From 0e66c1421c302f221ce122db9d248499f15b0bea Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@gmail.com>
Date: Tue, 2 Feb 2016 15:51:32 -0500
Subject: [PATCH] Fix and optimize target sets/clears

---
 TrueCraft.Client/TrueCraftGame.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/TrueCraft.Client/TrueCraftGame.cs b/TrueCraft.Client/TrueCraftGame.cs
index a882eec..0e164be 100644
--- a/TrueCraft.Client/TrueCraftGame.cs
+++ b/TrueCraft.Client/TrueCraftGame.cs
@@ -81,6 +81,7 @@ namespace TrueCraft.Client
             Graphics.PreferredBackBufferWidth = UserSettings.Local.WindowResolution.Width;
             Graphics.PreferredBackBufferHeight = UserSettings.Local.WindowResolution.Height;
             Graphics.GraphicsProfile = GraphicsProfile.HiDef;
+            Graphics.PreparingDeviceSettings += PrepareDeviceSettings;
             Graphics.ApplyChanges();
             Window.ClientSizeChanged += Window_ClientSizeChanged;
             Client = client;
@@ -101,6 +102,11 @@ namespace TrueCraft.Client
             Components.Add(GamePadComponent);
         }
 
+        void PrepareDeviceSettings(object sender, PreparingDeviceSettingsEventArgs e)
+        {
+            e.GraphicsDeviceInformation.PresentationParameters.RenderTargetUsage = RenderTargetUsage.PreserveContents;
+        }
+
         void Window_ClientSizeChanged(object sender, EventArgs e)
         {
             if (GraphicsDevice.Viewport.Width < 640 || GraphicsDevice.Viewport.Height < 480)
@@ -418,7 +424,7 @@ namespace TrueCraft.Client
 
             GraphicsDevice.SetRenderTarget(null);
 
-            SpriteBatch.Begin();
+            SpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Opaque);
             SpriteBatch.Draw(RenderTarget, Vector2.Zero, Color.White);
             SpriteBatch.End();