Optix - denoise : OIDN gpu dependency ?

[nyue]

I have been building the usual dependency without CUDA and building MoonRay without CUDA/Optix, it builds and runs fine

Recently, I have been allocated a compute instance with a GPU so I am exploring Optix

When I enable Optix in MoonRay build, my compilation has this errors

[ 37%] Linking CXX executable denoise
cd /home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/cmd/denoise_cmd && /home/ubuntu/systems/cmake/cmake-3.23.1-linux-x86_64/bin/cmake -E cmake_link_script CMakeFiles/denoise.dir/link.txt --verbose=1
/usr/bin/c++ -O3 -DNDEBUG -Wl,--enable-new-dtags CMakeFiles/denoise.dir/main.cc.o -o denoise   -L/opt/MoonRay/installs/tbb-2020.3/tbb/lib/intel64/gcc4.8  -Wl,-rpath,/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/rndr:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/mcrt_denoise/lib/denoiser:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/displayfilter:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/pbr:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/lpe:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/rt:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/geom:/opt/MoonRay/installs/lib:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/shading:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/bvh/shading:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/common/file_resource:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/shading/ispc:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/bvh/shading/ispc:/usr/local/cuda/lib64:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/texturing/sampler:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/rendering/mcrt_common:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/grid_util:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/rec_time:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/scene/rdl2:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/fb_util:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/render/cache:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/fb_util/ispc:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/common/mcrt_util:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/render/util:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/math:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/math/ispc:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/common/platform:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/deepfile:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/moonray/lib/statistics:/opt/MoonRay/installs/tbb-2020.3/tbb/lib/intel64/gcc4.8:/home/ubuntu/projects/OpenMoonRay/mbuild/moonray/scene_rdl2/lib/render/logging: ../../lib/rendering/rndr/librendering_rndr.so ../../../mcrt_denoise/lib/denoiser/libdenoiser.so ../../lib/rendering/displayfilter/librendering_displayfilter.so ../../lib/rendering/pbr/librendering_pbr.so ../../lib/rendering/lpe/librendering_lpe.so ../../lib/rendering/rt/librendering_rt.so ../../lib/rendering/geom/librendering_geom.so /opt/MoonRay/installs/lib/libosdGPU.so /opt/MoonRay/installs/lib/libosdCPU.so ../../lib/rendering/shading/librendering_shading.so ../../lib/rendering/bvh/shading/librendering_bvh_shading.so ../../lib/common/file_resource/libcommon_file_resource.so ../../lib/rendering/shading/ispc/libshading_ispc.so ../../lib/rendering/shading/ispc/libshading_eval_ispc.so ../../lib/rendering/bvh/shading/ispc/libbvh_shading_ispc.so /usr/local/cuda/lib64/libcudart.so ../../lib/rendering/texturing/sampler/libtexturing_sampler.so /opt/MoonRay/installs/lib/libOpenImageIO.so.2.3.20 /opt/MoonRay/installs/lib/libOpenImageIO_Util.so.2.3.20 ../../lib/rendering/mcrt_common/librendering_mcrt_common.so ../../../scene_rdl2/lib/common/grid_util/libcommon_grid_util.so ../../../scene_rdl2/lib/common/rec_time/libcommon_rec_time.so /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib/x86_64-linux-gnu/libcrypto.so ../../../scene_rdl2/lib/scene/rdl2/libscene_rdl2.so ../../../scene_rdl2/lib/common/fb_util/libcommon_fb_util.so ../../../scene_rdl2/lib/render/cache/librender_cache.so ../../../scene_rdl2/lib/common/fb_util/ispc/libfb_util_ispc.so ../../lib/common/mcrt_util/libcommon_mcrt_util.so ../../../scene_rdl2/lib/render/util/librender_util.so ../../../scene_rdl2/lib/common/math/libcommon_math.so ../../../scene_rdl2/lib/common/math/ispc/libmath_ispc.so /opt/MoonRay/installs/lib/libjsoncpp.so /usr/lib/x86_64-linux-gnu/liblua5.4.so ../../../scene_rdl2/lib/common/platform/libcommon_platform.so ../../lib/deepfile/libdeepfile.so /opt/MoonRay/installs/lib/libIlmImfUtil-2_5.a /opt/MoonRay/installs/lib/libIlmImf-2_5.a /opt/MoonRay/installs/lib/libImath-2_5.a /opt/MoonRay/installs/lib/libIexMath-2_5.a /opt/MoonRay/installs/lib/libHalf-2_5.a /opt/MoonRay/installs/lib/libIlmThread-2_5.a /opt/MoonRay/installs/lib/libIex-2_5.a /usr/lib/x86_64-linux-gnu/libz.so ../../lib/statistics/libstatistics.so /usr/lib/x86_64-linux-gnu/libjpeg.so /opt/MoonRay/installs/lib/libopenvdb.so -ltbb /opt/MoonRay/installs/lib/libembree4.so.4 -latomic ../../../scene_rdl2/lib/render/logging/librender_logging.so /usr/lib/x86_64-linux-gnu/liblog4cplus.so /opt/MoonRay/installs/lib/libOpenImageDenoise.so.2.0.1 /usr/local/cuda/lib64/libcudart.so -Wl,-rpath-link,/opt/MoonRay/installs/lib
/usr/bin/ld: ../../lib/rendering/rt/librendering_rt.so: undefined reference to `moonray::pbr::ImageDistribution::~ImageDistribution()'
/usr/bin/ld: ../../lib/rendering/rt/librendering_rt.so: undefined reference to `vtable for moonray::pbr::ProjectiveCamera'
/usr/bin/ld: ../../lib/rendering/rt/librendering_rt.so: undefined reference to `moonray::pbr::PerspectiveCamera::PerspectiveCamera(scene_rdl2::rdl2::Camera const*)'
/usr/bin/ld: ../../lib/rendering/rt/librendering_rt.so: undefined reference to `moonray::pbr::PerspectiveCamera::computeFrustumImpl(moonray::mcrt_common::Frustum*, float, bool) const'
/usr/bin/ld: ../../lib/rendering/rt/librendering_rt.so: undefined reference to `moonray::pbr::Camera::update(scene_rdl2::math::Mat4<scene_rdl2::math::Vec4<double> > const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [moonray/moonray/cmd/denoise_cmd/CMakeFiles/denoise.dir/build.make:150: moonray/moonray/cmd/denoise_cmd/denoise] Error 1
make[2]: Leaving directory '/home/ubuntu/projects/OpenMoonRay/mbuild'
make[1]: *** [CMakeFiles/Makefile2:18655: moonray/moonray/cmd/denoise_cmd/CMakeFiles/denoise.dir/all] Error 2
make[1]: Leaving directory '/home/ubuntu/projects/OpenMoonRay/mbuild'
make: *** [Makefile:136: all] Error 2

I am wondering if the compilation of OIDN needs specific changes if it is to be use with MoonRay to be compiled with Optix enabled ?

I am already compiling OIDN with CUDA enabled.

I am building everything on Ubuntu 22.04. I hope the OS is not the culprit as I have built and run the non-Optix version just fine.

Thank you.

[jlanz]

Hi @nyue - the only OIDN build options/requirements that I am aware of are shown here:
https://github.com/dreamworksanimation/openmoonray/blob/main/building/Rocky9/CMakeLists.txt#L125

We haven't tried building for Ubuntu, but my guess is that it should be possible without any changes to the moonray code itself - although I am not sure if some of the build configuration might need changes.

Your error seems to indicate a problem with the lib/rendering/rt library. Have you tried cleaning up and doing a fresh build?

[nyue]

For now, I will temporarily disable the building of the denoise application.

At least, this allows me to run moonray_gui with XPU to see it's usage of the GPU.