r.Nanite.MaterialBuffers.Defrag.LowWaterMark
VarUnreal Engine Var console variable.
rNaniteMaterialBuffersDefragLowWaterMark
Description
Ratio of used to allocated memory at which to decide to defrag the Nanite material data buffer.
Usage
r.Nanite.MaterialBuffers.Defrag.LowWaterMark [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

