From 1d3df8a8de13157d1368350ab40846c3f1d769cf Mon Sep 17 00:00:00 2001 From: Frank Galligan Date: Fri, 13 Jan 2017 16:20:12 -0800 Subject: [PATCH] Add triangle_soup_mesh_builder_test to draco_tests --- CMakeLists.txt | 1 + mesh/triangle_soup_mesh_builder_test.cc | 197 ++++++++++++++++++++++++ 2 files changed, 198 insertions(+) create mode 100644 mesh/triangle_soup_mesh_builder_test.cc diff --git a/CMakeLists.txt b/CMakeLists.txt index e690ea9..559d6d0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -385,6 +385,7 @@ set(draco_test_sources "${draco_root}/io/point_cloud_io_test.cc" "${draco_root}/mesh/mesh_cleanup_test.cc" "${draco_root}/mesh/mesh_test.cc" + "${draco_root}/mesh/triangle_soup_mesh_builder_test.cc" "${draco_root}/point_cloud/point_cloud_builder_test.cc") set(draco_version_sources diff --git a/mesh/triangle_soup_mesh_builder_test.cc b/mesh/triangle_soup_mesh_builder_test.cc new file mode 100644 index 0000000..f3d6326 --- /dev/null +++ b/mesh/triangle_soup_mesh_builder_test.cc @@ -0,0 +1,197 @@ +// Copyright 2016 The Draco Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +#include "mesh/triangle_soup_mesh_builder.h" + +#include "core/draco_test_base.h" +#include "core/vector_d.h" + +namespace draco { + +class TriangleSoupMeshBuilderTest : public ::testing::Test {}; + +TEST_F(TriangleSoupMeshBuilderTest, CubeTest) { + // This tests, verifies that the mesh builder constructs a valid cube out + // of the provided triangle soup data. + TriangleSoupMeshBuilder mb; + mb.Start(12); + const int pos_att_id = + mb.AddAttribute(GeometryAttribute::POSITION, 3, DT_FLOAT32); + // clang-format off + // Front face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(0), + Vector3f(0.f, 0.f, 0.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 1.f, 0.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(1), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(1.f, 1.f, 0.f).data()); + + // Back face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(2), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(0.f, 0.f, 1.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(3), + Vector3f(1.f, 1.f, 1.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(0.f, 1.f, 1.f).data()); + + // Top face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(4), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(0.f, 1.f, 1.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(5), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(1.f, 1.f, 1.f).data()); + + // Bottom face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(6), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 0.f, 0.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(7), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 0.f, 1.f).data()); + + // Right face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(8), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 1.f, 0.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(9), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 1.f, 1.f).data()); + + // Left face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(10), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(0.f, 0.f, 0.f).data()); + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(11), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(0.f, 1.f, 0.f).data()); + // clang-format on + + std::unique_ptr mesh = mb.Finalize(); + ASSERT_NE(mesh, nullptr) << "Failed to build the cube mesh."; + EXPECT_EQ(mesh->num_points(), 8) << "Unexpected number of vertices."; + EXPECT_EQ(mesh->num_faces(), 12) << "Unexpected number of faces."; +} + +TEST_F(TriangleSoupMeshBuilderTest, TestPerFaceAttribs) { + // This tests, verifies that the mesh builder constructs a valid cube with + // per face boolean attributes. + TriangleSoupMeshBuilder mb; + mb.Start(12); + const int pos_att_id = + mb.AddAttribute(GeometryAttribute::POSITION, 3, DT_FLOAT32); + const int gen_att_id = + mb.AddAttribute(GeometryAttribute::GENERIC, 1, DT_BOOL); + uint8_t bool_true = 1; + uint8_t bool_false = 0; + // clang-format off + // Front face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(0), + Vector3f(0.f, 0.f, 0.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 1.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(0), &bool_false); + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(1), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(1.f, 1.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(1), &bool_true); + + // Back face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(2), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(0.f, 0.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(2), &bool_true); + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(3), + Vector3f(1.f, 1.f, 1.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(0.f, 1.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(3), &bool_true); + + // Top face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(4), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(0.f, 1.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(4), &bool_false);; + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(5), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(1.f, 1.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(5), &bool_false); + + // Bottom face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(6), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 0.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(6), &bool_true); + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(7), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(0.f, 0.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(7), &bool_true); + + // Right face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(8), + Vector3f(1.f, 0.f, 0.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 1.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(8), &bool_false); + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(9), + Vector3f(1.f, 1.f, 0.f).data(), + Vector3f(1.f, 0.f, 1.f).data(), + Vector3f(1.f, 1.f, 1.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(9), &bool_true); + + // Left face. + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(10), + Vector3f(0.f, 1.f, 0.f).data(), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(0.f, 0.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(10), &bool_true); + + mb.SetAttributeValuesForFace(pos_att_id, FaceIndex(11), + Vector3f(0.f, 1.f, 1.f).data(), + Vector3f(0.f, 0.f, 1.f).data(), + Vector3f(0.f, 1.f, 0.f).data()); + mb.SetPerFaceAttributeValueForFace(gen_att_id, FaceIndex(11), &bool_false); + // clang-format on + + std::unique_ptr mesh = mb.Finalize(); + ASSERT_NE(mesh, nullptr) << "Failed to build the cube mesh."; + EXPECT_EQ(mesh->num_faces(), 12) << "Unexpected number of faces."; + EXPECT_EQ(mesh->GetAttributeElementType(gen_att_id), MESH_FACE_ATTRIBUTE) + << "Unexpected attribute element type."; +} + +} // namespace draco