- SheetSize is configurable. - TerrainRenderer gets to load it's sprites first, meaning we need one less texture.

OpenRa.Game/Graphics/Renderer.cs

@@ -9,6 +9,8 @@ namespace OpenRa.Game.Graphics
 {
 	class Renderer
 	{
+		internal static int SheetSize;
+
 		readonly GraphicsDevice device;
 		Texture[] palettes;
 		public Shader SpriteShader { get; private set; }    /* note: shared shader params */

OpenRa.Game/Graphics/SheetBuilder.cs

@@ -27,11 +27,13 @@ namespace OpenRa.Game.Graphics
 
 		public static void ForceNewSheet()
 		{
+			if( p == Point.Empty )
+				return;
 			current = NewSheet();
 			channel = NextChannel(null);
 		}
 
-		static Sheet NewSheet() { return new Sheet(renderer, new Size(512, 512)); }
+		static Sheet NewSheet() { return new Sheet( renderer, new Size( Renderer.SheetSize, Renderer.SheetSize ) ); }
 
 		static Renderer renderer;
 		static Sheet current = null;

OpenRa.Game/Graphics/TerrainRenderer.cs

@@ -20,10 +20,9 @@ namespace OpenRa.Game.Graphics
 		{
 			this.renderer = renderer;
 			this.map = map;
-			overlayRenderer = new OverlayRenderer( renderer, map );
-
-			Size tileSize = new Size( Game.CellSize, Game.CellSize );
 
+			Size tileSize = new Size( Game.CellSize, Game.CellSize );
+
 			SheetBuilder.ForceNewSheet();
 
 			var tileMapping = new Cache<TileReference, Sprite>(
@@ -49,7 +48,9 @@ namespace OpenRa.Game.Graphics
 			vertexBuffer.SetData( vertices );
 
 			indexBuffer = new IndexBuffer( renderer.Device, indices.Length );
-			indexBuffer.SetData( indices );
+			indexBuffer.SetData( indices );
+
+			overlayRenderer = new OverlayRenderer( renderer, map );
 		}
 
 		public void Draw( Viewport viewport )