Compilation issues [scalar_spectral, gpu_autodiff_spectral, CUDA 10.2, Winows 10]

[mitsuba-renderer]

Compilation issues [scalar_spectral, gpu_autodiff_spectral, CUDA 10.2, Winows 10]

[Speierers]

You could also try to build from the command line using the following command (this works for me):

cmake .
cmake --build .

It should build the entire solution (here assuming we build from the root directory).

[LeonidMill]

Building from the command line indeed solved the issue. All relevant files are in dist now. Thank you and keep up the great work!

[merlinND]

Hi @LeonidMill,

Could you try adding scalar_rgb as an extra mode? This seemed to fix issue #5.

[LeonidMill]

Hi @merlinND,

thank you for your answer. I added scalar_rgb as extra mode, however the same errors still occur during compilation:

compilation errors with spectral_rgb.txt

[Speierers]

This has been fixed in 3df7a05. Could you please try again?

[LeonidMill]

Hi @Speierers,

almost all errors are gone now, however the compilation still failed due LNK1104: cannot open file 'optix.lib' and LNK1104: cannot open file '..\librender\Debug\mitsuba-render.lib' errors.

Log:

24>Generating Code...
24>   Creating library D:/Mitsuba2/mitsuba2/ext_build/openexr/OpenEXR/IlmImf/Debug/IlmImf.lib and object D:/Mitsuba2/mitsuba2/ext_build/openexr/OpenEXR/IlmImf/Debug/IlmImf.exp
24>IlmImf.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\openexr\OpenEXR\IlmImf\Debug\IlmImf.dll
25>------ Build started: Project: mitsuba-core (mitsuba-core\mitsuba-core), Configuration: Debug x64 ------
25>Building Custom Rule D:/Mitsuba2/mitsuba2/src/libcore/CMakeLists.txt
25>   Creating library D:/Mitsuba2/mitsuba2/src/libcore/Debug/mitsuba-core.lib and object D:/Mitsuba2/mitsuba2/src/libcore/Debug/mitsuba-core.exp
25>mitsuba-core.vcxproj -> D:\Mitsuba2\mitsuba2\src\libcore\Debug\mitsuba-core.dll
26>------ Build started: Project: mitsuba-render (mitsuba-render\mitsuba-render), Configuration: Debug x64 ------
26>Building Custom Rule D:/Mitsuba2/mitsuba2/src/librender/CMakeLists.txt
26>LINK : fatal error LNK1104: cannot open file 'optix.lib'
26>Done building project "mitsuba-render.vcxproj" -- FAILED.
27>------ Build started: Project: mitsuba, Configuration: Debug x64 ------
27>Building Custom Rule D:/Mitsuba2/mitsuba2/src/mitsuba/CMakeLists.txt
27>mitsuba.cpp
27>D:\Mitsuba2\mitsuba2\src\mitsuba\mitsuba.cpp(99,9): warning C4566: character represented by universal-character-name '\u274C' cannot be represented in the current code page (1252)
27>LINK : fatal error LNK1104: cannot open file '..\librender\Debug\mitsuba-render.lib'
27>Done building project "mitsuba.vcxproj" -- FAILED.
========== Build: 25 succeeded, 2 failed, 0 up-to-date, 0 skipped ==========

[Speierers]

Hi @LeonidMill,
Could you maybe try to add \path\to\OptiX SDK 6.5.0\bin64 to your PATH?

Also you might have to replace the following line in src/librender/CMakeLists.txt (line 96)

- target_link_libraries(mitsuba-render PRIVATE optix)
+target_link_libraries(mitsuba-render PRIVATE optix.6.5.0)

I will try to make this cmake more robust on Windows. Let me know if this solves your problem.

[LeonidMill]

Adding \...\OptiX SDK 6.5.0\bin64 to PATH with your suggested changes in the src/librender/CMakeLists.txt seems to resolve the compilation issues. However, after the compilation system errors are thrown because mitsuba-render.dll, mitsuba-core.dll and tbb.dll are not found.

[Speierers]

Could you try maybe to re-compile from a clean build?

[LeonidMill]

I tried several times, also without the gpu_autodiff_spectral variant, but nothing worked. Although the compilation succeeds, the mitsuba.exe - System Error still exists as mitsuba-render.dll could not be found. Complementary to the error I get strange warnings The project 'ALL_BUILD' has been modified outside the environment and The project 'mitsuba-render (mitsuba-render\mitsuba-render)' has been modified outside the environment.

[merlinND]

Does this error occur only when running mitsuba.exe, after compilation & linking has fully succeeded ? If so, have you used the `setpath` script?

…

On Fri 6 Mar 2020 at 22:52, Leo ***@***.***> wrote: I tried several times, also without the gpu_autodiff_spectral variant, but nothing worked. Although the compilation succeeds, the mitsuba.exe - System Error still exists as mitsuba-render.dll could not be found. Complementary to the error I get strange warnings The project 'ALL_BUILD' has been modified outside the environment and The project 'mitsuba-render (mitsuba-render\mitsuba-render)' has been modified outside the environment . — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#7?email_source=notifications&email_token=ABKOH2VTJIFUUCD4EAG3BELRGFV75A5CNFSM4LBAZXBKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEOC7BZI#issuecomment-595980517>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABKOH2VURDDQBQ4HSQ6IIITRGFV75ANCNFSM4LBAZXBA> .

[LeonidMill]

Hi @merlinND,

thank you for your answer. Yes, the errors (missing .dll files) only occur when running mitsuba.exe, after compilation and linking has fully succeeded. Running the setpath script does not resolve the issue. However, when I copy all .dll files in a folder and manually add it to the PATH the mitsuba.exe runs without errors. But doing so, I still can not find a mitsuba.pyd?

[wjakob]

Do you run mitsuba.exe from the same command prompt (cmd.exe) in which you have previously executed the setpath.bat script? Does the main Mitsuba directory contain a subfolder dist that contains the build products?

[LeonidMill]

Hi @wjakob,

using the same command prompt did indeed worked, but the python subdirectory in the dist folder was still empty.

I tried to compile the whole system from scratch today (7075f0c) to make sure that I did not mess up between the building steps, however now I again get the same errors (namespace,
MSB3721 and LNK1181) as previously during compilation:

18>Done building project "mitsuba-render-obj.vcxproj".
19>------ Build started: Project: rgb2spec, Configuration: Release x64 ------
19>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/rgb2spec/CMakeLists.txt
6>D:/Mitsuba2/mitsuba2/ext/enoki/src/cuda/horiz.cu(81): error : namespace "std" has no member "min"
6>
17>private_server.cpp
6>1 error detected in the compilation of "C:/Users/adminlab/AppData/Local/Temp/tmpxft_00003f30_00000000-7_horiz.cpp1.ii".
6>horiz.cu
6>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\BuildCustomizations\CUDA 10.2.targets(764,9): error MSB3721: The command ""C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.2\bin\nvcc.exe" -gencode=arch=compute_61,code=\"compute_61,compute_61\" --use-local-env -ccbin "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\bin\HostX64\x64" -x cu  -ID:\Mitsuba2\mitsuba2\ext\enoki\include -ID:\Mitsuba2\mitsuba2\ext\enoki\ext\cub -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.2\include"     --keep-dir x64\Release -maxrregcount=0  --machine 64 --compile -cudart shared -Xcompiler=-Ob2    -DNDEBUG -DENOKI_CUDA_COMPUTE_CAPABILITY=61 -DENOKI_CUDA=1 -DENOKI_BUILD=1 -DENOKI_AUTODIFF=1 -D"CMAKE_INTDIR=\"Release\"" -Denoki_cuda_EXPORTS -D"CMAKE_INTDIR=\"Release\"" -Denoki_cuda_EXPORTS -D_WINDLL -D_MBCS -Xcompiler "/EHsc /W1 /nologo /O2 /Fdenoki-cuda.dir\Release\vc142.pdb /FS /Zi  /MD " -o enoki-cuda.dir\Release\horiz.obj "D:\Mitsuba2\mitsuba2\ext\enoki\src\cuda\horiz.cu"" exited with code 1.
6>Done building project "enoki-cuda.vcxproj" -- FAILED.
17>Generating Code...
19>rgb2spec.c
6>common.cu
19>rgb2spec.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\rgb2spec\Release\rgb2spec.lib
17>Compiling...
17>queuing_mutex.cpp
7>Generating eLut.h
7>Generating toFloat.h
7>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/openexr/IlmBase/Half/CMakeLists.txt
17>queuing_rw_mutex.cpp
17>reader_writer_lock.cpp
6>jit.cu
7>half.cpp
17>recursive_mutex.cpp
17>semaphore.cpp
7>   Creating library D:/Mitsuba2/mitsuba2/ext_build/openexr/IlmBase/Half/Release/Half.lib and object D:/Mitsuba2/mitsuba2/ext_build/openexr/IlmBase/Half/Release/Half.exp
7>LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
7>Half.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\openexr\IlmBase\Half\Release\Half.dll
20>------ Build started: Project: CopyIlmBaseLibs, Configuration: Release x64 ------
17>spin_mutex.cpp
17>spin_rw_mutex.cpp
17>task.cpp
21>------ Build started: Project: enoki-autodiff, Configuration: Release x64 ------
17>task_group_context.cpp
17>tbb_main.cpp
17>tbb_misc.cpp
20>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/openexr/CMakeLists.txt
17>tbb_misc_ex.cpp
22>------ Build started: Project: b44ExpLogTable, Configuration: Release x64 ------
23>------ Build started: Project: dwaLookups, Configuration: Release x64 ------
21>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/enoki/CMakeLists.txt
22>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/openexr/OpenEXR/IlmImf/CMakeLists.txt
17>tbb_statistics.cpp
17>tbb_thread.cpp
23>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/openexr/OpenEXR/IlmImf/CMakeLists.txt
17>x86_rtm_rw_mutex.cpp
22>b44ExpLogTable.cpp
23>dwaLookups.cpp
17>rml_tbb.cpp
21>autodiff.cpp
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<float>::s_tape': class 'std::unique_ptr<enoki::Tape<float>,std::default_delete<enoki::Tape<float>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<float>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<float>,std::default_delete<enoki::Tape<float>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1222): message : see reference to class template instantiation 'enoki::Tape<float>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<double>::s_tape': class 'std::unique_ptr<enoki::Tape<double>,std::default_delete<enoki::Tape<double>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<double>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<double>,std::default_delete<enoki::Tape<double>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1225): message : see reference to class template instantiation 'enoki::Tape<double>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>::s_tape': class 'std::unique_ptr<enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>,std::default_delete<enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>,std::default_delete<enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1228): message : see reference to class template instantiation 'enoki::Tape<enoki::DynamicArray<enoki::Packet<float,8>>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(1410,1): warning C4251: 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<float,8>>>::m_value': struct 'enoki::DynamicArray<enoki::Packet<float,8>>' needs to have dll-interface to be used by clients of struct 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<float,8>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1228): message : see declaration of 'enoki::DynamicArray<enoki::Packet<float,8>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1229): message : see reference to class template instantiation 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<float,8>>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>::s_tape': class 'std::unique_ptr<enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>,std::default_delete<enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>,std::default_delete<enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1231): message : see reference to class template instantiation 'enoki::Tape<enoki::DynamicArray<enoki::Packet<double,8>>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(1410,1): warning C4251: 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<double,8>>>::m_value': struct 'enoki::DynamicArray<enoki::Packet<double,8>>' needs to have dll-interface to be used by clients of struct 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<double,8>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1231): message : see declaration of 'enoki::DynamicArray<enoki::Packet<double,8>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1232): message : see reference to class template instantiation 'enoki::DiffArray<enoki::DynamicArray<enoki::Packet<double,8>>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<enoki::CUDAArray<float>>::s_tape': class 'std::unique_ptr<enoki::Tape<enoki::CUDAArray<float>>,std::default_delete<enoki::Tape<enoki::CUDAArray<float>>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<enoki::CUDAArray<float>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<enoki::CUDAArray<float>>,std::default_delete<enoki::Tape<enoki::CUDAArray<float>>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1235): message : see reference to class template instantiation 'enoki::Tape<enoki::CUDAArray<float>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(1410,1): warning C4251: 'enoki::DiffArray<enoki::CUDAArray<float>>::m_value': struct 'enoki::CUDAArray<float>' needs to have dll-interface to be used by clients of struct 'enoki::DiffArray<enoki::CUDAArray<float>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1235): message : see declaration of 'enoki::CUDAArray<float>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1236): message : see reference to class template instantiation 'enoki::DiffArray<enoki::CUDAArray<float>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122,1): warning C4251: 'enoki::Tape<enoki::CUDAArray<double>>::s_tape': class 'std::unique_ptr<enoki::Tape<enoki::CUDAArray<double>>,std::default_delete<enoki::Tape<enoki::CUDAArray<double>>>>' needs to have dll-interface to be used by clients of struct 'enoki::Tape<enoki::CUDAArray<double>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(122): message : see declaration of 'std::unique_ptr<enoki::Tape<enoki::CUDAArray<double>>,std::default_delete<enoki::Tape<enoki::CUDAArray<double>>>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1238): message : see reference to class template instantiation 'enoki::Tape<enoki::CUDAArray<double>>' being compiled
21>D:\Mitsuba2\mitsuba2\ext\enoki\include\enoki/autodiff.h(1410,1): warning C4251: 'enoki::DiffArray<enoki::CUDAArray<double>>::m_value': struct 'enoki::CUDAArray<double>' needs to have dll-interface to be used by clients of struct 'enoki::DiffArray<enoki::CUDAArray<double>>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1238): message : see declaration of 'enoki::CUDAArray<double>'
21>D:\Mitsuba2\mitsuba2\ext\enoki\src\autodiff\autodiff.cpp(1239): message : see reference to class template instantiation 'enoki::DiffArray<enoki::CUDAArray<double>>' being compiled
17>Generating Code...
22>LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
22>b44ExpLogTable.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\openexr\OpenEXR\IlmImf\Release\b44ExpLogTable.exe
17>scheduler.cpp
23>LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
23>dwaLookups.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\openexr\OpenEXR\IlmImf\Release\dwaLookups.exe
24>------ Build started: Project: IlmImf, Configuration: Release x64 ------
24>Generating b44ExpLogTable.h
24>Generating dwaLookups.h
24> Building acceleration for DwaCompressor, 0.00 %
24> Building acceleration for DwaCompressor, 6.10 %
24> Building acceleration for DwaCompressor, 12.21 %
24> Building acceleration for DwaCompressor, 18.31 %
17>   Creating library D:/Mitsuba2/mitsuba2/ext_build/tbb/Release/tbb.lib and object D:/Mitsuba2/mitsuba2/ext_build/tbb/Release/tbb.exp
17>LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
24> Building acceleration for DwaCompressor, 24.41 %
24> Building acceleration for DwaCompressor, 30.52 %
17>tbb.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\tbb\Release\tbb.dll
24> Building acceleration for DwaCompressor, 36.62 %
24> Building acceleration for DwaCompressor, 42.72 %
24> Building acceleration for DwaCompressor, 48.83 %
24> Building acceleration for DwaCompressor, 54.93 %
24> Building acceleration for DwaCompressor, 61.04 %
24> Building acceleration for DwaCompressor, 67.14 %
24> Building acceleration for DwaCompressor, 73.24 %
24> Building acceleration for DwaCompressor, 79.35 %
24> Building acceleration for DwaCompressor, 85.45 %
24> Building acceleration for DwaCompressor, 91.55 %
24> Building acceleration for DwaCompressor, 97.66 %
24>Building Custom Rule D:/Mitsuba2/mitsuba2/ext/openexr/OpenEXR/IlmImf/CMakeLists.txt
24>ImfB44Compressor.cpp
21>LINK : fatal error LNK1181: cannot open input file 'Release\enoki-cuda.lib'
21>Done building project "enoki-autodiff.vcxproj" -- FAILED.
24>ImfDwaCompressor.cpp
24>Generating Code...
24>   Creating library D:/Mitsuba2/mitsuba2/ext_build/openexr/OpenEXR/IlmImf/Release/IlmImf.lib and object D:/Mitsuba2/mitsuba2/ext_build/openexr/OpenEXR/IlmImf/Release/IlmImf.exp
24>LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
24>IlmImf.vcxproj -> D:\Mitsuba2\mitsuba2\ext_build\openexr\OpenEXR\IlmImf\Release\IlmImf.dll
25>------ Build started: Project: mitsuba-core (mitsuba-core\mitsuba-core), Configuration: Release x64 ------
25>Building Custom Rule D:/Mitsuba2/mitsuba2/src/libcore/CMakeLists.txt
25>LINK : fatal error LNK1181: cannot open input file '..\..\ext_build\enoki\Release\enoki-autodiff.lib'
25>Done building project "mitsuba-core.vcxproj" -- FAILED.
26>------ Build started: Project: mitsuba-render (mitsuba-render\mitsuba-render), Configuration: Release x64 ------
26>Building Custom Rule D:/Mitsuba2/mitsuba2/src/librender/CMakeLists.txt
26>LINK : fatal error LNK1181: cannot open input file '..\libcore\Release\mitsuba-core.lib'
26>Done building project "mitsuba-render.vcxproj" -- FAILED.
27>------ Build started: Project: mitsuba, Configuration: Release x64 ------
27>Building Custom Rule D:/Mitsuba2/mitsuba2/src/mitsuba/CMakeLists.txt
27>mitsuba.cpp
27>D:\Mitsuba2\mitsuba2\src\mitsuba\mitsuba.cpp(99,9): warning C4566: character represented by universal-character-name '\u274C' cannot be represented in the current code page (1252)
27>LINK : fatal error LNK1181: cannot open input file '..\librender\Release\mitsuba-render.lib'
27>Done building project "mitsuba.vcxproj" -- FAILED.
========== Build: 22 succeeded, 5 failed, 0 up-to-date, 0 skipped ==========

As variants, I used scalar_rgb, scalar_spectral and gpu_autodiff_spectral. Sorry for bothering you guys.

[Speierers]

Hi,
D:/Mitsuba2/mitsuba2/ext/enoki/src/cuda/horiz.cu(81): error : namespace "std" has no member "min"

This was supposed to be fixed in enoki last week. Did you run git submodule update --recursive after pulling from master?

[LeonidMill]

Jepp, I cloned the repository using git clone --recursive https://github.com/mitsuba-renderer/mitsuba2. I also tried git pullall as described in the docs, but the compilation still fails.

[Speierers]

Could you try again after running:

git pull --rebase origin master
git submodule update --recursive

The mitsuba repo now points to the latest enoki commit.

[LeonidMill]

Hi @Speierers,

thank you for your answer. It now does compile successfully with your previously suggested changes in src/librender/CMakeLists.txt with a mitsuba.exe being created in src/mitsuba/Release. However, running mitsuba.exe does not seem to do anything, although calling setpath in the same command prompt. Additionally, the dist/python/mistuba subdirectory is empty and there is no mitsuba python module being created in the site-packages subdirectoy of python.

[wjakob]

This sounds to me more like a MSVC-specific issue. Perhaps you did not build the full "solution"?
The relevant mitsuba.exe binary should be in dist. Note that it is a command line executable, so it is not surprising that calling it does not do anything -- you'll have to run it with a scene as input.

[LeonidMill]

Sorry to bother you again, but how do I correctly install the mitsuba python package without coping files from the dist folder into the site-packages of the python installation path? Since pybind11 is used I was expecting that the mitsuba python package will be installed automatically.

[wjakob]

There is currently no mechanism for installing Mitsuba system-wide. For now, the only way to use it is from the dist folder by setting setpath.sh.

[LeonidMill]

Thank you for the clarification.