diff --git a/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/EditView3D.qml b/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/EditView3D.qml
index cd3ec158a4c..c61b787b04d 100644
--- a/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/EditView3D.qml
+++ b/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/EditView3D.qml
@@ -823,6 +823,13 @@ Item {
                 camera: viewRoot.usePerspective ? overlayPerspectiveCamera : overlayOrthoCamera
                 importScene: overlayScene
                 z: 2
+
+                environment: sceneEnv
+                SceneEnvironment {
+                    id: sceneEnv
+                    antialiasingMode: SceneEnvironment.MSAA
+                    antialiasingQuality: SceneEnvironment.High
+                }
             }
 
             Overlay2D {
diff --git a/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/SceneView3D.qml b/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/SceneView3D.qml
index c75472096e7..e59392b1ee2 100644
--- a/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/SceneView3D.qml
+++ b/share/qtcreator/qml/qmlpuppet/mockfiles/qt6/SceneView3D.qml
@@ -50,6 +50,13 @@ View3D {
         thresPerc = (grid_thresholds[thresIdx] - cameraZoomFactor) / (grid_thresholds[thresIdx] - grid_thresholds[thresIdx - 1]);
     }
 
+    environment: sceneEnv
+    SceneEnvironment {
+        id: sceneEnv
+        antialiasingMode: SceneEnvironment.MSAA
+        antialiasingQuality: SceneEnvironment.High
+    }
+
     Node {
         id: sceneHelpers