I need to adjust the position of an object that is already placed in a new location, but currently it is moving from the local position instead of global.
this._scene.updateMatrixWorld();
this._scene.add(mesh);
var v1 = new THREE.Vector3();
v1.setFromMatrixPosition( mesh.matrixWorld );
mesh.position.set(v1.x +2, v1.y + 2, v1.z + 2);
My solution to the issue at hand:
Each mesh in my project has a geometry attribute, allowing me to access it using mesh.geometry. I took advantage of this by creating a BoundingSphere around the mesh.
mesh.geometry.computeBoundingSphere();
With this setup, I can now obtain the world position of the boundingSphere, which is also the world position of the mesh itself.
var vector = mesh.geometry.boundingSphere.center;
Hooray! 'vector' now holds the center world position in (x,y,z) coordinates for your mesh.
Just to be clear, 'mesh' refers to a THREE.Mesh object in this context.
Is it necessary to involve the matrix when you can simply move the object itself by the increment? I don't see why the matrix is needed in this scenario.
mesh.position.set(mesh.position.x +2, mesh.position.y + 2, mesh.position.z + 2);
On second thought, if using the matrix is essential, consider setting the matrixWorld. You may refer to , although utilizing the position setter should suffice for most cases.
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