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Unreal Engine Scenario Simulation

Develop, test, and visualize the performance of driving algorithms in a simulated environment using the Unreal Engine^® from Epic Games^®

Automated Driving Toolbox™ provides a cosimulation framework for modeling and visualizing driving algorithms in Simulink^® in a rich simulation environment. This simulation environment uses the Unreal Engine by Epic Games.

With this simulation environment, you can configure prebuilt scenes, place and move vehicles within the scene, and set up and simulate camera, radar, or lidar sensors on the vehicles. Use this environment to develop, test, and verify the performance of perception, path planning, and control algorithms, including closed-loop algorithms. To learn more, see Unreal Engine Simulation for Automated Driving.

For a tutorial video series on connecting a Simulink vehicle to an Unreal Engine scene, see Using Unreal Engine with Simulink.

Acknowledgements

Simulink model and corresponding Unreal Engine simulation

Blocks

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Scene and Vehicle Configuration

Simulation 3D Scene Configuration	Scene configuration for 3D simulation environment (Since R2019b)
Simulation 3D Vehicle with Ground Following	Implement vehicle that follows ground in 3D environment (Since R2019b)
Simulation 3D Pedestrian	Implement pedestrian in 3D environment (Since R2022b)
Simulation 3D Bicyclist	Implement bicyclist in 3D environment (Since R2022b)
Cuboid To 3D Simulation	Convert actor from cuboid coordinates to 3D simulation coordinates (Since R2020a)

Sensors

Simulation 3D Camera	Camera sensor model with lens in 3D simulation environment (Since R2019b)
Simulation 3D Fisheye Camera	Fisheye camera sensor model in 3D simulation environment (Since R2019b)
Simulation 3D Lidar	Lidar sensor model in 3D simulation environment (Since R2019b)
Simulation 3D Probabilistic Radar	Probabilistic radar sensor model in 3D simulation environment (Since R2019b)
Simulation 3D Probabilistic Radar Configuration	Configure probabilistic radar signatures in 3D simulation environment (Since R2019b)
Simulation 3D Ultrasonic Sensor	Ultrasonic sensor model in 3D simulation environment (Since R2022b)
Simulation 3D Ultrasonic Array	Ultrasonic sensor model with tunable acoustic parameters in 3D simulation environment (Since R2023a)
Simulation 3D Vision Detection Generator	Detect objects and lanes from measurements in 3D simulation environment (Since R2020b)

Scenes and Vehicle Dimensions

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Scenes

Straight Road	Straight road 3D environment
Curved Road	Curved road 3D environment
Parking Lot	Parking lot 3D environment
Large Parking Lot	Large parking lot 3D environment
Open Surface	Open surface 3D environment
Double Lane Change	Double lane change 3D environment
US City Block	US city block 3D environment
US Highway	US highway 3D environment
Virtual Mcity	Virtual Mcity 3D environment

Vehicles

Box Truck	Box truck vehicle dimensions
Hatchback	Hatchback vehicle dimensions
Muscle Car	Muscle car vehicle dimensions
Sedan	Sedan vehicle dimensions
Small Pickup Truck	Small pickup truck vehicle dimensions
Sport Utility Vehicle	Sport utility vehicle dimensions

Apps

Bird's-Eye Scope

Visualize sensor coverages, detections, and tracks

Classes

sim3d.maps Access additional scenes from the server (Since R2022b)

Functions

copyExampleSim3dProject Copy support package files and plugins to specified folders (Since R2022b)

Topics

Simulation Basics

Unreal Engine Simulation for Automated Driving
Learn how to model driving algorithms in Simulink and visualize their performance in a virtual environment using the Unreal Engine from Epic Games.
Unreal Engine Simulation Environment Requirements and Limitations
When simulating in the Unreal Engine environment, keep these software requirements, minimum hardware requirements, and limitations in mind.
How Unreal Engine Simulation for Automated Driving Works
Learn about the co-simulation framework between Simulink and the Unreal Engine and how block execution order affects simulation.
Coordinate Systems for Unreal Engine Simulation in Automated Driving Toolbox
Understand the world and vehicle coordinate systems when simulating in the Unreal Engine environment.
Set Up Top-Down Simulink Visualization for Unreal Engine Simulation
Visualize a top-down view of your Unreal Engine simulation in Simulink.

Simulation with Sensors

Choose a Sensor for Unreal Engine Simulation
Decide which camera, lidar, or radar sensors to use during simulation with the Unreal Engine.
Simulate Simple Driving Scenario and Sensor in Unreal Engine Environment
Learn the basics of configuring and simulating scenes, vehicles, and sensors in a virtual environment rendered using the Unreal Engine from Epic Games.
Depth and Semantic Segmentation Visualization Using Unreal Engine Simulation
Visualize depth and semantic segmentation data captured from a camera sensor in the Unreal Engine simulation environment.
Visualize Sensor Data from Unreal Engine Simulation Environment
Visualize sensor coverage areas and detections obtained from high-fidelity radar and lidar sensors in the Unreal Engine simulation environment.

Scene Customization

Customize Unreal Engine Scenes for Automated Driving

Customize Unreal Engine scenes for automated driving applications.
- STEP 1: Install Support Package for Customizing Scenes
- STEP 2: Migrate Projects Developed Using Prior Support Packages
- STEP 3: Customize Scenes Using Simulink and Unreal Editor
- STEP 4: Package Custom Scenes into Executable
Apply Labels to Unreal Scene Elements for Semantic Segmentation and Object Detection
Apply labels to scene objects to obtain semantic segmentation data from camera sensors or detect custom objects from probabilistic sensors.
Import RoadRunner Scene into Unreal Engine Using Simulink
Import a scene built in RoadRunner into an Unreal Engine simulation in Simulink to generate vision detections and ground-truth semantic segmentation labels for the scene.
Create Top-Down Static Map of Unreal Engine Scene
Generate a static top-down map of your scene using Unreal Editor.
Build Light in Unreal Editor
Build and use lighting in the Unreal^® Editor.
Create Empty Project in Unreal Engine
Create empty project to use in custom scenes.
Place Cameras on Actors in the Unreal Editor
Place the Simulation 3D Camera GetSimulation 3D Camera GetSimulation 3D Camera block on static and custom actors.
Prepare Custom Vehicle Mesh for the Unreal Editor
Create custom vehicle mesh for the Simulation 3D Vehicle and Simulation 3D Vehicle with Ground Following blocks.

Featured Examples

Select Waypoints for Unreal Engine Simulation

Select waypoints from a scene and visualize the path of a vehicle following these waypoints in the Unreal Engine simulation environment.

Open Live Script

Design Lane Marker Detector Using Unreal Engine Simulation Environment

Use the Unreal Engine simulation environment to record synthetic sensor data and develop and test a lane marker detection system.

Open Script

Visualize Automated Parking Valet Using Unreal Engine Simulation

Visualize vehicle motion in Unreal Engine using a parking valet system constructed in Simulink.

Open Live Script

Perception-Based Parking Spot Detection Using Unreal Engine Simulation

Build a bird's-eye-view map of a parking lot using semantically segmented images from the ego vehicle camera, and detect empty parking spots from the map.

Open Live Script

Design Lidar SLAM Algorithm Using Unreal Engine Simulation Environment

Develop a simultaneous localization and mapping algorithm using synthetic lidar sensor data recorded from the Unreal Engine simulation environment.

Open Script

Simulate Vision and Radar Sensors in Unreal Engine Environment

Implement a synthetic data simulation for tracking and sensor fusion using Simulink and the Unreal Engine simulation environment.

Open Script

Build Occupancy Map Using Simulation 3D Ultrasonic Sensor

Build an occupancy map of a US city block using a Simulation 3D Ultrasonic Sensor block and Unreal Engine simulation environment.

Open Live Script

Visualize Logged Data from Unreal Engine Simulation

Customize visualization of logged simulation data using simulation data inspector.

Open Script