diff --git a/openVulkanoCpp/Scene/MeshWriter.cpp b/openVulkanoCpp/Scene/MeshWriter.cpp
index 03329aa..7ee4ab5 100644
--- a/openVulkanoCpp/Scene/MeshWriter.cpp
+++ b/openVulkanoCpp/Scene/MeshWriter.cpp
@@ -22,7 +22,7 @@ namespace OpenVulkano::Scene
 	{
 		std::ofstream file(filePath);
 
-		if (!file.is_open())
+		if (!file.is_open()) [[unlikely]]
 			throw std::runtime_error("Failed to open file '" + filePath + "' for writing!");
 		
 		WriteObjContents(geometry, "", file);
@@ -32,7 +32,7 @@ namespace OpenVulkano::Scene
 	void MeshWriter::WriteAsUSD(Geometry* geometry, const std::string& filePath)
 	{
 		std::ofstream file(filePath);
-		if (!file.is_open())
+		if (!file.is_open()) [[unlikely]]
 			throw std::runtime_error("Failed to open file '" + filePath + "' for writing!");
 		WriteUsdContents(file, geometry);
 		file.close();
@@ -45,20 +45,19 @@ namespace OpenVulkano::Scene
 		{
 			std::stringstream objContents;
 			WriteObjContents(geometry, DEFAULT_OBJ_MATERIAL_NAME, objContents);
-			auto objContentsStr = objContents.str();
-			auto objDesc = OpenVulkano::FileDescription::MakeDescriptionForFile("model.obj", objContentsStr.size());
+			std::string objContentsStr = objContents.str();
+			FileDescription objDesc = FileDescription::MakeDescriptionForFile("model.obj", objContentsStr.size());
 			zipWriter.AddFile(objDesc, objContentsStr.data());
 		}
 		{
-			auto mtlContentsStr = DEFAULT_OBJ_MATERIAL_CONTENTS;
-			auto mtlDesc = OpenVulkano::FileDescription::MakeDescriptionForFile("material.mtl", mtlContentsStr.size());
-			zipWriter.AddFile(mtlDesc, mtlContentsStr.data());
+			FileDescription mtlDesc = FileDescription::MakeDescriptionForFile("material.mtl", DEFAULT_OBJ_MATERIAL_CONTENTS.size());
+			zipWriter.AddFile(mtlDesc, DEFAULT_OBJ_MATERIAL_CONTENTS.data());
 		}
 
 		if (!texturePath.empty() && std::filesystem::exists(texturePath))
 		{
-			auto textureFile = MemMappedFile(texturePath);
-			auto texDesc = OpenVulkano::FileDescription::MakeDescriptionForFile("texture.png", textureFile.Size());
+			MemMappedFile textureFile(texturePath);
+			FileDescription texDesc = FileDescription::MakeDescriptionForFile("texture.png", textureFile.Size());
 			zipWriter.AddFile(texDesc, textureFile.Data());
 		}
 	}
@@ -70,15 +69,15 @@ namespace OpenVulkano::Scene
 		{
 			std::stringstream usdFile;
 			WriteUsdContents(usdFile, geometry);
-			auto usdFileStr = usdFile.str();
-			auto usdDesc = OpenVulkano::FileDescription::MakeDescriptionForFile("geometry.usda", usdFileStr.size());
+			std::string usdFileStr = usdFile.str();
+			FileDescription usdDesc = FileDescription::MakeDescriptionForFile("geometry.usda", usdFileStr.size());
 			zipWriter.AddFile(usdDesc, usdFileStr.data());
 		}
 
 		if (!texturePath.empty() && std::filesystem::exists(texturePath))
 		{
-			auto textureFile = MemMappedFile(texturePath);
-			auto texDesc = OpenVulkano::FileDescription::MakeDescriptionForFile("texture.png", textureFile.Size());
+			MemMappedFile textureFile(texturePath);
+			FileDescription texDesc = FileDescription::MakeDescriptionForFile("texture.png", textureFile.Size());
 			zipWriter.AddFile(texDesc, textureFile.Data());
 		}
 	}
diff --git a/openVulkanoCpp/Scene/ObjEncoder.hpp b/openVulkanoCpp/Scene/ObjEncoder.hpp
index 68fc959..f69eced 100644
--- a/openVulkanoCpp/Scene/ObjEncoder.hpp
+++ b/openVulkanoCpp/Scene/ObjEncoder.hpp
@@ -29,31 +29,41 @@ map_Kd texture.png
 
 		if (materialName.size() != 0)
 		{
-			objContent << "mtllib material.mtl\n";
-			objContent << "usemtl " << materialName << "\n";
+			std::string_view content = "mtllib material.mtl\n";
+			objContent.write(content.data(), content.size());
+			
+			content = "usemtl ";
+			objContent.write(content.data(), content.size());
+
+			objContent.write(materialName.data(), materialName.size());
+			objContent.write("\n", 1);
 		}
 
 		for (int i = 0; i < geometry->vertexCount; ++i)
 		{
 			const auto& v = geometry->vertices[i];
-			objContent << fmt::format("v {} {} {}\n", v.position.x, v.position.y, v.position.z);
+			const std::string content = fmt::format("v {} {} {}\n", v.position.x, v.position.y, v.position.z);
+			objContent.write(content.data(), content.size());
 		}
 		for (int i = 0; i < geometry->vertexCount; ++i)
 		{
 			const auto& v = geometry->vertices[i];
-			objContent << fmt::format("vn {} {} {}\n", v.normal.x, v.normal.y, v.normal.z);
+			const std::string content = fmt::format("vn {} {} {}\n", v.normal.x, v.normal.y, v.normal.z);
+			objContent.write(content.data(), content.size());
 		}
 		for (int i = 0; i < geometry->vertexCount; ++i)
 		{
 			const auto& v = geometry->vertices[i];
-			objContent << fmt::format("vt {} {}\n", v.textureCoordinates.x, v.textureCoordinates.y);
+			const std::string content = fmt::format("vt {} {}\n", v.textureCoordinates.x, v.textureCoordinates.y);
+			objContent.write(content.data(), content.size());
 		}
 		for (int i = 0; i < geometry->indexCount; i += 3)
 		{
 			uint32_t i0 = geometry->GetIndex(i + 0) + 1;
 			uint32_t i1 = geometry->GetIndex(i + 1) + 1;
 			uint32_t i2 = geometry->GetIndex(i + 2) + 1;
-			objContent << fmt::format("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\n", i0, i1, i2);
+			const std::string content = fmt::format("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\n", i0, i1, i2);
+			objContent.write(content.data(), content.size());
 		}
 	}
 }
\ No newline at end of file
diff --git a/openVulkanoCpp/Scene/UsdEncoder.hpp b/openVulkanoCpp/Scene/UsdEncoder.hpp
index bd795af..40d4632 100644
--- a/openVulkanoCpp/Scene/UsdEncoder.hpp
+++ b/openVulkanoCpp/Scene/UsdEncoder.hpp
@@ -32,7 +32,7 @@ def Xform "root" (
     def Xform "model"
     {
         custom string userProperties:blender:object_name = "model"
-        float3 xformOp:rotateXYZ = (90, -0, 0)
+        float3 xformOp:rotateXYZ = (0, -0, 0)
         float3 xformOp:scale = (1, 1, 1)
         double3 xformOp:translate = (0, 0, 0)
         uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]