Generate neural graphics datasets with Neural Graphics Data Capture in Unreal Engine
Introduction
Benefits of Neural Graphics Data Capture for game developers
Install and enable the plugin
Configure Level Blueprint capture controls
Run capture and verify outputs
Capture settings and troubleshooting
Next Steps

  Log an issue

  Fork and edit

  Discuss on Discord

Open the Level Blueprint

In your level:

  • Open the Blueprints drop-down.
  • Select Open Level Blueprint.

Image Alt Text:Screenshot of the Unreal Engine toolbar showing the Blueprints menu expanded with Open Level Blueprint option highlighted. Select this option to open the blueprint editor.Open Level Blueprint menu

Fast path: download and paste the ready-made blueprint snippet

On Windows, use PowerShell to download the prepared Level Blueprint snippet from this Learning Path repository:

    

        
        
wget "https://raw.githubusercontent.com/ArmDeveloperEcosystem/arm-learning-paths/main/content/learning-paths/mobile-graphics-and-gaming/neural-graphics-data-capture-unreal/assets/level_blueprint.txt" -OutFile ".\level_blueprint.txt"

Then in Unreal Editor:

  • Open level_blueprint.txt in a text editor and copy all text.
  • Select empty space in the Level Blueprint Event Graph.
  • Paste to create the full node graph.
  • Select Compile and Save.
Tip

If you use Git Bash with GNU wget, use wget -O level_blueprint.txt "https://raw.githubusercontent.com/ArmDeveloperEcosystem/arm-learning-paths/main/content/learning-paths/mobile-graphics-and-gaming/neural-graphics-data-capture-unreal/assets/level_blueprint.txt" instead.

Blueprint capture flow configuration

The snippet wires the following capture flow:

  • Gets the Neural Graphics Data Capture Subsystem.
  • Builds NGDCCaptureSettings from:
    • NGDCRenderingSettings
    • NGDCExportSettings
  • Calls Begin Capture on key C.
  • Calls End Capture on key V.

It also sets these export defaults to match this tutorial:

  • Dataset Dir: NeuralGraphicsDataset
  • Capture Name: 0000

Image Alt Text:Close-up screenshot of the Level Blueprint showing the capture settings nodes and the Neural Graphics Data Capture Subsystem being wired to Begin Capture and End Capture nodes. This shows how the settings are configured.Capture settings and subsystem wiring

The full event graph should look similar to this:

Image Alt Text:Screenshot of the complete Level Blueprint event graph showing keyboard input C connected to Begin Capture and keyboard input V connected to End Capture, with all necessary settings nodes connected. This is the expected final blueprint configuration.Complete blueprint graph

Continue to run the level in Standalone mode and test capture.

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