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- 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
- = File Formats =
- See file-formats/index.html
- 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
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