Make LevelMeshUpdater responsible for updating the tiles (playsim tells the mesh updater, the level mesh tells the tiles)

src/common/rendering/hwrenderer/data/hw_levelmesh.cpp

@@ -142,12 +142,6 @@ LevelMeshTileStats LevelMesh::GatherTilePixelStats()
 			stats.tiles.dirty++;
 			stats.pixels.dirty += area;
 		}
-		
-		if (tile.AlwaysUpdate)
-		{
-			stats.tiles.dirtyDynamic++;
-			stats.pixels.dirtyDynamic += area;
-		}
 	}
 	stats.tiles.total += Lightmap.Tiles.Size();
 	return stats;

src/common/rendering/hwrenderer/data/hw_levelmesh.h

@@ -252,7 +252,7 @@ struct LevelMeshTileStats
 {
 	struct Stats
 	{
-		uint32_t total = 0, dirty = 0, dirtyDynamic = 0;
+		uint32_t total = 0, dirty = 0;
 	};
 
 	Stats tiles, pixels;

src/common/rendering/hwrenderer/data/hw_lightmaptile.h

@@ -26,14 +26,6 @@ struct LightmapTileBinding
 	}
 };
 
-enum TileUpdatePolicy
-{
-	MapChanges,
-	AlwaysUltraQuality,
-	Always,
-	MapChangesUltraQuality
-};
-
 struct LightmapTile
 {
 	// Surface location in lightmap texture
@@ -68,7 +60,8 @@ struct LightmapTile
 	// True if the tile needs to be rendered into the lightmap texture before it can be used
 	bool NeedsUpdate = true;
 
-	uint8_t AlwaysUpdate = 0;
+	// Used to track if tile has already been added to the VisibleTiles list for this scene
+	int LastSeen = 0;
 
 	FVector2 ToUV(const FVector3& vert) const
 	{

src/common/rendering/vulkan/vk_lightmapper.cpp

@@ -94,22 +94,23 @@ void VkLightmapper::Raytrace(const TArray<LightmapTile*>& tiles)
 		lightmapRaytraceLast.active = true;
 
 		lightmapRaytraceLast.ResetAndClock();
+		fb->GetCommands()->PushGroup(fb->GetCommands()->GetTransferCommands(), "lightmap.total");
+		UploadUniforms();
 
-		SelectTiles(tiles);
-		if (selectedTiles.Size() > 0)
+		while (true)
 		{
-			fb->GetCommands()->PushGroup(fb->GetCommands()->GetTransferCommands(), "lightmap.total");
+			SelectTiles(tiles);
+			if (selectedTiles.Size() == 0)
+				break;
 
-			UploadUniforms();
 			Render();
 			Resolve();
 			if (lm_blur)
 				Blur();
 			CopyResult();
-
-			fb->GetCommands()->PopGroup(fb->GetCommands()->GetTransferCommands());
 		}
 
+		fb->GetCommands()->PopGroup(fb->GetCommands()->GetTransferCommands());
 		lightmapRaytraceLast.Unclock();
 	}
 }