HALF_NRM_MIN      264 3rdparty/openexr/Half/half.h   #define HALF_NRM_MIN	6.10351562e-05f	// Smallest positive normalized half
HALF_NRM_MIN      274 3rdparty/openexr/Half/half.h   #define HALF_NRM_MIN	6.10351562e-05	// Smallest positive normalized half