在 Three.js 中沿其 LookAt 轴移动相机? [英] Move the camera along its LookAt axis in Three.js?

问题描述

我是 Three.js 的新手，所以如果这很明显，那么请提前道歉.

I'm new to Three.js, so if this is obvious then apologies upfront.

我使用 LookAt 方法设置了我的相机，并希望在按下键盘上的某个键时沿着该向量移动.

I set my camera using the LookAt method, and would like to move along that vector when pressing a key on the keyboard.

我尝试通过从我通过 subVector 观察的点减去相机矢量来模仿该特征，对结果矢量进行归一化，然后按照以下方式进行操作:

I've tried mimicking the feature by subtracting the camera vector from the point I'm looking at via subVector, normalized the resulting vector, then did something along the lines of:

camera.position.x += lookAtVector.x
camera.position.y += lookAtVector.y
camera.position.z += lookAtVector.z

...但是当我这样做时，我似乎有点漂移并且没有朝着lookAt点移动.如何在three.js中沿着lookAt向量移动?

...but I appear to be drifting a bit and not moving toward the lookAt point when I do this. How can I move along a lookAt vector in three.js?

推荐答案

相机正俯视它的负 Z 轴，所以你想这样做:

The camera is looking down it's negative-Z axis, so you want to do this:

camera.translateZ( - distance );

three.js r.57

three.js r.57

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