r.RayTracing.DebugDisableTriangleCull
VarUnreal Engine Var console variable.
rRayTracingDebugDisableTriangleCull
Description
Forces all ray tracing geometry instances to be double-sided by disabling back-face culling. This is useful for debugging and profiling. (default = 0)
Usage
r.RayTracing.DebugDisableTriangleCull [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

