Print ufbx load warnings on import

modules/fbx/fbx_document.cpp

@@ -217,6 +217,16 @@ static ufbx_skin_deformer *_find_skin_deformer(ufbx_skin_cluster *p_cluster) {
 	return nullptr;
 }
 
+static String _find_element_name(ufbx_element *p_element) {
+	if (p_element->name.length > 0) {
+		return FBXDocument::_as_string(p_element->name);
+	} else if (p_element->instances.count > 0) {
+		return _find_element_name(&p_element->instances[0]->element);
+	} else {
+		return "";
+	}
+}
+
 struct ThreadPoolFBX {
 	struct Group {
 		ufbx_thread_pool_context ctx = {};
@@ -2071,6 +2081,32 @@ Error FBXDocument::_parse(Ref<FBXState> p_state, String p_path, Ref<FileAccess>
 		ERR_FAIL_V_MSG(ERR_PARSE_ERROR, err_buf);
 	}
 
+	const int max_warning_count = 10;
+	int warning_count[UFBX_WARNING_TYPE_COUNT] = {};
+	int ignored_warning_count = 0;
+	for (const ufbx_warning &warning : p_state->scene->metadata.warnings) {
+		if (warning_count[warning.type]++ < max_warning_count) {
+			if (warning.count > 1) {
+				WARN_PRINT(vformat("FBX: ufbx warning: %s (x%d)", _as_string(warning.description), (int)warning.count));
+			} else {
+				String element_name;
+				if (warning.element_id != UFBX_NO_INDEX) {
+					element_name = _find_element_name(p_state->scene->elements[warning.element_id]);
+				}
+				if (!element_name.is_empty()) {
+					WARN_PRINT(vformat("FBX: ufbx warning in '%s': %s", element_name, _as_string(warning.description)));
+				} else {
+					WARN_PRINT(vformat("FBX: ufbx warning: %s", _as_string(warning.description)));
+				}
+			}
+		} else {
+			ignored_warning_count++;
+		}
+	}
+	if (ignored_warning_count > 0) {
+		WARN_PRINT(vformat("FBX: ignored %d further ufbx warnings", ignored_warning_count));
+	}
+
 	err = _parse_fbx_state(p_state, p_path);
 	ERR_FAIL_COND_V(err != OK, err);