$upaxis

From Valve Developer Community

The QC command $upaxis tells StudioMDL which axis in the SMD file should be considered 'up'. The default value is z.

Image:note.png Note: The command must be called before any animations - preferably on the first line of the QC.

Exporters

Need $upaxis
Maya
Do not need $upaxis
XSI
3DS Max
MilkShape

Usage

$upaxis [X|Y]