diff --git a/view_sample_util.py b/view_sample_util.py
index a3824f8..a39a622 100644
--- a/view_sample_util.py
+++ b/view_sample_util.py
@@ -68,12 +68,18 @@ class ViewSampleUtil:
                 continue
             if np.dot(normal, look_at_point) < 0:
                 normal = -normal
+            normals.append(normal)
+            perturb_angle = np.radians(np.random.uniform(0, 30))
+            perturb_axis = np.random.normal(size=3)
+            perturb_axis /= np.linalg.norm(perturb_axis)
+            rotation_matrix = R.from_rotvec(perturb_angle * perturb_axis).as_matrix()
+            perturbed_normal = np.dot(rotation_matrix, normal)
+
             distance = np.random.uniform(*distance_range)
-            cam_position = look_at_point + distance * normal
-            
+            cam_position = look_at_point + distance * perturbed_normal
             look_at_points.append(look_at_point)
             cam_positions.append(cam_position)
-            normals.append(normal)
+            
             
         bm.free() 
         look_at_points = np.array(look_at_points)
@@ -124,15 +130,12 @@ class ViewSampleUtil:
 
             corrected_up_vector = np.cross(forward_vector, right_vector)
             rotation_matrix = np.array([right_vector, corrected_up_vector, forward_vector]).T
-            perturbation_angle = 0.01 
-            random_axis = np.random.randn(3)
-            random_axis /= np.linalg.norm(random_axis)
-            perturbation_rotation = R.from_rotvec(random_axis * perturbation_angle).as_matrix()
-            rotation_matrix = rotation_matrix @ perturbation_rotation
+
             cam_pose = np.eye(4)
             cam_pose[:3, :3] = rotation_matrix
             cam_pose[:3, 3] = cam_position_world
             cam_poses.append(cam_pose)
+
         filtered_cam_poses = []
         for cam_pose in cam_poses:
             if cam_pose[2, 3] > min_height_z: