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Bullet SOP Mac OS X compile notes
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bulletSop_compileNotes.md

Bullet SOP - Mac OS X

Notes for compiling Milan Suk's Bullet SOP for Houdini.

Software Used

The initial build testing was done with these versions of software:

  • Mac OS X 10.10.2
  • Xcode 6.1.1 (6A2008a)
  • MacPorts 2.3.3
  • Cmake 3.1.3
  • Houdini 14.0.201.13
  • Bullet 2.82 r2704

Compile Instructions

Getting Started

Make sure you've got the latest Xcode installed. Under Mavericks, to get the command line tools installed, you have to run xcode-select --install, and choose Install from the pop-up window.

Install Macports [from here][https://www.macports.org/install.php], then in a new shell install Cmake with sudo port install cmake.

After installing Houdini, you need to run it in a shell with all the Houdini environment variables setup correctly. If you don't have one you've created yourself, you can run /Applications/Houdini 13.0.385/Houdini Shell.terminal.

Lastly, run this command in a Terminal, to create our working directory: mkdir ~/bullet_sop_dev. Then cd into that directory, and we're ready to get started.

Bullet Library

  1. Download the Bullet library and Bullet SOP:
    1. curl -o ~/bullet_sop_dev https://bullet.googlecode.com/files/bullet-2.82-r2704.tgz
    2. cd ~/bullet_sop_dev; tar xvfz bullet-2.82-r2704.tgz; cd bullet-2.82-r2704
    3. Download the Bullet SOP code to ~bullet_sop_dev, and unzip/untar.
  2. Patch btSolverBody.h 1, though there may be a compiler flag to do this as well 2:
    1. cd ~/bullet_sop_dev/bullet-2.82-r2704/src/BulletDynamics/ConstraintSolver; cp ~/bullet_sop_dev/BulletSOP-master/source/macosx_x86_64_clang/btSolverBody.patch .
    2. Run the patch with patch < btSolverBody.patch, and answer Y in response to Reversed (or previously applied) patch detected! Assume -R?
  3. Configure Bullet with Cmake (omits Demos, build static libs, etc...)
    1. cd ~/bullet_sop_dev/bullet-2.82-r2704; cmake . -G "Unix Makefiles" -DBUILD_DEMOS:BOOL=OFF -DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_OSX_ARCHITECTURES='x86_64' -DBUILD_MULTITHREADING=1 -DCMAKE_CXX_FLAGS="-fPIC" -DCMAKE_C_FLAGS="-fPIC"
  4. Build and install with make -j4; sudo make install (set -j to as many threads as you have/want to use)
  5. Verify that the /usr/local/bullet/ has properly populated lib and include dirs. This is where the build.sh script will look for the Bullet libraries and headers.

Bullet SOP

  1. Download the Bullet SOP code to ~bullet_sop_dev, and unzip/untar.
  2. cd ~/bullet_sop_dev/BulletSOP-master/source/macosx_x86_64_clang
  3. Build it with sh build.sh. Ignore any errors that say ld: library not found for -lc.o
  4. Verify the plugin was installed via ls -ltr /Users/$USER/Library/Preferences/houdini/13.0/dso/bulletSOP.dylib
    1. You can also verify the library is not dynamically linked to the bullet library with otool -L /Users/$USER/Library/Preferences/houdini/13.0/dso/bulletSOP.dylib
  5. Install the icons via cp ~/bullet_sop_dev/BulletSOP-master/icons /Users/$USER/Library/Preferences/houdini/13.0/config/Icons (or any location included in $HOUDINI_UI_ICON_PATH, which isn't setup by default; just use your home dir preferences, unless you've got a reason to use another and add it to the icon path)
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