diff --git a/components/calc/models.vue b/components/calc/models.vue
index 063fdae..6a8a735 100644
--- a/components/calc/models.vue
+++ b/components/calc/models.vue
@@ -9,6 +9,8 @@ const controlsState = reactive({
     enableZoom: false,
     minPolarAngle: degToRad(60),
     maxPolarAngle: degToRad(100),
+    minAzimuthAngle: degToRad(0),
+    maxAzimuthAngle: degToRad(180),
 })
 const cameraStat = reactive({
     position: [0, 0, 5],