r.RayTracing.Debug.InstanceOverlap.BoundingBoxScale
VarUnreal Engine Var console variable.
rRayTracingDebugInstanceOverlapBoundingBoxScale
Description
Scaling factor for instance bounding box extent for avoiding z-fighting. (default = 1.001
Usage
r.RayTracing.Debug.InstanceOverlap.BoundingBoxScale [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

