Compilation issue [Ubuntu 16.04, Clang 9, Optix 6.5, Cuda 10.0, NVIDIA-SMI 410.48]

[mitsuba-renderer]

Compilation issue [Ubuntu 16.04, Clang 9, Optix 6.5, Cuda 10.0, NVIDIA-SMI 410.48]

[acrlakshman]

I seem to have one small issue with running mitsuba. Looks like I need to run the $ source setpath.sh command every time I restart the terminal. How can I set/configure the environment variables permanently so that I don't have to do this over and over again?

If you are using bash shell: add source <path-to-folder-with-setpath.sh>/setpath.sh in ~/.bashrc

(or) echo 'source setpath.sh' >> ~/.bashrc.

If you are using zshell, add the same source <path-to-folder-with-setpath.sh>/setpath.sh in ~/.zshrc.

[chaosink]

The same compilation error occurs on my PC exactly after this commit 2c1b63f, which contains a rebase operation of Embree.

There is no python3-distutils for Ubuntu 16.04. Can't find it in the list: https://packages.ubuntu.com/xenial/python/
It is offered starting from 18.04:
https://packages.ubuntu.com/bionic/python/

System info:
Linux Mint 19.3 (base on Ubuntu 18.04)
clang version 9.0.0-2~ubuntu18.04.2 (tags/RELEASE_900/final)
OptiX 6.5
NVIDIA Driver 440.64.00
CUDA 10.2

[Speierers]

Thanks for reporting this!

I just fixed this in 4b39198. There was a bug when both Embree and Optix were enabled at the same time.

Regarding python3-distutils, please let me know if the lack of this package in Ubuntu 16.04 prevents you from building the Python bindings.

[abhinavvs]

Thanks for the response @Speierers and quick update. I tried building with the new commit and it ran without any errors (even without the python3-distutils and python3-sphinxcontrib.bebtex).

However, I got the following warning:

$ ninja
[127/264] Building CXX object src/shapes/CMakeFiles/rectangle-obj.dir/rectangle.cpp.o
../src/shapes/rectangle.cpp:211:67: warning: unused parameter 'cache' [-Wunused-parameter]
    void fill_surface_interaction(const Ray3f &ray_, const Float *cache,
                                                                  ^
1 warning generated.
[138/264] Building CXX object src/shapes/CMakeFiles/disk-obj.dir/disk.cpp.o
../src/shapes/disk.cpp:181:66: warning: unused parameter 'cache' [-Wunused-parameter]
    void fill_surface_interaction(const Ray3f &ray, const Float *cache,
                                                                 ^
1 warning generated.
[264/264] Generating dist/data/srgb.coeff

I will try running a few examples to see if this an issue or not.

[Speierers]

My bad, this should be fixed now: f30bd5c

Thanks!

[abhinavvs]

Thanks for the responses and updates to the package.

I seem to have one small issue with running mitsuba. Looks like I need to run the $ source setpath.sh command every time I restart the terminal. How can I set/configure the environment variables permanently so that I don't have to do this over and over again?

I am not too familiar with updating bash profiles, etc. Hence some detailed pointers would be very helpful for me.

[abhinavvs]

Thanks, @acrlakshman - it works well now.

@Speierers - Does Mitsuba2 work with OptiX 5.1?
My NVIDIA driver (410.48) isn't compatible with OptiX 6.5.

[Speierers]

@abhinavvs This was never tested. Although I doubt it would work with OptiX 5.1