Draggable clipping plane (buggy...)

TODO: refactor to avoid unnecessary object creation

js/state.js

@@ -2,6 +2,8 @@ export const AppState = {
     // The root scene object
     root: null,
     initialRotation: null,
+    camera: ATON.Nav._camera,
+    renderer: ATON._renderer,
     scenes : [],
     ambientOcclusion : true,
     shadows : true,
@@ -11,7 +13,11 @@ export const AppState = {
         enabled: false,
         helper : null,
         rootBoundingBox: null,
-        listenerAdded: false,
+        listeners: {
+            button: false,
+            plane: false,
+        },
+        vector: null,
     }
 }