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 Portal rendering module for Godot
 
 Work in progress, not yet functional
+
+## Roadmap
+* Auto conversion of named room spatials and portal mesh instances to LRoom and LPortal DONE
+* Auto creation of mirror portals DONE
+* Recursive determine visibility PARTIAL
+  * (basic function works, culls backward pointing portals, tomorrow add clipping planes formed by portal edge and camera)
+* Investigate multiple passes (shadows, lights)