Imported mesh rotation

Questions
1

Hi guys, i’m very new to Babylon.js but i’m impressed with it’s stability but still if found it very confusing to work with in some cases so i want to ask community for best approaches.

So here is my code:
`var canvas = document.getElementById(“renderCanvas”);

    var engine = null;
    var scene = null;
    var sceneToRender = null;

    var createDefaultEngine = function() { return new BABYLON.Engine(canvas, true, { preserveDrawingBuffer: true, stencil: true }); };
    var delayCreateScene = function () {
        // Create a scene.
        var scene = new BABYLON.Scene(engine);
    
        // Create a default skybox with an environment.
        var hdrTexture = BABYLON.CubeTexture.CreateFromPrefilteredData("textures/environment.dds", scene);
        var currentSkybox = scene.createDefaultSkybox(hdrTexture, true);
        var camera = new BABYLON.ArcRotateCamera("Camera", 0, 0, 0, new BABYLON.Vector3(0, 0, 0 ), scene);
        camera.setPosition(new BABYLON.Vector3(0, 0, 70));

    
        // Append glTF model to scene.
        BABYLON.SceneLoader.ImportMesh(
            null, 
            "scene/", 
            "scene.gltf", 
            scene, 
            function (meshes) {

            // Create a default arc rotate camera and light.
            // scene.createDefaultCameraOrLight(true, true, true);
            meshes[0].rotation = new BABYLON.Vector3(1, 0, 0);
    
            // The default camera looks at the back of the asset.
            // Rotate the camera by 180 degrees to the front of the asset.
            // scene.activeCamera.alpha += Math.PI;
        });
    
        return scene;
    };
var engine;
try {
engine = createDefaultEngine();
} catch(e) {
console.log("the available createEngine function failed. Creating the default engine instead");
engine = createDefaultEngine();
}
    if (!engine) throw 'engine should not be null.';
    scene = delayCreateScene();;
    sceneToRender = scene

    engine.runRenderLoop(function () {
        if (sceneToRender) {
            sceneToRender.render();
        }
    });

    // Resize
    window.addEventListener("resize", function () {
        engine.resize();
    });`

What i want to achieve is the simple rotation loop for imported mesh.

2

also the fun thing i noticed
if i will set imported mesh to

meshes[0].rotation.x = 200;

it will not work. It works only if i will do

meshes[0].rotation = new BABYLON.Vector3(0, 0, 0);
meshes[0].rotation.x = 200;

Is that how it suppose to be?

3

ok, here is how i did it

               scene.registerBeforeRender(function () {
			        meshes[0].rotation.y += 0.003;
			    });
4

See https://doc.babylonjs.com/resources/rotation_conventions#historical-warning