three.js定向灯跟随相机 [英] three.js directional light following camera

问题描述

我在使用Three.js时遇到问题并且在相机后面照明。

I having a problem with Three.js and lighting following a camera.

我正在使用轨道控制鼠标移动/

I am using orbit control for the mouse movement/

在版本号66中，以下用途可以使用

In release number 66 the following use to work

    light = new THREE.DirectionalLight( 0xffffff, 1 );
    light.position = camera.position;
    scene.add(light);

然而，在版本号67和68中，照明不遵循相机。光只显示在一个面上。

However in release number 67 and 68 the lighting doesn't follow the camera. The light is only show on one face.

推荐答案

某些Object3D属性在r68中变为不可变，因此复制到.position直接将不再工作。相反，你需要在这些属性上使用各种方法：

Some of the Object3D properties have become immutable in r68, so copying to .position directly won't work anymore. Instead you need to use the various methods on these properties:

light.position.copy( camera.position );

我自己没有使用这些灯，但是从我收集的文档中我们不认为自动跟随任何事情。而且，这个位置是无关紧要的，因为它们的行为就像它们距离无限远;只有轮换才重要。

I've not used these lights myself, but from the documentation I gather that they aren't supposed to automatically follow anything. Also, the position is irrelevant since they act like they're an infinite distance away; only the rotation matters.

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