Fix #3793

src/Engine/babylon.engine.ts

@@ -297,6 +297,7 @@
             { key: "Firefox/59", capture: null, captureConstraint: null, targets: ["uniformBuffer"] },
             { key: "Macintosh", capture: null, captureConstraint: null, targets: ["textureBindingOptimization"] },
             { key: "iPhone", capture: null, captureConstraint: null, targets: ["textureBindingOptimization"] },
+            { key: "iPad", capture: null, captureConstraint: null, targets: ["textureBindingOptimization"] }
         ];
 
         public static Instances = new Array<Engine>();