diff --git a/app/android/java/com/khronos/vulkan_samples/CameraDataFetcher.java b/app/android/java/com/khronos/vulkan_samples/CameraDataFetcher.java
index 7d11959..4a228cd 100644
--- a/app/android/java/com/khronos/vulkan_samples/CameraDataFetcher.java
+++ b/app/android/java/com/khronos/vulkan_samples/CameraDataFetcher.java
@@ -18,20 +18,20 @@ public class CameraDataFetcher {
 
     // 数据模型类
     public static class CameraData {
-        public float fov;
-        public float x;
-        public float y;
+        public float fov = 47;
+        public float x = -0.5f;
+        public float y = -0.51f;
         public float z;
-        public float sx;
-        public float sy;
-        public float sz;
+        public float sx = 1;
+        public float sy = 1;
+        public float sz = 1;
         public float rotx;
         public float roty;
         public float rotz;
         public float camx;
         public float camy;
         public float camz;
-        public float z_rate;
+        public float z_rate = -1;
         public float dashSize = 5;
         public float gapSize = 3;
         public float dashOffset = 0;
diff --git a/app/android/java/com/khronos/vulkan_samples/MainActivity.java b/app/android/java/com/khronos/vulkan_samples/MainActivity.java
index 82bd71f..22254de 100644
--- a/app/android/java/com/khronos/vulkan_samples/MainActivity.java
+++ b/app/android/java/com/khronos/vulkan_samples/MainActivity.java
@@ -291,7 +291,7 @@ public class MainActivity extends GameActivity implements FaceLandmarkerHelper.L
         passDataToNative(nativeBuffer, index, width, height);
     }
 
-    public float z_rate = 1.0f;
+    public float z_rate = -1.0f;
 
     public native void passDataToNative(ByteBuffer buffer, int pointCount, int width, int height);
     public native void upDateCameraData(float fov, float x, float y, float z, float sx, float sy, float sz, float rotx, float roty, float rotz,