Whether or not the material compiler respects the truncate LWC node or automatic transforms 0: no truncate (LWC always used even if asked to truncate 1: respect the truncate LWC nod 2: respect the truncate LWC node and automatic transforms
Usage
r.MaterialEditor.LWCTruncateMode [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.