
| 1773 |
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2 | populateAttribute(points->tree(), pointIndexGrid->tree(), "density", densityWrapper); |
| 1774 | |||
| 1775 | // attempting to rasterize an attribute with the wrong value type should error | ||
| 1776 | |||
| 1777 |
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2 | EXPECT_THROW((rasterizer.rasterizeAttribute<DoubleGrid, double>("density")), |
| 1778 | TypeError); | ||
| 1779 | #endif | ||
| 1780 | 1 | } | |
| 1781 | |||
| 1782 | |||
| 1783 | namespace | ||
| 1784 | { | ||
| 1785 | |||
| 1786 | // Test thread-safe Interrupter that halts on the second interrupt check | ||
| 1787 | struct HaltOnSecondInterrupt : public util::NullInterrupter | ||
| 1788 | { | ||
| 1789 | /// Default constructor | ||
| 1790 | HaltOnSecondInterrupt() = default; | ||
| 1791 | 4 | void start(const char* name = NULL) override { (void)name; } | |
| 1792 | 4 | void end() override {} | |
| 1793 | /// Check if an interruptible operation should be aborted. | ||
| 1794 |
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1067 | inline bool wasInterrupted(int percent = -1) override |
| 1795 | { | ||
| 1796 | (void)percent; | ||
| 1797 |
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1067 | if (mInterrupt) return true; |
| 1798 | mInterrupt = true; | ||
| 1799 | 5 | return false; | |
| 1800 | } | ||
| 1801 | std::atomic<bool> mInterrupt{false}; | ||
| 1802 | }; | ||
| 1803 | |||
| 1804 | } // namespace | ||
| 1805 | |||
| 1806 | |||
| 1807 |
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2 | TEST_F(TestPointRasterizeFrustum, testInterrupter) |
| 1808 | { | ||
| 1809 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1810 | using Settings = FrustumRasterizerSettings; | ||
| 1811 | using Mask = FrustumRasterizerMask; | ||
| 1812 | using InterruptRasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1813 | |||
| 1814 | // manually build frustum transform using camera API | ||
| 1815 | |||
| 1816 | Vec3d position(9.5, 7.8, 21.7); | ||
| 1817 | |||
| 1818 | math::NonlinearFrustumMap frustumMap( | ||
| 1819 | ✗ | /*position*/position, /*direction*/-position.unit(), /*up*/-position.unit().cross(Vec3d(0,1,0)) * 10, | |
| 1820 |
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1 | /*aspect*/0.75, /*znear*/10, /*depth*/100, /*xcount*/100, /*zcount*/400); |
| 1821 | |||
| 1822 |
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3 | math::Transform::Ptr frustum = math::Transform(frustumMap.copy()).copy(); |
| 1823 | |||
| 1824 | // build a level set sphere | ||
| 1825 | |||
| 1826 | Vec3s center(0, 0, 0); | ||
| 1827 | // float radius = 1; | ||
| 1828 | float radius = 10; | ||
| 1829 | float voxelSize = 0.2f; | ||
| 1830 | |||
| 1831 |
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1 | auto surface = tools::createLevelSetSphere<FloatGrid>(radius, center, voxelSize); |
| 1832 | |||
| 1833 | // scatter points inside the sphere | ||
| 1834 | |||
| 1835 |
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1 | auto points = points::denseUniformPointScatter(*surface, /*pointsPerVoxel=*/8); |
| 1836 | |||
| 1837 | // rasterize without an interrupter | ||
| 1838 | |||
| 1839 |
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2 | Settings settings(*frustum); |
| 1840 |
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1 | settings.velocityAttribute = ""; |
| 1841 | 1 | settings.velocityMotionBlur = false; | |
| 1842 | Mask mask; | ||
| 1843 | { // rasterize as points | ||
| 1844 |
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2 | Rasterizer rasterizer(settings); |
| 1845 |
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1 | rasterizer.addPoints(points); |
| 1846 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1847 | |||
| 1848 | { // verify this test interrupter interrupts the second time | ||
| 1849 | 1 | HaltOnSecondInterrupt interrupter; | |
| 1850 |
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1 | EXPECT_TRUE(!interrupter.wasInterrupted()); |
| 1851 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1852 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1853 | } | ||
| 1854 | |||
| 1855 | { // rasterize with the interrupter with threading enabled (relies on TBB's cancel_group_execution()) | ||
| 1856 | 1 | HaltOnSecondInterrupt interrupter; | |
| 1857 |
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2 | InterruptRasterizer interruptRasterizer(settings, mask, &interrupter); |
| 1858 |
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1 | interruptRasterizer.addPoints(points); |
| 1859 |
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1 | auto interruptDensity = interruptRasterizer.rasterizeUniformDensity(); |
| 1860 | |||
| 1861 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1862 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() > Index64(0)); |
| 1863 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() < Index64(density->activeVoxelCount())); |
| 1864 | } | ||
| 1865 | |||
| 1866 | { // rasterize with the interrupter with threading disabled | ||
| 1867 | 1 | HaltOnSecondInterrupt interrupter; | |
| 1868 | 1 | settings.threaded = false; | |
| 1869 |
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2 | InterruptRasterizer interruptRasterizer(settings, mask, &interrupter); |
| 1870 |
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1 | interruptRasterizer.addPoints(points); |
| 1871 |
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1 | auto interruptDensity = interruptRasterizer.rasterizeUniformDensity(); |
| 1872 | |||
| 1873 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1874 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() > Index64(0)); |
| 1875 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() < Index64(density->activeVoxelCount())); |
| 1876 | } | ||
| 1877 | } | ||
| 1878 | |||
| 1879 | { // rasterize as spheres | ||
| 1880 | std::vector<Vec3s> positions = { | ||
| 1881 | {0, 0, 0}, | ||
| 1882 | {10, 10, 10} | ||
| 1883 |
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1 | }; |
| 1884 | |||
| 1885 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1886 | |||
| 1887 | math::Transform::Ptr transform( | ||
| 1888 |
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1 | math::Transform::createLinearTransform(/*voxelSize=*/1.0f)); |
| 1889 | |||
| 1890 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1891 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1892 | |||
| 1893 | PointDataGrid::Ptr points = | ||
| 1894 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1895 | |||
| 1896 |
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2 | Settings settings(*frustum); |
| 1897 | 1 | settings.useRadius = true; | |
| 1898 | 1 | settings.radiusScale = 2.0f; | |
| 1899 |
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2 | Rasterizer rasterizer(settings); |
| 1900 |
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1 | rasterizer.addPoints(points); |
| 1901 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1902 | |||
| 1903 | { // rasterize with the interrupter with threading enabled (relies on TBB's cancel_group_execution()) | ||
| 1904 | 1 | HaltOnSecondInterrupt interrupter; | |
| 1905 |
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2 | InterruptRasterizer interruptRasterizer(settings, mask, &interrupter); |
| 1906 |
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1 | interruptRasterizer.addPoints(points); |
| 1907 |
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1 | auto interruptDensity = interruptRasterizer.rasterizeUniformDensity(); |
| 1908 | |||
| 1909 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1910 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() > Index64(0)); |
| 1911 |
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1 | EXPECT_TRUE(interruptDensity->activeVoxelCount() < Index64(density->activeVoxelCount())); |
| 1912 | } | ||
| 1913 | |||
| 1914 | { // rasterize with a very large radius to ensure interrupt is triggered early | ||
| 1915 | 1 | settings.radiusScale = 100.0f; | |
| 1916 | |||
| 1917 | 1 | HaltOnSecondInterrupt interrupter; | |
| 1918 |
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2 | InterruptRasterizer interruptRasterizer(settings, mask, &interrupter); |
| 1919 |
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1 | interruptRasterizer.addPoints(points); |
| 1920 |
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1 | auto interruptDensity = interruptRasterizer.rasterizeUniformDensity(); |
| 1921 | |||
| 1922 |
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1 | EXPECT_TRUE(interrupter.wasInterrupted()); |
| 1923 | |||
| 1924 | // when a large sphere is used, interrupt is done per XY slice, | ||
| 1925 | // which results in an empty density grid | ||
| 1926 |
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1 | EXPECT_EQ(Index64(0), interruptDensity->activeVoxelCount()); |
| 1927 | } | ||
| 1928 | } | ||
| 1929 | 1 | } | |
| 1930 | |||
| 1931 |
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2 | TEST_F(TestPointRasterizeFrustum, testClipping) |
| 1932 | { | ||
| 1933 | std::vector<Vec3s> positions = { | ||
| 1934 | {0, 0, 0}, | ||
| 1935 | {0, 2, -2}, | ||
| 1936 | {3, 4, 0}, | ||
| 1937 | {1, 4, 1}, | ||
| 1938 | {2, 5, 2}, | ||
| 1939 |
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1 | }; |
| 1940 | |||
| 1941 | const PointAttributeVector<Vec3s> pointList(positions); | ||
| 1942 | |||
| 1943 | math::Transform::Ptr transform( | ||
| 1944 |
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1 | math::Transform::createLinearTransform(/*voxelSize=*/0.5f)); |
| 1945 | |||
| 1946 | math::Transform::Ptr outputTransform( | ||
| 1947 |
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1 | math::Transform::createLinearTransform(/*voxelSize=*/1.0f)); |
| 1948 | |||
| 1949 | tools::PointIndexGrid::Ptr pointIndexGrid = | ||
| 1950 |
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1 | tools::createPointIndexGrid<tools::PointIndexGrid>(pointList, *transform); |
| 1951 | |||
| 1952 | PointDataGrid::Ptr points = | ||
| 1953 |
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1 | createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform); |
| 1954 | auto& tree = points->tree(); | ||
| 1955 | |||
| 1956 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 1957 | using Settings = FrustumRasterizerSettings; | ||
| 1958 | using Mask = FrustumRasterizerMask; | ||
| 1959 | |||
| 1960 | { // default settings (except no motion-blur), no clip bbox or clip mask | ||
| 1961 |
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2 | Settings settings(*outputTransform); |
| 1962 | 1 | settings.velocityMotionBlur = false; | |
| 1963 | |||
| 1964 | Mask mask; | ||
| 1965 | |||
| 1966 |
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2 | Rasterizer rasterizer(settings, mask); |
| 1967 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1968 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1969 |
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1 | EXPECT_EQ(Index64(5), density->tree().activeVoxelCount()); |
| 1970 | } | ||
| 1971 | |||
| 1972 | { // clip bbox that eliminates fifth point | ||
| 1973 |
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2 | Settings settings(*outputTransform); |
| 1974 |
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1 | settings.velocityMotionBlur = false; |
| 1975 | |||
| 1976 |
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1 | Mask mask(*outputTransform, nullptr, BBoxd(Vec3d(-0.5,-0.5,-2.5), Vec3d(4.0,4.0,3))); |
| 1977 | |||
| 1978 |
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2 | Rasterizer rasterizer(settings, mask); |
| 1979 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1980 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1981 | |||
| 1982 |
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1 | EXPECT_EQ(Index64(4), density->tree().activeVoxelCount()); |
| 1983 | } | ||
| 1984 | |||
| 1985 | { // clip bbox that only keeps first two points | ||
| 1986 |
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2 | Settings settings(*outputTransform); |
| 1987 |
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1 | settings.velocityMotionBlur = false; |
| 1988 | |||
| 1989 |
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1 | Mask mask(*outputTransform, nullptr, BBoxd(Vec3d(-0.5,-0.5,-2.5), Vec3d(1,3,0.5))); |
| 1990 | |||
| 1991 |
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2 | Rasterizer rasterizer(settings, mask); |
| 1992 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 1993 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 1994 |
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1 | EXPECT_EQ(Index64(2), density->tree().activeVoxelCount()); |
| 1995 | } | ||
| 1996 | |||
| 1997 | { // clip mask that keeps all but the fifth point | ||
| 1998 |
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1 | auto sphere = tools::createLevelSetSphere<FloatGrid>(5.5f, openvdb::Vec3f(0), 1.0f); |
| 1999 |
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1 | auto sphereBool = tools::interiorMask(*sphere); |
| 2000 |
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1 | auto sphereMask = MaskGrid::Ptr(new MaskGrid(*sphereBool)); |
| 2001 | |||
| 2002 |
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2 | Settings settings(*outputTransform); |
| 2003 |
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1 | settings.velocityMotionBlur = false; |
| 2004 | |||
| 2005 |
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1 | Mask mask(*outputTransform, sphereMask.get()); |
| 2006 | |||
| 2007 |
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2 | Rasterizer rasterizer(settings, mask); |
| 2008 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2009 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2010 |
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1 | EXPECT_EQ(Index64(4), density->tree().activeVoxelCount()); |
| 2011 | } | ||
| 2012 | |||
| 2013 | { // clip mask that keeps all but the first two points | ||
| 2014 |
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1 | auto sphere = tools::createLevelSetSphere<FloatGrid>(5.0f, openvdb::Vec3f(0), 1.0f); |
| 2015 |
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1 | auto sphereBool = tools::interiorMask(*sphere); |
| 2016 |
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1 | auto sphereMask = MaskGrid::Ptr(new MaskGrid(*sphereBool)); |
| 2017 | |||
| 2018 |
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2 | Settings settings(*outputTransform); |
| 2019 |
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1 | settings.velocityMotionBlur = false; |
| 2020 | |||
| 2021 |
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1 | Mask mask(*outputTransform, sphereMask.get()); |
| 2022 | |||
| 2023 |
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2 | Rasterizer rasterizer(settings, mask); |
| 2024 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2025 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2026 |
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1 | EXPECT_EQ(Index64(3), density->tree().activeVoxelCount()); |
| 2027 | } | ||
| 2028 | |||
| 2029 | { // clip mask that only keeps first two points | ||
| 2030 |
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1 | auto sphere = tools::createLevelSetSphere<FloatGrid>(5.0f, openvdb::Vec3f(0), 1.0f); |
| 2031 |
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1 | auto sphereBool = tools::interiorMask(*sphere); |
| 2032 |
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1 | auto sphereMask = MaskGrid::Ptr(new MaskGrid(*sphereBool)); |
| 2033 | |||
| 2034 | // third point coord for lookup | ||
| 2035 | Coord coord(1, 4, 1); | ||
| 2036 | |||
| 2037 | sphereMask->tree().setValueOff(coord); | ||
| 2038 | |||
| 2039 |
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2 | Settings settings(*outputTransform); |
| 2040 |
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1 | settings.velocityMotionBlur = false; |
| 2041 | |||
| 2042 |
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1 | Mask mask(*outputTransform, sphereMask.get()); |
| 2043 | |||
| 2044 | 1 | settings.threaded = false; | |
| 2045 |
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2 | Rasterizer rasterizer(settings, mask); |
| 2046 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2047 | |||
| 2048 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2049 |
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1 | EXPECT_EQ(Index64(2), density->tree().activeVoxelCount()); |
| 2050 | |||
| 2051 | // introduce group where third point is disabled | ||
| 2052 | |||
| 2053 |
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1 | appendGroup(tree, "test"); |
| 2054 |
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1 | std::vector<short> membership{1, 1, 0, 1, 1}; |
| 2055 |
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1 | setGroup(tree, pointIndexGrid->tree(), membership, "test"); |
| 2056 | |||
| 2057 |
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3 | std::vector<Name> includeGroups{"test"}; |
| 2058 | 1 | std::vector<Name> excludeGroups; | |
| 2059 |
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2 | MultiGroupFilter filter(includeGroups, excludeGroups, tree.cbeginLeaf()->attributeSet()); |
| 2060 | |||
| 2061 | // re-enable mask voxel for third point | ||
| 2062 | |||
| 2063 | sphereMask->tree().setValueOn(coord); | ||
| 2064 | |||
| 2065 | // filter with group filtering and mask clipping | ||
| 2066 | |||
| 2067 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE, false, 1.0f, filter); |
| 2068 |
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1 | EXPECT_EQ(Index64(2), density->tree().activeVoxelCount()); |
| 2069 | |||
| 2070 | sphereMask->tree().setValueOff(coord); | ||
| 2071 | |||
| 2072 | // invert the mask | ||
| 2073 | |||
| 2074 | ✗ | Mask invertMask(*outputTransform, sphereMask.get(), BBoxd(), | |
| 2075 |
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1 | /*clipToFrustum=*/false, /*invert=*/true); |
| 2076 | |||
| 2077 |
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2 | Rasterizer rasterizer2(settings, invertMask); |
| 2078 |
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1 | rasterizer2.addPoints(points, /*stream=*/false); |
| 2079 | |||
| 2080 |
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2 | density = rasterizer2.rasterizeUniformDensity(RasterMode::ACCUMULATE, false, 1.0f); |
| 2081 |
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1 | EXPECT_EQ(Index64(3), density->tree().activeVoxelCount()); |
| 2082 | } | ||
| 2083 | 1 | } | |
| 2084 | |||
| 2085 |
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1 | TEST_F(TestPointRasterizeFrustum, testStreaming) |
| 2086 | { | ||
| 2087 |
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1 | Name filename("rasterpoints.vdb"); |
| 2088 | |||
| 2089 | // manually build frustum transform using camera API | ||
| 2090 | |||
| 2091 | Vec3d position(9.5, 7.8, 21.7); | ||
| 2092 | |||
| 2093 | math::NonlinearFrustumMap frustumMap( | ||
| 2094 | ✗ | /*position*/position, /*direction*/-position.unit(), /*up*/-position.unit().cross(Vec3d(0,1,0)) * 10, | |
| 2095 |
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1 | /*aspect*/0.75, /*znear*/10, /*depth*/100, /*xcount*/100, /*zcount*/400); |
| 2096 | |||
| 2097 |
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3 | math::Transform::Ptr frustum = math::Transform(frustumMap.copy()).copy(); |
| 2098 | |||
| 2099 | // build the level set sphere | ||
| 2100 | |||
| 2101 | Vec3s center(0, 0, 0); | ||
| 2102 | float radius = 10; | ||
| 2103 | float voxelSize = 0.2f; | ||
| 2104 | |||
| 2105 |
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1 | auto surface = tools::createLevelSetSphere<FloatGrid>(radius, center, voxelSize); |
| 2106 | |||
| 2107 | // scatter points inside the sphere | ||
| 2108 | |||
| 2109 |
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1 | auto points = points::denseUniformPointScatter(*surface, /*pointsPerVoxel=*/8); |
| 2110 | |||
| 2111 | // append and expand attributes, as they're uniform when created | ||
| 2112 | |||
| 2113 |
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2 | points::appendAttribute<float>(points->tree(), "density"); |
| 2114 |
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2 | points::appendAttribute<Vec3f>(points->tree(), "v"); |
| 2115 | |||
| 2116 |
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1044 | for (auto leaf = points->tree().beginLeaf(); leaf; ++leaf) { |
| 2117 |
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1043 | AttributeWriteHandle<float> densityHandle(leaf->attributeArray("density")); |
| 2118 |
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1043 | densityHandle.collapse(1.0f); |
| 2119 |
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1043 | densityHandle.expand(); |
| 2120 | |||
| 2121 |
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1043 | AttributeWriteHandle<Vec3s> velocityHandle(leaf->attributeArray("v")); |
| 2122 |
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1043 | velocityHandle.expand(); |
| 2123 | } | ||
| 2124 | |||
| 2125 | // set name and transform | ||
| 2126 | |||
| 2127 |
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1 | const math::Transform::Ptr xform = math::Transform::createLinearTransform(voxelSize); |
| 2128 | |||
| 2129 |
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2 | points->setName("points"); |
| 2130 |
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2 | points->setTransform(xform); |
| 2131 | |||
| 2132 | // write points to file | ||
| 2133 | |||
| 2134 | 1 | GridCPtrVec grids; | |
| 2135 | ✗ | grids.push_back(points); | |
| 2136 | |||
| 2137 | { | ||
| 2138 |
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2 | io::File file(filename); |
| 2139 | ✗ | file.write(grids); | |
| 2140 |
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1 | file.close(); |
| 2141 | } | ||
| 2142 | |||
| 2143 | // read points from file (using delayed loading) | ||
| 2144 | |||
| 2145 | { | ||
| 2146 |
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2 | io::File file(filename); |
| 2147 |
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1 | file.open(); |
| 2148 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2149 |
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1 | file.close(); |
| 2150 | |||
| 2151 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2152 | } | ||
| 2153 | |||
| 2154 | auto leaf = points->tree().cbeginLeaf(); | ||
| 2155 |
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1 | EXPECT_TRUE(leaf); |
| 2156 |
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1 | EXPECT_TRUE(leaf->buffer().isOutOfCore()); |
| 2157 | |||
| 2158 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 2159 | using Settings = FrustumRasterizerSettings; | ||
| 2160 | using Mask = FrustumRasterizerMask; | ||
| 2161 | |||
| 2162 |
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2 | Settings settings(*frustum); |
| 2163 | 1 | settings.velocityMotionBlur = true; | |
| 2164 |
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1 | settings.threshold = 0.0f; // disable threshold when testing streaming |
| 2165 |
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1 | Mask mask(*frustum); |
| 2166 | |||
| 2167 |
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2 | Rasterizer rasterizer(settings, mask); |
| 2168 | |||
| 2169 | // add points to rasterizer | ||
| 2170 | |||
| 2171 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2172 | |||
| 2173 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isStreaming()); |
| 2174 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2175 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isStreaming()); |
| 2176 | |||
| 2177 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isUniform()); |
| 2178 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2179 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isUniform()); |
| 2180 | |||
| 2181 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2182 |
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1 | EXPECT_EQ(Index64(74242), density->activeVoxelCount()); |
| 2183 | |||
| 2184 | // streaming is disabled, so all attributes should still be non-uniform | ||
| 2185 | |||
| 2186 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isStreaming()); |
| 2187 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2188 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isStreaming()); |
| 2189 | |||
| 2190 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isUniform()); |
| 2191 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2192 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isUniform()); |
| 2193 | |||
| 2194 | 1 | rasterizer.clear(); | |
| 2195 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2196 | |||
| 2197 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE, /*reduceMemory=*/false); |
| 2198 |
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1 | EXPECT_EQ(Index64(74242), density->activeVoxelCount()); |
| 2199 | |||
| 2200 | // streaming is enabled, but reduce memory is false, | ||
| 2201 | // so all attributes should still be non-uniform | ||
| 2202 | |||
| 2203 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isStreaming()); |
| 2204 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2205 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isStreaming()); |
| 2206 | |||
| 2207 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isUniform()); |
| 2208 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2209 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isUniform()); |
| 2210 | |||
| 2211 | // reopen file | ||
| 2212 | { | ||
| 2213 |
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2 | io::File file(filename); |
| 2214 |
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1 | file.open(); |
| 2215 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2216 |
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1 | file.close(); |
| 2217 | |||
| 2218 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2219 | } | ||
| 2220 | 1 | leaf = points->tree().cbeginLeaf(); | |
| 2221 | |||
| 2222 | 1 | rasterizer.clear(); | |
| 2223 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2224 | |||
| 2225 |
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2 | density = rasterizer.rasterizeUniformDensity(RasterMode::ACCUMULATE, /*reduceMemory=*/true); |
| 2226 |
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|
1 | EXPECT_EQ(Index64(74242), density->activeVoxelCount()); |
| 2227 | |||
| 2228 | // with streaming and reduce memory both true, position and velocity should be uniform | ||
| 2229 | |||
| 2230 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("P").isStreaming()); |
| 2231 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2232 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("v").isStreaming()); |
| 2233 | |||
| 2234 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("P").isUniform()); |
| 2235 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2236 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("v").isUniform()); |
| 2237 | |||
| 2238 | // reopen file | ||
| 2239 | { | ||
| 2240 |
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2 | io::File file(filename); |
| 2241 |
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1 | file.open(); |
| 2242 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2243 |
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1 | file.close(); |
| 2244 | |||
| 2245 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2246 | } | ||
| 2247 | 1 | leaf = points->tree().cbeginLeaf(); | |
| 2248 | |||
| 2249 | 1 | rasterizer.clear(); | |
| 2250 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2251 | |||
| 2252 | // when rasterizing density, all attributes now become uniform | ||
| 2253 | |||
| 2254 |
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2 | density = rasterizer.rasterizeDensity("density", RasterMode::ACCUMULATE, /*reduceMemory=*/true); |
| 2255 |
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1 | EXPECT_EQ(Index64(74242), density->activeVoxelCount()); |
| 2256 | |||
| 2257 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("P").isStreaming()); |
| 2258 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("density").isStreaming()); |
| 2259 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("v").isStreaming()); |
| 2260 | |||
| 2261 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("P").isUniform()); |
| 2262 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("density").isUniform()); |
| 2263 |
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|
3 | EXPECT_TRUE(leaf->constAttributeArray("v").isUniform()); |
| 2264 | |||
| 2265 | #ifndef ONLY_RASTER_FLOAT | ||
| 2266 | // reopen file | ||
| 2267 | { | ||
| 2268 |
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2 | io::File file(filename); |
| 2269 |
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1 | file.open(); |
| 2270 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2271 |
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1 | file.close(); |
| 2272 | |||
| 2273 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2274 | } | ||
| 2275 | 1 | leaf = points->tree().cbeginLeaf(); | |
| 2276 | |||
| 2277 | 1 | rasterizer.clear(); | |
| 2278 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2279 | |||
| 2280 | // now verify that rasterizing velocity then density with streaming | ||
| 2281 | // enabled completes successfully | ||
| 2282 | |||
| 2283 |
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2 | auto velocity = rasterizer.rasterizeAttribute("v", RasterMode::ACCUMULATE, /*reduceMemory=*/false); |
| 2284 |
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1 | EXPECT_EQ(Index64(74242), velocity->activeVoxelCount()); |
| 2285 | |||
| 2286 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isStreaming()); |
| 2287 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2288 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isStreaming()); |
| 2289 | |||
| 2290 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("P").isUniform()); |
| 2291 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2292 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("v").isUniform()); |
| 2293 | |||
| 2294 |
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2 | velocity = rasterizer.rasterizeAttribute("v", RasterMode::ACCUMULATE, /*reduceMemory=*/true); |
| 2295 |
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1 | EXPECT_EQ(Index64(74242), velocity->activeVoxelCount()); |
| 2296 | |||
| 2297 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("P").isStreaming()); |
| 2298 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isStreaming()); |
| 2299 |
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2 | EXPECT_TRUE(leaf->constAttributeArray("v").isStreaming()); |
| 2300 | |||
| 2301 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("P").isUniform()); |
| 2302 |
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2 | EXPECT_TRUE(!leaf->constAttributeArray("density").isUniform()); |
| 2303 |
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3 | EXPECT_TRUE(leaf->constAttributeArray("v").isUniform()); |
| 2304 | #endif | ||
| 2305 | |||
| 2306 | // reopen file | ||
| 2307 | { | ||
| 2308 |
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2 | io::File file(filename); |
| 2309 |
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1 | file.open(); |
| 2310 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2311 |
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1 | file.close(); |
| 2312 | |||
| 2313 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2314 | } | ||
| 2315 |
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1 | leaf = points->tree().cbeginLeaf(); |
| 2316 | |||
| 2317 | // copy and translate the transform | ||
| 2318 | |||
| 2319 |
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1 | auto transform = points->transform().copy(); |
| 2320 |
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|
1 | transform->preTranslate(Vec3d(0, 100, 0)); |
| 2321 | |||
| 2322 | // deep-copy the points grid and apply the new transform | ||
| 2323 | |||
| 2324 |
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1 | auto points2 = points->deepCopy(); |
| 2325 |
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|
2 | points2->setTransform(transform); |
| 2326 | |||
| 2327 | // verify both grids are out-of-core | ||
| 2328 | |||
| 2329 |
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|
1 | EXPECT_TRUE(points->tree().cbeginLeaf()->buffer().isOutOfCore()); |
| 2330 |
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|
1 | EXPECT_TRUE(points2->tree().cbeginLeaf()->buffer().isOutOfCore()); |
| 2331 | |||
| 2332 | #ifndef ONLY_RASTER_FLOAT | ||
| 2333 | // memory tests | ||
| 2334 | |||
| 2335 |
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|
1 | if (io::Archive::isDelayedLoadingEnabled() && io::Archive::hasBloscCompression()) { |
| 2336 | |||
| 2337 | 1 | FloatGrid::Ptr density1, density2, density3; | |
| 2338 | 1 | Vec3SGrid::Ptr velocity1, velocity2, velocity3; | |
| 2339 | |||
| 2340 | const size_t mb = 1024*1024; | ||
| 2341 | const size_t tinyMemory = static_cast<size_t>(0.1*mb); | ||
| 2342 | |||
| 2343 | size_t initialMemory; | ||
| 2344 | |||
| 2345 | { // memory test 1 - retain caches and streaming disabled | ||
| 2346 |
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2 | Rasterizer rasterizer(settings); |
| 2347 | |||
| 2348 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2349 |
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1 | rasterizer.addPoints(points2, /*stream=*/false); |
| 2350 | |||
| 2351 |
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1 | initialMemory = rasterizer.memUsage(); |
| 2352 | |||
| 2353 |
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1 | EXPECT_TRUE(initialMemory > size_t(4*mb) && initialMemory < size_t(16*mb)); |
| 2354 | |||
| 2355 |
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1 | EXPECT_EQ(size_t(2), rasterizer.size()); |
| 2356 | |||
| 2357 |
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1 | velocity1 = rasterizer.rasterizeAttribute<Vec3SGrid, Vec3s>("v"); |
| 2358 |
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1 | EXPECT_EQ(Index64(219780), velocity1->activeVoxelCount()); |
| 2359 | |||
| 2360 |
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|
1 | EXPECT_TRUE(rasterizer.memUsage() > size_t(71*mb) && |
| 2361 | rasterizer.memUsage() < size_t(91*mb)); | ||
| 2362 | |||
| 2363 |
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1 | density1 = rasterizer.rasterizeDensity("density"); |
| 2364 |
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|
1 | EXPECT_EQ(Index64(219780), density1->activeVoxelCount()); |
| 2365 | |||
| 2366 | // no data is discarded so expect a fairly high memory footprint | ||
| 2367 | |||
| 2368 |
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|
1 | EXPECT_TRUE(rasterizer.memUsage() > size_t(80*mb) && |
| 2369 | rasterizer.memUsage() < size_t(100*mb)); | ||
| 2370 | } | ||
| 2371 | |||
| 2372 | { // memory test 2 - retain caches and streaming enabled | ||
| 2373 | |||
| 2374 | { // reopen file and deep copy while setting transform | ||
| 2375 |
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2 | io::File file(filename); |
| 2376 |
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1 | file.open(); |
| 2377 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2378 |
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1 | file.close(); |
| 2379 | |||
| 2380 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2381 |
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2 | points2 = points->deepCopy(); |
| 2382 |
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2 | points2->setTransform(transform); |
| 2383 | } | ||
| 2384 | |||
| 2385 |
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2 | Rasterizer rasterizer(settings); |
| 2386 | |||
| 2387 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2388 |
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1 | rasterizer.addPoints(points2, /*stream=*/true); |
| 2389 | |||
| 2390 |
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1 | EXPECT_EQ(initialMemory, rasterizer.memUsage()); |
| 2391 | |||
| 2392 |
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1 | EXPECT_EQ(size_t(2), rasterizer.size()); |
| 2393 | |||
| 2394 |
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1 | velocity2 = rasterizer.rasterizeAttribute<Vec3SGrid, Vec3s>("v"); |
| 2395 |
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1 | EXPECT_EQ(Index64(219780), velocity2->activeVoxelCount()); |
| 2396 | |||
| 2397 |
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1 | size_t postRasterMemory = rasterizer.memUsage(); |
| 2398 | |||
| 2399 |
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1 | EXPECT_TRUE(postRasterMemory > size_t(70*mb) && postRasterMemory < size_t(85*mb)); |
| 2400 | |||
| 2401 |
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1 | density2 = rasterizer.rasterizeDensity("density"); |
| 2402 |
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1 | EXPECT_EQ(Index64(219780), density2->activeVoxelCount()); |
| 2403 | |||
| 2404 | // as data is being streamed, second attribute shouldn't change memory usage very much | ||
| 2405 | |||
| 2406 |
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1 | EXPECT_TRUE(rasterizer.memUsage() < (postRasterMemory + tinyMemory)); |
| 2407 | } | ||
| 2408 | |||
| 2409 | { // memory test 3 - release caches and streaming enabled | ||
| 2410 | |||
| 2411 | { // reopen file and deep copy while setting transform | ||
| 2412 |
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2 | io::File file(filename); |
| 2413 |
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1 | file.open(); |
| 2414 |
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1 | openvdb::GridBase::Ptr baseGrid = file.readGrid("points"); |
| 2415 |
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1 | file.close(); |
| 2416 | |||
| 2417 |
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1 | points = openvdb::gridPtrCast<PointDataGrid>(baseGrid); |
| 2418 |
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2 | points2 = points->deepCopy(); |
| 2419 |
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2 | points2->setTransform(transform); |
| 2420 | } | ||
| 2421 | |||
| 2422 |
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1 | auto points3 = points->deepCopy(); |
| 2423 |
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1 | auto points4 = points2->deepCopy(); |
| 2424 | |||
| 2425 |
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2 | Settings settings2(*frustum); |
| 2426 |
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1 | settings2.threshold = 0.0f; |
| 2427 | |||
| 2428 |
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1 | Mask mask2(*frustum, nullptr, BBoxd(), /*clipToFrustum=*/false); |
| 2429 | |||
| 2430 |
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2 | Rasterizer rasterizer(settings2, mask2); |
| 2431 | |||
| 2432 |
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1 | rasterizer.addPoints(points, /*stream=*/true); |
| 2433 |
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1 | rasterizer.addPoints(points2, /*stream=*/true); |
| 2434 | |||
| 2435 |
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1 | EXPECT_EQ(initialMemory, rasterizer.memUsage()); |
| 2436 |
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1 | EXPECT_EQ(size_t(2), rasterizer.size()); |
| 2437 | |||
| 2438 |
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1 | density3 = rasterizer.rasterizeDensity("density", RasterMode::ACCUMULATE, true); |
| 2439 |
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|
1 | EXPECT_EQ(Index64(219780), density3->activeVoxelCount()); |
| 2440 | |||
| 2441 | // all voxel data, attribute data and caches are being discarded, | ||
| 2442 | // so memory after rasterizing shouldn't change very much | ||
| 2443 | |||
| 2444 |
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1 | EXPECT_TRUE(rasterizer.memUsage() < (initialMemory + tinyMemory)); |
| 2445 | |||
| 2446 | // deep-copies of delay-loaded point grids need to be used for repeat rasterization | ||
| 2447 | |||
| 2448 | 1 | rasterizer.clear(); | |
| 2449 |
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1 | rasterizer.addPoints(points3, /*stream=*/true); |
| 2450 |
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1 | rasterizer.addPoints(points4, /*stream=*/true); |
| 2451 | |||
| 2452 |
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1 | EXPECT_EQ(size_t(2), rasterizer.size()); |
| 2453 | |||
| 2454 |
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1 | EXPECT_TRUE(rasterizer.memUsage() < (initialMemory + tinyMemory)); |
| 2455 | |||
| 2456 |
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1 | velocity3 = rasterizer.rasterizeAttribute<Vec3SGrid, Vec3s>("v", RasterMode::ACCUMULATE, true); |
| 2457 |
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1 | EXPECT_EQ(Index64(219780), velocity3->activeVoxelCount()); |
| 2458 | } | ||
| 2459 | } | ||
| 2460 | #endif | ||
| 2461 | |||
| 2462 | // clean up file | ||
| 2463 | 1 | remove(filename.c_str()); | |
| 2464 | 1 | } | |
| 2465 | |||
| 2466 |
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2 | TEST_F(TestPointRasterizeFrustum, testProfile) |
| 2467 | { | ||
| 2468 | using Rasterizer = FrustumRasterizer<PointDataGrid>; | ||
| 2469 | using Settings = FrustumRasterizerSettings; | ||
| 2470 | |||
| 2471 | // fill a sphere with points to use for rasterization | ||
| 2472 | |||
| 2473 | Vec3s center(0.0f, 0.0f, 25.0f); | ||
| 2474 | #ifdef PROFILE | ||
| 2475 | float radius = 40; | ||
| 2476 | #else | ||
| 2477 | float radius = 3; | ||
| 2478 | #endif | ||
| 2479 | float voxelSize = 0.1f; | ||
| 2480 | |||
| 2481 | 1 | auto surface = tools::createLevelSetSphere<FloatGrid>(radius, center, voxelSize); | |
| 2482 | |||
| 2483 | // scatter points inside the sphere | ||
| 2484 | |||
| 2485 |
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|
1 | auto referencePoints = points::denseUniformPointScatter(*surface, /*pointsPerVoxel=*/8); |
| 2486 | |||
| 2487 | #ifdef PROFILE | ||
| 2488 | std::cerr << std::endl; | ||
| 2489 | std::cerr << "---- Profiling Rasterization ----" << std::endl; | ||
| 2490 | std::cerr << "Points To Rasterize: " << points::pointCount(referencePoints->constTree()) << std::endl; | ||
| 2491 | #endif | ||
| 2492 | |||
| 2493 |
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|
1 | math::Transform::Ptr linearTransform = math::Transform::createLinearTransform(voxelSize); |
| 2494 | |||
| 2495 | Mat4d mat4( 100.0, 0.0, 0.0, 0.0, | ||
| 2496 | 0.0, 100.0, 0.0, 0.0, | ||
| 2497 | 0.0, 0.0, 100.0, 0.0, | ||
| 2498 | 0.0, 0.0, -0.5, 1.0); | ||
| 2499 |
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|
1 | math::AffineMap affineMap(mat4); |
| 2500 | |||
| 2501 | 1 | BBoxd frustumBBox(Vec3d(-0.5,-0.5,-0.5), Vec3d(999.5, 999.5, 999.5)); | |
| 2502 | |||
| 2503 | math::NonlinearFrustumMap nonLinearFrustumMap( | ||
| 2504 |
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1 | frustumBBox, /*taper=*/0.5, /*depth=*/1.0, /*affineMap=*/affineMap.copy()); |
| 2505 | |||
| 2506 |
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|
3 | math::Transform::Ptr frustumTransform(math::Transform(nonLinearFrustumMap.copy()).copy()); |
| 2507 | |||
| 2508 | { // point rasterize, linear transform | ||
| 2509 |
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|
1 | auto points = referencePoints->deepCopy(); |
| 2510 | |||
| 2511 |
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|
2 | Settings settings(*linearTransform); |
| 2512 |
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2 | Rasterizer rasterizer(settings); |
| 2513 |
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|
1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2514 | |||
| 2515 | #ifdef PROFILE | ||
| 2516 | openvdb::util::CpuTimer timer("Point Rasterize, Linear Transform"); | ||
| 2517 | #endif | ||
| 2518 | |||
| 2519 |
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|
1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2520 |
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|
1 | EXPECT_TRUE(density); |
| 2521 | |||
| 2522 | #ifdef PROFILE | ||
| 2523 | timer.stop(); | ||
| 2524 | |||
| 2525 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2526 | #endif | ||
| 2527 | } | ||
| 2528 | |||
| 2529 | { // point rasterize, frustum transform | ||
| 2530 |
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|
1 | auto points = referencePoints->deepCopy(); |
| 2531 | |||
| 2532 |
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|
2 | Settings settings(*frustumTransform); |
| 2533 |
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2 | Rasterizer rasterizer(settings); |
| 2534 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2535 | |||
| 2536 | #ifdef PROFILE | ||
| 2537 | openvdb::util::CpuTimer timer("Point Rasterize, Frustum Transform"); | ||
| 2538 | #endif | ||
| 2539 | |||
| 2540 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2541 |
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|
1 | EXPECT_TRUE(density); |
| 2542 | |||
| 2543 | #ifdef PROFILE | ||
| 2544 | timer.stop(); | ||
| 2545 | |||
| 2546 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2547 | #endif | ||
| 2548 | } | ||
| 2549 | |||
| 2550 | { // point rasterize, linear transform, low velocity | ||
| 2551 |
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1 | auto points = referencePoints->deepCopy(); |
| 2552 | |||
| 2553 |
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2 | points::appendAttribute<Vec3s>(points->tree(), "v", Vec3s(0.0f, 0.0001f, 0.0f)); |
| 2554 | |||
| 2555 |
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|
2 | Settings settings(*linearTransform); |
| 2556 | 1 | settings.velocityMotionBlur = true; | |
| 2557 |
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|
2 | Rasterizer rasterizer(settings); |
| 2558 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2559 | |||
| 2560 | #ifdef PROFILE | ||
| 2561 | openvdb::util::CpuTimer timer("Point Rasterize, Linear Transform, Low Velocity"); | ||
| 2562 | #endif | ||
| 2563 | |||
| 2564 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2565 |
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|
1 | EXPECT_TRUE(density); |
| 2566 | |||
| 2567 | #ifdef PROFILE | ||
| 2568 | timer.stop(); | ||
| 2569 | |||
| 2570 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2571 | #endif | ||
| 2572 | } | ||
| 2573 | |||
| 2574 | { // point rasterize, linear transform, high velocity | ||
| 2575 |
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1 | auto points = referencePoints->deepCopy(); |
| 2576 | |||
| 2577 |
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2 | points::appendAttribute<Vec3s>(points->tree(), "v", Vec3s(0.0f, 1.0f, 0.0f)); |
| 2578 | |||
| 2579 |
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2 | Settings settings(*linearTransform); |
| 2580 | 1 | settings.velocityMotionBlur = true; | |
| 2581 |
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|
2 | Rasterizer rasterizer(settings); |
| 2582 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2583 | |||
| 2584 |
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|
1 | std::this_thread::sleep_for(std::chrono::milliseconds(500)); |
| 2585 | |||
| 2586 | #ifdef PROFILE | ||
| 2587 | openvdb::util::CpuTimer timer("Point Rasterize, Linear Transform, High Velocity"); | ||
| 2588 | #endif | ||
| 2589 | |||
| 2590 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2591 |
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|
1 | EXPECT_TRUE(density); |
| 2592 | |||
| 2593 | #ifdef PROFILE | ||
| 2594 | timer.stop(); | ||
| 2595 | |||
| 2596 | std::this_thread::sleep_for(std::chrono::milliseconds(500)); | ||
| 2597 | |||
| 2598 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2599 | #endif | ||
| 2600 | } | ||
| 2601 | |||
| 2602 | { // point rasterize, frustum transform | ||
| 2603 |
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1 | auto points = referencePoints->deepCopy(); |
| 2604 | |||
| 2605 |
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2 | points::appendAttribute<Vec3s>(points->tree(), "v", Vec3s(0.0f, 1.0f, 0.0f)); |
| 2606 | |||
| 2607 |
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2 | Settings settings(*frustumTransform); |
| 2608 | 1 | settings.velocityMotionBlur = true; | |
| 2609 |
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2 | Rasterizer rasterizer(settings); |
| 2610 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2611 | |||
| 2612 | #ifdef PROFILE | ||
| 2613 | openvdb::util::CpuTimer timer("Point Rasterize, Frustum Transform, High Velocity"); | ||
| 2614 | #endif | ||
| 2615 | |||
| 2616 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2617 |
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|
1 | EXPECT_TRUE(density); |
| 2618 | |||
| 2619 | #ifdef PROFILE | ||
| 2620 | timer.stop(); | ||
| 2621 | |||
| 2622 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2623 | #endif | ||
| 2624 | } | ||
| 2625 | |||
| 2626 | { // sphere rasterize, frustum transform, approximate algorithm | ||
| 2627 |
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1 | auto points = referencePoints->deepCopy(); |
| 2628 | |||
| 2629 |
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2 | points::appendAttribute<float>(points->tree(), "pscale", 0.25f); |
| 2630 | |||
| 2631 |
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|
2 | Settings settings(*linearTransform); |
| 2632 | 1 | settings.useRadius = true; | |
| 2633 |
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2 | Rasterizer rasterizer(settings); |
| 2634 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2635 | |||
| 2636 | #ifdef PROFILE | ||
| 2637 | openvdb::util::CpuTimer timer("Sphere Rasterize, Linear Transform"); | ||
| 2638 | #endif | ||
| 2639 | |||
| 2640 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2641 |
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|
1 | EXPECT_TRUE(density); |
| 2642 | |||
| 2643 | #ifdef PROFILE | ||
| 2644 | timer.stop(); | ||
| 2645 | |||
| 2646 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2647 | #endif | ||
| 2648 | } | ||
| 2649 | |||
| 2650 | { // sphere rasterize, frustum transform, approximate algorithm | ||
| 2651 |
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|
1 | auto points = referencePoints->deepCopy(); |
| 2652 | |||
| 2653 |
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2 | points::appendAttribute<float>(points->tree(), "pscale", 0.25f); |
| 2654 | |||
| 2655 |
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2 | Settings settings(*frustumTransform); |
| 2656 | 1 | settings.useRadius = true; | |
| 2657 |
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|
2 | Rasterizer rasterizer(settings); |
| 2658 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2659 | |||
| 2660 | #ifdef PROFILE | ||
| 2661 | openvdb::util::CpuTimer timer("Sphere Rasterize, Frustum Transform, Approximate"); | ||
| 2662 | #endif | ||
| 2663 | |||
| 2664 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2665 |
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|
1 | EXPECT_TRUE(density); |
| 2666 | |||
| 2667 | #ifdef PROFILE | ||
| 2668 | timer.stop(); | ||
| 2669 | |||
| 2670 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2671 | #endif | ||
| 2672 | } | ||
| 2673 | |||
| 2674 | { // sphere rasterize, frustum transform, high velocity, approximate algorithm | ||
| 2675 |
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1 | auto points = referencePoints->deepCopy(); |
| 2676 | |||
| 2677 |
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1 | points::appendAttribute<Vec3s>(points->tree(), "v", Vec3s(0.0f, 1.0f, 0.0f)); |
| 2678 |
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2 | points::appendAttribute<float>(points->tree(), "pscale", 0.25f); |
| 2679 | |||
| 2680 |
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2 | Settings settings(*frustumTransform); |
| 2681 | 1 | settings.velocityMotionBlur = true; | |
| 2682 | 1 | settings.useRadius = true; | |
| 2683 |
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|
2 | Rasterizer rasterizer(settings); |
| 2684 |
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1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2685 | |||
| 2686 |
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|
1 | std::this_thread::sleep_for(std::chrono::milliseconds(500)); |
| 2687 | |||
| 2688 | #ifdef PROFILE | ||
| 2689 | openvdb::util::CpuTimer timer("Sphere Rasterize, Frustum Transform, High Velocity, Approximate"); | ||
| 2690 | #endif | ||
| 2691 | |||
| 2692 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2693 |
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|
1 | EXPECT_TRUE(density); |
| 2694 | |||
| 2695 | #ifdef PROFILE | ||
| 2696 | timer.stop(); | ||
| 2697 | |||
| 2698 | std::this_thread::sleep_for(std::chrono::milliseconds(500)); | ||
| 2699 | |||
| 2700 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2701 | #endif | ||
| 2702 | } | ||
| 2703 | |||
| 2704 | { // sphere rasterize, frustum transform, high velocity, accurate algorithm with motion samples | ||
| 2705 |
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|
1 | auto points = referencePoints->deepCopy(); |
| 2706 | |||
| 2707 |
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1 | points::appendAttribute<Vec3s>(points->tree(), "v", Vec3s(0.0f, 1.0f, 0.0f)); |
| 2708 |
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2 | points::appendAttribute<float>(points->tree(), "pscale", 0.25f); |
| 2709 | |||
| 2710 |
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|
2 | Settings settings(*frustumTransform); |
| 2711 | 1 | settings.velocityMotionBlur = true; | |
| 2712 | 1 | settings.useRadius = true; | |
| 2713 | 1 | settings.accurateFrustumRadius = true; | |
| 2714 | 1 | settings.motionSamples = 10; | |
| 2715 |
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|
2 | Rasterizer rasterizer(settings); |
| 2716 |
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|
1 | rasterizer.addPoints(points, /*stream=*/false); |
| 2717 | |||
| 2718 | #ifdef PROFILE | ||
| 2719 | openvdb::util::CpuTimer timer("Sphere Rasterize, Frustum Transform, High Velocity, Accurate"); | ||
| 2720 | #endif | ||
| 2721 | |||
| 2722 |
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1 | auto density = rasterizer.rasterizeUniformDensity(); |
| 2723 |
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|
1 | EXPECT_TRUE(density); |
| 2724 | |||
| 2725 | #ifdef PROFILE | ||
| 2726 | timer.stop(); | ||
| 2727 | |||
| 2728 | std::cerr << "Voxel Count: " << density->tree().activeVoxelCount() << std::endl; | ||
| 2729 | #endif | ||
| 2730 | } | ||
| 2731 | |||
| 2732 | #ifdef PROFILE | ||
| 2733 | std::cerr << "----------------------------------" << std::endl; | ||
| 2734 | std::cerr << std::endl; | ||
| 2735 | #endif | ||
| 2736 | 1 | } | |
| 2737 |