Rotating .obj File Objmtlloader Three.js

I used the OBJMTLLoader class for one obj file and rotation worked well around a fixed point on the object by using object.rotation.y -= 0.5. Using the same code (minus changing th

Solution 1:

The object you loaded has a pivot point which came from the model creater software... You need to change the pivot point of the object before you load it with three.js.

If you cannot, you should do it like i had in loader callback:

var loader = new THREE.OBJMTLLoader();
            loader.load('your_file.obj', 'your_file.mtl', function (object) {
                object.traverse(function (child) {
                    child.centroid = new THREE.Vector3();
                    for (var i = 0, l = child.geometry.vertices.length; i < l; i++) {
                        child.centroid.add(child.geometry.vertices[i].clone());
                    }
                    child.centroid.divideScalar(child.geometry.vertices.length);
                    var offset = child.centroid.clone();
                    child.geometry.applyMatrix(new THREE.Matrix4().makeTranslation(-offset.x, -offset.y, -offset.z));
                    child.position.copy(child.centroid);
                    child.geometry.computeBoundingBox();
                });
            });

Then rotate your object...