forgot file

.github/workflows/manifold.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Install dependencies
       run: |
         apt-get -y update
-        DEBIAN_FRONTEND=noninteractive apt install -y libomp-dev libassimp-dev git libtbb-dev pkg-config libpython3-dev python3 python3-distutils python3-pip lcov
+        DEBIAN_FRONTEND=noninteractive apt install -y libomp-dev git libtbb-dev pkg-config libpython3-dev python3 python3-distutils python3-pip lcov
         pip install trimesh
     - uses: actions/checkout@v3
       with:
@@ -77,7 +77,7 @@ jobs:
     - name: Install dependencies
       run: |
         apt-get -y update
-        DEBIAN_FRONTEND=noninteractive apt install -y libomp-dev libassimp-dev git libtbb-dev pkg-config libpython3-dev python3 python3-distutils python3-pip
+        DEBIAN_FRONTEND=noninteractive apt install -y libomp-dev git libtbb-dev pkg-config libpython3-dev python3 python3-distutils python3-pip
     - uses: actions/checkout@v3
       with:
         submodules: recursive

.gitmodules

@@ -14,3 +14,6 @@
 [submodule "src/third_party/clipper2"]
 	path = src/third_party/clipper2
 	url = https://github.com/AngusJohnson/clipper2
+[submodule "meshIO/third_party/assimp"]
+	path = meshIO/third_party/assimp
+	url = https://github.com/assimp/assimp.git

.vscode/settings.json

@@ -104,7 +104,7 @@
   "editor.formatOnSave": true,
   "cmake.configureArgs": [
     "-DBUILD_SHARED_LIBS=ON",
-    "-DMANIFOLD_EXPORT=OFF",
+    "-DMANIFOLD_EXPORT=ON",
     "-DMANIFOLD_DEBUG=ON",
     "-DMANIFOLD_USE_CUDA=OFF",
     "-DMANIFOLD_PAR=NONE",

README.md

@@ -56,7 +56,7 @@ test/manifold_test
 CMake flags (usage e.g. `-DMANIFOLD_USE_CUDA=ON`):
 - `MANIFOLD_USE_CUDA=[<OFF>, ON]`: Provides Nvidia GPU parallelization, requires CUDA Toolkit and its nvcc compiler.
 - `MANIFOLD_PAR=[<NONE>, OMP, TBB]`: Provides multi-thread parallelization, requires `libomp-dev` or `libtbb-dev`.
-- `MANIFOLD_EXPORT=[<OFF>, ON]`: Enables GLB export of 3D models from the tests, requires `libassimp-dev`.
+- `MANIFOLD_EXPORT=[<OFF>, ON]`: Enables GLB export of 3D models from the tests, uses `assimp`.
 - `MANIFOLD_DEBUG=[<OFF>, ON]`: Enables internal assertions and exceptions.
 - `BUILD_TEST_CGAL=[<OFF>, ON]`: Builds a CGAL-based performance [comparison](https://github.com/elalish/manifold/tree/master/extras), requires `libcgal-dev`.
 

meshIO/CMakeLists.txt

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+add_subdirectory(third_party)
+
 project(meshIO)
 
 add_library(${PROJECT_NAME} src/meshIO.cpp)

meshIO/third_party/CMakeLists.txt

@@ -0,0 +1,27 @@
+# Copyright 2023 The Manifold 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
+#
+# https://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.
+
+# I feel like there has to be a better way - I hate using the CMake cache. 
+set(ASSIMP_BUILD_TESTS OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_WARNINGS_AS_ERRORS OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_INSTALL OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_BUILD_ASSIMP_VIEW OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT OFF CACHE INTERNAL "" FORCE)
+set(ASSIMP_BUILD_GLTF_EXPORTER ON CACHE INTERNAL "" FORCE)
+set(ASSIMP_BUILD_GLTF_IMPORTER ON CACHE INTERNAL "" FORCE)
+
+add_subdirectory(assimp)
+
+target_compile_options(assimp PRIVATE -Wno-error -Wno-deprecated-declarations)

src/third_party/CMakeLists.txt

@@ -1,3 +1,17 @@
+# Copyright 2023 The Manifold 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
+#
+# https://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.
+
 add_subdirectory(glm)
 add_subdirectory(graphlite)