Leonhard Gruenschloss optimized Halton sequence /Engine/Source/Runtime/Renderer/Private/HaltonUtilities.* Using Faure permutation table to accelerate evaluation of an arbitrary dimension of a given Halton Sequence http://gruenschloss.org/mcqmclfsr/mcqmclfsr.cpp; https://opensource.org/licenses/MIT Licensees Git P4 /Engine/Source/ThirdParty/Licenses/LeonhardGruenschlossExQMCSequences_License.txt