solved Custom camera...moving camera forward/backward at current rotation?

[jps0611]

Howdy,

I'm building a custom camera controller using the CameraDirection and CameraRotation in order to preserve the inherent camera inertia. How the heck do I move the camera forward/backward using CameraDirection at the current Camera Rotation?

Thanks!

JPS

[jps0611]

Ah! Just simple trigonometry. 

For moving forward:

camera.cameraDirection.x += Math.sin(camera.rotation.y);
camera.cameraDirection.z += Math.cos(camera.rotation.y);

 

[brianzinn]

Not as efficient, but you can also do some one liners with Vector3 Methods (untested):

camera.cameraDirection.addInPlace(
   new Vector3(Math.sin(camera.rotation.y), 0, Math.cos(camera.rotation.y)).scale(forward ? 1 : -1)
);

note: if you are building something to share, I think the Z needs to be inverse on right-handed scenes.

[Guest]

Flagging as solved