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Diffstat (limited to 'source/blender/blenlib/tests/BLI_mesh_boolean_test.cc')
| -rw-r--r-- | source/blender/blenlib/tests/BLI_mesh_boolean_test.cc | 910 |
1 files changed, 910 insertions, 0 deletions
diff --git a/source/blender/blenlib/tests/BLI_mesh_boolean_test.cc b/source/blender/blenlib/tests/BLI_mesh_boolean_test.cc new file mode 100644 index 00000000000..b212ddb8e63 --- /dev/null +++ b/source/blender/blenlib/tests/BLI_mesh_boolean_test.cc @@ -0,0 +1,910 @@ +/* Apache License, Version 2.0 */ + +#include "testing/testing.h" + +#include <fstream> +#include <iostream> +#include <sstream> + +#include "MEM_guardedalloc.h" + +#include "BLI_array.hh" +#include "BLI_map.hh" +#include "BLI_math_mpq.hh" +#include "BLI_mesh_boolean.hh" +#include "BLI_mpq3.hh" +#include "BLI_vector.hh" + +#ifdef WITH_GMP +namespace blender::meshintersect::tests { + +constexpr bool DO_OBJ = false; + +/* Build and hold an IMesh from a string spec. Also hold and own resources used by IMesh. */ +class IMeshBuilder { + public: + IMesh imesh; + IMeshArena arena; + + /* "Edge orig" indices are an encoding of <input face#, position in face of start of edge>. */ + static constexpr int MAX_FACE_LEN = 1000; /* Used for forming "orig edge" indices only. */ + + static int edge_index(int face_index, int facepos) + { + return face_index * MAX_FACE_LEN + facepos; + } + + static std::pair<int, int> face_and_pos_for_edge_index(int e_index) + { + return std::pair<int, int>(e_index / MAX_FACE_LEN, e_index % MAX_FACE_LEN); + } + + /* + * Spec should have form: + * #verts #faces + * mpq_class mpq_class mpq_clas [#verts lines] + * int int int ... [#faces lines; indices into verts for given face] + */ + IMeshBuilder(const char *spec) + { + std::istringstream ss(spec); + std::string line; + getline(ss, line); + std::istringstream hdrss(line); + int nv, nf; + hdrss >> nv >> nf; + if (nv == 0 || nf == 0) { + return; + } + arena.reserve(nv, nf); + Vector<const Vert *> verts; + Vector<Face *> faces; + bool spec_ok = true; + int v_index = 0; + while (v_index < nv && spec_ok && getline(ss, line)) { + std::istringstream iss(line); + mpq_class p0; + mpq_class p1; + mpq_class p2; + iss >> p0 >> p1 >> p2; + spec_ok = !iss.fail(); + verts.append(arena.add_or_find_vert(mpq3(p0, p1, p2), v_index)); + ++v_index; + } + if (v_index != nv) { + spec_ok = false; + } + int f_index = 0; + while (f_index < nf && spec_ok && getline(ss, line)) { + std::istringstream fss(line); + Vector<const Vert *> face_verts; + Vector<int> edge_orig; + int fpos = 0; + while (spec_ok && fss >> v_index) { + if (v_index < 0 || v_index >= nv) { + spec_ok = false; + continue; + } + face_verts.append(verts[v_index]); + edge_orig.append(edge_index(f_index, fpos)); + ++fpos; + } + Face *facep = arena.add_face(face_verts, f_index, edge_orig); + faces.append(facep); + ++f_index; + } + if (f_index != nf) { + spec_ok = false; + } + if (!spec_ok) { + std::cout << "Bad spec: " << spec; + return; + } + imesh = IMesh(faces); + } +}; + +static int all_shape_zero(int UNUSED(t)) +{ + return 0; +} + +TEST(boolean_trimesh, Empty) +{ + IMeshArena arena; + IMesh in; + IMesh out = boolean_trimesh(in, BoolOpType::None, 1, all_shape_zero, true, &arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 0); + EXPECT_EQ(out.face_size(), 0); +} + +TEST(boolean_trimesh, TetTetTrimesh) +{ + const char *spec = R"(8 8 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + 0 0 1 + 2 0 1 + 1 2 1 + 1 1 3 + 0 2 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::None, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 11); + EXPECT_EQ(out.face_size(), 20); + if (DO_OBJ) { + write_obj_mesh(out, "tettet_tm"); + } + + IMeshBuilder mb2(spec); + IMesh out2 = boolean_trimesh(mb2.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb2.arena); + out2.populate_vert(); + EXPECT_EQ(out2.vert_size(), 10); + EXPECT_EQ(out2.face_size(), 16); + if (DO_OBJ) { + write_obj_mesh(out2, "tettet_union_tm"); + } + + IMeshBuilder mb3(spec); + IMesh out3 = boolean_trimesh( + mb3.imesh, BoolOpType::Union, 2, [](int t) { return t < 4 ? 0 : 1; }, false, &mb3.arena); + out3.populate_vert(); + EXPECT_EQ(out3.vert_size(), 10); + EXPECT_EQ(out3.face_size(), 16); + if (DO_OBJ) { + write_obj_mesh(out3, "tettet_union_binary_tm"); + } + + IMeshBuilder mb4(spec); + IMesh out4 = boolean_trimesh( + mb4.imesh, BoolOpType::Union, 2, [](int t) { return t < 4 ? 0 : 1; }, true, &mb4.arena); + out4.populate_vert(); + EXPECT_EQ(out4.vert_size(), 10); + EXPECT_EQ(out4.face_size(), 16); + if (DO_OBJ) { + write_obj_mesh(out4, "tettet_union_binary_self_tm"); + } + + IMeshBuilder mb5(spec); + IMesh out5 = boolean_trimesh( + mb5.imesh, BoolOpType::Intersect, 2, [](int t) { return t < 4 ? 0 : 1; }, false, &mb5.arena); + out5.populate_vert(); + EXPECT_EQ(out5.vert_size(), 4); + EXPECT_EQ(out5.face_size(), 4); + if (DO_OBJ) { + write_obj_mesh(out5, "tettet_intersect_binary_tm"); + } + + IMeshBuilder mb6(spec); + IMesh out6 = boolean_trimesh( + mb6.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 4 ? 0 : 1; }, + false, + &mb6.arena); + out6.populate_vert(); + EXPECT_EQ(out6.vert_size(), 6); + EXPECT_EQ(out6.face_size(), 8); + if (DO_OBJ) { + write_obj_mesh(out6, "tettet_difference_binary_tm"); + } + + IMeshBuilder mb7(spec); + IMesh out7 = boolean_trimesh( + mb7.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 4 ? 1 : 0; }, + false, + &mb7.arena); + out7.populate_vert(); + EXPECT_EQ(out7.vert_size(), 8); + EXPECT_EQ(out7.face_size(), 12); + if (DO_OBJ) { + write_obj_mesh(out7, "tettet_difference_rev_binary_tm"); + } +} + +TEST(boolean_trimesh, TetTet2Trimesh) +{ + const char *spec = R"(8 8 + 0 1 -1 + 7/8 -1/2 -1 + -7/8 -1/2 -1 + 0 0 1 + 0 1 0 + 7/8 -1/2 0 + -7/8 -1/2 0 + 0 0 2 + 0 3 1 + 0 1 2 + 1 3 2 + 2 3 0 + 4 7 5 + 4 5 6 + 5 7 6 + 6 7 4 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 10); + EXPECT_EQ(out.face_size(), 16); + if (DO_OBJ) { + write_obj_mesh(out, "tettet2_union_tm"); + } +} + +TEST(boolean_trimesh, CubeTetTrimesh) +{ + const char *spec = R"(12 16 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 0 1/2 1/2 + 1/2 -1/4 1/2 + -1/2 -1/4 1/2 + 0 0 3/2 + 0 1 3 + 0 3 2 + 2 3 7 + 2 7 6 + 6 7 5 + 6 5 4 + 4 5 1 + 4 1 0 + 2 6 4 + 2 4 0 + 7 3 1 + 7 1 5 + 8 11 9 + 8 9 10 + 9 11 10 + 10 11 8 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 14); + EXPECT_EQ(out.face_size(), 24); + if (DO_OBJ) { + write_obj_mesh(out, "cubetet_union_tm"); + } +} + +TEST(boolean_trimesh, BinaryTetTetTrimesh) +{ + const char *spec = R"(8 8 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + 0 0 1 + 2 0 1 + 1 2 1 + 1 1 3 + 0 2 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh( + mb.imesh, BoolOpType::Intersect, 2, [](int t) { return t < 4 ? 0 : 1; }, false, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 4); + EXPECT_EQ(out.face_size(), 4); + if (DO_OBJ) { + write_obj_mesh(out, "binary_tettet_isect_tm"); + } +} + +TEST(boolean_trimesh, TetTetCoplanarTrimesh) +{ + const char *spec = R"(8 8 + 0 1 0 + 7/8 -1/2 0 + -7/8 -1/2 0 + 0 0 1 + 0 1 0 + 7/8 -1/2 0 + -7/8 -1/2 0 + 0 0 -1 + 0 3 1 + 0 1 2 + 1 3 2 + 2 3 0 + 4 5 7 + 4 6 5 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 5); + EXPECT_EQ(out.face_size(), 6); + if (DO_OBJ) { + write_obj_mesh(out, "tettet_coplanar_tm"); + } +} + +TEST(boolean_trimesh, TetInsideTetTrimesh) +{ + const char *spec = R"(8 8 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + -1 -3/4 -1/2 + 3 -3/4 -1/2 + 1 13/4 -1/2 + 1 5/4 7/2 + 0 2 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 4); + EXPECT_EQ(out.face_size(), 4); + if (DO_OBJ) { + write_obj_mesh(out, "tetinsidetet_tm"); + } +} + +TEST(boolean_trimesh, TetBesideTetTrimesh) +{ + const char *spec = R"(8 8 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + 3 0 0 + 5 0 0 + 4 2 0 + 4 1 2 + 0 2 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh(mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 8); + EXPECT_EQ(out.face_size(), 8); + if (DO_OBJ) { + write_obj_mesh(out, "tetbesidetet_tm"); + } +} + +TEST(boolean_trimesh, DegenerateTris) +{ + const char *spec = R"(10 10 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + 0 0 1 + 2 0 1 + 1 2 1 + 1 1 3 + 0 0 0 + 1 0 0 + 0 2 1 + 0 8 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + 0 1 9 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_trimesh( + mb.imesh, BoolOpType::Intersect, 2, [](int t) { return t < 5 ? 0 : 1; }, false, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 4); + EXPECT_EQ(out.face_size(), 4); + if (DO_OBJ) { + write_obj_mesh(out, "degenerate_tris_tm"); + } +} + +TEST(boolean_polymesh, TetTet) +{ + const char *spec = R"(8 8 + 0 0 0 + 2 0 0 + 1 2 0 + 1 1 2 + 0 0 1 + 2 0 1 + 1 2 1 + 1 1 3 + 0 2 1 + 0 1 3 + 1 2 3 + 2 0 3 + 4 6 5 + 4 5 7 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, BoolOpType::None, 1, all_shape_zero, true, nullptr, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 11); + EXPECT_EQ(out.face_size(), 13); + if (DO_OBJ) { + write_obj_mesh(out, "tettet"); + } + + IMeshBuilder mb2(spec); + IMesh out2 = boolean_mesh( + mb2.imesh, + BoolOpType::None, + 2, + [](int t) { return t < 4 ? 0 : 1; }, + false, + nullptr, + &mb2.arena); + out2.populate_vert(); + EXPECT_EQ(out2.vert_size(), 11); + EXPECT_EQ(out2.face_size(), 13); + if (DO_OBJ) { + write_obj_mesh(out, "tettet2"); + } +} + +TEST(boolean_polymesh, CubeCube) +{ + const char *spec = R"(16 12 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 1/2 1/2 1/2 + 1/2 1/2 5/2 + 1/2 5/2 1/2 + 1/2 5/2 5/2 + 5/2 1/2 1/2 + 5/2 1/2 5/2 + 5/2 5/2 1/2 + 5/2 5/2 5/2 + 0 1 3 2 + 6 2 3 7 + 4 6 7 5 + 0 4 5 1 + 0 2 6 4 + 3 1 5 7 + 8 9 11 10 + 14 10 11 15 + 12 14 15 13 + 8 12 13 9 + 8 10 14 12 + 11 9 13 15 + )"; + + IMeshBuilder mb(spec); + if (DO_OBJ) { + write_obj_mesh(mb.imesh, "cube_cube_in"); + } + IMesh out = boolean_mesh( + mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, nullptr, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 20); + EXPECT_EQ(out.face_size(), 12); + if (DO_OBJ) { + write_obj_mesh(out, "cubecube_union"); + } + + IMeshBuilder mb2(spec); + IMesh out2 = boolean_mesh( + mb2.imesh, + BoolOpType::None, + 2, + [](int t) { return t < 6 ? 0 : 1; }, + false, + nullptr, + &mb2.arena); + out2.populate_vert(); + EXPECT_EQ(out2.vert_size(), 22); + EXPECT_EQ(out2.face_size(), 18); + if (DO_OBJ) { + write_obj_mesh(out2, "cubecube_none"); + } +} + +TEST(boolean_polymesh, CubeCone) +{ + const char *spec = R"(14 12 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 0 1/2 3/4 + 119/250 31/200 3/4 + 147/500 -81/200 3/4 + 0 0 7/4 + -147/500 -81/200 3/4 + -119/250 31/200 3/4 + 0 1 3 2 + 2 3 7 6 + 6 7 5 4 + 4 5 1 0 + 2 6 4 0 + 7 3 1 5 + 8 11 9 + 9 11 10 + 10 11 12 + 12 11 13 + 13 11 8 + 8 9 10 12 13)"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, BoolOpType::Union, 1, all_shape_zero, true, nullptr, &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 14); + EXPECT_EQ(out.face_size(), 12); + if (DO_OBJ) { + write_obj_mesh(out, "cubeccone"); + } +} + +TEST(boolean_polymesh, CubeCubeCoplanar) +{ + const char *spec = R"(16 12 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + -1/2 -1/2 1 + -1/2 -1/2 2 + -1/2 1/2 1 + -1/2 1/2 2 + 1/2 -1/2 1 + 1/2 -1/2 2 + 1/2 1/2 1 + 1/2 1/2 2 + 0 1 3 2 + 2 3 7 6 + 6 7 5 4 + 4 5 1 0 + 2 6 4 0 + 7 3 1 5 + 8 9 11 10 + 10 11 15 14 + 14 15 13 12 + 12 13 9 8 + 10 14 12 8 + 15 11 9 13 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Union, + 2, + [](int t) { return t < 6 ? 0 : 1; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 16); + EXPECT_EQ(out.face_size(), 12); + if (DO_OBJ) { + write_obj_mesh(out, "cubecube_coplanar"); + } +} + +TEST(boolean_polymesh, TetTeTCoplanarDiff) +{ + const char *spec = R"(8 8 + 0 1 0 + 7/8 -1/2 0 + -7/8 -1/2 0 + 0 0 1 + 0 1 0 + 7/8 -1/2 0 + -7/8 -1/2 0 + 0 0 -1 + 0 3 1 + 0 1 2 + 1 3 2 + 2 3 0 + 4 5 7 + 4 6 5 + 5 6 7 + 6 4 7 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 4 ? 0 : 1; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 4); + EXPECT_EQ(out.face_size(), 4); + if (DO_OBJ) { + write_obj_mesh(out, "tettet_coplanar_diff"); + } +} + +TEST(boolean_polymesh, CubeCubeStep) +{ + const char *spec = R"(16 12 + 0 -1 0 + 0 -1 2 + 0 1 0 + 0 1 2 + 2 -1 0 + 2 -1 2 + 2 1 0 + 2 1 2 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 0 1 3 2 + 2 3 7 6 + 6 7 5 4 + 4 5 1 0 + 2 6 4 0 + 7 3 1 5 + 8 9 11 10 + 10 11 15 14 + 14 15 13 12 + 12 13 9 8 + 10 14 12 8 + 15 11 9 13 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 6 ? 0 : 1; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 12); + EXPECT_EQ(out.face_size(), 8); + if (DO_OBJ) { + write_obj_mesh(out, "cubecubestep"); + } +} + +TEST(boolean_polymesh, CubeCyl4) +{ + const char *spec = R"(16 12 + 0 1 -1 + 0 1 1 + 1 0 -1 + 1 0 1 + 0 -1 -1 + 0 -1 1 + -1 0 -1 + -1 0 1 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 0 1 3 2 + 2 3 5 4 + 3 1 7 5 + 4 5 7 6 + 6 7 1 0 + 0 2 4 6 + 8 9 11 10 + 10 11 15 14 + 14 15 13 12 + 12 13 9 8 + 10 14 12 8 + 15 11 9 13 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 6 ? 1 : 0; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 16); + EXPECT_EQ(out.face_size(), 20); + if (DO_OBJ) { + write_obj_mesh(out, "cubecyl4"); + } +} + +TEST(boolean_polymesh, CubeCubesubdivDiff) +{ + /* A cube intersected by a subdivided cube that intersects first cubes edges exactly. */ + const char *spec = R"(26 22 + 2 1/3 2 + 2 -1/3 2 + 2 -1/3 0 + 2 1/3 0 + 0 -1/3 2 + 0 1/3 2 + 0 1/3 0 + 0 -1/3 0 + 1 1/3 2 + 1 -1/3 2 + 1 1/3 0 + 1 -1/3 0 + 0 -1/3 1 + 0 1/3 1 + 2 1/3 1 + 2 -1/3 1 + 1 1/3 1 + 1 -1/3 1 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 17 9 4 12 + 13 6 7 12 + 15 2 3 14 + 11 7 6 10 + 16 13 5 8 + 9 1 0 8 + 4 9 8 5 + 14 16 8 0 + 2 11 10 3 + 15 1 9 17 + 2 15 17 11 + 3 10 16 14 + 10 6 13 16 + 1 15 14 0 + 5 13 12 4 + 11 17 12 7 + 19 21 20 18 + 21 25 24 20 + 25 23 22 24 + 23 19 18 22 + 18 20 24 22 + 23 25 21 19 + )"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t < 16 ? 1 : 0; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 16); + EXPECT_EQ(out.face_size(), 10); + if (DO_OBJ) { + write_obj_mesh(out, "cubecubesubdivdiff"); + } +} + +TEST(boolean_polymesh, CubePlane) +{ + const char *spec = R"(12 7 + -2 -2 0 + 2 -2 0 + -2 2 0 + 2 2 0 + -1 -1 -1 + -1 -1 1 + -1 1 -1 + -1 1 1 + 1 -1 -1 + 1 -1 1 + 1 1 -1 + 1 1 1 + 0 1 3 2 + 4 5 7 6 + 6 7 11 10 + 10 11 9 8 + 8 9 5 4 + 6 10 8 4 + 11 7 5 9 +)"; + + IMeshBuilder mb(spec); + IMesh out = boolean_mesh( + mb.imesh, + BoolOpType::Difference, + 2, + [](int t) { return t >= 1 ? 0 : 1; }, + false, + nullptr, + &mb.arena); + out.populate_vert(); + EXPECT_EQ(out.vert_size(), 8); + EXPECT_EQ(out.face_size(), 6); + if (DO_OBJ) { + write_obj_mesh(out, "cubeplane"); + } +} + +} // namespace blender::meshintersect::tests +#endif |