Enables a visualization mode of the light grid density where red indicates the maximum light count has been reached (default = 00: off (default1: light count heatmap (red - close to overflow, increase r.PathTracing.LightGridMaxCount2: unique light lists (colors are a function of which lights occupy each cell3: area light visualization (green: point light sources only, blue: some area light sources
Usage
r.PathTracing.LightGridVisualize [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.