MakotoChiba

hi ddemidov, Thank you very much for explain and suggest. I will try to check amgx. But don't you have any plan for it?

Thank you for your advice. However both CPU1 and CPU2 have same issue and also GPU. What is very strange is that sometimes the problem appears and sometimes it does...

Here is another test code. openvdb::FloatGrid::Ptr tempGrid; std::vector tempLS; tempLS.resize(400, NULL); DWORD start, end; for (int i = 0; i < 10; i++) { start = GetTickCount64(); tempGrid = openvdb::tools::meshToVolume(polymesh,...