Fixed angle movement

Hello, I want to implement this effect now, fix a view at any location on the model, and then press the up and down left and right keys to move the model along a fixed angle. This effect is good, but there is no good example. Thank you

What have you tried so far?

camera.position.set( camera.position.x, camera.position.y, camera.position.z - 2 );
control.target.set( control.target.x, control.target.y, control.target.z - 2 );

I can’t really understand what you are trying to do from that. Could you try making a working example using codepen or jsfiddle?

Simply put, it is to use three to implement the ground walking function, or roaming function
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Are any of these controls suitable?

https://threejs.org/examples/?q=Controls