Ignore default materials in material file handling

Task-number: QT3DS-3351
Change-Id: I1b39bfdf777d11c45e212463d3dcc773aa4585da
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/Authoring/Client/Code/Core/Doc/DocumentEditor.cpp b/src/Authoring/Client/Code/Core/Doc/DocumentEditor.cpp
index 65381efb..b821701d 100644
--- a/src/Authoring/Client/Code/Core/Doc/DocumentEditor.cpp
+++ b/src/Authoring/Client/Code/Core/Doc/DocumentEditor.cpp
@@ -3717,9 +3717,13 @@ public:
         auto parent = getOrCreateMaterialContainer();
         TInstanceList children;
         GetChildren(GetAssociatedSlide(parent), parent, children);
+        const QString defaultMaterialName
+                = getMaterialNameFromFilePath(m_Bridge.getDefaultMaterialName());
 
         for (auto &instance : children) {
             const auto name = GetName(instance).toQString();
+            if (name == defaultMaterialName)
+                continue;
             const QString path = getFilePathFromMaterialName(name);
             writeMaterialFile(getOrCreateMaterial(path), name, false, path);
         }