two fingers pan if closer only

src/Cameras/Inputs/babylon.arcRotateCameraPointersInput.ts

@@ -139,7 +139,7 @@ module BABYLON {
                             return;
                         }
 
-                        if (Math.abs(pinchDistance - previousPinchDistance) > this.camera.pinchToPanMaxDistance) {
+                        if (pinchDistance > this.camera.panMaxFingersDistance || Math.abs(pinchDistance - previousPinchDistance) > this.camera.pinchToPanMaxDistance) {
                             this.camera
                                 .inertialRadiusOffset += (pinchSquaredDistance - previousPinchSquaredDistance) /
                                 (this.pinchPrecision *

src/Cameras/babylon.arcRotateCamera.ts

@@ -57,7 +57,10 @@ module BABYLON {
         public inertialPanningY: number = 0;
 
         @serialize()
-        public pinchToPanMaxDistance: number = 2;
+        public pinchToPanMaxDistance: number = 3;
+
+        @serialize()
+        public panMaxFingersDistance: number = 100;
 
         @serialize()
         public panningDistanceLimit: number = null;