Fix 436 and 1251

Source/Editor/Gizmo/IGizmoOwner.cs

@@ -11,6 +11,11 @@ namespace FlaxEditor.Gizmo
     [HideInEditor]
     public interface IGizmoOwner
     {
+        /// <summary>
+        /// Gets the gizmos collection.
+        /// </summary>
+        FlaxEditor.Viewport.EditorViewport Viewport { get; }
+
         /// <summary>
         /// Gets the gizmos collection.
         /// </summary>

Source/Editor/Gizmo/TransformGizmoBase.cs

@@ -162,10 +162,23 @@ namespace FlaxEditor.Gizmo
 
             // Scale gizmo to fit on-screen
             Vector3 position = Position;
-            Vector3 vLength = Owner.ViewPosition - position;
-            float gizmoSize = Editor.Instance.Options.Options.Visual.GizmoSize;
-            _screenScale = (float)(vLength.Length / GizmoScaleFactor * gizmoSize);
-
+            if (Owner.Viewport.UseOrthographicProjection)
+            {
+                //[hack] this is far form ideal the View Position is in wrong location, any think using the View Position will have problem
+                //the camera system needs rewrite the to be a camera on springarm, similar how the ArcBallCamera is handled
+                //the ortho projection cannot exist with fps camera because there is no
+                // - focus point to calculate correct View Position with Orthographic Scale as a reference and Orthographic Scale from View Position
+                // with make the camera jump
+                // - and deaph so w and s movment in orto mode moves the cliping plane now
+                float gizmoSize = Editor.Instance.Options.Options.Visual.GizmoSize;
+                _screenScale = gizmoSize * (50 * Owner.Viewport.OrthographicScale);
+            }
+            else
+            {
+                Vector3 vLength = Owner.ViewPosition - position;
+                float gizmoSize = Editor.Instance.Options.Options.Visual.GizmoSize;
+                _screenScale = (float)(vLength.Length / GizmoScaleFactor * gizmoSize);
+            }
             // Setup world
             Quaternion orientation = GetSelectedObject(0).Orientation;
             _gizmoWorld = new Transform(position, orientation, new Float3(_screenScale));

Source/Editor/Viewport/EditorGizmoViewport.cs

@@ -41,6 +41,8 @@ namespace FlaxEditor.Viewport
                 Gizmos[i].Update(deltaTime);
             }
         }
+        /// <inheritdoc />
+        public EditorViewport Viewport => this;
 
         /// <inheritdoc />
         public GizmosCollection Gizmos { get; }

Source/Editor/Viewport/PrefabWindowViewport.cs

@@ -306,6 +306,8 @@ namespace FlaxEditor.Viewport
             var orient = ViewOrientation;
             ((FPSCamera)ViewportCamera).ShowActors(TransformGizmo.SelectedParents, ref orient);
         }
+        /// <inheritdoc />
+        public EditorViewport Viewport => this;
 
         /// <inheritdoc />
         public GizmosCollection Gizmos { get; }