add : rain vfx

Packages/manifest.json

@@ -13,6 +13,7 @@
     "com.unity.test-framework": "1.6.0",
     "com.unity.timeline": "1.8.10",
     "com.unity.ugui": "2.0.0",
+    "com.unity.visualeffectgraph": "17.3.0",
     "com.unity.visualscripting": "1.9.9",
     "com.unity.modules.accessibility": "1.0.0",
     "com.unity.modules.adaptiveperformance": "1.0.0",

Packages/packages-lock.json

@@ -233,6 +233,15 @@
         "com.unity.modules.imgui": "1.0.0"
       }
     },
+    "com.unity.visualeffectgraph": {
+      "version": "17.3.0",
+      "depth": 0,
+      "source": "builtin",
+      "dependencies": {
+        "com.unity.shadergraph": "17.3.0",
+        "com.unity.render-pipelines.core": "17.3.0"
+      }
+    },
     "com.unity.visualscripting": {
       "version": "1.9.9",
       "depth": 0,