diff --git a/Assets/UniGLTF/Runtime/UniGLTF/Format/GltfSerializer.g.cs b/Assets/UniGLTF/Runtime/UniGLTF/Format/GltfSerializer.g.cs
index c695f91f8..943a14d19 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/Format/GltfSerializer.g.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/Format/GltfSerializer.g.cs
@@ -1127,12 +1127,12 @@ public static void Serialize_gltf_nodes_ITEM(JsonFormatter f, glTFNode value)
         Serialize_gltf_nodes__translation(f, value.translation);
     }
 
-    if(value.rotation!=null&&value.rotation.Length>=4){
+    if(value.rotation!=null&&value.rotation.Length>=4&&!value.rotation.SequenceEqual(new float[]{0, 0, 0, 1})){
         f.Key("rotation");                
         Serialize_gltf_nodes__rotation(f, value.rotation);
     }
 
-    if(value.scale!=null&&value.scale.Length>=3){
+    if(value.scale!=null&&value.scale.Length>=3&&!value.scale.SequenceEqual(new float[]{1, 1, 1})){
         f.Key("scale");                
         Serialize_gltf_nodes__scale(f, value.scale);
     }
diff --git a/Assets/UniGLTF/Runtime/UniGLTF/Format/glTFNode.cs b/Assets/UniGLTF/Runtime/UniGLTF/Format/glTFNode.cs
index 9d5bec958..a46d9208b 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/Format/glTFNode.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/Format/glTFNode.cs
@@ -20,11 +20,11 @@ namespace UniGLTF
         [JsonSchema(MinItems = 3, MaxItems = 3, SerializationConditions = new string[] { "!value.translation.SequenceEqual(new float[]{0, 0, 0})" })]
         public float[] translation;
 
-        [JsonSchema(MinItems = 4, MaxItems = 4)]
+        [JsonSchema(MinItems = 4, MaxItems = 4, SerializationConditions = new string[] { "!value.rotation.SequenceEqual(new float[]{0, 0, 0, 1})" })]
         [ItemJsonSchema(Minimum = -1.0, Maximum = 1.0)]
         public float[] rotation;
 
-        [JsonSchema(MinItems = 3, MaxItems = 3)]
+        [JsonSchema(MinItems = 3, MaxItems = 3, SerializationConditions = new string[] { "!value.scale.SequenceEqual(new float[]{1, 1, 1})" })]
         public float[] scale;
 
         [JsonSchema(Minimum = 0, ExplicitIgnorableValue = -1)]