Issue when setting camera.position to Vector3

[kgoedecke]

Description of the problem

I noticed that when setting the position for PerspectiveCamera to a THREE.Vector3 nothing is displayed, but when I directly set the values, it works just fine.

camera.position.set( 0, 0, 0 );

works, but

var newVector = new THREE.Vector3(0, 0, 0)
camera.position.set(newVector);

doesn't. I was wondering if this is a bug?

See the following two JSFiddle:
L8-10: https://jsfiddle.net/4zqkn7yw/5/
L9: https://jsfiddle.net/4zqkn7yw/4/

Three.js version

• r82

Browser

• All of them
• Chrome
• Firefox
• Internet Explorer

OS

• All of them
• Windows
• macOS
• Linux
• Android
• iOS

Hardware Requirements (graphics card, VR Device, ...)

[Mugen87]

That's not a bug. Try this:

var newVector = new THREE.Vector3( 0, 0, 0 )
camera.position.copy( newVector );

Have a look at the docs of Vector3 in order to understand the API.

[WestLangley]

Object3D's position, rotation, quaternion and scale properties are immutable.

The following pattern is invalid:

object.position = vector;

Instead, you must use either

object.position.set( x, y, z );

or

object.position.copy( vector );

See Object3D.js.