compiles again

src/Engine/Asset/MaterialInstanceAsset.cpp

@@ -2,6 +2,7 @@
 #include "Material/MaterialInstance.h"
 #include "Material/Material.h"
 #include "Graphics/Graphics.h"
+#include "Asset/AssetRegistry.h"
 
 using namespace Seele;
 
@@ -21,8 +22,15 @@ MaterialInstanceAsset::~MaterialInstanceAsset()
 
 void MaterialInstanceAsset::save(ArchiveBuffer& buffer) const
 {
+    Serialization::save(buffer, baseMaterial->getAssetIdentifier());
+    material->save(buffer);
 }
 
 void MaterialInstanceAsset::load(ArchiveBuffer& buffer)
 {
+    std::string id;
+    Serialization::load(buffer, id);
+    material->load(buffer);
+    baseMaterial = AssetRegistry::findMaterial(id);
+    material->setBaseMaterial(baseMaterial);
 }