mesh_topology_test.cc

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/* SPDX-FileCopyrightText: 2020 Blender Foundation
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * Author: Sergey Sharybin. */
 
#include "internal/topology/mesh_topology.h"
#include "testing/testing.h"
 
namespace blender::opensubdiv {
 
TEST(MeshTopology, TrivialVertexSharpness)
{
  MeshTopology mesh_topology;
 
  mesh_topology.setNumVertices(3);
  mesh_topology.finishResizeTopology();
 
  mesh_topology.setVertexSharpness(0, 0.1f);
  mesh_topology.setVertexSharpness(1, 0.2f);
 
  EXPECT_EQ(mesh_topology.getVertexSharpness(0), 0.1f);
  EXPECT_EQ(mesh_topology.getVertexSharpness(1), 0.2f);
  EXPECT_EQ(mesh_topology.getVertexSharpness(2), 0.0f);
}
 
TEST(MeshTopology, TrivialEdgeSharpness)
{
  MeshTopology mesh_topology;
 
  mesh_topology.setNumVertices(8);
  mesh_topology.setNumEdges(3);
  mesh_topology.finishResizeTopology();
 
  mesh_topology.setEdgeVertexIndices(0, 0, 1);
  mesh_topology.setEdgeVertexIndices(1, 1, 2);
  mesh_topology.setEdgeVertexIndices(2, 2, 3);
 
  mesh_topology.setEdgeSharpness(0, 0.1f);
  mesh_topology.setEdgeSharpness(2, 0.2f);
 
  EXPECT_EQ(mesh_topology.getEdgeSharpness(0), 0.1f);
  EXPECT_EQ(mesh_topology.getEdgeSharpness(1), 0.0f);
  EXPECT_EQ(mesh_topology.getEdgeSharpness(2), 0.2f);
}
 
TEST(MeshTopology, TrivialFaceTopology)
{
  MeshTopology mesh_topology;
 
  mesh_topology.setNumFaces(3);
  mesh_topology.setNumFaceVertices(0, 4);
  mesh_topology.setNumFaceVertices(1, 3);
  mesh_topology.setNumFaceVertices(2, 5);
  mesh_topology.finishResizeTopology();
 
  EXPECT_EQ(mesh_topology.getNumFaceVertices(0), 4);
  EXPECT_EQ(mesh_topology.getNumFaceVertices(1), 3);
  EXPECT_EQ(mesh_topology.getNumFaceVertices(2), 5);
 
  {
    const int vertex_indices[] = {0, 1, 2, 3};
    mesh_topology.setFaceVertexIndices(0, 4, vertex_indices);
  }
 
  {
    const int vertex_indices[] = {4, 5, 6};
    mesh_topology.setFaceVertexIndices(1, 3, vertex_indices);
  }
 
  {
    const int vertex_indices[] = {7, 8, 9, 10, 11};
    mesh_topology.setFaceVertexIndices(2, 5, vertex_indices);
  }
 
  EXPECT_TRUE(mesh_topology.isFaceVertexIndicesEqual(0, {{0, 1, 2, 3}}));
  EXPECT_FALSE(mesh_topology.isFaceVertexIndicesEqual(0, {{10, 1, 2, 3}}));
  EXPECT_FALSE(mesh_topology.isFaceVertexIndicesEqual(0, {{0, 1, 2}}));
 
  EXPECT_TRUE(mesh_topology.isFaceVertexIndicesEqual(1, {{4, 5, 6}}));
  EXPECT_TRUE(mesh_topology.isFaceVertexIndicesEqual(2, {{7, 8, 9, 10, 11}}));
}
 
}  // namespace blender::opensubdiv