Mesh Smoothing with OpenMesh

Smoothing Algorithm

• Laplacian Smoothing
  • lamda = 0.25
• Taubin Smoothing
  • lamda = 0.5
  • mu = -0.67

Prepare

Compiling OpenMesh (OpenMesh Documentation)

1. Download OpenMesh via website or git

   • static version: OpenMesh Download Page
   • development version: git clone https://www.graphics.rwth-aachen.de:9000/OpenMesh/OpenMesh.git

2. Unzip and build

   1. Unzip
   2. cd OpenMesh-6.1
   3. mkdir build
   4. cd build
   5. debug version: cmake .. -DCMAKE_BUILD_TYPE=Debug
      release version: cmake .. -DCMAKE_BUILD_TYPE=Release
   6. sudo make install

Compile

just make

if error while loading shared libraries
add "/usr/local/lib" in /etc/ld.so.conf
sudo ldconfig

Run

Laplacian Smoothing = 1
Taubin Smoothing = 2

• ./smoothEx <algorithm> <times> <input obj file> <output obj file>
• example of Laplacian Smoothing: ./smoothEx 1 50 input.obj output.obj
• example of Taubin Smoothing: ./smoothEx 2 50 input.obj output.obj

Output

• filename.obj: only vertex and face
• filename_n.obj: add vertex normal