fix animation2 indexing angle

src/kiri-mode/cam/client.js

@@ -1629,6 +1629,9 @@ function animate() {
 
 function updateStock(args, event) {
     if (isAnimate) {
+        if (isIndexed) {
+            SPACE.world.remove(camStock);
+        }
         return;
     }
 

src/kiri-mode/cam/slice.js

@@ -151,7 +151,7 @@ CAM.slice = function(settings, widget, onupdate, ondone) {
             for (let slice of slices) {
                 for (let poly of slice.camLines) {
                     for (let point of poly.points) {
-                        point.a = axisIndex;
+                        point.a = -axisIndex;
                     }
                 }
             }