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Unreal Engine Scenario Applications

Build and interact with virtual world

The Simulink^® 3D Animation™ provides functionality to build, visualize, and interact with virtual world and perform agent-based modeling by using the Unreal Engine^® environment.

Access advanced features available in the Unreal Engine, such as collision detection, and the physics engine, and set lighting and atmospheric conditions through the MATLAB^® and Simulink interfaces.
Algorithmically build virtual worlds using 3D assets, in different supported file formats,including FBX, STL, and URDF.
Use the MATLAB API and Simulink blocks to control and access all objects in the virtual scene and set visual, spatial, and other properties. You can also use this API to control other functionality, such as navigation behavior, collision events, and the video output of a camera or depth sensor attached to the object.
Create or delete objects as you work and independently control object instances.

Empty scene showing coordinate system and the sun

Classes

`sim3d.Actor`	Object used to define actors in the virtual world (Since R2022b)
`sim3d.World`	Object used to define virtual world in Unreal Engine environment (Since R2022b)
`sim3d.sensors.IdealCamera`	Capture an image and make it available in MATLAB (Since R2022b)
`sim3d.sensors.MainCamera`	Define perspective in Unreal executable window (Since R2022b)

Functions

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Actor

`copy`	Copy all properties from another actor (Since R2022b)
`propagate`	Propagate value of selected property to actor and its children (Since R2022b)
`gather`	Return values of selected property from all objects in selected branch (Since R2022b)
`findBy`	Find all actors that match specified criteria (Since R2022b)
`createMesh`	Create new mesh with specified values (Since R2022b)
`addMesh`	Append mesh on top of current mesh (Since R2022b)
`load`	Load or import 3D file (Since R2022b)
`save`	Save actor and children to a MAT file (Since R2022b)
`createShape`	Create geometry for basic primitives (Since R2022b)

World

`add`	Add actor to virtual world (Since R2022b)
`run`	Run cosimulation in virtual reality world (Since R2022b)
`createViewport`	Create viewport for world (Since R2022b)
`remove`	Remove actor added to world or remove all actors in world (Since R2023a)

Sensor

read Return image captured with camera (Since R2022b)

Blocks

Simulation 3D Actor	Define actors in Unreal Engine viewer (Since R2022b)
Simulation 3D Actor Transform Get	Get actor translation, rotation, scale (Since R2022b)
Simulation 3D Actor Transform Set	Set actor translation, rotation, scale (Since R2022b)
Simulation 3D Camera Get	Camera image (Since R2022b)
Simulation 3D Scene Configuration	Scene configuration for 3D simulation environment (Since R2022b)

Scenes

Empty Scene

Empty environment

Concepts

Get Started Creating Virtual World with Actors
Use sim3d classes or Simulation 3D blocks to create and interact with virtual world in the Simulation 3D Viewer.
Interact with Actors and Virtual World
Control the actors in virtual world and navigate in virtual world during simulation.
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.

Examples and How To

Create World and Actor
Use Simulink and MATLAB to create an actor in a virtual world.
Build Actor from 3D Graphic Primitives
Use createShape to build an actor from a 3D primitive graphic using Simulink and MATLAB.
Build Actor from Mesh Data and Apply Texture
Use createMesh to build an actor from mesh data using Simulink and MATLAB.
Animate Actors Using Kinetics Properties
Use sim3d.Actor properties, including Force and Torque to simulate actors in the virtual world.
View Actor Orientation in MATLAB Coordinate System
Use CoordinateSystem property of sim3d.Actor object to represent actor orientation in the virtual world.
Delete Actor During Simulation
Remove an actor during simulation using Simulink and MATLAB.