load

This example shows how to build an actor from an imported 3D file using MATLAB®. If you have a custom actor defined in a supported 3D file, you can import the file. You can import 3D file formats including FBX, STL, and URDF.

To build an actor from an imported 3D file using Simulink®, see Build Actor from Imported 3D File Using Simulink.

You can use the sim3d.World object and functions to create and view a 3D environment. You can use the sim3d.Actor object and functions to create an actor in the 3D environment and build an appearance for the actor from an imported 3D file. Use the load function of the sim3d.Actor object to import the file.

world = sim3d.World();

rotor = sim3d.Actor(ActorName='Rotor');
load(rotor,'rotor.stl', 0.01*[1 1 1]);
rotor.Rotation = [0 pi/2 0];
add(world,rotor);

viewport = createViewport(world,Translation=[-0.5 0 0]);

sampletime = 0.01;
stoptime = 5;
run(world,sampletime,stoptime)

delete(world)

Import a scene built in RoadRunner into the Unreal Engine® simulation environment. To export a RoadRunner scene, use the option CARLA Filmbox. For more information, see Export Using CARLA Filmbox (RoadRunner). For more information on the exported RoadRunner scene files, see the Project parameter of the Simulation 3D Scene Configuration block.

Create a world object using sim3d.World.

world = sim3d.World();

Create an empty actor using the sim3d.Actor object. Load the Filmbox (.fbx) file to import the RoadRunner scene. To add a vehicle and simulate in this scene, set the sim3d.Actor object properties, Shadows and PreciseContacts to 1.

scene = sim3d.Actor(ActorName='RoadRunnerScene');
add(world,scene);
filepath = fullfile(pwd,'Data','sim3dRoad.fbx');
load(scene,filepath);

Set the Simulation 3D Viewer window point of view and run the simulation.

viewport = createViewport(world);
viewport.Translation = [-2, 0, 1];
sampletime = 0.01;
stoptime = 5;
run(world,sampletime,stoptime);