{"type":"doc","content":[{"type":"paragraph","content":[{"text":"The VFX Reference Platform is a set of tool and library versions to be used as a common target platform for building software for the VFX industry. More information can be found here: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://vfxplatform.com/"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"This page specifically covers the 2025 version, which is the first (mostly) compliant version of the spec to run on Windows on Arm, mainly due to OneTBB being held back in previous iterations.","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Program Elements:","type":"text"}]},{"type":"table","attrs":{"layout":"default","width":760.0,"localId":"b9fc8433-ffd7-40ce-ab7f-52488f7ee5c6"},"content":[{"type":"tableRow","content":[{"type":"tableHeader","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Name","type":"text","marks":[{"type":"strong"}]}]}]},{"type":"tableHeader","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Status","type":"text","marks":[{"type":"strong"}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Python (3.11.x)","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box, downloadable from ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://www.python.org/downloads/windows/"}},{"text":" ","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Qt (6.5.x)","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Working, installer ","type":"text"},{"text":"https://d13lb3tujbc8s0.cloudfront.net/onlineinstallers/qt-online-installer-windows-arm64-4.8.1.exe","type":"text","marks":[{"type":"link","attrs":{"href":"https://d13lb3tujbc8s0.cloudfront.net/onlineinstallers/qt-online-installer-windows-arm64-4.8.1.exe"}}]},{"text":" (requires login) or alternatively install via vcpkg","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"PyQt (6.5.x)","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Installable via ","type":"text"},{"text":"pip install pyqt6","type":"text","marks":[{"type":"code"}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"PySide (6.5.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#PySide"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Partially working, however only with Qt 6.9, and has no support for QtOpenGL: ","type":"text"},{"text":"https://codereview.qt-project.org/c/pyside/pyside-setup/+/631323","type":"text","marks":[{"type":"link","attrs":{"href":"https://codereview.qt-project.org/c/pyside/pyside-setup/+/631323"}}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"NumPy (1.26.x)","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Working, installable via ","type":"text"},{"text":"pip install numpy","type":"text","marks":[{"type":"code"}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenEXR (3.3.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenEXR"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Ptex (2.4.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Ptex"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Opensubdiv (3.6.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenSubdiv"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenVDB (12.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenVDB"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Alembic (1.8.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Alembic"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenColorIO (2.4.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenColorIO"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Boost (1.85)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Boost"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OneTBB (2021.x)","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OneTBB"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box as OneTBB (","type":"text"},{"text":"not 2020u3","type":"text","marks":[{"type":"strong"}]},{"text":", so earlier versions of the reference platform do not work)","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OneMKL (2024)","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Not applicable (only runs on x64)","type":"text"}]}]}]}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Adjacent elements:","type":"text"}]},{"type":"table","attrs":{"layout":"default","width":760.0,"localId":"3f5df94c-4201-4c9e-9899-9686a4555390"},"content":[{"type":"tableRow","content":[{"type":"tableHeader","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Name","type":"text","marks":[{"type":"strong"}]}]}]},{"type":"tableHeader","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Status","type":"text","marks":[{"type":"strong"}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenUSD","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, however ","type":"text"},{"text":"usdview","type":"text","marks":[{"type":"code"}]},{"text":" does not work, so must be built with the flag ","type":"text"},{"text":"--no-usdview","type":"text","marks":[{"type":"code"}]}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"FreeGLUT","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Imath","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Imath"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"ZLib","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#zlib"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"blosc","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Blosc"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenImageIO","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenImageIO"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OSL","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"OpenTimelineIO","type":"text","marks":[{"type":"link","attrs":{"href":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OpenTimelineIO"}}]}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box","type":"text"}]}]}]},{"type":"tableRow","content":[{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"hdf5","type":"text"}]}]},{"type":"tableCell","attrs":{"colspan":1,"rowspan":1},"content":[{"type":"paragraph","content":[{"text":"Enabled, works out of the box (release mode only)","type":"text"}]}]}]}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Notes on specific projects","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"There is an asumption for these instructions that you have a normal development environment set up (Visual Studio, CMake, Git, etc), alongside LLVM 18.1.8 on an ARM64 machine. Cross-compilation has not been validated.","type":"text"}]},{"type":"paragraph","content":[{"text":"All code blocks are run from a “ARM64 Native Tools Command Prompt for VS 2022” window.","type":"text"}]}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"As part of these examples, the libraries are built statically (as it made running ctest to verify them easier) - it is possible (and encouraged in many cases) to build them dynamically.","type":"text"}]}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"There is a considerable performance boost (up to 46% observed in blender) when using ","type":"text"},{"text":"clang-cl","type":"text","marks":[{"type":"code"}]},{"text":" instead of MSVC - consider using that instead of MSVC via ","type":"text"},{"text":"-DCMAKE_C_COMPILER=\"clang-cl\"","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"-DCMAKE_CXX_COMPILER=\"clang-cl\"","type":"text","marks":[{"type":"code"}]}]}]},{"type":"paragraph","content":[{"text":"Not all programs mentioned in the “Adjacent” table above are covered here, but they are known to be working (usually as part of Blender). Upon request, they can be manually verified.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"PySide","type":"text"}]},{"type":"paragraph","content":[{"text":"This is currently partially working","type":"text","marks":[{"type":"strong"}]},{"text":" - it is installable via pip (as of Qt 6.9), however some components, namely ","type":"text"},{"text":"PySide6.QtOpenGL","type":"text","marks":[{"type":"code"}]},{"text":", are missing. The reason for this is unknown, as access to the ticket is restricted, however the pull request for the disablement is available here: ","type":"text"},{"text":"https://codereview.qt-project.org/c/pyside/pyside-setup/+/631323","type":"text","marks":[{"type":"link","attrs":{"href":"https://codereview.qt-project.org/c/pyside/pyside-setup/+/631323"}}]},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"This has a knock-on effect for software such as USD, which cannot run ","type":"text"},{"text":"usdview","type":"text","marks":[{"type":"code"}]},{"text":" properly.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenEXR","type":"text"}]},{"type":"paragraph","content":[{"text":"OpenEXR is an easier one to build compared to some of the other packages, as it downloads any dependencies it needs itself, as opposed to failing, like most of the other ones.","type":"text"}]},{"type":"paragraph","content":[{"text":"This can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/openexr\ncd openexr\ngit checkout v3.3.2\nmkdir build\ncd build\ncmake -G\"Ninja\" ..\ncmake --build . --config Release","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"paragraph","content":[{"text":"A real-world example of it being built can be seen in the blender source: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/branch/main/build_files/build_environment/cmake/openexr.cmake"}},{"text":" ","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Ptex","type":"text"}]},{"type":"paragraph","content":[{"text":"This was tested via the conan package manager as part of some other work - it builds and appears to run.","type":"text"}]},{"type":"paragraph","content":[{"text":"Alternatively, Ptex can be built directly from source:","type":"text"}]},{"type":"paragraph","content":[{"text":"First, build zlib with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#zlib"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, Ptex can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"https://github.com/wdas/ptex\ncd ptex\ngit checkout v2.4.3\nmkdir build\ncd build\ncmake .. -DPTEX_BUILD_SHARED_LIBS=OFF -DCMAKE_BUILD_TYPE=Release -DZLIB_ROOT= -DCMAKE_INSTALL_PREFIX=\ncmake --build . --config Release","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"“ctest” is broken for ptex on Windows, due to a mismatch of CRLF and LF with the test data - manually checking the difference reveals the tests pass","type":"text"}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenSubdiv","type":"text"}]},{"type":"paragraph","content":[{"text":"First build OneTBB with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OneTBB"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, built Ptex with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Ptex"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"After building those, OpenSubdiv can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"https://github.com/PixarAnimationStudios/OpenSubdiv\ncd OpenSubdiv\ngit checkout v3_6_0\nmkdir build\ncd build\ncmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX= -DTBB_DIR=\\lib\\cmake\\tbb -DPTEX_LOCATION= -DNO_CUDA=ON -DNO_GLEW=ON -DNO_GLFW=ON -DNO_OPENCL=ON -DNO_DX=ON\ncmake --build . --config Release","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"paragraph","content":[{"text":"A real-world example of it being built can be seen in the blender source: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/branch/main/build_files/build_environment/cmake/opensubdiv.cmake"}},{"text":" ","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenVDB","type":"text"}]},{"type":"paragraph","content":[{"text":"First, build zlib with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#zlib"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, build OneTBB with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#OneTBB"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, build boost with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Boost"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, build blosc with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Blosc"}},{"text":" ","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/openvdb\ncd openvdb\ngit checkout v12.0.0\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DCMAKE_BUILD_TYPE=Release -DZLIB_ROOT= -DBOOST_ROOT= -DTBB_ROOT= -DBLOSC_ROOT=\ncmake --build . --config Release","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"ctest does not run when compiled with the above instructions - it requires more dependencies, and is considered beyond the scope of this page.","type":"text"}]},{"type":"paragraph","content":[{"text":"However - upon running it though with the additional requirements, all tests pass.","type":"text"}]}]},{"type":"paragraph","content":[{"text":"A real-world example of it being built can be seen in the blender source: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/branch/main/build_files/build_environment/cmake/openvdb.cmake"}},{"text":" ","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Alembic","type":"text"}]},{"type":"paragraph","content":[{"text":"First, build Imath, with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#Imath"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, alembic can be built with these instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/alembic/alembic\ncd alembic\ngit checkout 1.8.8\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DCMAKE_BUILD_TYPE=Release -DImath_DIR=\\config -DCMAKE_INSTALL_PREFIX= -DALEMBIC_SHARED_LIBS=OFF\ncmake --build . --config Release","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"paragraph","content":[{"text":"A real-world example of it being built can be seen in the blender source: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/branch/main/build_files/build_environment/cmake/alembic.cmake"}},{"text":" ","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Imath","type":"text"}]},{"type":"paragraph","content":[{"text":"Imath can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/IMath\ncd Imath\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF\ncmake --build . --config Release","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OneTBB","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"Only OneTBB as specified in the 2025 standard works. TBB 2020.3 as defined in older versions does not work without a large patch - an example can be seen in Blender (this has since been removed, as Blender now follows the 2025 spec): ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/commit/d5823ad8959abe611fd4dac8125ed0921dbf7276/build_files/build_environment/patches/tbb.diff"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Note that things such as TBBmalloc do not work with the Blender patch, and would require further engineering effort to enable","type":"text"}]}]},{"type":"paragraph","content":[{"text":"oneTBB can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/uxlfoundation/oneTBB\ncd oneTBB\ngit checkout v2021.13.0\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX= -DCMAKE_BUILD_TYPE=Release\ncmake --build . --config Release --target install","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"zlib","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"zlib appears to generate shared libraries, ignoring instructions not to - if you want to force static libraries, delete “zlib.dll” and “zlib.lib” from your installation directory","type":"text"}]}]},{"type":"paragraph","content":[{"text":"zlib can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/madler/zlib\ncd zlib\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DBUILD_SHARED_LIBS=OFF -DCMAKE_INSTALL_PREFIX= -DCMAKE_BUILD_TYPE=Release\ncmake --build . --config Release --target install","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns the single test that zlib has as passing.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Blosc","type":"text"}]},{"type":"paragraph","content":[{"text":"First, build zlib, with the following instructions: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://linaro.atlassian.net/wiki/spaces/WOAR/pages/29693247491/VFX+Reference+Platform+2025#zlib"}},{"text":" ","type":"text"}]},{"type":"paragraph","content":[{"text":"Then, blosc can be build with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/Blosc/c-blosc\ncd c-blosc\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DBUILD_SHARED_LIBS=OFF -DPREFER_EXTERNAL_ZLIB=ON -DZLIB_LIBRARY=\\lib\\zlibstatic.lib -DZLIB_INCLUDE_DIR=\\include -DCMAKE_INSTALL_PREFIX=\ncmake --build . --config Release --target install","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Boost","type":"text"}]},{"type":"paragraph","content":[{"text":"Boost can be built with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone --recursive https://github.com/boostorg/boost.git\ncd boost\ngit checkout boost-1.85.0\nbootstrap.bat --prefix=\nb2 install architecture=arm address-model=64 --prefix=","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenTimelineIO","type":"text"}]},{"type":"paragraph","content":[{"text":"While not necessarily part of VFX2025, it is an adjacent program - it can be built with the following instructions (much like OpenEXR, it downloads any dependencies itself):","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/OpenTimelineIO\ncd OpenTimelineIO\nmkdir build\ncd build\ncmake -G\"Ninja\" .. -DCMAKE_INSTALL_PREFIX= -DCMAKE_BUILD_TYPE=Release -DOTIO_SHARED_LIBS=OFF\ncmake --build . --config Release","type":"text"}]},{"type":"paragraph","content":[{"text":"With the above instructions, a ","type":"text"},{"text":"ctest","type":"text","marks":[{"type":"code"}]},{"text":" returns all tests passing.","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenColorIO","type":"text"}]},{"type":"paragraph","content":[{"text":"OpenColorIO is another easy one that downloads most of its own dependencies, and can be build with the following instructions:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/OpenColorIO\ncd OpenColorIO\nmkdir build\ncd build\ncmake .. -G\"Ninja\" -DCMAKE_BUILD_TYPE=Release\ncmake --build . --config Release","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OpenImageIO","type":"text"}]},{"type":"paragraph","content":[{"text":"OpenImageIO is also an adjacent program, and has a large number of dependencies - luckily it can build them by itself:","type":"text"}]},{"type":"codeBlock","content":[{"text":"git clone https://github.com/AcademySoftwareFoundation/OpenImageIO\ncd OpenImageIO\nmkdir build\ncd build\ncmake .. -G\"Ninja\" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX= -DOpenImageIO_BUILD_MISSING_DEPS=all -Dminizip-ng_INCLUDE_DIR=%CD%\\deps\\dist\\include\\minizip-ng -DBUILD_SHARED_LIBS=OFF\ncmake --build . --config Release","type":"text"}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"Line 5 might need to be run twice, as the first attempt may end in an unknown failure - it should still build though","type":"text"}]}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"OSL (Open Shader Language)","type":"text"}]},{"type":"paragraph","content":[{"text":"OSL is another adjacent project to the VFX reference platform - build instructions are not included here, as they require building your own copy of LLVM. An example of how it can be build can be seen as part of the Blender build files: ","type":"text"},{"type":"inlineCard","attrs":{"url":"https://projects.blender.org/blender/blender/src/branch/main/build_files/build_environment/cmake/osl.cmake"}},{"text":" ","type":"text"}]}],"version":1}

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