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Split up larger tutorials (#2237) [ci skip]

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* split up 406; cmake

* split up 716

* rm old file

* 716 changes to main

* 709 split up

* missing include

* special syntax for windows ❄️

* stupid windows struct/class

* split up 805

* split up 610)'
This commit is contained in:
Alec Jacobson
2023-08-19 19:19:44 -04:00
committed by GitHub
parent e2a345a43d
commit f3f7879364
24 changed files with 811 additions and 590 deletions
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tutorial/406_FastAutomaticSkinningTransformations/main.cpp
+3 -63
View File
@@ -1,16 +1,6 @@
#include <igl/colon.h>
#include <igl/directed_edge_orientations.h>
#include <igl/directed_edge_parents.h>
#include <igl/forward_kinematics.h>
#include <igl/PI.h>
#include <igl/partition.h>
#include <igl/max.h>
#include <igl/lbs_matrix.h>
#include "precomputation.h"
#include <igl/slice.h>
#include <igl/deform_skeleton.h>
#include <igl/dqs.h>
#include <igl/lbs_matrix.h>
#include <igl/columnize.h>
#include <igl/readDMAT.h>
#include <igl/readOBJ.h>
#include <igl/arap.h>
@@ -40,7 +30,6 @@ double bbd = 1.0;
bool resolve = true;
igl::ARAPData arap_data,arap_grouped_data;
igl::ArapDOFData<Eigen::MatrixXd,double> arap_dof_data;
Eigen::SparseMatrix<double> Aeq;
enum ModeType
{
@@ -149,57 +138,8 @@ int main(int argc, char *argv[])
U=V;
MatrixXd W;
igl::readDMAT(TUTORIAL_SHARED_PATH "/armadillo-weights.dmat",W);
igl::lbs_matrix_column(V,W,M);
// Cluster according to weights
VectorXi G;
{
VectorXi S;
VectorXd D;
igl::partition(W,50,G,S,D);
}
// vertices corresponding to handles (those with maximum weight)
{
VectorXd maxW;
igl::max(W,1,maxW,b);
}
// Precomputation for FAST
cout<<"Initializing Fast Automatic Skinning Transformations..."<<endl;
// number of weights
const int m = W.cols();
Aeq.resize(m*3,m*3*(3+1));
vector<Triplet<double> > ijv;
for(int i = 0;i<m;i++)
{
RowVector4d homo;
homo << V.row(b(i)),1.;
for(int d = 0;d<3;d++)
{
for(int c = 0;c<(3+1);c++)
{
ijv.push_back(Triplet<double>(3*i + d,i + c*m*3 + d*m, homo(c)));
}
}
}
Aeq.setFromTriplets(ijv.begin(),ijv.end());
igl::arap_dof_precomputation(V,F,M,G,arap_dof_data);
igl::arap_dof_recomputation(VectorXi(),Aeq,arap_dof_data);
// Initialize
MatrixXd Istack = MatrixXd::Identity(3,3+1).replicate(1,m);
igl::columnize(Istack,m,2,L);
// Precomputation for ARAP
cout<<"Initializing ARAP..."<<endl;
arap_data.max_iter = 1;
igl::arap_precomputation(V,F,V.cols(),b,arap_data);
// Grouped arap
cout<<"Initializing ARAP with grouped edge-sets..."<<endl;
arap_grouped_data.max_iter = 2;
arap_grouped_data.G = G;
igl::arap_precomputation(V,F,V.cols(),b,arap_grouped_data);
precomputation(V,F,W,M,b,L,arap_data,arap_grouped_data,arap_dof_data);
// bounding box diagonal
bbd = (V.colwise().maxCoeff()- V.colwise().minCoeff()).norm();