Using moments to represent bounded signals for spectral rendering

Information

• Paper topic: Rendering
• Software type: Code
• Able to run a replicability test: True
• Replicability score: 0
• Software language: C++, python
• License: BSD
• Build mechanism: none given
• Dependencies: libpthread
• Documentation score {0,1,2}: 1
• Reviewer: Julie Digne <julie.digne@liris.cnrs.fr>
• Time spent for the test (build->first run, timeout at 100min): 20min

Source code information

• Code URL: http://momentsingraphics.de/Media/Siggraph2019/Peters2019-CompactSpectraCode.zip
• MD5 hash of the code archive: 549fe8072afd365d07b44df59ee26bf3

Comments

For building the LookUpTableCode, I used the following CMakeLists.txt linking with pthreads:
 cmake_minimum_required(VERSION 3.10)
 PROJECT(lut)
 SET(CMAKE_CXX_FLAGS "-O3")
 ADD_EXECUTABLE(lut main.cpp Grid3D.cpp NearestNeighborIndex.cpp)
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 target_link_libraries(lut PRIVATE Threads::Threads)

 I was able to generate the lut for Fourier coeffs to XYZ and test other configurations. The python scripts worked out of the box and produced paper-like results.

Misc. comments

Notice that the lut generation requires a lot of RAM (around 12Go).

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