diff --git a/org.budnhead/graphics/GLCameraController.cs b/org.budnhead/graphics/GLCameraController.cs
index 829843a..e84adbf 100644
--- a/org.budnhead/graphics/GLCameraController.cs
+++ b/org.budnhead/graphics/GLCameraController.cs
@@ -23,8 +23,8 @@ namespace org.budnhead.graphics
 		private Point mouseCapturePosition;
 		private bool mouseCaptured;
 
-		public Limits LimitUpDown { get; set; } = new Limits(-MathHelper.PiOver2,-MathHelper.Pi / 16);
-		public Limits LimitLeftRight { get; set; } = new Limits(-Math.PI, Math.PI);
+		public Limits LimitUpDown { get; set; } = new Limits(MathHelper.PiOver2,MathHelper.Pi);
+		public Limits LimitLeftRight { get; set; } = new Limits(-MathHelper.Pi, MathHelper.Pi);
 
 
 		public GLCameraController(GLCamera camera, SceneWindow sceneWindow){
@@ -148,8 +148,18 @@ namespace org.budnhead.graphics
 			v *= mrot;
 			t *= mrot;
 
-			camera.View = v;
-			camera.Top = t;
+			float angle = (float)Math.Acos(Vector3.Dot(v, Vector3.UnitZ));
+
+			if ((camera.View.X * v.X <= 0)||(camera.View.Y * v.Y <= 0)){
+				angle = (float)((2 * Math.PI) - angle);
+			}
+
+			Console.WriteLine("Angle: {0}",angle);
+
+			if (LimitUpDown.ValueIsValid(angle)){
+				camera.View = v;
+				camera.Top = t;
+			}
 		}
 		public void rotateLeftRight(float arc)
 		{
@@ -166,8 +176,13 @@ namespace org.budnhead.graphics
 			v *= mrot;
 			t *= mrot;
 
-			camera.View = v;
-			camera.Top = t;
+			float angle = (float)Math.Acos(Vector2.Dot(v.Xy, Vector2.UnitY));
+
+			if (LimitLeftRight.ValueIsValid(angle))
+			{
+				camera.View = v;
+				camera.Top = t;
+			}
 		}
 
 		public void walk(float distance)