Example-Based Facial Rigging

This is an implementation of "Example-Based Facial Rigging, Siggraph 2010."

It is a method for generating facial blendshape rigs from a set of example poses of a CG character.

<p align="center"> <img src="imgs/pipeline.png" alt="Sample" width="850" height="400">

Dependencies

• trimesh2
• Eigen 3.3.3
• SuiteSparse
• ceres solver 1.12.0

install trimesh2

cd third_party/trimesh2
make clean && make

install SuiteSparse

cd third_party/SuiteSparse
make
sudo make install

install ceres

cd third_party/ceres-solver-1.12.0
mkdir build && cd build
cmake ..
make -j4
sudo make install

if error, please refer to https://blog.csdn.net/calvinpaean/article/details/99761765.

Compile

mkdir build
cd build
cmake ..
make -j8

mkdir B
mkdir initBlendshape
mkdir reconstruct
mkdir S

./TestCases

Results

<p align="center"> <img src="imgs/ref0.png" alt="Sample" width="200" height="200"><img src="imgs/ref1.png" alt="Sample" width="200" height="200"> <p align="center"> <img src="imgs/dst0.png" alt="Sample" width="200" height="200"><img src="imgs/dst1.png" alt="Sample" width="200" height="200"> <p align="center"> <em>Upper: reference blendshapes, Below: calculated blendshapes for another subject</em>

Install problems

install gflags

cd third_party/gflags
mkdir build && cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_SHARED_LIBS=ON -DGFLAGS_NAMESPACE=gflags ../ 
make -j4
sudo make install

install glog

cd third_party/glog
./autogen.sh
./configure
make -j8
sudo make install

if occurs error

usr/bin/ld: /usr/local/lib/libglog.a(libglog_la-logging.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libglog.a: error adding symbols: Bad value
collect2: error: ld returned 1 exit status

please ./configure CPPFLAGS="-I/usr/local/include -fPIC" LDFLAGS="-L/usr/local/lib"