This script builds Blender from its source code, rather than repackaging an existing binary version. The process is therefore more complex and time consuming but allows finer tuning of capabilities of the resulting package. Working through the prerequisite packages from the REQUIRES field of Blender.info results in the following basic build order: multimedia/ffmpeg audio/jack-audio-connection-kit libraries/opencv graphics/opencollada libraries/OpenAL libraries/openjpeg python/python3 python/python-requests development/valgrind libraries/LibRaw libraries/libwebp development/numpy3 development/SDL2 graphics/opencolorio graphics/openimageio libraries/jemalloc libraries/freealut graphics/Blender When generating a new build order, python3 should first be added to the REQUIRES field of python-requests.info. To facilitate the greatest utility for Blender, its is strongly suggested that a number of standard SBo packages be built with a more complete set of features than provided by the default scripts: 1. the opencv package could/should first be built with additional features by preinstalling some other packages e.g. REQUIRES=" opencl-headers libjpeg-turbo ffmpeg Sphinx libdc1394 numpy3 gtkglext tbb jdk " The cmake configuration in opencv.SlackBuild can be replaced with: cmake \ -DCMAKE_C_FLAGS="$SLKCFLAGS" \ -DCMAKE_CXX_FLAGS="$SLKCFLAGS" \ -DCMAKE_BUILD_TYPE="Release" \ -DCMAKE_INSTALL_PREFIX=/usr \ -DBUILD_SHARED_LIBS=ON \ -DENABLE_PRECOMPILED_HEADERS=OFF \ -DLIB_SUFFIX=$LIBDIRSUFFIX \ -DWITH_TBB=ON \ -DWITH_OPENCL=ON \ -DWITH_OPENGL=ON \ -DWITH_QT=ON \ -DWITH_XINE=ON \ -DBUILD_EXAMPLES=ON \ -DINSTALL_C_EXAMPLES=ON \ -DINSTALL_PYTHON_EXAMPLES=ON \ -DBUILD_NEW_PYTHON_SUPPORT=ON \ -DWITH_FFMPEG=ON \ -DCMAKE_SKIP_RPATH=ON \ -DWITH_1394:BOOL=ON \ .. If resources allow, the very large cudatoolkit package is another possible package which may be preinstalled and be utilised by the opencv build process. 2. the ffmpeg package could/should first be built with additional features by preinstalling some other packages e.g. REQUIRES="lame x264 speex libbluray xvidcore OpenAL libmodplug frei0r libdc1394 libavc1394 libiec61883 ladspa_sdk gsm rtmpdump libvpx libva twolame celt faac dirac schroedinger openjpeg " 3. the numpy SlackBuild at SBo does not build the python3 modules which are needed to be useful for any numpy-related python scripting in blender. It is therefore numpy3 which is the prerequisite for this build of blender.