roundNBit        1406 3rdparty/openexr/IlmImf/ImfCRgbaFile.cpp         (Imf::roundNBit (n), Imf::RgbaChannels (channels));
roundNBit         153 3rdparty/openexr/IlmImf/ImfLut.h     roundNBit (int n): n(n) {}