diff --git a/src/mightypork/rogue/world/map/MapAccess.java b/src/mightypork/rogue/world/map/MapAccess.java
index 4172818..aa4f3b6 100644
--- a/src/mightypork/rogue/world/map/MapAccess.java
+++ b/src/mightypork/rogue/world/map/MapAccess.java
@@ -40,5 +40,8 @@ public interface MapAccess {
 	long getSeed();
 
 
+	/**
+	 * @return level-specific noise generator
+	 */
 	NoiseGen getNoiseGen();
 }
diff --git a/src/mightypork/rogue/world/map/TileRenderContext.java b/src/mightypork/rogue/world/map/TileRenderContext.java
index 625dff0..eca6b92 100644
--- a/src/mightypork/rogue/world/map/TileRenderContext.java
+++ b/src/mightypork/rogue/world/map/TileRenderContext.java
@@ -27,6 +27,9 @@ public final class TileRenderContext implements RectBound {
 	{
 		this.map = map;
 		this.tiler = drawArea.tiles(map.getWidth(), map.getHeight());
+		
+		this.tiler.setOverlap(0.001);		
+		
 		this.noise = map.getNoiseGen();
 	}
 	
@@ -59,7 +62,7 @@ public final class TileRenderContext implements RectBound {
 	@Override
 	public Rect getRect()
 	{
-		return tiler.tile(x, y).grow(0.01); // important to avoid gaps b/w tiles when scaled.
+		return tiler.tile(x, y);
 	}
 	
 	
diff --git a/src/mightypork/util/constraints/rect/builders/TiledRect.java b/src/mightypork/util/constraints/rect/builders/TiledRect.java
index 244a328..de8a200 100644
--- a/src/mightypork/util/constraints/rect/builders/TiledRect.java
+++ b/src/mightypork/util/constraints/rect/builders/TiledRect.java
@@ -21,7 +21,7 @@ public class TiledRect extends RectProxy {
 	final private Num perCol;
 	
 	/** Left top tile */
-	final private Rect aTile;
+	private Rect aTile;
 	
 	
 	public TiledRect(Rect source, int horizontal, int vertical)
@@ -37,6 +37,17 @@ public class TiledRect extends RectProxy {
 	}
 	
 	
+	/**
+	 * Set tile overlap. Applies only to tile, not span.
+	 * 
+	 * @param overlap how far to overlap to neighbouring tiles on all sides
+	 */
+	public void setOverlap(double overlap)
+	{
+		aTile = aTile.grow(overlap);
+	}
+	
+	
 	/**
 	 * Get a tile.
 	 *