Deformation Transfer for Triangle Meshes

unofficial implementation. see also https://people.csail.mit.edu/sumner/research/deftransfer/Sumner2004DTF.pdf

if you want to see demo. see this youtube : link

deps

manually install below library PCL -1.12.1 kdtree

add it to your system environment path path/to/pcl/bin or set env in cmake

auto installed libraries

libigl  
eigen  
spdlog  
yaml-cpp  

LOGGING

for Eigen testing Use PRETTY_LOG_BEGIN(msg, category), PRETTY_LOG_END(msg, category), log_sparse(), log_dense()

#include <Eigen/Sparse>
#include <Eigen/Core>
#include "pretty_log.h"

// if you disable it. it doesn't write or execute anything 
// between PRETTY_LOG_BEGIN and PRETTY_LOG_END
#define category "category_name" 
PRETTY_LOG_BEGIN("test", "DENSE_WRITE")
your code....
PRETTY_LOG_END("test", "DENSE_WRITE")

// or 
Eigen::SparseMatrix<float> sp;
log_sparse(sp)

//or
Eigen::Matrix<float> mat;
log_dense(mat)

dataset

if you want to test deformation transfer. please download additional datasets from author's webpage. face dataset Link
(If you use these meshes in a manner that relates to my paper, please reference it.)

etc

Eigen cross production doesn't take normalize into consideration.

But, numpy library cautiously dealing it.

// c++ code
Eigen::Vector3 a, b;
// assign a,b...
a.normalize(); b.normalize();
Eigen::Vector3 result  = a.cross(b);

equivalent c++ code as python

# python code
a = np.array([.. .. ..])
b = np.array([.. .. ..])
c = np.cross(a, b)