a6b293daac
When calling bpy.utils.expose_bundled_modules(), these modules are added to sys.path. This provides a solution/workaround to two problems: * Using bpy together with packages like usd-core is problematic. Besides crashing due to C++ symbol conflicts, it's just impossible to import different versions of the same module, or to have distinct environment variables for both. (#127132) * Blender add-ons using these VFX modules do not currently work with the bpy module. This adds about 15MB to the bpy package. Pull Request: https://projects.blender.org/blender/blender/pulls/133082
54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
# SPDX-FileCopyrightText: 2022-2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Make shared libraries needed by modules available in standalone Python binary.
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import sys
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import os
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exe_dir, exe_file = os.path.split(sys.executable)
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is_python = exe_file.startswith("python")
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# Path to Blender shared libraries.
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shared_lib_dirname = "blender.shared" if sys.platform == "win32" else "lib"
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if is_python:
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shared_lib_dir = os.path.abspath(os.path.join(exe_dir, "..", "..", "..", shared_lib_dirname))
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else:
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shared_lib_dir = os.path.abspath(os.path.join(exe_dir, shared_lib_dirname))
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if sys.platform == "win32":
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# Directory for extensions to find DLLs.
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if is_python:
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os.add_dll_directory(shared_lib_dir)
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# Directory for USD extension to find DLLs.
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import_paths = os.getenv("PXR_USD_WINDOWS_DLL_PATH")
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if import_paths is None:
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os.environ["PXR_USD_WINDOWS_DLL_PATH"] = shared_lib_dir
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# OIIO will by default add all paths from the path variable to add_dll_directory
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# problem there is that those folders will be searched before ours and versions of
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# some DLL files may be found that are not blenders and may not even be the right version
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# causing compatibility issues.
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os.environ["OIIO_LOAD_DLLS_FROM_PATH"] = "0"
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# MaterialX libraries, append if already specified.
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materialx_libs_dir = os.path.abspath(os.path.join(shared_lib_dir, "materialx", "libraries"))
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materialx_libs_env = os.getenv("MATERIALX_SEARCH_PATH")
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if materialx_libs_env is None:
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os.environ["MATERIALX_SEARCH_PATH"] = materialx_libs_dir
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else:
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os.environ["MATERIALX_SEARCH_PATH"] = materialx_libs_env + os.pathsep + materialx_libs_dir
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materialx_libs_env = os.getenv("PXR_MTLX_STDLIB_SEARCH_PATHS")
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if materialx_libs_env is None:
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os.environ["PXR_MTLX_STDLIB_SEARCH_PATHS"] = materialx_libs_dir
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else:
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os.environ["PXR_MTLX_STDLIB_SEARCH_PATHS"] = materialx_libs_env + os.pathsep + materialx_libs_dir
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def register():
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# To make this work as a startup script for Blender as a Python module.
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pass
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