draco/io/obj_decoder_test.cc
Ondrej Stava c7a5e903e5 1. Added support for loading quad meshes from .obj files
2. Fixed bug in javascript decoders that caused them to fail when
loading large geometries
2017-03-21 16:06:58 -07:00

93 lines
3.2 KiB
C++

// 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 <sstream>
#include "core/draco_test_base.h"
#include "core/draco_test_utils.h"
#include "io/obj_decoder.h"
namespace draco {
class ObjDecoderTest : public ::testing::Test {
protected:
template <class Geometry>
std::unique_ptr<Geometry> DecodeObj(const std::string &file_name) const {
const std::string path = GetTestFileFullPath(file_name);
ObjDecoder decoder;
std::unique_ptr<Geometry> geometry(new Geometry());
if (!decoder.DecodeFromFile(path, geometry.get()))
return nullptr;
return geometry;
}
void test_decoding(const std::string &file_name) {
const std::unique_ptr<Mesh> mesh(DecodeObj<Mesh>(file_name));
ASSERT_NE(mesh, nullptr) << "Failed to load test model " << file_name;
ASSERT_GT(mesh->num_faces(), 0);
const std::unique_ptr<PointCloud> pc(DecodeObj<PointCloud>(file_name));
ASSERT_NE(pc, nullptr) << "Failed to load test model " << file_name;
ASSERT_GT(pc->num_points(), 0u);
}
};
TEST_F(ObjDecoderTest, ExtraVertexOBJ) {
const std::string file_name = "extra_vertex.obj";
test_decoding(file_name);
}
TEST_F(ObjDecoderTest, ParialAttributesOBJ) {
const std::string file_name = "cube_att_partial.obj";
test_decoding(file_name);
}
TEST_F(ObjDecoderTest, SubObjects) {
// Tests loading an Obj with sub objects.
const std::string file_name = "cube_att_sub_o.obj";
const std::unique_ptr<Mesh> mesh(DecodeObj<Mesh>(file_name));
ASSERT_NE(mesh, nullptr) << "Failed to load test model " << file_name;
ASSERT_GT(mesh->num_faces(), 0);
// A sub object attribute should be the fourth attribute of the mesh (in this
// case).
ASSERT_EQ(mesh->num_attributes(), 4);
ASSERT_EQ(mesh->attribute(3)->attribute_type(), GeometryAttribute::GENERIC);
// There should be 3 different sub objects used in the model.
ASSERT_EQ(mesh->attribute(3)->size(), 3);
// Verify that the sub object attribute has custom id == 1.
ASSERT_EQ(mesh->attribute(3)->custom_id(), 1);
}
TEST_F(ObjDecoderTest, QuadOBJ) {
// Tests loading an Obj with quad faces.
const std::string file_name = "cube_quads.obj";
const std::unique_ptr<Mesh> mesh(DecodeObj<Mesh>(file_name));
ASSERT_NE(mesh, nullptr) << "Failed to load test model " << file_name;
ASSERT_EQ(mesh->num_faces(), 12);
ASSERT_EQ(mesh->num_attributes(), 3);
ASSERT_EQ(mesh->num_points(), 4 * 6); // Four points per quad face.
}
TEST_F(ObjDecoderTest, ComplexPolyOBJ) {
// Tests that we fail to load an obj with complex polygon (expected failure).
const std::string file_name = "complex_poly.obj";
const std::unique_ptr<Mesh> mesh(DecodeObj<Mesh>(file_name));
ASSERT_EQ(mesh, nullptr);
}
} // namespace draco