AABBTree.h Geometric Tools Engine\Plugins\MetaHuman\MetaHumanCalibrationProcessing\Source\MetaHumanCalibrationLib\Private\carbon\include\carbon\geometry\AABBTree.h a function to compute the distance between a point and a triangle https://www.boost.org/LICENSE_1_0.txt Licencees P4 Git /Engine/Source/ThirdParty/Licenses