UnitScaleFactor is not referenced during fbx import.
Omniverse Create 2021.3.2
I have done some FBX import (Convert to USD) testing.
Since the fbx format has a fixed unit (default is cm), I checked two patterns.
Both are simple shapes with 1m Planes.
[ fbx_unit_test_cm.fbx (10.8 KB) ] (ASCII)
UnitScaleFactor = 1
Vertices : 50,0,50,-50,0,50,50,0,-50,-50,0,-50
[ fbx_unit_test_mm.fbx (10.8 KB) ] (ASCII)
UnitScaleFactor = 0.1
Vertices : 500,0,500,-500,0,500,500,0,-500,-500,0,-500
In this case, “fbx_unit_test_mm.fbx” did not convert to usd with the correct size in Omniverse.
It seems to be 10 times larger than the actual size.
From this, it seems that “Convert to USD” in the fbx file does not look at “UnitScaleFactor”.
This does not seem to be affected by “Use meter as world unit(cm by default)” in Import Options.
Some DCC tools had UnitScaleFactor = 0.1 on fbx export, and Omniverse seemed to load it at 10 times the actual size.