This is a small program that illustrates how to compute Bounded Biharmonic
Weights (BBW) for a given surface mesh and skeleton description. This only
supports point handles and skeleton trees (bones). Cages are not supported.
This program only computes and outputs the weight function values. You should
be able to load them into matlab or maya or whatever.

= COMPILE =

First install the dependencies (e.g. mosek).  If your on a mac, and why
wouldn't you be, then you *should* with any luck and by the grace of God be
able to compile with:

  make

= RUN =

Then run an example with (e.g.):

  ./bbw_demo examples/brick.obj examples/brick.tgf

This will produce at least 2 files:

  examples/brick-volume.mesh  Tetrahedral mesh over which weights were computed
  examples/brick-volume.dmat  Coefficients of weights defined over .mesh

The dependencies are:
  igl_lib
    eigen3
    tetgen
    mosek

= Igl lib =
IGL_lib is our groups internal library. It will someday be publically
available, but not yet. Thus I only include here a bare minimum to get this
demo to work. The library functions as an inlined header library. All the
source is located in ./igl_lib/include/igl

  = Eigen3 =
  The igl dependencies rely on a depracted version of the Sparse Matrix suite
  in eigen 3. Thus you need the correct version of eigen. To make this easier I
  have included the necessary version of eigen here: ./eigen3

  = Mosek =
  Mosek is free for academics and has its own installation instructions. Adjust
  your makefile accordingly.

  = Tetgen =
  Tetgen is also free and easy to install. Be sure to compile the library
  version, i.e.: 
    make tetlib

  To make life a little easier I include a working version of tetgen in
  ./igl_lib/external/tetgen/. You can go there and compile libtet.a or download
  the tetgen source and do that on your own. Whatever.


You can try to email Alec Jacobson (alecjacobson@gmail.com) with questions.
Especially regarding the algorithm described in "Bounded biharmonic weights for
real-time deformation" by [Jacobson et al. 2011].  However, please
please
please
please
please
please
please
please
please
please
please
please
please
please
please
please
please
please
try to solve compilation troubles on your own. I didn't intend for this code to
be machine independent or even necessarily easy to compile. This is a quick and
dirty demo because so many people requested it.

Sometime in the not too distant future I still plan to release a *nice* 3d, C++
demo. 

Love,
Alec