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Best practices
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screenshot unreal app in windows ci pipeline
Is there a best practice to capture screenshots of an unreal app when performing a test in a gitlab ci pipeline? gemini suggest using movie render queue w a vnc session or NICE DCV to stimulate a user ...
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109
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How to know when the Unreal editor has finished loading a level
I need to register a function with IAssetRegistry.OnAssetUpdated() when the Unreal Editor has finished loading the default level.
I tried different approaches, but Unreal tends to trigger Actor ...
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159
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Unreal Engine / C++ : i can't access methods of a "TScriptInterface" object
In my Unreal Project, I got an interface "FVariableBloc" that I use to stock something I call a variable, with basically just a name, a float value, and some setting information :
...
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Unreal Engine 5.6.1 (also 5.8) will not work on macOS 26.0 + Xcode 26.0
When I try to run UE 5.6.1, or UE 5.8 (Built from Source Code), I get the following metal error:
I have tried modifying the Apple_SDK.json and setting the Max versions to 26.0.0 and LLVM versions are ...
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Unreal UI capture feature image quality degradation
I'm developing in Unreal. I created a feature that creates an image UI from a Blueprint widget, then crops and downloads the image within that area.
However, when I check the saved image, the image ...
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2
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158
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In UE 5.4.4, cannot find C++ folder
When I make project with ver5.4.4 C++ project UE, I cannot find folder C++.
Even though I made C++ file in visual studio and generate UE, there is no folder in editor.
Is there any way out to fix this ...
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82
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Why Unreal does not support UMG animation tick for FDefaultGameMoviePlayer
As we all knows, when we LoadMap in Unreal engine, the main thread will be blocked, and the UI will be stuck. So Unreal provide us FDefaultGameMoviePlayer, which uses another thread (...
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"Move Component To" blueprint not working - Unreal Engine
I'm using Unreal Engine 5 Blueprints and I am trying to create a door where if the object detects collision, it will move by -5 units along the X axis. Instead, it is moving -1.5 units along the Z ...
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459
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How can I fix a "Failed to open descriptor file" error for an Unreal 5.6 C++ project with Xcode on a Mac?
I created a C++ project in Unreal Editor 5.6 on a Mac. It opened the project in Xcode. The project builds in Xcode with no errors but then crashes with these error messages:
LogProjectManager: Error: ...
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153
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Mouse Follow Lag in Unreal Engine Editor (Not In-Game) – Still Present in 5.4 and 5.6
I’m experiencing a strange issue with the Unreal Engine Editor — the game itself runs smoothly, but the editor UI (such as menus, content browser, and explorer) is lagging behind the mouse movements. ...
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165
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Editor Utility Widget OnInitialized method is never called
I've created an Editor Utility Widget blueprint in Unreal. This widget contains another widget blueprint that inherits Common Tab List Widget Base. This class needs OnInitialized to be called to set ...
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One questions about Archetype and chunk of Unreal 5 Mass System
In the source code of the MassEntity module of Unreal 5, Is the raw memory of all chunks under the same Archetype contiguous?
// This is one chunk within an archetype
struct FMassArchetypeChunk
{
...
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137
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How to extend HLSL custom nodes in material editor
I want to sample directional light shadowmap in material editor as a node, in a forward rendered UE5.5 game. I want this to work on both mobile and PC. Basically I need a "...
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174
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Anyone knows how to open this zipped Unreal Engine 5 project?
So, I've a zip file that contains all the project files including Content and Config files.
However, after I unzip it the file doesn't include .uproject file.
I tried to unpak the .pak file and run ...
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In unreal, how do I transfer scale animations from one IK rig to another?
In unreal 5, I am trying to transfer old animations to a new rig. I am using the IK Rig and IK Retargeter, however, some of the old animations include scale animations, and I am unsure how to transfer ...