Presenting a fully equipped GLTF model prior to incorporating it into the environment

Question

Presenting a fully equipped GLTF model prior to incorporating it into the environment

I've been experimenting with different methods to accomplish this task: I'm looking to load a model and then have the function return it.

var loader = new THREE.GLTFLoader();
loader.crossOrigin = true;

var loadedModel = loader.load('model.gltf', function (data) {
    var object = data.scene;
    return object;
}

Next, I want to call another function and pass loadedModel:

loadToScene(loadedModel);

Additionally, I would like it to load to the scene multiple times if needed. Let's hardcode it for twice in this example:

function loadToScene(model){
model.position.set(0,0,0);
scene.add(model);
model.position.set(0,0,5);
scene.add(model);
}

I struggled to find a way to retain the data.scene once the scope of loader ends. Is there a solution to achieve this?

javascript three.js 3d javascript-objects gltf

Answer 1

Answer №1

If you want to execute the loadToScene function after your .gltf file has finished loading, make sure to place it within the callback function:

var loader = new THREE.GLTFLoader();
loader.crossOrigin = true;

loader.load('model.gltf', function (data) {
    var object = data.scene;

    // Ensure that loadToScene function is called *inside* the callback
    // timing of when the loading completes is uncertain
    loadToScene(object);
}

To include the model twice in the scene, you must first clone it. Simply duplicating the same object won't have any effect:

function loadToScene(model){
    // Add original object
    model.position.set(0,0,0);
    scene.add(model);

    // Clone a copy
    var model2 = model.clone(true);
    model2.position.set(0,0,5);
    scene.add(model2);
}

Answer 2

If you want to execute the loadToScene function after your .gltf file has finished loading, make sure to place it within the callback function:

var loader = new THREE.GLTFLoader();
loader.crossOrigin = true;

loader.load('model.gltf', function (data) {
    var object = data.scene;

    // Ensure that loadToScene function is called *inside* the callback
    // timing of when the loading completes is uncertain
    loadToScene(object);
}

To include the model twice in the scene, you must first clone it. Simply duplicating the same object won't have any effect:

function loadToScene(model){
    // Add original object
    model.position.set(0,0,0);
    scene.add(model);

    // Clone a copy
    var model2 = model.clone(true);
    model2.position.set(0,0,5);
    scene.add(model2);
}

Presenting a fully equipped GLTF model prior to incorporating it into the environment

Answer №1

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