ArchViz UI3 Documentation 2026

Table of Content
Table Of Content
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New in 2026
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Quick Guide
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Video Guides
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Getting Started
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UI Layout
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Var Actor
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Edit Scene
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Designer
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Other Features
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Modes
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Blueprints
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Cost Tracking
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Multi-Unit-Prj
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Google Data Sheets
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FAQ
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Fix Bugs
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Version History

UI3 Quick Guide

Quick Guide for the Arch Viz UI3 User Interface available on FAB and the Unreal Marketplace.

Content:

Quick Start Video

Installation

Migrate To Your Project

Plugins

World Settings - Game Mode

Info Map - General Settings

Interface Layout

Scene Settings

Object Interaction

Packaging

Quick Start Video

YouTube video accompanying this guide.

This is a bit out of date but overall still valid.

Installation

Open the Epic Games Launcher where you will find the ArchViz User Interface 3 after buying in on FAB

Click Create Project to download the latest version and install it. This may take a while.

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Migrate To Your Project

Open the UI3 project and use the Migrate function in the content browser to copy the UI3 to your own project. The UI folder contains all the blueprints and widgets for the interface to function. Or you can migrate the entire ArchVizUI_V3 project to use the assets coming with it.

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Plugins

The following plugins should be installed in your project even if you don't intend to use them:
  • Enhanced Input - controls input actions from keyboard or gamepad
  • Sun Position Calculator - Accurate sun positioning for geo location
  • OpenXR - standard used for VR headsets. - You may need a different one.

Packaging will fail if these plugins are missing.

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World Settings - Game Mode

Set the Game Mode Override in the World Settings. Choose one of the four SDot UI3 Game Modes from the list based on your project's needs.

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Info Map - General Settings

The blueprint BP_SDOTUI3_InfoMap needs to be placed in the main (non-streaming) level of your scene. It contains most of the data to run the UI.

Floorplan

Add a floorplan in the floorplan section, use the Floorplan Scale to adjust its size. Then align it to the building. Use a white texture if no floorplan is available.

UI Preset

Choose a preset from the list and click the Apply Preset to apply some use-specific settings to the project.

Streaming Levels

Add the exact names of streaming levels to this list.

It's recommended to split the scene content into sub levels, like 'furniture' or 'decoration' for trouble shooting and more.

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Interface Layout

The Main Menu Layout is where the UI is designed. Either in a Data Table.

In older version the layout is stored in the Main Menu Layout array

Each row or array element represents one main menu button.

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UI Features

UI features are added in the Feature Panels array.

Some features can be placed more than once and need the Feature ID to identify them. The ID is usually the Row Name of the feature's data table.

In older version features were defined in arrays and not data tables. In that case the Feature ID is the array ID.

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Scene Settings

Most App Settings can be changed with a slider during the walkthrough. The slider values are stored in the datatable assigned to DT Settings.

The Default Value will be applied at app start if the box for Load Default is ticked.

In earlier versions the slider values are stored in Slider Value arrays and the default is always loaded.

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Object Interaction

Presets

Presets can change multiple objects at once in the scene

  • Design Schemes change all connected assets at once to a new ID
  • Variation Groups change a limited group of assets
  • Scenarios can swap sub levels for layout changes.

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Edit Mode

Individual assets can be edited one by one.

The latest version allows to change materials and meshes independently from each other in the same widget.

In older versions, the mesh and material can only be changed together as one choice

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BP_SDotUI3_Variations

This blueprint actor is the link between the interface and the object in the scene. Object and Blueprint need to be in the same level.

Actors

Connect the objects to the Actors array

Choices

Choices can be set from a datatable row, or manually, in each Variation actor in arrays.

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Packaging

Run the editor on its own first, without loading a project. This seems to install any missing "pre-requisite" applications.

Visual Studio

Install the free Visual Studio Community version from the Microsoft's website. The correct version depending on the engine version is required to package a project

Project Settings / Packaging / Advanced

  • List of Maps to include in a packaged built: Add your main level(s) to the list (not the sub levels)
  • Additional Non-Asset Directories to Package: Add the movies directory to the list.

Start Packaging from the Platform Menu

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