MATLAB: How to control the which car is controlled in the Unreal Editor in MATLAB R2018a

simulinkVehicle Dynamics Blockset

I am trying to get started with using the unreal engine for 3d visualization and would like to clarify if it is possible to control more than 2 cars in the unreal engine simulation using the editor mode. In addition to this I would like more detail on how I can specify which car in the unreal engine is controlled by a specific control signal.

Best Answer

Follow these steps to add a new controllable vehicle.

1) Add a “sim 3d pass veh” actor in the editor mode.

2) Click on the added actor to highlight it in World Outliner section of the editor and search of “tag” as shown in screen shot 1 and 2.

3) Click on the + sign shown in screen shot 2.

4) Add a name tag for the vehicle as shown in screen shot 3. Generally we follow SimulinkVehicle followed by any numeric value.

5) In Simulink model set Actor tag for “Simulation 3d Actor Transform Set” block to the same name that is added in editor.

This should control the newly added vehicle in the editor mode. To change the camera view while simulation is running, keep the editor window in focus and hit “Tab” key. That will switch between camera views when there are multiple vehicles.

Related Solutions

MATLAB: How to start cosimulation between the Unreal Engine Editor and Simulink Vehicle Dynamics Blockset

First, you need to install the Vehicle Dynamics Blockset Interface for Unreal Engine 4 Projects support package:

https://www.mathworks.com/matlabcentral/fileexchange/65966-vehicle-dynamics-blockset-interface-for-unreal-engine-4-projects

Instructions for setting up for Editor co-simulation are included in the 'AVE_README.pdf' in the support package, which you can open from the MATLAB Command Window using this command:

open('AVE_README.pdf')

Please note that you need to install the Unreal Engine Editor on your machine and have Unreal Engine 4.19 installed prior to running the scripts in the PDF.

Once these are installed, follow the instructions for Method B in the PDF. This script will place the MathWorks Plugin in the Unreal Engine Plugins folder and start the Unreal Engine Editor. You must start the engine from this MATLAB command, or the Unreal Engine may crash when attempting to simulate.

Once the Unreal Engine Editor is open, you can co-simulate with Simulink using the following steps:

1. Ensure that the Scene Config block is set to "Editor" mode.

2. Start simulation in Simulink.

3. Once the Simulink model reaches the initialization stage (displayed at the bottom left of the window) it will begin searching for a running instance of the unreal engine editor. Prior to or during the initialization stage, you must press the "Play" button in the Unreal Engine Editor to enter the game state.

4. If the Unreal Engine Editor does not enter the simulating/game state in time, the Simulink model will error out with this error message:

3D Simulation engine interface writer setup error. Is the 3D Simulation engine running?

You should see the Unreal Engine Editor enter the playing state as cosimulation starts.

MATLAB: Flying Multiple UAVs using MATLAB’s Unreal Engine Simulation Evironment

You can add and move multiple UAVs in Unreal Engine simulation by inserting multiple Simulation 3D UAV Vehicle blocks.

Best Answer

Related Solutions

MATLAB: How to start cosimulation between the Unreal Engine Editor and Simulink Vehicle Dynamics Blockset

MATLAB: Flying Multiple UAVs using MATLAB’s Unreal Engine Simulation Evironment

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