GLTF: Fix order of operations for buffers and accessors

Author: aaronfranke

modules/gltf/gltf_document.cpp

@@ -188,12 +188,6 @@ Error GLTFDocument::_serialize(Ref<GLTFState> p_state) {
 		return Error::FAILED;
 	}
 
-	/* STEP SERIALIZE ACCESSORS */
-	err = _encode_accessors(p_state);
-	if (err != OK) {
-		return Error::FAILED;
-	}
-
 	/* STEP SERIALIZE IMAGES */
 	err = _serialize_images(p_state);
 	if (err != OK) {
@@ -206,12 +200,6 @@ Error GLTFDocument::_serialize(Ref<GLTFState> p_state) {
 		return Error::FAILED;
 	}
 
-	/* STEP SERIALIZE BUFFER VIEWS */
-	err = _encode_buffer_views(p_state);
-	if (err != OK) {
-		return Error::FAILED;
-	}
-
 	/* STEP SERIALIZE NODES */
 	err = _serialize_nodes(p_state);
 	if (err != OK) {
@@ -242,6 +230,18 @@ Error GLTFDocument::_serialize(Ref<GLTFState> p_state) {
 		return Error::FAILED;
 	}
 
+	/* STEP SERIALIZE ACCESSORS */
+	err = _encode_accessors(p_state);
+	if (err != OK) {
+		return Error::FAILED;
+	}
+
+	/* STEP SERIALIZE BUFFER VIEWS */
+	err = _encode_buffer_views(p_state);
+	if (err != OK) {
+		return Error::FAILED;
+	}
+
 	for (Ref<GLTFDocumentExtension> ext : document_extensions) {
 		ERR_CONTINUE(ext.is_null());
 		err = ext->export_post(p_state);
@@ -6992,31 +6992,28 @@ Error GLTFDocument::_parse_asset_header(Ref<GLTFState> p_state) {
 Error GLTFDocument::_parse_gltf_state(Ref<GLTFState> p_state, const String &p_search_path) {
 	Error err;
 
-	/* PARSE EXTENSIONS */
-	err = _parse_gltf_extensions(p_state);
-	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
-
-	/* PARSE SCENE */
-	err = _parse_scenes(p_state);
-	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
-
-	/* PARSE NODES */
-	err = _parse_nodes(p_state);
-	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
-
 	/* PARSE BUFFERS */
 	err = _parse_buffers(p_state, p_search_path);
-
 	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
 
 	/* PARSE BUFFER VIEWS */
 	err = _parse_buffer_views(p_state);
-
 	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
 
 	/* PARSE ACCESSORS */
 	err = _parse_accessors(p_state);
+	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
+
+	/* PARSE EXTENSIONS */
+	err = _parse_gltf_extensions(p_state);
+	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
 
+	/* PARSE SCENE */
+	err = _parse_scenes(p_state);
+	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
+
+	/* PARSE NODES */
+	err = _parse_nodes(p_state);
 	ERR_FAIL_COND_V(err != OK, ERR_PARSE_ERROR);
 
 	if (!p_state->discard_meshes_and_materials) {