BUILD.md · Hejiao/openMVS

------------
Dependencies
------------

*OpenMVS* relies on a number of open source libraries, some of which are optional. For details on customizing the build process, see the compilation instructions.
* [Eigen](http://eigen.tuxfamily.org) version 3.2 or higher
* [OpenCV](http://opencv.org) version 2.4 or higher
* [Ceres](http://ceres-solver.org) version 1.10 or higher
* [CGAL](http://www.cgal.org) version 4.2 or higher
* [Boost](http://www.boost.org) version 1.56 or higher
* [VCG](http://vcg.isti.cnr.it/vcglib)
* [GLFW](http://www.glfw.org)

------------------
Build instructions
------------------

Required tools:
* [CMake](http://www.cmake.org)
* [git](https://git-scm.com)
* C/C++ compiler like Visual Studio or GCC

-------------------
Windows compilation
-------------------

Visual Studio 2008 or newer are supported. Please note that the development is done mainly on Windows, so this platform build is well tested. The latest pre-built binaries for fast testing can be download from [here](https://github.com/cdcseacave/openMVS_sample/releases/latest). Visual Studio 2017 and dependencies automation tool [vcpkg](https://github.com/Microsoft/vcpkg) are used in this example.

```
#Make a toplevel directory for deps & build & src somewhere:
mkdir OpenMVS
cd OpenMVS

#Get and install dependencies using vcpkg;
#choose the desired triplet, like "x64-windows", by setting the VCPKG_DEFAULT_TRIPLET environment variable or by specifying it after each package:
vcpkg install zlib boost-iostreams boost-program-options boost-system boost-serialization eigen3 cgal[core] opencv glew glfw3

#Get VCGLib (Required):
git clone https://github.com/cdcseacave/VCG.git

#Get and unpack OpenMVS in OpenMVS/src:
git clone https://github.com/cdcseacave/openMVS.git src

#Make build directory:
mkdir build
cd build

#Run CMake, where VCPKG_ROOT environment variable points to the root of vcpkg installation:
cmake . ..\src -G "Visual Studio 15 2017 Win64" -DCMAKE_TOOLCHAIN_FILE=%VCPKG_ROOT%\scripts\buildsystems\vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows -DVCG_ROOT="..\VCG"

#Open the solution in MSVC and build it
```

-----------------
Linux compilation
-----------------

[Ubuntu](http://www.ubuntu.com) 16.04 is used next as the example linux distribution.

```
#Prepare and empty machine for building:
sudo apt-get update -qq && sudo apt-get install -qq
sudo apt-get -y install git mercurial cmake libpng-dev libjpeg-dev libtiff-dev libglu1-mesa-dev
main_path=`pwd`

#Eigen (Required)
hg clone https://bitbucket.org/eigen/eigen#3.2
mkdir eigen_build && cd eigen_build
cmake . ../eigen
make && sudo make install
cd ..

#Boost (Required)
sudo apt-get -y install libboost-iostreams-dev libboost-program-options-dev libboost-system-dev libboost-serialization-dev

#OpenCV (Required)
sudo apt-get -y install libopencv-dev

#CGAL (Required)
sudo apt-get -y install libcgal-dev libcgal-qt5-dev

#VCGLib (Required)
git clone https://github.com/cdcseacave/VCG.git vcglib

#Ceres (optional)
sudo apt-get -y install libatlas-base-dev libsuitesparse-dev
git clone https://ceres-solver.googlesource.com/ceres-solver ceres-solver
mkdir ceres_build && cd ceres_build
cmake . ../ceres-solver/ -DMINIGLOG=ON -DBUILD_TESTING=OFF -DBUILD_EXAMPLES=OFF
make -j2 && sudo make install
cd ..

#GLFW3 (Optional)
sudo apt-get -y install freeglut3-dev libglew-dev libglfw3-dev

#OpenMVS
git clone https://github.com/cdcseacave/openMVS.git openMVS
mkdir openMVS_build && cd openMVS_build
cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_ROOT="$main_path/vcglib"

#If you want to use OpenMVS as shared library, add to the CMake command:
-DBUILD_SHARED_LIBS=ON

#Install OpenMVS library (optional):
make -j2 && sudo make install
```

--------------------
Mac OS X compilation
--------------------

Install dependencies, run CMake and make.

```
#Install dependencies
brew update
brew tap homebrew/science
brew install boost eigen opencv cgal ceres-solver
main_path=`pwd`

#VCGLib (Required)
git clone https://github.com/cdcseacave/VCG.git vcglib

#Getting the OpenMVS sources:
git clone https://github.com/cdcseacave/openMVS.git

#Build OpenMVS
mkdir openMVS_build && cd openMVS_build
cmake . ../openMVS -DCMAKE_BUILD_TYPE=Release -DVCG_DIR="$main_path/vcglib"

#If you want to use OpenMVS as shared library, add to the CMake command:
-DBUILD_SHARED_LIBS=ON

#Install OpenMVS library (optional):
make && sudo make install
```

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