Unreal Engine

The A23D Asset Importer for Unreal Engine adds an A23D button to the Content Browser toolbar. With the plugin enabled, you can choose Unreal Engine on an A23D asset page and click Send to Unreal Engine to download and import the asset directly into your project.

Frequently Asked Questions

Common questions about using A23D assets with Unreal Engine.

Do I need a plugin to use A23D assets in Unreal Engine?

The A23D Asset Importer is the recommended way to use A23D assets in Unreal Engine because it supports direct website imports, disk imports, automatic material setup, and organized Content Browser folders. You can still download files manually from A23D and import supported formats yourself.

Which Unreal Engine versions are supported?

The latest A23D Asset Importer is compatible with Unreal Engine 5.4 or newer, while also supporting UE 4.27–5.3, across Windows, macOS, and Linux platforms.

How do I install the A23D Asset Importer for Unreal Engine?

Download the plugin from the Unreal Engine integration page, unzip it, and copy the A23DAssetImporterPlugin folder into either your project's Plugins folder or your Unreal Engine version's Engine/Plugins folder. Then open Unreal Engine, enable A23D Asset Importer from Edit > Plugins, and restart the editor.

How do I download an asset from the website to Unreal Engine?

Open your Unreal Engine project and make sure the A23D button is visible in the Content Browser toolbar. On the A23D website, open an asset page, choose Unreal Engine in the Software dropdown, choose a resolution, and click Send to Unreal Engine. The A23D toolbar button shows progress while the asset downloads, unzips, imports, and finishes.

Can I import an A23D asset I already downloaded?

Yes. Click the A23D button in the Content Browser toolbar, or go to File > Import A23D Assets, then select the downloaded A23D .zip file or a file from an extracted A23D asset folder.

Where do imported assets live in the Content Browser?

The importer organizes content under /Game/A23D/:

• /Game/A23D/3D_Models for imported 3D models
• /Game/A23D/PBR_Textures for imported PBR material instances
• /Game/A23D/Resource_Assets for raw imported source assets

Which file format should I download for manual use in Unreal Engine?

For manual imports, .fbx is usually best for 3D models. If you are using the plugin's website import flow, choose Unreal Engine on the asset page and click Send to Unreal Engine instead.

How are A23D PBR textures wired up in Unreal Engine?

The Asset Importer creates Material Instances from A23D base materials and connects the available PBR maps, including albedo, normal, roughness, metallic, ambient occlusion, height, opacity, emissive, IOR, translucency, and other supported texture channels.

Are A23D models Nanite-ready?

Yes. A23D meshes are clean, manifold geometry that converts to Nanite cleanly in UE5+. Right-click a Static Mesh and choose Nanite → Enable for hero pieces; this gives you full geometry resolution at any distance with virtually no performance cost.

How do I use A23D Decals in Unreal Engine?

A23D decals import as PBR materials that you place into your level via the Decal Actor or Modeling Tools. They blend non-destructively over Lumen-lit surfaces and respect Lumen, ray tracing, and path tracing.

How do I use A23D IES lighting profiles in Unreal Engine?

Drag the A23D .ies file into the Content Browser to import it as an IES Texture, then assign it to a Spot Light or Point Light's IES Texture property. The luminaire emits with the manufacturer-accurate distribution, integrating fully with Lumen and hardware ray tracing.

What texture resolution should I use in Unreal Engine?

Use 4K maps for hero materials seen up close, 2K for general scene assets, and 1K for distant or background props. This balances visual quality and performance. A23D provides multiple resolution options for each asset, so you can choose the best fit for your project.