The vertex per texel counts means no urgent need for bump map.
Recently Windows10 updgrade cycle began failing daily so I finally purchased new system drive, unplugged others and did a clean install.
With a basic development environment we begin baking tiles and find virtual memory configured as suspected in an unconfigured highly crashable state.
After several more crashes and restarts we end up hardcoding 100GB of new high performance SSD for swap space or in windows lingo minumum - maximum fixed virtual memory advanced performance settings
After only 1 day the old SSD feels sluggish and slow and the HD completely retarded. Never mind.
|half baked tile cache configured with large virtual memory footprint|