I need to move a camera smoothly along a 3D spline using keyboard input (up arrow key = forwards, down arrow key = backwards). Is there a simple way to do this? I’ve been searching for a tutorial on this but haven’t been able to find anything. Thanks in advance for any help or insight on this!
This ultimately depends on what spline/curve solution you’re using. I think Unity has one, but it’s a case of read the API/docs for your intended curve solution and just build something that takes in input and works with said solution.
New Unity has a splines package. There are free curve solutions in Asset Store. Also, one option is to animate the camera with AnimationController and play it forward and backward.